In recent years, the domestic lead battery new products are constantly on the market. Colloidal lead-acid batteries with tubular electrodes have been applied in batches in energy storage and low-speed pure electric vehicles, and their service life and reliability have been greatly improved. The improved AGM lead battery is used in batches in low-speed pure electric vehicles and has been road-tested in a number of light and slightly hybrid hevs. Jiangsu shuangdeng group through independent research and development technology, imported equipment, large-scale production of winding type lead-acid batteries, except in for all kinds of large-scale engineering vehicle, and has set up a number in domestic or joint brand light mix on the HEV applications, models for 6 -.spb - 50 TART/STOP (start-stop technology) micro mixing motor winding type lead-acid batteries, the discharge current is 300 a, discharge of 1.0 s starting life has reached 110000 times, far higher than ordinary AGM battery level of 20000.