At present, lithium polymer battery is advanced rechargeable secondary battery. With cathode materia l- LiCoO2, LiMn2O ,Li(NiCoMn)O2, and anode material - C, lithium polymer battery has many merits: Good safety performance, high energy density, excellent charge retention, long cycle life, low self-discharge rate, low resistance, no memory effect and non-pollution.Lithium polymer battery is main applied for various customer electronic products, such as phone, smart security products, POS machine, GPS tracker and so on.