Applications of Lithium Ion Batteries

Applications of Lithium Ion Batteries

In recent years, due to the improvement and optimization of materials,Tycorun Lithium Battery use high-safety battery materials and high-stability electrolyte systems, and with the improvement of manufacturing technology, leading lithium battery manufacturers such as Japan and South Korea have been able to master this technology and Production of batteries used in 3C products. The application field of batteries spans from 3C products to vehicles and future hybrid electric vehicles, and its technical goal is to pursue low material cost and high cycle life. The demand for power systems for application vehicles has increased sharply, which has brought new challenges to the development of lithium batteries, especially in terms of high energy density or high power performance. Performance optimization.

Electric vehicles mainly use electricity instead of oil to drive the power system, and are divided into three types: pure electric vehicles, hybrid electric vehicles, and plug-in hybrid electric vehicles in between. A plug-in hybrid electric vehicle operates on the same principle as a hybrid electric vehicle. It uses electricity as the driving power, and traditional gasoline or diesel as the auxiliary engine. When the battery voltage drops, the transmission engine is started and the battery is charged. Plug-in hybrid electric vehicles need to be equipped with large batteries, which can drive longer distances, save more fuel, and reduce greenhouse gas emissions.

The global representative Nissan Leaf electric vehicle products focus on the volume and quality of the battery pack. The lightweight electric vehicle greatly reduces the working quality of the electric vehicle and can solve the problem of “range anxiety”. In 2013, in terms of quality optimization, the quality of Leaf products was reduced by 80 kg, and the cruising range was extended by 10%. The next step of Leaf series products may increase the energy density of the battery pack, so the power lithium battery pack with the same mass and volume can be used. Store more power, which increases range by more than 25%. The American TsslaS series uses 18650 lithium-ion batteries, and provides three different capacity batteries for consumers to choose from, 40kW·h, 60kW·h and 85kW·h, respectively. These three different capacity batteries will provide vehicles with 256km, 370km and 480km. maximum cruising mileage.

my country has issued many policies to support the development of new energy vehicles, and has also invested a lot of financial and material resources in research and development, such as the representative national “863” key project – lithium-ion battery research and development project. At present, my country’s automotive lithium battery industry is developing rapidly, and its production capacity is second only to Japan. BYD, Wanxiang Group, Shenzhen BAK Battery, the joint venture between Tianjin Lishen Battery and American Miles, etc., are paying more and more attention and research to lithium batteries.

Lithium-ion batteries currently produced are small in size and low in power. High-capacity, high-power lithium-ion batteries are still in trial production and trial operation. Lithium-ion batteries, widely used in electric vehicles, remain problematic due to a variety of different performance constraints, including lithium-ion battery safety, cycle life, cost, operating temperature, and material availability. In addition, the immature technology of the battery management system in the battery pack has also become one of the important reasons why lithium-ion batteries have not been widely used in electric vehicles.