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:
Sep. 03, 2019
Filed:
Nov. 15, 2017
Murata Manufacturing Co., Ltd., Kyoto, JP;
Shinya Wakita, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Masanori Soma, Fukushima, JP;
Izaya Okae, Fukushima, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A nonaqueous electrolyte secondary battery includes a positive electrode having a positive electrode active material layer provided on a positive electrode collector, a negative electrode having a negative electrode active material layer provided on a negative electrode collector, and a nonaqueous electrolyte. The nonaqueous electrolyte contains at least one member selected from the group consisting of sulfone compounds represented by the following formulae (1) and (2); and an inorganic phosphorus compound represented by the following formula (3) exists on the surface of a positive electrode active material: R1 represents CHX; X represents a halogen; m represents an integer of from 2 to 7; each of nand nindependently represents an integer of from 0 to 2m; R2 represents CHZ; Z represents a halogen; j represents an integer of from 2 to 7; each of kand kindependently represents an integer of from 0 to 2j; each of R3, R4 and R5 independently represents H or OH; and a is 0 or 1.