Patent ID: 7833677
Filing Date: 2010-11-16
Classification: H01M,Y02E

Abstract:
1. A nonaqueous electrolyte battery, comprising a negative electrode and a positive electrode that comprises or can occlude and release lithium, a lithium salt-containing ionic liquid, wherein said ionic liquid comprises a cation represented by formula (1): wherein A an imidazolium structure represented by formula (2): wherein R 1 , R 3 , and R 4 each independently represent a substituent having 8 or less carbon atoms and comprising at least one element selected from the group consisting of carbon, hydrogen, and oxygen, R 2 represents a substituent having 1 or more and 8 or less carbon atoms and comprising at least one element selected from the group consisting of carbon, hydrogen, and oxygen, n is an integer of 2 or more and 10 or less, and m is an integer of 1 or more and 12 or less.