The advantages of lithium battery and copper foil in power lithium batteries ①Prominate lithium -ion battery ratio energy. The estimated data shows that the weight foil with a pore rate of 17%at the same specifications decreases by 17%of the weight of the pore rate, which helps the power cells lightweight; ② Effectively improve the performance of lithium ion battery. The lithium ion battery of confession foil, the migration of lithium ions spreads to the extreme ear end through the two -dimensional direction