Title:
ELECTROLYTE ADDITIVE, ELECTROLYTE, LITHIUM ION SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2016192262
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lithium ion secondary battery operating at high voltage, while suppressing degradation of cycle life, and increase in the resistance during the cycle time, and to provide an electrolyte additive for nonaqueous power storage device, capable of giving such a lithium ion secondary battery, and an electrolyte for a nonaqueous power storage device.SOLUTION: An electrolyte additive for nonaqueous power storage device contains a compound (A) containing a structural unit represented by formula (1), where the average number of phosphorus atoms contained in one molecule is 5-20, and the average ratio of mol number of trisubstituted silyl group is 1-1.4. An electrolyte for nonaqueous power storage device containing the electrolyte additive for nonaqueous power storage device, and a lithium ion secondary battery including the electrolyte for nonaqueous power storage device are also provided.SELECTED DRAWING: Figure 1
Inventors:
HAMAZAKI SHINYA
OZAKI FUMIAKI
TAKAHASHI TAKAKO
OZAKI FUMIAKI
TAKAHASHI TAKAKO
Application Number:
JP2015070363A
Publication Date:
November 10, 2016
Filing Date:
March 30, 2015
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
H01M10/0567; H01M4/505; H01M4/525; H01M4/58; H01M10/052; H01M10/0569
Attorney, Agent or Firm:
Kenji Sugimura
Kazuyuki Tomita
Koichiro God
Kazuyuki Tomita
Koichiro God