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:
Apr. 19, 2022
Filed:
Nov. 26, 2019
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Hiroto Asano, Nisshin, JP;
Shimpei Kondo, Nagoya, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0567 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0567 (2013.01); H01M 10/0525 (2013.01);
Abstract
Provided is an electrolyte solution for lithium secondary batteries that allows lowering the resistance of a lithium secondary battery, and suppressing characteristic degradation of the lithium secondary battery under high temperature. The electrolyte solution for lithium secondary batteries disclosed herein contains 0.05 mass % to 2.0 mass % of a compound represented by Formula (1) below. (In the formula, Mrepresents a quaternary ammonium cation or a nitrogen-containing heteroaromatic ring cation, and Rrepresents a C-Calkyl group in which an ether oxygen is optionally inserted.)