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:
Jan. 03, 2023
Filed:
Nov. 26, 2019
Teijin Limited, Osaka, JP;
Kazuki Yachi, Toyko, JP;
Shinya Komura, Iwakuni, JP;
Asami Kanematsu, Iwakuni, JP;
Takahiro Daido, Tokyo, JP;
TEIJIN LIMITED, Osaka, JP;
Abstract
The purpose of the present invention is to provide an electrode active material layer exhibiting excellent mechanical strength. This electrode material for a non-aqueous electrolyte secondary battery includes at least an electrode active material, a carbon-based conductive auxiliary agent, and a binder. The carbon-based conductive auxiliary agent has a linear structure, and includes ultra-fine fibrous carbon having an average fibre diameter of more than 200 nm but not more than 900 nm. The electrode material configures an electrode active material layer in which the maximum tensile strength (σ) in a planar direction and the tensile strength (σ) in an in-plane direction orthogonal to the maximum tensile strength (σ) satisfy relational expression (a), namely σ/σ≤1.6.