Because the volume of lithium batteries is higher than energy and mass than energy, it can be charged and pollution-free, and it has the three major characteristics of the current battery industry development, so it has a rapid growth in developed countries1, green and environmentally friendly batteries have developed rapidly, including lithium-ion batteries, hydrogen and nickel batteries;2, a battery to the battery conversion, which is in line with the sustainable development strategy;3, batteries further develop to small, light, thin direction.