Invention Grant
- Patent Title: Nonaqueous electrolyte secondary battery
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Application No.: US15813725Application Date: 2017-11-15
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Publication No.: US10403926B2Publication Date: 2019-09-03
- Inventor: Shinya Wakita , Masayuki Ihara , Masanori Soma , Izaya Okae
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: K&L Gates LLP
- Priority: JP2009-046651 20090227
- Main IPC: H01M10/052
- IPC: H01M10/052 ; H01M10/0566 ; H01M10/0567 ; H01M4/02 ; H01M4/36 ; H01M4/58

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 CmH2m-n1Xn2; 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 CjH2j-k1Zk2; Z represents a halogen; j represents an integer of from 2 to 7; each of k1 and k2 independently 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.
Public/Granted literature
- US20180076476A1 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY Public/Granted day:2018-03-15
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