| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithium battery by mixing a pigment, a copolymer and a plasticizer in specified ratios, and preparing the melted body of the mixture followed by extrusion molding. SOLUTION: This method comprises preparing the melted body of a mixture containing, in a ratio of 1-100 wt.%, a mixture containing 1-95 wt.% of a pigment containing at least one of an electrochemically inactive solid having a primary grain size of 5 nm-20 μm, a compound capable of releasing Li ion in charging, and a compound capable of receiving Li ion in charging; 5-99 wt.% of at least one copolymer of vinylidene fluoride and 8-25 wt.% of hexafluoroproplylene; and 1-200 wt.%, to the total amount of the pigment and the copolymer, of a plasticizer containing two or more of seven kinds such as dibutyl phthalate, dimethyl phthalate and the like, and subjecting the melted body to extruding process. According to this method, a molded body, particularly, a film-like molded body can be produced. |
