WO2016092839A1 - 電池 - Google Patents
電池 Download PDFInfo
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- WO2016092839A1 WO2016092839A1 PCT/JP2015/006126 JP2015006126W WO2016092839A1 WO 2016092839 A1 WO2016092839 A1 WO 2016092839A1 JP 2015006126 W JP2015006126 W JP 2015006126W WO 2016092839 A1 WO2016092839 A1 WO 2016092839A1
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- WIPO (PCT)
- Prior art keywords
- battery
- battery cell
- graphite sheet
- sheet
- container
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/08—Structural combinations, e.g. assembly or connection, of hybrid or EDL capacitors with other electric components, at least one hybrid or EDL capacitor being the main component
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G17/00—Structural combinations of capacitors or other devices covered by at least two different main groups of this subclass with other electric elements, not covered by this subclass, e.g. RC combinations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- This disclosure relates to a battery such as a lithium secondary battery used for various electronic devices or in-vehicle use.
- a laminated secondary battery represented by a lithium ion secondary battery is a laminated body in which positive and negative electrode plates are alternately laminated, a cell case that accommodates the laminated body, and an electrolysis filled in the cell case. It is composed of liquid.
- Such a secondary battery is generally used as an assembled battery by accommodating a plurality of battery cells in one battery container.
- a temperature difference becomes large between a plurality of battery cells, charging / discharging of a high-temperature battery cell is accelerated and deteriorated more easily than a relatively low-temperature battery cell. Further, the battery cell may expand when it deteriorates.
- a method of detecting the expansion of the battery cell there is a method of attaching a strain gauge to the battery.
- Patent Document 1 A technique for detecting the expansion of a battery by attaching a strain gauge to the battery is disclosed in Patent Document 1.
- Patent Document 1 has a problem that the outer shape of the battery is increased and the battery is easily deteriorated because of high temperature.
- the battery according to the present disclosure includes a storage container, at least one of a first battery cell and a second battery cell arranged in the storage container, a space between the storage container and the first battery cell, and the first battery.
- a graphite sheet disposed between at least one of the cell and the second battery cell, the graphite sheet having a terminal portion for taking out an electric signal.
- the battery of the present disclosure solves the above-described problem, and can achieve uniform temperature between a plurality of battery cells and detect expansion of the battery cells.
- FIG. 1 is a cross-sectional view of the battery in the first embodiment.
- FIG. 2A is an exploded perspective view of the capacitor unit according to the first embodiment.
- 2B is an exploded perspective view of the capacitor unit according to Embodiment 1.
- FIG. FIG. 3 is a cross-sectional view when the battery cell in Embodiment 1 is expanded.
- FIG. 4 is a cross-sectional view of the battery in the second embodiment.
- FIG. 5 is an exploded perspective view of the capacitor unit according to the second embodiment.
- FIG. 6 is a cross-sectional view when the battery cell in Embodiment 2 is expanded.
- FIG. 7A is a cross-sectional view of the battery according to Embodiment 3.
- FIG. 7B is a cross-sectional view of a battery in a modification of the third embodiment.
- FIG. 7C is a cross-sectional view of a battery in a modification of the third embodiment.
- FIG. 1 is a cross-sectional view of battery 10 in the first embodiment.
- FIG. 2A is an exploded perspective view of the capacitor unit 100 in the storage container 11 of the battery 10.
- the battery 10 shown in FIG. 1 is a lithium ion secondary battery.
- the battery 10 includes a metal container 11, three battery cells 12a, a battery cell 12b, and a battery cell 12c arranged in the container 11, and the battery cell 12a, the battery cell 12b, and the battery cell 12c.
- Capacitor portion 100 is arranged so as to sew between each.
- the capacitor unit 100 is provided with a graphite sheet 13a having terminals 14 for detecting an electrical signal at an end, a heat insulating sheet 17 on the upper surface of the graphite sheet 13a, and an insulating layer 16 on the lower surface. ing. Furthermore, a dielectric layer 15 is provided on the upper surface of the heat insulating sheet 17.
- the capacitor unit described in this specification refers to a component including at least a graphite sheet and interposed between a plurality of battery cells and between a battery cell and a storage container, and the components are limited. is not.
- the graphite sheet 13a is a conductor used as an electrode.
- the graphite sheet 13a is a pyrolytic graphite sheet obtained by thermally decomposing a polymer and has a thickness of about 25 ⁇ m. Since the pyrolytic graphite sheet has higher flexibility than, for example, a graphite sheet obtained by pressing and hardening a graphite piece, it can be easily disposed between battery cells.
- the thermal conductivity of the pyrolytic graphite sheet is about 1200 W / m ⁇ K, which is extremely higher than the thermal conductivity of copper frequently used as an electrode, for example. From the above, the pyrolytic graphite sheet is particularly useful as a heat radiating member used in a narrow space.
- the terminal 14 of the graphite sheet 13a shown in FIG. 2A indicates a portion from which a part of the end of the graphite sheet 13a protrudes.
- the terminal 14 of the graphite sheet 13a may be a connection terminal for connecting the graphite sheet 13a and an external terminal using the graphite sheet 13a as an electrode.
- the graphite sheet 13 a and an external terminal may be connected, and the terminal 14 made of a material different from that of the graphite sheet 13 a may be used.
- the material constituting the dielectric layer 15 is urethane, and the thickness is about 100 ⁇ m.
- the material constituting the insulating layer 16 is polyethylene terephthalate (hereinafter referred to as PET), and the thickness is about 10 ⁇ m.
- the heat insulation sheet 17 carries silica xerogel between the fibers of a fiber sheet made of nonwoven fabric.
- Silica xerogel has a nano-sized void structure that regulates the movement of air molecules and has low thermal conductivity.
- the thermal conductivity of the heat insulating sheet 17 using this silica xerogel is about 0.018 to 0.024 W / m ⁇ K.
- the heat insulating sheet 17 is useful as a heat insulating member used particularly in a narrow space like the pyrolytic graphite sheet. Since the heat conductivity of this heat insulation sheet 17 is lower than the heat conductivity of air, for example, the heat insulation performance is higher than the case where an air layer is provided as a heat insulation layer between battery cells. As described above, the heat insulating sheet is useful, for example, when there is a concern about the firing of a plurality of battery cells, and contributes to the downsizing of the battery because it is useful for use in a narrow space.
- the heat insulation sheet 17 shown in FIG. 1 was provided between each of the battery cell 12a, the battery cell 12b, and the battery cell 12c, the battery cell 12a and the battery cell 12b are used as a single heat insulation sheet similarly to the capacitor part 100. Further, the battery cells 12c may be arranged so as to be sewn.
- the storage container 11 may be laminated with, for example, an aluminum metal layer other than the metal storage container 11.
- the graphite sheet 13a provided in the capacitor unit 100 transfers the heat generated in the battery cell 12a, the battery cell 12b, and the battery cell 12c to thereby transfer the battery cell 12a, the battery cell 12b, and the battery cell 12c.
- the temperature difference in can be reduced. That is, the graphite sheet 13a can soak the inside of each of the battery cells 12a, the battery cells 12b, and the battery cells 12c or between the battery cells 12a, the battery cells 12b, and the battery cells 12c.
- Battery cells expand in volume as they degrade. Due to the expansion of the battery cell, the members in the container are subjected to compressive stress and are distorted.
- the battery according to the present disclosure detects the expansion of the battery cell by detecting the strain of the member as a change in capacitance value.
- FIG. 3 is a cross-sectional view of the capacitor unit 100 when the battery cell 12b and the battery cell 12c are expanded. As shown in FIG. 3, when the battery cell 12b and the battery cell 12c deteriorate and the volume expands, the capacitor unit 100 is subjected to compressive stress and the capacitor unit 100 is distorted.
- the battery 10 has a configuration capable of detecting a change in the capacitance value of the capacitor unit 100 due to distortion of the capacitor unit 100.
- the capacitance value is measured by using a graphite sheet 13a, which is a conductor, and the battery cell 12b as a pair of electrodes, and converting the capacitance value of the dielectric layer 15 disposed between the pair of electrodes into an electrical signal. Is detected.
- the outer surface of the battery cell 12b used as an electrode is made of a conductor such as metal.
- the insulating layer 16 is provided between the battery cell 12a, the battery cell 12b, and the battery cell 12c, and insulates the battery cell 12a, the battery cell 12b, and the battery cell 12c from each other.
- the graphite sheet 13a which is a conductor
- the container 11 are used as a pair of electrodes, and the capacitance value of the dielectric layer 15 disposed between the pair of electrodes is converted into an electric signal and detected. You can also.
- the inner surface of the container 11 used as an electrode is made of a conductor such as metal.
- the pyrolytic graphite sheet generally has a higher thermal conductivity and a smaller linear expansion coefficient than metals such as copper, which are generally used as electrodes. Furthermore, since the change in physical properties such as electrical conductivity due to temperature is small compared to copper or the like, the influence of the change in capacitance value due to temperature can be reduced, so that the expansion of the battery cell can be detected with high accuracy. .
- the relative dielectric constant of the material constituting the dielectric layer 15 is preferably 3 or more. By setting the relative dielectric constant of the dielectric layer 15 to 3 or more, the capacitance value between the pair of electrodes is increased, and the expansion of the battery cell can be accurately detected even with a small amount of strain.
- the Young's modulus of the material constituting the insulating layer 16 is preferably larger than the Young's modulus of the material constituting the dielectric layer 15. It is preferable to make the material constituting the insulating layer 16 larger than the Young's modulus of the material constituting the dielectric layer 15. By doing so, the amount of strain due to the compressive stress is larger in the dielectric layer 15 than in the insulating layer 16, and the amount of change in the capacitance value is also large, so that the expansion of the battery cell can be detected with high accuracy. . Further, the Young's modulus of the insulating layer 16 is more preferably 2 GPa or more, and the expansion of the battery cell can be detected with higher accuracy.
- FIG. 2B shows a capacitor unit 200 different from the configuration of the capacitor unit 100 of FIG. 2A.
- 2B includes a graphite sheet 13a having terminals 14 for detecting an electrical signal at an end, a heat insulating sheet 17 on the upper surface of the graphite sheet 13a, a lower surface of the graphite sheet 13a, and an upper surface of the heat insulating sheet 17. Are each provided with a dielectric layer 15.
- the capacitor unit 200 shown in FIG. 2B can form two pairs of electrodes using the graphite sheet 13a as a common electrode by providing dielectric layers both above and below the graphite sheet 13a.
- one of the two pairs of electrodes is a graphite sheet 13a, and the other electrode is selected from the battery cell 12b and the battery cell 12c or the storage container 11, and the capacitance values of the two dielectric layers 15 are selected. Since the change can be detected as an electric signal, the expansion of the battery cell can be detected with higher accuracy.
- FIG. 4 is a cross-sectional view of battery 20 in the second embodiment.
- FIG. 5 is an exploded perspective view of the capacitor unit 300 in the storage container 11 of the battery 20.
- the battery 20 includes two graphite sheets 13a and 13b each having a terminal 14 for detecting an electric signal at the end.
- Capacitor portion 300 has a surface on which graphite sheets 13a and 13b, dielectric layer 15 and heat insulating sheet 17 provided between graphite sheets 13a and 13b, and dielectric layers 15 of graphite sheets 13a and 13b are provided. Two insulating layers 16 are provided on each of the opposite surfaces. Since battery 20 includes two graphite sheets 13a and 13b, it can transfer more heat than battery 10 of Embodiment 1, and the temperatures in battery cell 12a, battery cell 12b, and battery cell 12c can be increased. The difference can be further reduced.
- FIG. 6 is a cross-sectional view of the capacitor unit 300 when the battery cell 12b and the battery cell 12c are expanded. As shown in FIG. 6, for example, when the battery cell 12b and the battery cell 12c deteriorate and the volume expands, the capacitor unit 300 is subjected to compressive stress and the capacitor unit 300 is distorted.
- the battery 20 has a configuration capable of detecting a change in the capacitance value of the capacitor unit 300 due to the distortion of the capacitor unit 300.
- the capacitance value is measured by using the graphite sheets 13a and 13b, which are conductors, as a pair of electrodes, and converting the capacitance value of the dielectric layer 15 disposed between the pair of electrodes into an electrical signal.
- the insulating layer is provided between the battery cell 12a, the battery cell 12b, and the battery cell 12c, and insulates the battery cell 12a, the battery cell 12b, and the battery cell 12c.
- any one of the graphite sheets 13a and 13b, which is a conductor, and either the battery cell 12a, the battery cell 12b, or the battery cell 12c, or the container 11 is disposed as a pair of electrodes, and is disposed between the pair of electrodes. It is also possible to detect the capacitance value of the dielectric layer 15 by converting it into an electrical signal. At this time, the exterior body surface or the inner surface of the container 11 in any of the battery cells used as the pair of electrodes is a conductor such as metal.
- the single capacitor unit 100 described is configured to be sewn between the battery cell 12a, the battery cell 12b, and the battery cell 12c, but the configuration of the capacitor unit is as follows. The configuration is not limited to this. Hereinafter, a battery having a plurality of capacitor portions between battery cells will be described.
- FIG. 7A is a cross-sectional view of battery 30 in the third embodiment.
- the battery 30 includes a plurality of capacitor portions 400 between the battery cells 12a, the battery cells 12b, and the battery cells 12c.
- the plurality of capacitor portions 400 are attached to the battery cells 12a, the battery cells 12b, and the battery cells 12c, respectively. It is attached.
- the capacitor unit 400 includes a graphite sheet 13a and a graphite sheet 13b, and includes a dielectric layer and a heat insulating sheet between the graphite sheet 13a and the graphite sheet 13b.
- the battery 30 has a graphite sheet 13a and a graphite sheet 13b, which are conductors, as a pair of electrodes when any one of the battery cell 12a, the battery cell 12b, and the battery cell 12c deteriorates and expands, and the pair of electrodes is interposed between the pair of electrodes.
- the capacitance value of the disposed dielectric layer 15 is detected by converting it into an electrical signal.
- FIG. 7B shows a modification of the battery in the third embodiment.
- the battery 40 includes a plurality of capacitor units 500 between the battery cells 12a, the battery cells 12b, and the battery cells 12c.
- the plurality of capacitor units 500 are attached to the battery cells 12a, the battery cells 12b, and the battery cells 12c, respectively. It has been.
- the capacitor unit 500 the graphite sheet 13a, the graphite sheet 13b, the two dielectric layers 15 between the graphite sheet 13a and the graphite sheet 13b, and the space 18 between the two dielectric layers 15 are provided. .
- the battery 40 can distinguish only when the expansion amount of the battery cell is small and when it is large, and can detect only the expansion of the battery cell as the expansion of the battery cell.
- the dielectric layer 15 is distorted even by a slight expansion of the battery cell caused by charge / discharge of the battery performed as usual, and the capacitance value of the dielectric layer 15 is Change.
- the space 18 is preferentially crushed by the compressive stress due to the slight expansion of the battery cell, and the compressive stress is not applied to the dielectric layer 15.
- the capacitance value does not change. That is, the battery 40 can distinguish and detect the case where the expansion of the battery cell is slight and the rapid expansion caused by, for example, gas generated when the battery is overcharged.
- FIG. 7C shows a modification of the battery in the third embodiment.
- the heat insulating sheet 17 is provided in the region of the space 18 of the plurality of capacitor units 500 in the battery 40.
- the heat insulating sheet 17 is provided between each of the battery cells 12a, the battery cells 12b, and the battery cells 12c.
- the heat insulating sheet 17 has a lower thermal conductivity than the space 18 made of, for example, an air layer, and is preferable as a heat insulating member.
- the battery according to the present disclosure is industrially useful because it can reduce deterioration of the battery cell, obtain a small battery, and provide a safe battery by detecting the expansion of the battery cell.
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
以下、実施の形態1における電池について、図面を参照しながら説明する。
以下、実施の形態2における電池20について図面を参照しながら説明する。
以下、実施の形態3における電池について図面を参照しながら説明する。
11 収容容器
12a 電池セル
12b 電池セル
12c 電池セル
13a グラファイトシート
13b グラファイトシート
14 端子
15 誘電体層
16 絶縁層
17 断熱シート
18 スペース
20 電池
30 電池
40 電池
50 電池
60 電池
100 キャパシタ部
200 キャパシタ部
300 キャパシタ部
400 キャパシタ部
500 キャパシタ部
Claims (11)
- 収容容器と、
前記収容容器の中に配置された第1の電池セルおよび第2の電池セルの少なくとも一方と、
前記収容容器と前記第1の電池セルとの間および前記第1の電池セルと前記第2の電池セルとの間の少なくとも一方の間に配置されたグラファイトシートと、を備え、
前記グラファイトシートは、電気信号を取り出すための端子部を有する電池。 - 前記第1の電池セルと前記収容容器とのうちの一方と前記グラファイトシートとの間における静電容量値を電気信号に変換して検出するキャパシタ部をさらに備えた、請求項1に記載の電池。
- 前記第1の電池セルと前記収容容器とのうちの一方と前記グラファイトシートとの間に配置された誘電体層をさらに備え、
前記キャパシタ部は、前記第1の電池セルおよび前記第2の電池セルの少なくとも一方が膨張することで歪む前記誘電体層の静電容量値の変化を電気信号に変換して検出する、請求項2に記載の電池。 - 前記第1の電池セルと前記第2の電池セルとの間に配置されている断熱シートと誘電体層とをさらに備える、請求項1に記載の電池。
- 前記第1の電池セルと前記第2の電池セルとの間において前記グラファイトシートは、前記断熱シートと前記誘電体層との間に配置されている、請求項4に記載の電池。
- 収容容器と、
前記収容容器の中に配置された電池セルと、
前記収容容器の中に配置された第1のグラファイトシートおよび第2のグラファイトシートと、を備え、
前記第1のグラファイトシートと前記第2のグラファイトシートとは電気信号を取り出すための第1の端子部と第2の端子部とをそれぞれ有する、電池。 - 前記第1のグラファイトシートと前記第2のグラファイトシートとの間における静電容量値を電気信号に変換して検出するキャパシタ部をさらに備えた、請求項4に記載の電池。
- 前記第1のグラファイトシートと前記第2のグラファイトシートとの間に配置されている誘電体層をさらに備え、
前記キャパシタ部は、前記電池セルが膨張することで歪む前記誘電体層の静電容量値の変化を電気信号に変換して検出する、請求項6に記載の電池。 - 前記第1のグラファイトシートと前記第2のグラファイトシートとの間に配置されている断熱シートと誘電体層とを、さらに備え、
前記電池セルは少なくとも第1の電池セルと第2の電池セルとを有し、
前記第1のグラファイトシートおよび前記第2のグラファイトシートは前記第1の電池セルと前記第2の電池セルの間に配置されている、請求項6に記載の電池。 - 前記断熱シートは、不織布と、前記不織布に坦持されたキセロゲルとを有する、請求項4または9のいずれかに記載の電池。
- 前記誘電体層のヤング率は前記断熱シートのヤング率よりも低い、請求項4または9のいずれかに記載の電池。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/522,325 US10476102B2 (en) | 2014-12-10 | 2015-12-09 | Battery |
| CN201580063396.7A CN107004797B (zh) | 2014-12-10 | 2015-12-09 | 电池 |
| JP2016563515A JP6681551B2 (ja) | 2014-12-10 | 2015-12-09 | 電池 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-250072 | 2014-12-10 | ||
| JP2014250072 | 2014-12-10 |
Publications (1)
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| WO2016092839A1 true WO2016092839A1 (ja) | 2016-06-16 |
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| PCT/JP2015/006126 Ceased WO2016092839A1 (ja) | 2014-12-10 | 2015-12-09 | 電池 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10476102B2 (ja) |
| JP (1) | JP6681551B2 (ja) |
| CN (1) | CN107004797B (ja) |
| WO (1) | WO2016092839A1 (ja) |
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| JP2018137078A (ja) * | 2017-02-21 | 2018-08-30 | Tdk株式会社 | 蓄電池 |
| WO2019098231A1 (ja) * | 2017-11-17 | 2019-05-23 | 日東電工株式会社 | バッテリーカバー |
| CN111052433A (zh) * | 2017-10-24 | 2020-04-21 | 松下知识产权经营株式会社 | 电池单元以及使用其的电池组 |
| JP2021507483A (ja) * | 2017-12-21 | 2021-02-22 | ハー カー オー イゾリアー ウント テクスティルテヒニーク ゲゼルシャフト ミット ベシュレンクテル ハフツング | 電池用の多層断熱要素 |
| JP2021190396A (ja) * | 2020-06-04 | 2021-12-13 | パナソニックIpマネジメント株式会社 | 電池パック |
| JP2022530946A (ja) * | 2019-04-25 | 2022-07-05 | Hapsモバイル株式会社 | バッテリパック設計および方法 |
| JP2022549926A (ja) * | 2020-07-03 | 2022-11-29 | エルジー エナジー ソリューション リミテッド | 隣接するバッテリーモジュール間の熱拡散防止構造を有するバッテリーパック、及びそれを含むessと自動車 |
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| US20210226264A1 (en) * | 2020-01-20 | 2021-07-22 | Cirque Corporation | Battery Swell Detection |
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| JP2018137078A (ja) * | 2017-02-21 | 2018-08-30 | Tdk株式会社 | 蓄電池 |
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| WO2019098231A1 (ja) * | 2017-11-17 | 2019-05-23 | 日東電工株式会社 | バッテリーカバー |
| JP7557019B2 (ja) | 2017-12-21 | 2024-09-26 | ハー カー オー イゾリアー ウント テクスティルテヒニーク ゲゼルシャフト ミット ベシュレンクテル ハフツング | 電池用の多層断熱要素 |
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| US12095066B2 (en) | 2017-12-21 | 2024-09-17 | H.K.O. Isolier—Und Textiltechnik Gmbh | Multi-layer thermal insulation element for batteries |
| JP7373488B2 (ja) | 2017-12-21 | 2023-11-02 | ハー カー オー イゾリアー ウント テクスティルテヒニーク ゲゼルシャフト ミット ベシュレンクテル ハフツング | 電池用の多層断熱要素 |
| JP7304428B2 (ja) | 2019-04-25 | 2023-07-06 | Hapsモバイル株式会社 | バッテリパック設計および方法 |
| JP2022530946A (ja) * | 2019-04-25 | 2022-07-05 | Hapsモバイル株式会社 | バッテリパック設計および方法 |
| JP2021190396A (ja) * | 2020-06-04 | 2021-12-13 | パナソニックIpマネジメント株式会社 | 電池パック |
| JP7617548B2 (ja) | 2020-06-04 | 2025-01-20 | パナソニックIpマネジメント株式会社 | 電池パック |
| JP2023171373A (ja) * | 2020-07-03 | 2023-12-01 | エルジー エナジー ソリューション リミテッド | 隣接するバッテリーモジュール間の熱拡散防止構造を有するバッテリーパック、及びそれを含むessと自動車 |
| JP7346727B2 (ja) | 2020-07-03 | 2023-09-19 | エルジー エナジー ソリューション リミテッド | 隣接するバッテリーモジュール間の熱拡散防止構造を有するバッテリーパック、及びそれを含むessと自動車 |
| JP2022549926A (ja) * | 2020-07-03 | 2022-11-29 | エルジー エナジー ソリューション リミテッド | 隣接するバッテリーモジュール間の熱拡散防止構造を有するバッテリーパック、及びそれを含むessと自動車 |
| JP7714609B2 (ja) | 2020-07-03 | 2025-07-29 | エルジー エナジー ソリューション リミテッド | 隣接するバッテリーモジュール間の熱拡散防止構造を有するバッテリーパック、及びそれを含むessと自動車 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107004797B (zh) | 2020-05-19 |
| JP6681551B2 (ja) | 2020-04-15 |
| US20170324110A1 (en) | 2017-11-09 |
| JPWO2016092839A1 (ja) | 2017-09-21 |
| US10476102B2 (en) | 2019-11-12 |
| CN107004797A (zh) | 2017-08-01 |
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