Based on years of research and development, the institute has had proven special Li-ion battery solutions of fast charging technology, explosion protection technique, low temperature charging and discharging technology, low temperature high-rate discharging technology, etc. Besides, having proprietary intellectual property rights and several national patents, the institute has invented advanced Li-ion battery with 3~5C at -40℃, over 75% discharging capacity retention rate, and the battery can be recharged and re-discharged at -40℃.