Title:
リチウムイオン二次電池用電解質
Document Type and Number:
Japanese Patent JP6739941
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an electrolyte for a Li ion secondary battery, by which superior battery characteristics including cycle and rate characteristics can be achieved.SOLUTION: The above purpose is achieved by an electrolyte for a Li ion secondary battery, which comprises a solvation ionic liquid containing methyl monoglyme (G1) and methyl diglyme (G2), and a Li salt. The ratio of a total mole number of oxygen atoms that the G1 and G2 include vs. the mole number of Li in the Li salt (i.e. a total mole number of oxygen atoms included in the G1 and G2 to that of Li in the Li salt) is 3.0 or more and less than 4.0. The mixing mole ratio of the G1 and G2 (i.e. G1 mole number/G2 mole number) is more than 1/4 and less than 3/2.SELECTED DRAWING: None
Inventors:
Toshihiro Takekawa
Masayoshi Watanabe
Masayoshi Watanabe
Application Number:
JP2016017397A
Publication Date:
August 12, 2020
Filing Date:
February 01, 2016
Export Citation:
Assignee:
Nissan Motor Co., Ltd
National University Corporation Yokohama National University
National University Corporation Yokohama National University
International Classes:
H01M10/0568; H01M4/38; H01M10/052; H01M10/0569
Domestic Patent References:
| JP2015533020A | ||||
| JP4047677A |
Foreign References:
| WO2012086602A1 | ||||
| US20140272601 |
Other References:
Ce Zhang Ce Zhang et al.,リチウム-硫黄電池用LiTFSA-グライム(GIとG2)塩錯体非水系電解液 Nonaqueous electrolyte based on LiTFSA and Glyme(GlandG2) for Li-S battery,電気化学会講演要旨集 創立80周年記念大会,公益社団法人電気化学会,2014年 3月29日,p.482
Attorney, Agent or Firm:
Hatta International Patent Corporation