A nonaqueous solvent for an electricity storage device according to the present invention comprises fluorine-containing cyclic saturated hydrocarbon having a structure which is represented by general formula (1) below and in which one or two substituents R are introduced into a cyclohexane ring (in general formula (1), R is represented by C
n
X
2n+1
, n is an integer of 1 or greater, at least one of (2n+1) pieces of X's is F, and the other X's are F or H).
根据本发明,用于电力存储装置的非
水溶剂包括含有
氟的环状饱和碳氢化合物,其结构由下面的通式(1)表示,在该通式中,一个或两个取代基R被引入到
环己烷环中(在通式(1)中,R由CnX2n+1表示,n是大于等于1的整数,(2n+1)个X中至少有一个是F,其他的X是F或H)。