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:
Mar. 31, 2026

Filed:

Dec. 10, 2020
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Kohei Saito, Osaka Fu, JP;

Takayuki Nakatsutsumi, Osaka Fu, JP;

Atsushi Fukui, Hyogo Ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 6/16 (2006.01); H01M 4/06 (2006.01); H01M 4/38 (2006.01); H01M 4/505 (2010.01); H01M 4/66 (2006.01); H01M 6/14 (2006.01);
U.S. Cl.
CPC ...
H01M 6/168 (2013.01); H01M 4/06 (2013.01); H01M 4/382 (2013.01); H01M 4/505 (2013.01); H01M 4/669 (2013.01); H01M 6/14 (2013.01); H01M 2300/0025 (2013.01);
Abstract

A lithium primary battery includes a positive electrode, a negative electrode, and a liquid non-aqueous electrolyte. The positive electrode contains a positive electrode material mixture including LixMnOwhere 0≤x≤0.05. The negative electrode contains at least one of metal lithium and a lithium alloy. The liquid non-aqueous electrolyte contains a cyclic imide component and an organic silyl borate component. The concentration of the cyclic imide component in the liquid non-aqueous electrolyte is 1 mass % or less, the concentration of the organic silyl borate component in the liquid non-aqueous electrolyte is 5.5 mass % or less, and the mass ratio of the cyclic imide component to the organic silyl borate component contained in the liquid non-aqueous electrolyte is 0.02 or more and 10 or less.


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