申请人:Mitsubishi Chemical Corporation
公开号:EP3780226A1
公开(公告)日:2021-02-17
Provided is a nonaqueous electrolyte battery in which not only the generation of a gas during high-temperature storage but also an increase in the battery resistance are inhibited. Also provided is a nonaqueous electrolyte solution containing: a compound represented by the following Formula (A); a cyclic carbonate having an unsaturated carbon-carbon bond; and at least one compound selected from the group consisting of compounds represented by the following Formula (B) or (C). In this nonaqueous electrolyte solution, the content of the cyclic carbonate having an unsaturated carbon-carbon bond with respect to a total amount of the nonaqueous electrolyte solution is in a specific range, and the content of the at least one compound selected from the group consisting of compounds represented by Formula (B) or (C) is in a specific range.
OCN-Q-NCO (C)
本发明提供了一种非水电解质电池,它不仅能抑制高温储存期间气体的产生,还能抑制电池电阻的增加。本发明还提供了一种非水电解质溶液,其中含有:由下式(A)代表的化合物;具有不饱和碳碳键的环状碳酸盐;以及至少一种选自由下式(B)或(C)代表的化合物组成的化合物组。在该非水电解质溶液中,具有不饱和碳-碳键的环状碳酸盐的含量占该非水电解质溶液总量的比例在特定范围内,至少一种选自由式(B)或(C)代表的化合物组成的组的化合物的含量在特定范围内。
OCN-Q-NCO (C)