However, a bottleneck in the development of lithium batteries currently faces is: To improve the capacity charge is bound to sacrifice speed and cycle life, and to enhance the charging speed and difficult to maintain a high capacity. Future replacement of the battery, on the one hand the need to improve safety performance, such as the study of the solid-state semi-solid electrolyte, the other car battery manufacturer, the need to accelerate the development of high capacity cathode material, to achieve a breakthrough in lithium battery energy density. In short, the battery's positive and negative, and electrolyte materials require coordinated development of automotive batteries in hand to join, so as to have greater progress in shape, capacity and other aspects. These three types of battery with the highest energy density of lithium cobalt oxide, but it is also the most unstable at high temperatures; lithium iron phosphate, the most stable, but the lowest energy density. Lithium-ion battery technology, has been quiet for 20 years without major technical innovations. A study of battery power, experts say, the biggest obstacle is that the power density of lithium-ion battery car battery limited Which is good, it can not quickly receive large amounts of energy or release. Tesla uses an upgraded version of Roadster3.0 had improved lithium battery, Tesla did not confirm whether or not to join the graphene. However, its performance has greatly improved, I am afraid only of graphene can do. The new and improved capacity 18650 lithium battery greatly increase the number of battery packs 6831 did not increase, but the total capacity of the battery pack from 53kWh increased to 70kWh. Car battery distribution _ _ Wei Li Po car battery car battery from Tuen Mun Shenzhen Wei Lai Po Battery Limited. Shenzhen Wei Lai Po Battery Co., Ltd. (www.weilipo.com) Guangdong Shenzhen, battery leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Wei Li Po car battery in leadership with the staff warmly welcome all inquiries negotiations to create Wei Lai Po car battery a better future.