Abstract: A modified lithium ion polymer battery, comprising a positive electrode sheet and a negative electrode sheet, formed by blending a binder with positive electrode powder and coating the resulting blend on a copper foil or an aluminum foil used as the collector, wherein said 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 a modified polyacrylates; and (c) 0.