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Title:
RECHARGEABLE BUTTON-TYPE SOFT-PACK LITHIUM-ION BATTERY AND PROCESSING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/133555
Kind Code:
A1
Abstract:
Disclosed is a rechargeable button-type soft-pack lithium-ion battery, comprising a shell (1) which is a cylindrical aluminum-plastic composite film structure. The shell (1) is provided with a positive electrode plate (2), a diaphragm (3) and a negative electrode plate (4) therein; the diaphragm (3) being located between the positive electrode plate (2) and the negative electrode plate (4), and the positive electrode plate (2), the diaphragm (3) and the negative electrode plate (4) being rolled into a cylindrical coil core structure and placed inside the shell (1). Electrolyte is further filled between the positive electrode plate (2) and the negative electrode plate (4). The positive electrode plate (2) is further electrically connected to a positive electrode tab (5), and the negative electrode plate (4) is further electrically connected to a negative electrode tab (4). Disclosed is also a processing method for the battery, comprising the steps of molding, assembling, installing and packaging. The battery adopts an aluminum-plastic structure as the shell (1), ensuring more convenient processing and a lighter weight; the battery is sealed by means of a thermoplastic packaging process after assembly, ensuring high installation efficiency and good safety and sealing performance; the positive electrode plate (2), the diaphragm (3) and the negative electrode plate (4) are rolled into the cylindrical coil core structure, ensuring higher production and processing efficiency.

Inventors:
LU CHRIS (CN)
Application Number:
CN2019/000252
Publication Date:
July 02, 2020
Filing Date:
December 20, 2019
Export Citation:
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Assignee:
DONGGUAN MIYEAR BATTERY CO LTD (CN)
International Classes:
H01M10/0587; H01M2/02; H01M10/0525
Foreign References:
CN109768337A2019-05-17
CN106207087A2016-12-07
CN108461806A2018-08-28
CN205657094U2016-10-19
CN108649182A2018-10-12
CN108390027A2018-08-10
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