Abstract: A Modified Lithium Ion Polymer Battery, comprising multiple positive electrode sheets and multiple negative electrode sheets formed by blending binder with positive or negative electrode powder, respectively, and then coating or rolling with resulting mixture over copper foil or aluminum foil. Binder can be prepared from the following three components: (a) 0.1 wt %˜95 wt % of polyvinylidene fluoride, (b) 0.1 wt %˜90 wt % of amodified polyacrylates, (c) 0.1 wt %˜85 wt % of a modified polyethylene or polydienes, and choosing one or any two from them mixing in a proper ratio. The invention still provides a separation membrane, which is a non-porous polyalkylene oxide film, or a film made by coating a blend of polyalkylene oxide and polyvinylidene fluoride (PVDF), or a micro-porous polypropylene film, or a three-layered composite film of polypropylene, polyethylene and polypropylene.