Evolution of Li batteries /986 Li metal Li ion Li-MnO2 secondary battery secondary battery New LIB 70 1972 1990 Primary Li dendrites Portable HEVs,EVs (1989) electronics Coin cells 3V Short circuit 4000 mAh 1200 mAh b Step1 Step2 Li dendrites LITHIUM BATTERY Cracks CR2032 3V SEl on Li Expansion Li plating Further plating 新能源Ladr 1414 Li-MnO2 Primary 70’ Li metal secondary battery Li dendrites （1989） 1972 Li ion secondary battery Portable electronics 1990 New LIB HEVs, EVs ？ Coin cells 3 V 1200 mAh Short circuit 4000 mAh Evolution of Li batteries