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:
Nov. 05, 2024
Filed:
Dec. 19, 2019
Sanyo Electric Co., Ltd., Daito, JP;
SANYO Electric Co., Ltd., Osaka, JP;
Abstract
A non-aqueous electrolyte secondary battery including a positive electrode core; a positive electrode plate having a positive electrode active material layer formed on the positive electrode core; a negative electrode plate; a flat wound electrode assembly in which the positive electrode plate and the negative electrode plate are wound with a separator therebetween; and a non-aqueous electrolyte, wherein the positive electrode active material is a manganese-containing lithium transition metal composite oxide, the BET specific surface area of the positive electrode active material is 2.0-3.0 m/g, the total surface area of the positive electrode active material contained in the positive electrode active material layer is 70-90 m, and the value of A/B is 0.03-0.09 (μmol/m), where A (μmol) is the total amount of FSOcontained in the non-aqueous electrolyte, and B (m) is the total area of the positive electrode active material contained in the positive electrode active material layer.