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1. (WO2019024873) SOFT PACK LITHIUM ION BATTERY AND MANUFACTURING METHOD THEREFOR
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Pub. No.: WO/2019/024873 International Application No.: PCT/CN2018/098068
Publication Date: 07.02.2019 International Filing Date: 01.08.2018
IPC:
H01M 10/0587 (2010.01) ,H01M 10/0525 (2010.01) ,H01M 2/20 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
058
Construction or manufacture
0587
of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
052
Li-accumulators
0525
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2
Constructional details, or processes of manufacture, of the non-active parts
20
Current-conducting connections for cells
Applicants:
格力电器(武汉)有限公司 GREE ELECTRIC APPLIANCES (WUHAN) CO., LTD [CN/CN]; 中国湖北省武汉市 经济技术开发区东风大道888号 No.888 Dongfeng Avenue, Economic&Technology Development Zone Wuhan, Hubei 430056, CN
珠海格力电器股份有限公司 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI [CN/CN]; 中国广东省珠海市 前山金鸡西路 West Jinji Road Qianshan Zhuhai, Guangdong 519070, CN
Inventors:
钟宽 ZHONG, Kuan; CN
陈宝荣 CHEN, Baorong; CN
吉纯 JI, Chun; CN
曾庆苑 ZENG, Qingyuan; CN
李影 LI, Ying; CN
Agent:
北京康信知识产权代理有限责任公司 KANGXIN PARTNERS, P. C.; 中国北京市 海淀区知春路甲48号盈都大厦A座16层 Floor 16, Tower A, Indo Building A48 Zhichun Road, Haidian District Beijing 100098, CN
Priority Data:
201710647960.001.08.2017CN
Title (EN) SOFT PACK LITHIUM ION BATTERY AND MANUFACTURING METHOD THEREFOR
(FR) BATTERIE AU LITHIUM-ION À BLOC SOUPLE ET PROCÉDÉ DE FABRICATION ASSOCIÉ
(ZH) 一种软包锂离子电池及其制造方法
Abstract:
(EN) The invention relates to a soft pack lithium ion battery, comprising a cell assembly and a soft pack shell. The cell assembly comprises a plurality of single cell bodies which are connected in parallel. Each single cell body is a coiled-type cell body. The thickness of the cell assembly is greater than 1 cm. The coiled-type cell body is higher in production efficiency and lower in production costs. Due to the structure that the single cell bodies are stacked in parallel, a problem of high internal resistance of the coiled-type cell body can be avoided. The structure also solves a problem of poor flatness frequently appearing in a charge/discharge process of a thick coiled cell structure in later period. The thickness of the cell assembly is greater than 1 cm when the single cell bodies are connected in parallel, so that the cell assembly is higher in capacity. The soft pack lithium ion battery is high in production efficiency and low in production costs, has high energy density and large capacity, and is improved in large-current charge/discharge performance. Also disclosed is a manufacturing method for the soft pack lithium ion battery.
(FR) L'invention concerne une batterie au lithium-ion à bloc souple, comprenant un ensemble de cellules et une enveloppe formant bloc souple. L'ensemble de cellules comprend une pluralité de corps de cellules uniques qui sont connectés en parallèle. Chaque corps de cellule unique est un corps de cellule de type spiralé. L'épaisseur de l'ensemble de cellules est supérieure ou égale à 1 cm. Le corps de cellule de type spiralé est plus avantageux en terme de rendement de production et plus rentable en terme de coûts de production. La structure selon laquelle les corps de cellules uniques sont assemblés en parallèle permet d'éviter un problème de résistance interne élevée du corps de cellule de type spiralé. La structure résout également un problème de mauvaise planéité apparaissant fréquemment dans un processus de charge/décharge d'une structure de cellule spiralée épaisse sur une période ultérieure. L'épaisseur de l'ensemble de cellules est supérieure à 1 cm lorsque les corps de cellules uniques sont connectés en parallèle, de sorte que l'ensemble de cellules a une capacité supérieure. La batterie au lithium-ion à bloc souple a un haut rendement et de faibles coûts de production, a une densité d'énergie élevée et une grande capacité, et a une performance de charge/décharge de courant de forte intensité améliorée. L'invention concerne également un procédé de fabrication de la batterie au lithium-ion à bloc souple.
(ZH) 本发明涉及一种软包锂离子电池,包括电芯总成和软包外壳,所述电芯总成包括多个相互并联的电芯单体,且所述电芯单体为卷绕式电芯单体,所述电芯总成的厚度大于1cm。卷绕式的电芯单体其生产效率更高,生产成本也更低,多个电芯单体并联方式层叠在一起的结构可以避免卷绕式结构电芯内阻较高的问题,还可以解决厚卷芯结构在后期充放电过程总出现的平整性较差的问题;多个电芯单体并联后所形成的电芯总成厚度大于1cm,这使得电芯总成具有更大的容量,因此该软包锂离子电池不仅生产效率高、生产成本低,而且还具有能量密度高、电池容量大的特点,并且还可以提高电池大电流充放电性能。本发明还公开了一种软包锂离子电池的制造方法。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)