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. 24, 2023
Filed:
Apr. 24, 2018
Nec Corporation, Tokyo, JP;
Makihiro Otohata, Tokyo, JP;
Noboru Yoshida, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A purpose of the present invention is to provide a lithium ion secondary battery in which an increase in internal resistance is suppressed and a halogenated cyclic anhydride is used as an electrolyte additive. The lithium ion secondary battery according to the present invention comprises a positive electrode and an electrolyte solution, wherein a porous layer comprising an insulating filler is formed on the positive electrode, and the electrolyte solution comprises 0.005 to 10 weight % of a halogenated cyclic acid anhydride.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile