A lithium-ion battery is a secondary rechargeable battery that mainly relies on the movement of lithium ions between the positive and negative electrodes to work. During the charging and discharging process, Li+ intercalates and deintercalates back and forth between the two electrodes: during charging, Li+ is deintercalated from the positive electrode, intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; during discharge, the opposite is true. According to the shape, the common batteries in the new energy vehicle market are divided into three categories: square aluminum shell batteries, soft pack battery and cylindrical battery.

Ranking of domestic soft pack lithium battery manufacturers, have you? In fact, there are many soft-pack lithium battery manufacturers doing well in the market. The huge demand in the soft-pack battery market has stimulated soft-pack lithium battery manufacturers to speed up production expansion. There are three main types of lithium battery cell packaging: cylindrical, square and soft packs. Soft pack lithium battery has become an important choice for power battery technology route due to its advantages of good safety performance, light weight, large capacity and small internal resistance. Let's take a look at which soft pack battery manufacturers are more famous.

LG Chem

The world's leading soft pack lithium battery company, the positive electrode mainly follows the ternary route. The cathode material of LG Chem power battery is mainly ternary NCM, which adopts a laminated soft package design. According to LG Chem's power battery production capacity plan, the company's power battery production capacity will meet the global demand for 50,000 electric vehicles in 2016, and the company's production capacity will meet the demand for 200,000 electric vehicles by 2020. LG Chem's power battery sales have grown steadily, and LG Chem's shipments are expected to increase significantly to around 4GWh this year.

AESC

The power lithium battery adopts a soft pack design, and the cathode material follows the route of lithium manganate. The current mainstream route in the international market is to develop towards high-nickel ternary materials. Although lithium manganate is relatively cheap, it has low energy density and poor cycle performance. Compared with lithium iron phosphate and ternary materials, it has no outstanding advantages. It is because of the choice of lithium manganate as the cathode route that AESC faces the risk of being eliminated from the market.

Guoneng Lithium Battery

The production capacity will reach 11GWh by the end of this year and is expected to reach 25GWh in 2020. The energy density of the battery pack mass produced by Guoneng lithium battery has reached 125wh/kg in 2016, and the energy density of the mass production of ternary cells has reached 200wh/kg. It is expected that by the end of 2017, the single density of Guoneng lithium iron phosphate battery will exceed 180Wh/kg, and the ternary product will exceed 240Wh/kg.

Toopband Battery

Shenzhen Topband Battery Co., Ltd.，established in 2006, is a wholly-owned subsidiary of Shenzhen Topband Co., Ltd. (002139.SZ). We focus on lithium iron phosphate batteries,with independent research and development in cells and BMS. With the ability to integrate the entire industry chain, we are committed to providing customers with one-stop lithium battery solutions and services. Our quality products are widely used in energy storage, low-speed vehicle, small power tools, power banks and other fields.