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:
Dec. 29, 2015
Filed:
Jan. 19, 2010
Shinya Wakita, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Izaya Okae, Fukushima, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein the positive electrode contains a positive electrode active material having an olivine structure, and the nonaqueous electrolyte contains at least one member of sulfone compounds represented by the following formulae (1) and (2). wherein R1 represents CHX; X represents a halogen; m represents an integer of from 2 to 7; each of n1 and n2 independently represents an integer of from 0 to 2m; R2 represents CHZ; Z represents a halogen; j represents an integer of from 2 to 7; and each of k1 and k2 independently represents an integer of from 0 to 2j.