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.:

US 12785098 B1

Date of Patent:

Nov. 03, 2026

Filed:

Mar. 29, 2022

Lithium iron phosphate battery

Applicant:

Shenzhen Capchem Technology Co., Ltd., Shenzhen, CN;

Inventors:

Yunxian Qian, Shenzhen, CN;

Shiguang Hu, Shenzhen, CN;

Xiaoxia Xiang, Shenzhen, CN;

Hongmei Li, Shenzhen, CN;

Chaowei Cao, Shenzhen, CN;

Yonghong Deng, Shenzhen, CN;

Assignee:

SHENZHEN CAPCHEM TECHNOLOGY CO., LTD., Shenzhen, CN;

Attorney:

Primary Examiner:

Scott J Chmielecki

Int. Cl.

CPC ...

H01M 4/58 (2010.01); H01M 4/02 (2006.01); H01M 10/052 (2010.01); H01M 10/0567 (2010.01);

U.S. Cl.

CPC ...

H01M 4/5825 (2013.01); H01M 10/052 (2013.01); H01M 10/0567 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0025 (2013.01);

Abstract

Provided is a lithium iron phosphate battery, comprising a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the positive electrode comprises a positive electrode material layer with a compacted density of 2.3-2.8g/cc, and the positive electrode material layer comprises a positive electrode active material, the positive electrode active material comprises LiFePO; the non-aqueous electrolyte comprises a solvent, an electrolyte salt, vinylene carbonate and a compound represented by Structural formula 1; an addition amount of the compound represented by Structural formula 1 is 0.01-5% based on a total mass of the non-aqueous electrolyte being 100%. The lithium iron phosphate battery provided by the application adopts the combination of vinylene carbonate and the compound represented by Structural formula 1, which can inhibit the generation of lithium dendrites and dissolution of Fe, and ultimately improve the high-temperature and safety performance of the High-compacted-density lithium iron phosphate battery.A-D-B-E-C Structural formula

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Qian, Yunxian. (2026). Lithium iron phosphate battery (U.S. Patent No. 12785098). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12785098

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