CN101438451A - 铝塑复合膜液态锂离子蓄电池 - Google Patents
铝塑复合膜液态锂离子蓄电池 Download PDFInfo
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- 239000004033 plastic Substances 0.000 title claims abstract description 27
- 229920003023 plastic Polymers 0.000 title claims abstract description 27
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims description 25
- 229910052782 aluminium Inorganic materials 0.000 title claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 16
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 4
- -1 poly ethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910015645 LiMn Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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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
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0486—Frames for plates or membranes
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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
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/121—Organic material
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
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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
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Abstract
一种铝塑复合膜液态锂离子蓄电池，包括正极(1)、负极(2)和隔膜(3)组成的极组、电解液和铝塑复合膜(4)，其中极组外面包有模架(5)，该模架是以成型的极组为胎具通过注塑成型而成。
Description
技术领域
发明涉及一种蓄电池，更具体而言，涉及一种铝塑复合膜液态锂离子蓄电池。
背景技术
一般铝塑复合膜液态锂离子蓄电池都是在极组成型后置于铝塑复合膜的袋子中，注液后通过真空热封口工艺制成铝塑复合膜液态锂离子蓄电池，其缺点是蓄电池在充放电过程中由于电极材料的晶格变化，电池厚度同时发生变化，使得正负极之间的距离变化，电池性能下降很快。虽然电池外部有一个大气压强在减缓这种变化，但力量过小，尤其是蓄电池内如果产生少量气体，那么这个压力就会消失。荷兰菲利浦公司用在极片之间加上聚合物铆钉的办法解决，而日本索尼公司则通过在极片之间加胶，使极片粘在一起的方法解决上述问题。这都存在电池制作工艺复杂、成品率低、电池输出功率小、成本高等缺点。已有专利用在极组外面加硬固定架的方法解决，但金属硬固定架在加工和使用过程中易刺破铝塑复合膜，而且极组在放入金属或有机物硬固定架时易发生由于摩擦使得极组发生破损，电池成品率降低。
发明内容
本发明的目的是为了克服上述已有技术的缺点和不足，而提供一种铝塑复合膜液态锂离子蓄电池，从而提高了产品性能、易于机械化连续生产、成品率高。
本发明的目的是通过下面技术方案实现的：
铝塑复合膜液态锂离子蓄电池，包含正极(1)、负极(2)和隔膜(3)组成的极组、电解液和铝塑复合膜(4)，其特征在于极组外面包有模架(5)，该模架是以极组为胎具通过注塑成型而成；所述的模架为多组分有机物如改性聚丙烯或改性聚乙烯通过注塑成型，包覆在极组表面；所述的模架注塑成型温度优选在40-80℃之间。
由于采用以上的技术方案，使本发明技术与原有技术相比，具有蓄电池性能稳定、易于机械化连续生产、成品率高的优点和效果。
附图说明
图1为本发明铝塑复合膜液态锂离子蓄电池的结构示意图。
图2为本发明铝塑复合膜液态锂离子蓄电池0.5C充放电循环过程中放电容量与循环次数的关系。
图3为对比铝塑复合膜液态锂离子蓄电池0.5C充放电循环过程中放电容量与循环次数的关系。
具体实施方式
一种铝塑复合膜液态锂离子蓄电池，如图1所示，它包括正极(1)、负极(2)和隔膜(3)组成的极组、电解液和铝塑复合膜(4)。极组外面包有模架(5)，起到固定蓄电池极组的作用，使蓄电池在充放电过程中正负极间的距离保持在允许范围内，电池变形小，提高电池性能，即使在蓄电池内产生少量气体，蓄电池性能也会得到很好的保持。模架通过注塑成型，胎具为蓄电池极组，成型脱模后，模架与极组成为一体，装入铝塑复合膜中，注入电解液后真空热塑成型制成铝塑复合膜锂离子蓄电池，这样就能够避免现有专利方法中由于蓄电池极组在放入金属或有机物硬固定架时易由于摩擦使得极组破损，而且避免现有专利中由于硬固定架和蓄电池极组的误差造成的不匹配，造成蓄电池成品率降低的问题，模架成型温度优选为40-80℃，这样就避免在模架成型过程中极组中的隔膜发生变形，从而发生极组短路或隔膜结构的改变。
实施例1
制作1882130(18mm厚×82mm宽×130mm高)电池，其中正极活性物质为LiMn2O4，负极活性物质为石墨，隔膜材料为PE，电解液主盐为LiPF6(1M)，溶剂为EC、EMC和DMC，其体积比为1:1:1。将极组放入模具中，再将模具加热到60℃，在模具中注入改性聚乙烯，迅速冷却到35℃，脱模，将带有模架的极组装入铝塑复合膜中，注入电解液密封后用0.2C电流进行3次充放电，充电截止电压为4.3V，放电截止电压为3.0V。用0.5C电流做充放电循环，充电截止电压为4.3V，放电截止电压为3.0V，电池放电容量和循环次数的关系见图2。电池极组外未带有上述模架的电池即对比铝塑复合膜液态锂离子蓄电池用0.5C电流做充放电，充电截止电压为4.3V，放电截止电压为3.0V，电池放电容量与循环次数的关系见图3。
由图2和图3可见，电池充放电循环300次时，对比铝塑复合膜液态锂离子蓄电池的容量保持率为83％，而本发明铝塑复合膜液态锂离子蓄电池的容量保持率为92％，500次循环时容量保持率为90％。因此，本发明铝塑复合膜液态锂离子蓄电池的使用稳定性即循环寿命有了显著提高，。
总之，通过上述方法制成的本发明的铝塑复合膜锂离子蓄电池相对于现有技术具有性能稳定、易于机械化连续生产和成品率高的优点。
Claims (4)
1.一种铝塑复合膜液态锂离子蓄电池，包括正极(1)、负极(2)和隔膜(3)组成的极组、电解液和铝塑复合膜(4)，其特征在于极组外面包有模架(5)，该模架是以极组为胎具通过注塑成型而成。
2.根据权利要求书1所述的蓄电池，其特征在于该模架为以极组为胎具通过将多组分有机物注塑成型而成。
3.根据权利要求书2所述的蓄电池，其特征在于所述多组分有机物为改性聚丙烯或改性聚乙烯。
4.根据权利要求书1所述的蓄电池，其特征在于所述模架注塑成型温度在40-80℃之间。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2006/000702 WO2007118357A1 (en) | 2006-04-17 | 2006-04-17 | Liquid state lithium ion battery with aluminum-plastic complex film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101438451A true CN101438451A (zh) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800545420A Pending CN101438451A (zh) | 2006-04-17 | 2006-04-17 | 铝塑复合膜液态锂离子蓄电池 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090111014A1 (zh) |
| EP (1) | EP2015388A4 (zh) |
| JP (1) | JP2009533832A (zh) |
| KR (1) | KR101017807B1 (zh) |
| CN (1) | CN101438451A (zh) |
| WO (1) | WO2007118357A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497310A (zh) * | 2020-04-02 | 2021-10-12 | 丰田自动车株式会社 | 层叠型蓄电器件及其短路检查方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102444038B1 (ko) | 2014-08-07 | 2022-09-19 | 원 미디어, 엘엘씨 | 유연한 직교 주파수 분할 멀티플렉싱 물리 전송 데이터 프레임의 동적 구성 방법 |
| CN111391284B (zh) * | 2020-04-08 | 2021-12-17 | 安徽风驰新能源科技股份有限公司 | 一种软包装锂电池铝塑膜整形夹具 |
| CN113281369B (zh) * | 2021-04-23 | 2022-07-26 | 浙江超威创元实业有限公司 | 一种铝塑膜可靠性检验方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2984696B2 (ja) * | 1988-07-11 | 1999-11-29 | 株式会社リコー | 薄型電池 |
| CA2118866A1 (en) * | 1993-06-21 | 1994-12-22 | Clarence A. Meadows | Bipolar battery housing and method |
| JPH10247480A (ja) * | 1997-02-28 | 1998-09-14 | Yuasa Corp | モールド電池とその製造方法 |
| US5895731A (en) * | 1997-05-15 | 1999-04-20 | Nelson E. Smith | Thin-film lithium battery and process |
| WO2000059063A1 (en) * | 1999-03-26 | 2000-10-05 | Matsushita Electric Industrial Co., Ltd. | Laminate sheath type battery |
| SE520007C8 (sv) * | 2001-09-19 | 2006-05-16 | Nilar Europ Ab | Ett bipolärt batteri, en metod för tillverkning av ett bipolärt batteri och bilplåtsammansättning |
| JP2003157810A (ja) * | 2001-11-22 | 2003-05-30 | Tdk Corp | 電 池 |
| JP2004055441A (ja) * | 2002-07-23 | 2004-02-19 | Nissan Motor Co Ltd | ラミネートフィルム外装電池、電池群、組電池、および組電池モジュール |
| CN1411081A (zh) * | 2002-11-15 | 2003-04-16 | 中信国安盟固利电源技术有限公司 | 软包装液态锂离子蓄电池 |
| JP2004199994A (ja) * | 2002-12-18 | 2004-07-15 | Toshiba Corp | 電池 |
| CN100355144C (zh) * | 2005-05-16 | 2007-12-12 | 钟馨稼 | 铝塑软壳之大容量锂离子电池 |
-
2006
- 2006-04-17 KR KR1020087027871A patent/KR101017807B1/ko not_active IP Right Cessation
- 2006-04-17 WO PCT/CN2006/000702 patent/WO2007118357A1/zh active Application Filing
- 2006-04-17 EP EP06722351A patent/EP2015388A4/en not_active Withdrawn
- 2006-04-17 US US12/297,487 patent/US20090111014A1/en not_active Abandoned
- 2006-04-17 JP JP2009505699A patent/JP2009533832A/ja active Pending
- 2006-04-17 CN CNA2006800545420A patent/CN101438451A/zh active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497310A (zh) * | 2020-04-02 | 2021-10-12 | 丰田自动车株式会社 | 层叠型蓄电器件及其短路检查方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2015388A4 (en) | 2011-06-29 |
| US20090111014A1 (en) | 2009-04-30 |
| WO2007118357A1 (en) | 2007-10-25 |
| EP2015388A1 (en) | 2009-01-14 |
| KR20080110678A (ko) | 2008-12-18 |
| KR101017807B1 (ko) | 2011-02-28 |
| JP2009533832A (ja) | 2009-09-17 |
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