Title:
ELECTRODE ASSEMBLY AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/040862
Kind Code:
A1
Abstract:
The present application provides an electrode assembly and an application thereof. The electrode assembly of the present application comprises a positive electrode plate, a negative electrode plate, and a diaphragm. The diaphragm is disposed between the positive electrode plate and the negative electrode plate. The ratio of the elongation of the diaphragm in the length direction to the thickness of the positive electrode plate is (0.9-3.7): 1; and the ratio of the elongation of the diaphragm in the width direction to the thickness of the positive electrode plate is (0.9-3.7): 1. According to the electrode assembly of the present application, by matching the elongation of the diaphragm in the electrode assembly with the thickness of the positive electrode plate, when the electrode assembly is subjected to mechanical abuse, the contact between a positive electrode current collector and a negative electrode active layer can be reduced, and the generation of short circuit points is reduced, such that the probability of thermal runaway occurrence is reduced, and a lithium-ion battery may have relatively high safety performance.
Inventors:
CUI HONGYU (CN)
HE FEI (CN)
LI SULI (CN)
LI JUNYI (CN)
XU YANMING (CN)
HE FEI (CN)
LI SULI (CN)
LI JUNYI (CN)
XU YANMING (CN)
Application Number:
PCT/CN2022/118591
Publication Date:
March 23, 2023
Filing Date:
September 14, 2022
Export Citation:
Assignee:
ZHUHAI COSMX BATTERY CO LTD (CN)
International Classes:
H01M50/417; H01M10/0525; H01M50/449
Domestic Patent References:
| WO2022001987A1 | 2022-01-06 |
Foreign References:
| CN113809475A | 2021-12-17 | |||
| CN111416086A | 2020-07-14 | |||
| JP2012182084A | 2012-09-20 | |||
| JP2015053237A | 2015-03-19 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
Download PDF: