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.
Patent No.:
Date of Patent:
Sep. 29, 2026
Filed:
Oct. 11, 2022
Ningde Amperex Technology Limited, Ningde City, CN;
Jia Tang, Ningde City, CN;
Lihong He, Ningde City, CN;
Pengyang Feng, Ningde City, CN;
Yuansen Xie, Ningde City, CN;
NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde City, CN;
Abstract
A negative electrode active material having a specific aspect ratio and sphericity in a cumulative particle volume distribution. When tested by using a dynamic particle image analyzer, when a cumulative particle volume distribution of the negative electrode active material is 10%, an aspect ratio ARof the negative electrode active material satisfies 0.4≤AR≤0.55, and a sphericity Sof the negative electrode active material satisfies 0.48≤S≤0.60. The negative electrode active material improves rate performance, dynamics performance, and a deformation problem of the electrochemical apparatus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile