CN2578989Y - Liquid lithium ionic accumulator with flexible package - Google Patents
Liquid lithium ionic accumulator with flexible package Download PDFInfo
- Publication number
- CN2578989Y CN2578989Y CN02285476.2U CN02285476U CN2578989Y CN 2578989 Y CN2578989 Y CN 2578989Y CN 02285476 U CN02285476 U CN 02285476U CN 2578989 Y CN2578989 Y CN 2578989Y
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- CN
- China
- Prior art keywords
- flexible package
- accumulator
- hard fixed
- fixed mount
- battery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007788 liquid Substances 0.000 title claims abstract description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052744 lithium Inorganic materials 0.000 title abstract 2
- 239000007769 metal material Substances 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 12
- 229910001416 lithium ion Inorganic materials 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 12
- -1 polypropylene Polymers 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 3
- 239000013354 porous framework Substances 0.000 claims 2
- 239000004411 aluminium Substances 0.000 claims 1
- 230000004888 barrier function Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000002131 composite material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009459 flexible packaging Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000005021 flexible packaging material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
-
- 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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
技术领域technical field
本实用新型涉及一种软包装液态锂离子蓄电池，属能源技术领域。The utility model relates to a soft-packaged liquid lithium ion storage battery, which belongs to the technical field of energy.
发明背景Background of the invention
一般液态锂离子蓄电池均采用金属外壳，在盖板或外壳上装有防爆装置，不足之处是外壳及盖板加工复杂、成本高、较重，电池制作亦有加工工艺复杂、设备投入大、电池成品率低、有时可能因防爆装置失效而发生事故等缺点。为此，目前的液态锂离子蓄电池也有采用软包装的，即用铝塑复合膜代替金属外壳。但简单的用软包装材料代替金属外壳而不做其它改变不能起到另人满意的效果，因为软包装材料的强度有限，电池在充放电过程中由于电极材料晶格的变化，使得电极出现胀缩现象，阴阳极板间距离因此会发生变化，如果这种变化超过一定范围，则电池性能急剧恶化，甚至不能正常工作。因此，需保证电池极板间的距离在一个小的且很窄的变化范围内。而软包装材料不能起到这样的作用。荷兰菲利浦公司的软包装液态锂离子技术是在电极板间垂直于极板方向加入聚合物铆钉，使极板间距离保持在一定范围，电池外部用软包装。日本一些公司的液态锂离子蓄电池在软包装内的正负极间加入聚合物胶固定极板的位置。上述两种方法制造的液态锂离子蓄电池存在工艺复杂，成品率低，设备投资大等缺点。Generally, liquid lithium-ion batteries adopt metal casings, and explosion-proof devices are installed on the cover or casing. The disadvantages are that the casing and cover are complicated to process, high in cost, and heavy. The yield rate is low, and sometimes accidents may occur due to the failure of the explosion-proof device. For this reason, the current liquid lithium-ion batteries also use flexible packaging, that is, aluminum-plastic composite films are used instead of metal casings. However, simply replacing the metal shell with a flexible packaging material without making other changes cannot achieve satisfactory results, because the strength of the flexible packaging material is limited, and the electrode will expand and shrink due to the change of the electrode material lattice during the charging and discharging process. , the distance between the cathode and anode plates will therefore change. If this change exceeds a certain range, the performance of the battery will deteriorate sharply, or even fail to work properly. Therefore, it is necessary to ensure that the distance between the battery plates is within a small and narrow range of variation. However, flexible packaging materials cannot play such a role. The flexible packaging liquid lithium ion technology of Philips in the Netherlands is to add polymer rivets between the electrode plates perpendicular to the direction of the plates, so that the distance between the plates can be kept within a certain range, and the battery is externally packaged with flexible packaging. In the liquid lithium-ion batteries of some Japanese companies, polymer glue is added between the positive and negative electrodes in the soft package to fix the position of the plates. The liquid lithium-ion storage battery manufactured by the above two methods has the disadvantages of complex process, low yield and large equipment investment.
发明内容Contents of the invention
本实用新型的目的是为了克服上述已有技术的缺点与不足，而提供一种制作方法简单的软包装液态锂离子蓄电池，从而提高了产品性能，也提高了成品率，降低了成本。The purpose of the utility model is to overcome the shortcomings and deficiencies of the above-mentioned prior art, and provide a soft-packed liquid lithium-ion battery with a simple manufacturing method, thereby improving product performance, increasing yield and reducing cost.
本实用新型的目的是通过下列技术方案实现的：The purpose of this utility model is achieved through the following technical solutions:
软包装液态锂离子蓄电池，包括正极(1)、负极(2)、隔膜(3)、电解液和外壳(4)，其特征在于蓄电池的外壳为用铝塑复合膜制作的软包装体，紧挨软包装内壁的为固定电池极组的硬固定架(5)，硬固定架为金属材料或非金属材料制作的多孔框架形。Soft-packaged liquid lithium-ion battery, including positive electrode (1), negative electrode (2), diaphragm (3), electrolyte and shell (4), is characterized in that the shell of the battery is a soft package made of aluminum-plastic composite film, close to the flexible package The inner wall is a hard fixing frame (5) for fixing the battery pole group, and the hard fixing frame is in the shape of a porous frame made of metal material or non-metallic material.
蓄电池的外壳也可以是金属材料或非金属材料制作的多孔框架形的硬固定架，内层为用铝塑复合膜制作的封装电池极组的软包装体；硬固定架的孔形状可以是圆孔、矩形孔、多边形孔和不规则形状；硬固定架可以是正六面体、圆柱体、弧形六面体；所述的金属材料为铝、铝合金、不锈钢、镍或铜；所述的非金属材料为硬质塑料的聚丙烯、聚乙烯、聚四氟乙烯；所述的硬固定架也可以是无孔框架形。The outer casing of the storage battery can also be a porous frame-shaped rigid holder made of metal or non-metallic materials, and the inner layer is a soft package made of aluminum-plastic composite film to encapsulate the battery pole group; the hole shape of the rigid holder can be a round hole , rectangular holes, polygonal holes and irregular shapes; the hard fixture can be a regular hexahedron, cylinder, arc hexahedron; the metal material is aluminum, aluminum alloy, stainless steel, nickel or copper; the non-metallic material is hard Polypropylene, polyethylene, polytetrafluoroethylene of high-quality plastic; Described hard fixation frame also can be the shape of non-porous frame.
由于采用上述技术方案，使本实用新型技术与已有技术相比，具有制作方法简单、产品成品率高、成本低、性能稳定、安全性好等优点及效果。Due to the adoption of the above technical scheme, compared with the prior art, the utility model technology has the advantages and effects of simple manufacturing method, high product yield, low cost, stable performance, and good safety.
附图说明：Description of drawings:
图1为本实用新型的软包装液态锂离子蓄电池结构示意图。Fig. 1 is a schematic structural diagram of a soft-packaged liquid lithium-ion battery of the present invention.
具体实施方式Detailed ways
软包装液态锂离子蓄电池，如图1所示，它包括正极(1)、负极(2)、隔膜(3)、电解液(图中未示)和外壳(4)，蓄电池的外壳为铝塑复合膜制作的软包装体，它可提高电池重量比能量和安全性，同时可热压成形，起到密封、隔离的作用，其工艺简单，设备投资少。紧挨软包装内壁们为固定电池极组的硬固定架(5)，硬固定架为多孔框架形，它即起到固定电池极组，保持电池正、负板间距离的作用，同时又可降低蓄电池的重量，而且硬固定架加工时可采用已有的多孔板折形后焊接工艺成形，省去了常用的激光焊接工艺，降低生产成本。硬固定架可用金属材料为铝、铝合金、不锈钢、镍和铜等，也可用非金属材料为硬质塑料的聚丙烯、聚乙烯、聚四氟乙烯。Soft-packaged liquid lithium-ion battery, as shown in Figure 1, it includes positive electrode (1), negative electrode (2), diaphragm (3), electrolyte (not shown in the figure) and shell (4), the shell of the battery is aluminum-plastic composite The flexible packaging body made of film can improve the weight specific energy and safety of the battery. At the same time, it can be formed by hot pressing to play the role of sealing and isolation. The process is simple and the investment in equipment is small. Close to the inner wall of the soft package is the hard fixing frame (5) for fixing the battery pole group. The hard fixing frame is in the shape of a porous frame, which can fix the battery pole group and maintain the distance between the positive and negative plates of the battery, and at the same time reduce the The weight of the storage battery is reduced, and the existing porous plate can be folded and then welded by the existing welding process when processing the hard fixing frame, which saves the commonly used laser welding process and reduces production costs. The available metallic material of hard fixing frame is aluminum, aluminum alloy, stainless steel, nickel and copper etc., and also available non-metallic material is polypropylene, polyethylene, polytetrafluoroethylene of hard plastic.
多孔的硬固定架的孔形状可以是圆孔、矩形孔、多边形孔和不规则孔。固定框架也可以是无孔框架形(图中未示)。硬固定架围成的空间可以是正六面体、圆柱体、弧形六面体和其它需要的形状，使产品更加多样化。The hole shape of the porous hard fixing frame can be circular hole, rectangular hole, polygonal hole and irregular hole. The fixed frame can also be a frame without holes (not shown). The space surrounded by the hard fixing frame can be a regular hexahedron, cylinder, curved hexahedron and other required shapes, making the products more diversified.
本实用新型的软包装液态锂离子蓄电池，其外壳也可是用金属材料或非金属材料制作的多孔框架形硬固定架(图中未示)，内层用铝塑复合膜制作软包装密封电池极组，同样可降低重量，加工简便，安全可靠。In the soft-packaged liquid lithium-ion storage battery of the present utility model, its shell can also be a porous frame-shaped hard fixing frame (not shown in the figure) made of metal material or non-metallic material, and the inner layer is made of soft-packaged sealed battery pole group with aluminum-plastic composite film. Also can reduce the weight, processing is simple, safe and reliable.
总之，两种结构的外壳，即硬固定架在外层，软包装在内层，或软包装在外层，软包装在内层，不仅制造方法比较灵活，而且也增加了品种。In short, the outer shell of the two structures, that is, the hard fixer is on the outer layer and the soft package is on the inner layer, or the flexible package is on the outer layer and the soft package is on the inner layer. Not only the manufacturing method is more flexible, but also the variety is increased.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02285476.2U CN2578989Y (en) | 2002-11-15 | 2002-11-15 | Liquid lithium ionic accumulator with flexible package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02285476.2U CN2578989Y (en) | 2002-11-15 | 2002-11-15 | Liquid lithium ionic accumulator with flexible package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578989Y true CN2578989Y (en) | 2003-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02285476.2U Expired - Lifetime CN2578989Y (en) | 2002-11-15 | 2002-11-15 | Liquid lithium ionic accumulator with flexible package |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295811C (en) * | 2004-08-11 | 2007-01-17 | 北京中信国安盟固利新材料技术研究院有限公司 | Lithium ion cell energy pack for electric bicycle |
| CN106463661A (en) * | 2015-02-18 | 2017-02-22 | 罗伯特·博世有限公司 | Battery cell |
| CN117059987A (en) * | 2023-08-04 | 2023-11-14 | 深圳市方厚新能科技有限公司 | A square battery casing, square battery and preparation method thereof |
-
2002
- 2002-11-15 CN CN02285476.2U patent/CN2578989Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295811C (en) * | 2004-08-11 | 2007-01-17 | 北京中信国安盟固利新材料技术研究院有限公司 | Lithium ion cell energy pack for electric bicycle |
| CN106463661A (en) * | 2015-02-18 | 2017-02-22 | 罗伯特·博世有限公司 | Battery cell |
| CN117059987A (en) * | 2023-08-04 | 2023-11-14 | 深圳市方厚新能科技有限公司 | A square battery casing, square battery and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CIIC GUOAN MONGULI NEW ENERGY CO., LTD. Free format text: FORMER OWNER: ZHONGXINGUOAN MENGGULI ELECTRIC SOURCE TECHNOLOGY CO., LTD. Effective date: 20061110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20061110 Address after: 102200 Beijing city Changping District Bai Fu Road 18 Patentee after: CITIC Guoan mengguli New Energy Technology Co., Ltd. Address before: 102200 Beijing city Changping District Bai Fu Road 18 Patentee before: Zhongxinguoan Mengguli Power Supply Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121115 Granted publication date: 20031008 |