LITHIUM ION BATTERY SEPARATOR - TRINA STORAGE SOLUTIONS JIANGSU CO LTD

Title:

LITHIUM ION BATTERY SEPARATOR

Document Type and Number:

WIPO Patent Application WO/2023/093789

Kind Code:

A1

Abstract:

The present application relates to a lithium ion battery separator. The lithium ion battery separator comprises a base membrane, and coating layers arranged on one or two sides of the base membrane, wherein there are at least two coating layers on the same side of the base membrane, and the distance between any two adjacent coating layers on the same side is 5-30 mm. By means of the lithium ion battery separator of the present application, the problems of slow electrolyte absorption, uneven infiltration and slow gas discharge of a lithium ion battery can be solved, thereby improving the cycle performance of a lithium ion battery.

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Inventors:

WEI SIWEI (CN)
JIANG ZHIYI (CN)
WANG HONGMING (CN)
WANG QIUSHI (CN)
XU JINYUAN (CN)
LU LIN (CN)

Application Number:

PCT/CN2022/133938

Publication Date:

June 01, 2023

Filing Date:

November 24, 2022

Export Citation:

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Assignee:

TRINA STORAGE SOLUTIONS JIANGSU CO LTD (CN)

International Classes:

H01M50/409

Domestic Patent References:

WO2019034143A1

2019-02-21

Foreign References:

CN105591055A	2016-05-18
JP2013105680A	2013-05-30
CN111244374A	2020-06-05
CN107946525A	2018-04-20

Attorney, Agent or Firm:

SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)

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