The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 13, 2026

Filed:

Apr. 08, 2024
Applicant:

Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;

Inventors:

Feng Liu, Ningde, CN;

Yulei Fan, Ningde, CN;

Wei Zhong, Ningde, CN;

Xiaoming Ge, Ningde, CN;

Chuying Ouyang, Ningde, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/446 (2021.01); H01M 50/403 (2021.01); H01M 50/414 (2021.01); H01M 50/434 (2021.01); H01M 50/443 (2021.01); H01M 50/491 (2021.01);
U.S. Cl.
CPC ...
H01M 50/446 (2021.01); H01M 50/403 (2021.01); H01M 50/414 (2021.01); H01M 50/434 (2021.01); H01M 50/443 (2021.01); H01M 50/491 (2021.01);
Abstract

The present application relates to a separator, comprising: two layers of substrate and a coating formed between the two layers of substrate, wherein the coating contains inorganic particles, and 30 wt % to 70 wt % of the inorganic particles have a surface coated with a coating layer, and 70 wt % to 30 wt % of the inorganic particles have an uncoated surface, based on the total weight of the inorganic particle. The separator may realize a high mechanical strength, a high wettability, and a good interfacial bonding, and may also effectively inhibit the growth of lithium dendrites, and thus improve the cycling performance of a secondary battery.


Find Patent Forward Citations

Liu, Feng. (2026). Separator, preparation method therefor, and related secondary battery, battery module, battery pack, and power consuming device thereof (U.S. Patent No. 12763430). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12763430

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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