The LiFePO4 lithium ion battery is a new generation in rechargeable batteries for the following advantages: 1)High theoretical capacity and excellent cycle life; 2)Inexpengsive components and environmentally friendly; 3)Higher instinsic safety; Applications:LiFePO4 could be used in the comsumer mobile electronics market,especially has the trends to be applied in Hybrid Electric Vehicles,Electric Bikes and Scooters etc.