Advantage of a soft bag lithium ① Security: aluminum flexible packaging used in the structure, which greatly reduces the battery explosion, fire risk; ② Small: As a special shell material used, the battery compact design, with the capacity situation , its volume can be smaller than the metal shell battery 15%; ③ weight: weight than equivalent capacity specifications of the steel battery light about 40%; ④ high capacity: metal shell battery with the same volume as compared to approximately 10% higher capacity ; ⑤ larger discharge current and higher discharge platform: a substantially vacuum state inside the battery, the positive electrode, the separator and the closer contact between the anode, to provide greater and higher discharge current discharge platform for special Use battery discharge capacity even to 3C above; ⑥ accommodate a wide temperature range: -40 ~ 75 ℃ in environments; ⑦ self-discharge rate: The annual self-discharge rate ≤ 2%; ⑧ Dimensions designed to be flexible: flexible battery case punching arbitrary, its dimensions designed to be flexible, better able to meet customer needs. CP224147, CP752425.CP702440, CP502440, CP505050, CP952434.