| 摘要 |
PROBLEM TO BE SOLVED: To prevent reaction/decomposition of a plasticizer at charging time, and to improve charge/discharge efficiency of a battery by including the plasticizer and a matrix high polymer by dispersing the plasticizer, and including a specific cabonic ester compound in this plasticizer. SOLUTION: A carbonic ester compound has a structure of the formula. In the formula, X1 and X2 represent halogen and Hj, and R1 and R2 represent halogenated alkyl CnXa2 n-m+s Xbm and Hj, and Xa represents halogen, and Xb represents halogen and H. Here, X1 , X2 , R1 and R2 are not wholly halogen or H. R1 and R2 of the formula are suitable to be halogenated alkyl having a carbon group (n=1 to 3) such as CF3 , CF2 CF3 and CHF2 . The content of a carbonic ester compound to a plasticizer is desirably 10 to 80 wt.%. A gel-like electrolyte desirably contains an improved plasticizer by 30 to 85 wt%. A matrix high polymer is suitable to be a fluorine high polymer, particularly, polyvinylidene fluoride. |
