TWI877954B - Battery selection methods based on battery exchange period and battery energy stations thereof，and computer program products - Google Patents

Abstract

Battery selection methods based on battery exchange period and battery energy stations thereof are provided, which are suitable for a battery energy station used for storing and charging a plurality of batteries. First, the battery energy station obtains a specific battery thus to receive a battery exchange request. Then, the power of the specific battery is obtained, and a battery exchange interval corresponding to the specific battery is obtained, wherein the battery exchange interval represents the interval from the last time the specific battery was exchanged to a current time. It is determined whether the battery exchange interval is greater than a preset interval, and whether there is a first candidate battery among the batteries, wherein the power of the first candidate battery is greater than a predetermined ratio of the power of the specific battery. When the battery exchange interval is greater than the preset interval and the first candidate battery exists, the first candidate battery is provided for the battery exchange request. When the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, a second candidate battery is selected among the batteries, and the second candidate battery is provided for the battery exchange request, wherein the power of the second candidate battery is the one with the highest power among the batteries.

Description

Battery selection method based on battery exchange period and battery energy station, and computer program product thereof

The present invention relates to a battery selection method and a battery energy station thereof, and in particular to a method and a battery energy station thereof that can select batteries in a battery energy station based on the battery exchange period to provide battery exchange.

In recent years, with the rise of environmental awareness and the advancement of electric vehicle technology, the development of electric vehicles powered by electricity to replace traditional vehicles powered by fossil fuels has gradually become an important goal in the automotive field, making electric vehicles more and more popular. In order to improve the range and willingness of electric vehicles, many countries or cities have begun to plan to set up charging stations and battery energy stations in public places to provide electric cars and/or electric motorcycles with charging or battery exchange, making the use of electric vehicles more convenient.

For different electric vehicles, the charging or battery demand during peak hours and off-peak hours may be different. For example, the battery demand of electric motorcycles during peak hours will be higher than that during off-peak hours. During peak hours, the battery energy station needs to charge the battery at a high speed to make the battery reach full charge as soon as possible. However, during off-peak hours, since the battery demand is not high, the battery energy station can charge the battery slowly to meet the specific battery demand while saving costs.

On the other hand, since battery charging requires time to wait, electric scooter users usually use battery swapping as a power replenishment mechanism during busy commuting hours. Generally speaking, batteries are one of the most important costs for operators, and charging batteries have a limited life cycle. Therefore, how to properly charge and swap batteries in battery energy stations has become an urgent problem that the industry needs to solve. In addition, since batteries have their own design limitations, battery swapping can collect or update relevant data in the battery in a timely manner to maintain the health of the battery. Therefore, how to encourage users to swap batteries and maintain the safety and efficiency of users' battery use are very important issues for operators.

Therefore, the purpose of the present invention is to provide a battery selection method based on the battery replacement period that can overcome the above problems.

Therefore, the battery selection method based on the battery exchange period of the present invention is applicable to a battery energy station for storing and charging a plurality of batteries. First, a specific battery is obtained by using the battery energy station to receive a battery exchange request. Then, the power of the specific battery is obtained, and a battery exchange interval of the specific battery is obtained, wherein the battery exchange interval represents the interval from the last exchange of the specific battery to the current time. Then, it is determined whether the battery exchange interval is greater than a preset interval, and whether there is a first candidate battery among the batteries, wherein the power of the first candidate battery is greater than a predetermined ratio of the power of the specific battery. When the battery exchange interval is greater than the preset interval and the first candidate battery exists, the first candidate battery is provided in response to the battery exchange request. When the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, a second candidate battery among the batteries is selected and provided in response to the battery exchange request, wherein the power of the second candidate battery is the highest among the batteries.

In some embodiments, when the battery exchange interval is not greater than the preset interval and the first candidate battery exists, the first candidate battery is provided in response to the battery exchange request. When the battery exchange interval is not greater than the preset interval and the first candidate battery does not exist, the battery exchange request is canceled and the specific battery is returned.

In some embodiments, when the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, it further includes sending a notification to a user device corresponding to the specific battery, wherein the notification includes at least information of a specific battery energy station, the specific battery energy station has at least a third candidate battery, and the power of the third candidate battery is greater than the predetermined ratio of the power of the specific battery.

In some embodiments, when the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, the battery energy station sends an indication to a remote server via a network. In response to the indication, the remote server selects the specific battery energy station from a plurality of candidate battery energy stations according to a location of the battery energy station, and sends the notification to the user device corresponding to the specific battery via the network.

In some embodiments, the battery energy station obtains a battery identification code corresponding to the specific battery and transmits the battery identification code to a remote server via a network. The remote server retrieves the battery exchange interval corresponding to the specific battery based on the battery identification code and transmits the battery exchange interval to the battery energy station via the network.

In some embodiments, the remote server determines whether the battery exchange interval corresponding to the specific battery exceeds a first interval, wherein the first interval is less than or equal to the preset interval. When the battery exchange interval corresponding to the specific battery exceeds the first interval, the remote server retrieves a user device corresponding to the specific battery according to the battery identification code, and sends a battery exchange reminder notification to the user device via the network.

In some embodiments, the remote server determines whether the battery exchange interval corresponding to the specific battery exceeds the preset interval. When the battery exchange interval corresponding to the specific battery exceeds the preset interval, the remote server retrieves a user device corresponding to the specific battery according to the battery identification code, and transmits a specific instruction to the user device through the network, so as to disable at least one function of an application on the user device.

In some embodiments, the battery energy station reads the battery swap interval directly from one of the storage cells of the particular battery.

Another purpose of the present invention is to provide a battery energy station.

Therefore, the battery energy station of the present invention includes a battery storage system having a plurality of batteries, and a processing unit. The battery storage system includes a plurality of batteries, and obtains a specific battery. The processing unit receives a battery exchange request corresponding to the acquisition of the specific battery, obtains the power of the specific battery, and obtains a battery exchange interval corresponding to the specific battery, wherein the battery exchange interval represents the interval from the last exchange of the specific battery to a current time. The processing unit determines whether the battery exchange interval is greater than a preset interval, and determines whether there is a first candidate battery among the batteries, wherein the power of the first candidate battery is greater than a predetermined ratio of the power of the specific battery. When the battery exchange interval is greater than the preset interval and the first candidate battery exists, the processing unit provides the first candidate battery in response to the battery exchange request. When the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, the processing unit selects a second candidate battery from the batteries and provides the second candidate battery in response to the battery exchange request, wherein the power of the second candidate battery is the highest among the batteries.

The above method of the present invention can exist in the form of program code. When the program code is loaded and executed by a machine, the machine becomes a device for implementing the present invention. Therefore, another purpose of the present invention is to provide a computer program product as described above.

Therefore, the computer program product of the present invention is loaded into a machine to execute a battery selection method based on a battery exchange period, and is applicable to a battery energy station for receiving and charging a plurality of batteries. The computer program product includes a first program code, a second program code, a third program code, a fourth program code, a fifth program code, and a sixth program code. The first program code is used to obtain a specific battery to receive a battery exchange request. The second program code is used to obtain the power of the specific battery. The third program code is used to obtain a battery exchange interval corresponding to the specific battery, wherein the battery exchange interval represents the interval from the last exchange of the specific battery to a current time. The fourth program code is used to determine whether the battery exchange interval is greater than a preset interval, and to determine whether there is a first candidate battery among the batteries, wherein the power of the first candidate battery is greater than a predetermined ratio of the power of the specific battery. The fifth program code is used to provide the first candidate battery in response to the battery exchange request when the battery exchange interval is greater than the preset interval and the first candidate battery exists. The sixth program code is used to select a second candidate battery among the batteries when the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, and to provide the second candidate battery in response to the battery exchange request, wherein the power of the second candidate battery is the highest among the batteries.

The utility of the present invention is that: through the battery selection method based on the battery exchange period and the battery energy station of the present invention, a reminder mechanism can be provided according to the battery exchange period, and the battery in the battery energy station can be selected to perform the battery exchange mechanism, thereby avoiding the battery health and efficiency being affected when the battery is not replaced for a long time.

100:Battery Energy Station

110:Battery storage system

112:Battery

120: Energy module

130: Network connection unit

140: Processing unit

200: Remote server

S302, S304, S306, S308, S310, S312, S314, S316: Steps

S402, S404, S406, S408, S410, S412, S414, S416, S418, S420, S422: Steps

S510, S520: Steps

S610: Step

S710, S720, S730, S740: Steps

S810, S820, S830, S840, S850, S860, S870: Steps

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a schematic diagram showing a battery energy station according to an embodiment of the present invention; FIG. 2 is a schematic diagram showing a battery energy station according to another embodiment of the present invention; FIG. 3 is a flow chart showing a battery selection method based on a battery exchange period according to an embodiment of the present invention; FIG. 4 is a flow chart showing a battery selection method based on a battery exchange period according to another embodiment of the present invention. Selection method; Figure 5 is a flow chart showing a battery selection method based on a battery exchange period according to another embodiment of the present invention; Figure 6 is a flow chart showing a method for obtaining a battery exchange interval of a corresponding battery according to an embodiment of the present invention; Figure 7 is a flow chart showing a method for obtaining a battery exchange interval of a corresponding battery according to another embodiment of the present invention; and Figure 8 is a flow chart showing a battery selection method based on a battery exchange period according to another embodiment of the present invention.

FIG. 1 shows a battery energy station according to an embodiment of the present invention. A battery energy station 100 according to an embodiment of the present invention can be applied to an electronic device. As shown in the figure, the battery energy station 100 at least includes a battery storage system 110, an energy module 120, a network connection unit 130, and a processing unit 140. The battery storage system 110 has a specific mechanism (not shown in the figure) that can store a plurality of batteries 112 and selectively lock or release the batteries. The battery energy station 100 can provide batteries to at least one electrical device, such as an electric motorcycle or an electric car. The energy module 120 can be electrically coupled to a power grid (not shown in the figure) to obtain a total current to supply electricity to the battery energy station, and charge the batteries 112 according to the signal of the processing unit 140. It must be explained that the battery storage system 110 can include a charging module corresponding to each battery 112, and the charging module has an upper current limit and/or a lower current limit to charge the corresponding battery. It is worth noting that in some embodiments, the energy module 120 can actively detect the total current supplied by the power grid to the battery energy station 100, and notify the processing unit 140 of the corresponding total current information. The network connection unit 130 can be connected to a network, so that the battery energy station 100 has a network connection capability. In some embodiments, the network can be a wired network, a telecommunications network, and a wireless network, such as a Wi-Fi network. The processing unit 140 can control the operation of all hardware and software in the battery energy station 100 and execute the battery selection method based on the battery exchange period of this case, the details of which will be described later.

FIG. 2 shows a battery energy station according to another embodiment of the present invention. Similarly, the battery energy station 100 according to the embodiment of the present invention can be applied to an electronic device, which has a plurality of batteries that can be provided to at least one electric device, such as an electric motorcycle or an electric car. The battery energy station 100 can have similar components as those in FIG. 1, which will not be described in detail here. The battery energy station 100 can be connected to a remote server 200 through a network 210, such as a wired network, a telecommunications network, and a wireless network, such as a Wi-Fi network, using a network connection unit 130. It should be noted that in some embodiments, the remote server 200 can simultaneously manage other battery energy stations located at the same location or at different locations. As mentioned above, the energy module 120 of the battery energy station 100 can actively detect the total current supplied by the power grid to the battery energy station 100, and notify the processing unit 140 of the corresponding total current information. In some embodiments, the remote server 200 can also notify the battery energy station 100 of the corresponding total current information through the network 210. In some embodiments, the remote server 200 can also transmit relevant information of different time periods, such as peak hours, off-peak hours, etc. to the battery energy station 100 through the network 210. In some embodiments, the remote server 200 can also transmit relevant user information to the battery energy station 100 through the network 210. The battery energy station 100 can perform related operations based on the received information.

FIG. 3 shows a battery selection method based on a battery exchange period according to an embodiment of the present invention. The battery selection method based on a battery exchange period according to an embodiment of the present invention is applicable to an electronic device for storing and charging a plurality of batteries, such as the battery energy station in FIG. 1.

First, as in step S302, a specific battery is obtained by the battery energy station to receive a battery exchange request. In some embodiments, when a user places a specific battery into an empty slot of the battery energy station, the battery energy station can automatically obtain the battery exchange request. Thereafter, as in step S304, the battery energy station obtains the power of the corresponding specific battery, and as in step S306, obtains a battery exchange interval of the corresponding specific battery. It is noted that the battery exchange interval can represent the interval from the last exchange of the specific battery to the present time. In other words, the battery exchange interval represents how long the battery has not been exchanged. It is noted that in this case, the battery exchange interval of the corresponding battery can be obtained in different ways, and the details will be described later. Next, as in step S308, determine whether the battery exchange interval is greater than a preset interval. It is worth noting that in some embodiments, the preset interval may be 30 days. It should be noted that the aforementioned preset interval is only an example of this case, and the present invention is not limited thereto. When the battery exchange interval is not greater than the preset interval (No in step S308), the process ends. When the battery exchange interval is greater than the preset interval (Yes in step S308), as in step S310, determine whether there is a first candidate battery among the batteries in the battery energy station. The power of the first candidate battery may be greater than a predetermined ratio of the power of the specific battery, such as 5%. When the first candidate battery exists in the battery energy station (Yes in step S310), the first candidate battery is provided in response to the battery exchange request, as in step S312, to complete the battery exchange operation. When the first candidate battery does not exist in the battery energy station (No in step S310), a second candidate battery is selected from the batteries in the battery energy station, as in step S314, and the second candidate battery is provided in response to the battery exchange request, as in step S316, to complete the battery exchange operation. The power of the second candidate battery is the highest among all the batteries in the battery energy station.

FIG. 4 shows a battery selection method based on a battery exchange period according to another embodiment of the present invention. The battery selection method based on a battery exchange period according to an embodiment of the present invention is applicable to an electronic device for storing and charging a plurality of batteries, such as the battery energy station in FIG. 1.

First, as in step S402, a specific battery is obtained by using the battery energy station to receive a battery exchange request. Similarly, in some embodiments, when a user places a specific battery into an empty slot of the battery energy station, the battery energy station can automatically obtain the battery exchange request. Thereafter, as in step S404, the battery energy station obtains the power of the corresponding specific battery, and as in step S406, obtains a battery exchange interval of the corresponding specific battery. It is noted that the battery exchange interval can represent the interval from the last exchange of the specific battery to the present time. In other words, the battery exchange interval indicates how long it has been since the battery was replaced. Next, as in step S408, it is determined whether the battery exchange interval is greater than a preset interval. It is worth noting that in some embodiments, the preset interval may be 30 days. It should be noted that the aforementioned preset interval is only an example of the present case, and the present invention is not limited thereto. When the battery exchange interval is greater than the preset interval (yes in step S408), as in step S410, determine whether there is a first candidate battery among the batteries in the battery energy station. The power of the first candidate battery may be greater than a predetermined ratio of the power of the specific battery, such as 5%. When the first candidate battery exists in the battery energy station (yes in step S410), as in step S412, the first candidate battery is provided in response to the battery exchange request to complete the battery exchange operation. When the first candidate battery does not exist in the battery energy station (No in step S410), as in step S414, a second candidate battery is selected from the batteries in the battery energy station, and as in step S416, the second candidate battery is provided in response to the battery exchange request to complete the battery exchange operation. The power of the second candidate battery is the highest power of all batteries in the battery energy station. When the battery exchange interval is not greater than the preset interval (No in step S408), as in step S418, it is determined whether there is a first candidate battery in the batteries in the battery energy station. Similarly, the power of the first candidate battery can be greater than a predetermined ratio of the power of the specific battery, such as 5%. When the first candidate battery exists in the battery energy station (Yes in step S418), as in step S420, the first candidate battery is provided in response to the battery exchange request to complete the battery exchange operation. When the first candidate battery does not exist in the battery energy station (No in step S418), as in step S422, the battery exchange request is canceled and the specific battery is returned. In other words, the battery exchange operation corresponding to the specific battery is canceled.

As mentioned above, when the battery replacement interval is greater than the preset interval, the user may replace the battery with a battery with less power than the original battery. Therefore, the present invention will also notify the user to perform further battery replacement procedures.

FIG. 5 shows a battery selection method based on a battery exchange period according to another embodiment of the present invention. The battery selection method based on a battery exchange period according to an embodiment of the present invention is applicable to an electronic device for storing and charging a plurality of batteries, such as the battery energy station in FIG. 1.

When the battery exchange interval is greater than the preset interval, and the battery energy station does not have a first candidate battery with a power greater than a predetermined ratio of the power of the specific battery, in addition to selecting the second candidate battery with the highest power among the remaining batteries of the battery energy station as shown in FIG. 3, the battery energy station can also send an instruction to a remote server through a network, such as a wired network, a telecommunications network, and a wireless network, such as a Wi-Fi network, as in step S510. As in step S520, in response to the instruction, the remote server selects a specific battery energy station from a plurality of candidate battery energy stations according to a location of the battery energy station, and sends a notification to a user device corresponding to the specific battery through the network. It should be noted that the notification may include at least the information of the specific battery energy station, and the specific battery energy station has at least one third candidate battery, the power of the third candidate battery is greater than the predetermined ratio of the power of the specific battery.

As mentioned above, the present invention can obtain the battery exchange interval of the corresponding battery in different ways. FIG. 6 shows a method for obtaining the battery exchange interval of the corresponding battery according to an embodiment of the present invention. As shown in step S610, the battery energy station directly reads the battery exchange interval from a storage unit of the specific battery. It should be noted that the specific battery may include a battery management system to record the time of the last battery exchange in the storage unit.

FIG. 7 shows a method for obtaining a battery exchange interval of a corresponding battery according to another embodiment of the present invention. First, as in step S710, the battery energy station obtains a battery identification code corresponding to the specific battery, and as in step S720, transmits the battery identification code to a remote server via a network, such as a wired network, a telecommunications network, and a wireless network, such as a Wi-Fi network. Then, as in step S730, the remote server retrieves the battery exchange interval corresponding to the specific battery according to the battery identification code, and as in step S740, transmits the battery exchange interval to the battery energy station via the network. It should be noted that in this embodiment, when each battery is replaced at the battery energy station, the relevant data of the corresponding battery replacement operation, such as the battery identification code, battery replacement time, etc., will be sent back to the remote server for recording by the remote server.

FIG. 8 shows a battery selection method based on a battery exchange period according to another embodiment of the present invention. In this embodiment, the remote server further manages the battery exchange interval corresponding to each battery.

First, as in step S810, determine whether the battery exchange interval of the corresponding specific battery is greater than a preset interval, such as 30 days. Similarly, the aforementioned preset interval is only an example of this case, and the present invention is not limited thereto. When the battery exchange interval is not greater than the preset interval (No in step S820), as in step S830, determine whether the battery exchange interval of the corresponding specific battery is greater than a first interval. It should be noted that the first interval is less than the preset interval. For example, the first interval can be 15 days, and the preset interval can be, for example, 30 days. When the battery exchange interval of the corresponding specific battery is not greater than the first interval (No in step S830), the process ends. When the battery exchange interval of the corresponding specific battery is greater than the first interval (yes in step S830), as in step S840, the remote server retrieves a user device corresponding to the specific battery according to the battery identification code of the corresponding specific battery, and as in step S850, transmits a battery exchange reminder notification to the user device via a network, such as a wired network, a telecommunications network, and a wireless network, such as a Wi-Fi network. When the battery exchange interval is greater than the preset interval (Yes in step S820), as in step S860, the remote server retrieves a user device corresponding to the specific battery according to the battery identification code, and as in step S870, transmits a specific command to the user device via the network, so as to disable at least one function of an application on the user device, such as the function of turning on the ignition of an electric vehicle.

Therefore, through the battery selection method based on the battery exchange period and the battery energy station of this case, a reminder mechanism can be provided according to the battery exchange period, and the battery in the battery energy station can be selected to perform the battery exchange mechanism, thereby avoiding the battery health and efficiency being affected when the battery is not replaced for a long time.

The method of the present invention, or a specific form or part thereof, may exist in the form of program code. The program code may be contained in a physical medium, such as a floppy disk, an optical disk, a hard disk, or any other machine-readable (such as computer-readable) storage medium, or a computer program product that is not limited to an external form, wherein when the program code is loaded and executed by a machine, such as a computer, the machine becomes an apparatus for participating in the present invention. The program code may also be transmitted through some transmission medium, such as wires or cables, optical fibers, or any transmission type, wherein when the program code is received, loaded and executed by a machine, such as a computer, the machine becomes an apparatus for participating in the present invention. When implemented on a general-purpose processing unit, the code combines with the processing unit to provide a unique device that operates like an application-specific logic circuit.

The computer program product of the present invention is loaded into a machine to execute a battery selection method based on a battery exchange period, and is applicable to a battery energy station for storing and charging a plurality of batteries. The computer program product includes a first program code, a second program code, a third program code, a fourth program code, a fifth program code, and a sixth program code. The first program code is used to obtain a specific battery to receive a battery exchange request. The second program code is used to obtain the power of the specific battery. The third program code is used to obtain a battery exchange interval corresponding to the specific battery, wherein the battery exchange interval represents the interval from the last exchange of the specific battery to a current time. The fourth program code is used to determine whether the battery exchange interval is greater than a preset interval, and to determine whether there is a first candidate battery among the batteries, wherein the power of the first candidate battery is greater than a predetermined ratio of the power of the specific battery. The fifth program code is used to provide the first candidate battery in response to the battery exchange request when the battery exchange interval is greater than the preset interval and the first candidate battery exists. The sixth program code is used to select a second candidate battery among the batteries when the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, and to provide the second candidate battery in response to the battery exchange request, wherein the power of the second candidate battery is the highest among the batteries.

However, the above is only an example of the implementation of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the patent of the present invention.

S302, S304, S306, S308, S310, S312, S314, S316: Steps

Claims (10)

A battery selection method based on battery exchange deadline is applicable to a battery energy station for storing and charging a plurality of batteries, comprising the following steps: using the battery energy station to obtain a specific battery to receive a battery exchange request; obtaining the power of the specific battery; obtaining a battery exchange interval corresponding to the specific battery, wherein the battery exchange interval represents the interval from the last exchange of the specific battery to a current time; determining whether the battery exchange interval is greater than a preset interval, and determining whether there is a first battery in the batteries; candidate batteries, wherein the power of the first candidate battery is greater than a predetermined ratio of the power of the specific battery; when the battery exchange interval is greater than the preset interval and the first candidate battery exists, the first candidate battery is provided in response to the battery exchange request; and when the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, a second candidate battery among the batteries is selected and the second candidate battery is provided in response to the battery exchange request, wherein the power of the second candidate battery is the highest among the batteries. The battery selection method based on the battery exchange period as described in claim 1 further includes the following steps: when the battery exchange interval is not greater than the preset interval and the first candidate battery exists, providing the first candidate battery in response to the battery exchange request; and When the battery exchange interval is not greater than the preset interval and the first candidate battery does not exist, canceling the battery exchange request and returning the specific battery. The battery selection method based on the battery exchange period as described in claim 1, wherein when the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, further includes sending a notification to a user device corresponding to the specific battery, wherein the notification at least includes information of a specific battery energy station, the specific battery energy station has at least one third candidate battery, and the power of the third candidate battery is greater than the predetermined ratio of the power of the specific battery. The battery selection method based on the battery exchange period as described in claim 3, when the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, further includes the following steps: the battery energy station transmits an instruction to a remote server via a network; corresponding to the instruction, the remote server selects the specific battery energy station from a plurality of candidate battery energy stations according to a location of the battery energy station; and the remote server transmits the notification to the user device corresponding to the specific battery via the network. The battery selection method based on the battery exchange period as described in claim 1 further includes the following steps: the battery energy station obtains a battery identification code corresponding to the specific battery; the battery energy station transmits the battery identification code to a remote server via a network; the remote server retrieves the battery exchange interval corresponding to the specific battery based on the battery identification code; and the remote server transmits the battery exchange interval to the battery energy station via the network. The battery selection method based on the battery exchange period as described in claim 5 further includes the following steps: the remote server determines whether the battery exchange interval corresponding to the specific battery exceeds a first interval, wherein the first interval is less than or equal to the preset interval; and when the battery exchange interval corresponding to the specific battery exceeds the first interval, the remote server retrieves a user device corresponding to the specific battery according to the battery identification code, and transmits a battery exchange reminder notification to the user device via the network. The battery selection method based on the battery exchange period as described in claim 5 further includes the following steps: the remote server determines whether the battery exchange interval corresponding to the specific battery exceeds the preset interval; and when the battery exchange interval corresponding to the specific battery exceeds the preset interval, the remote server retrieves a user device corresponding to the specific battery according to the battery identification code, and transmits a specific instruction to the user device through the network, so as to disable at least one function of an application on the user device. The battery selection method based on the battery exchange period as described in claim 1 further includes the battery energy station directly reading the battery exchange interval from one of the storage units of the specific battery. A battery energy station includes: a battery storage system including a plurality of batteries and obtaining a specific battery; and a processing unit for receiving a battery exchange request corresponding to the acquisition of the specific battery, obtaining the power of the specific battery, and obtaining a battery exchange interval corresponding to the specific battery, wherein the battery exchange interval indicates the interval from the last exchange of the specific battery to a current time, determining whether the battery exchange interval is greater than a preset interval, and determining whether there is a first candidate battery among the batteries, The power of the first candidate battery is greater than a predetermined ratio of the power of the specific battery. When the battery exchange interval is greater than the preset interval and the first candidate battery exists, the first candidate battery is provided in response to the battery exchange request. When the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, a second candidate battery among the batteries is selected and provided in response to the battery exchange request, wherein the power of the second candidate battery is the highest among the batteries. A computer program product is loaded into a machine to execute a battery selection method based on a battery exchange period, and is applicable to a battery energy station for storing and charging a plurality of batteries. The computer program product includes: a first program code for obtaining a specific battery to receive a battery exchange request; a second program code for obtaining the power of the specific battery; a third program code for obtaining a battery exchange interval corresponding to the specific battery, wherein the battery exchange interval represents the interval from the last exchange of the specific battery to a current time; a fourth program code for determining whether the battery exchange interval is greater than a preset interval. interval, and judge whether there is a first candidate battery among the batteries, wherein the power of the first candidate battery is greater than a predetermined ratio of the power of the specific battery; a fifth program code, for providing the first candidate battery in response to the battery exchange request when the battery exchange interval is greater than the preset interval and the first candidate battery exists; and a sixth program code, for selecting a second candidate battery among the batteries and providing the second candidate battery in response to the battery exchange request when the battery exchange interval is greater than the preset interval and the first candidate battery does not exist, wherein the power of the second candidate battery is the highest among the batteries.