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. 20, 2026
Filed:
Jul. 25, 2019
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Tetsuyuki Okano, Osaka, JP;
Hajime Nishino, Nara, JP;
Abstract
A lithium secondary battery including: a positive electrode including a positive electrode current collector, and a positive electrode mixture layer containing a positive electrode active material; a negative electrode including a negative electrode current collector that faces the positive electrode; a separator disposed therebetween; and a non-aqueous electrolyte having lithium ion conductivity, wherein the positive electrode active material includes a composite oxide containing lithium and a metal M other than lithium, the metal M containing at least a transition metal, lithium metal deposits on the negative electrode during charge, and the lithium metal dissolves from the negative electrode during discharge, the positive electrode current collector has a first length in a first direction Dand a second length in a second direction Dintersecting the first direction, the first length being shorter than the second length, a spacer is provided between the positive electrode and the separator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile