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On June 18, 2021, LG New Energy Asia Marketing General Manager revealed at the 2021 China Automotive Forum that LG New Energy is developing all-solid-state batteries and is expected to achieve mass production in 2026. In addition to LG new Energy, Ningde Times, BYD, Samsung SDI, South Korea SKI, Panasonic and other global lithium battery giants are laying out solid-state batteries. The solid-state batteries that the global lithium battery giants are laying out are the development direction of lithium batteries in the future.

At present, the solid-state battery industry is still in the early stage, and there are few mass-produced solid-state battery products, and the output of market-oriented products is low. At present, global enterprises have begun to increase the research layout of solid-state lithium batteries, coupled with the promotion of national policies, the industrialization process of solid-state lithium batteries is expected to accelerate.

1, the global lithium battery giant layout of solid-state batteries

On June 18, 2021, LG New Energy Asia Marketing General Manager revealed at the 2021 China Automotive Forum that LG New Energy is developing all-solid-state batteries and is expected to achieve mass production in 2026. In addition to LG new Energy, Ningde Times, BYD, Samsung SDI, South Korea SKI, Panasonic and other global lithium battery giants are laying out solid-state batteries.

2, solid-state batteries are the future development direction of lithium batteries

What is the solid-state battery that the global lithium battery giants are laying out? Solid state battery refers to the use of solid electrolyte lithium-ion battery, which is still essentially lithium battery, only the electrolyte and diaphragm replaced by solid state battery.

Solid state battery has the characteristics of non-combustible, high temperature resistance, non-corrosion, non-volatile, solid state electrolyte is the core of solid state battery, electrolyte material largely determines the performance parameters of solid state lithium battery, such as power density, cycle stability, performance, high and low temperature performance and service life. In principle, solid-state lithium batteries and traditional lithium batteries are no different. The main difference between the two is that the solid-state battery electrolyte is solid, which is equivalent to the lithium ion migration site transferred to the solid electrolyte. The advantages of solid state batteries are mainly high energy density and good thermal stability.

At present, the energy density that liquid lithium batteries can achieve is near the limit, and the energy density of all-solid-state lithium batteries has the potential to break through 500wh/kg, so solid-state batteries are the future development direction of lithium batteries.

3. The solid-state battery industry is still in its early days

Worldwide, there are a number of manufacturing enterprises, start-up companies and university research institutes committed to solid-state battery technology, solid-state battery mass production products are few, the industrialization process is still in the early stage, and the output of market-oriented products is low.

In China, solid state battery companies mainly Huineng Technology, Ganfeng Lithium, Qingtao Energy, Wanxiang 1223, Weilan New Energy and other enterprises have been building solid state battery production lines, but fewer enterprises have achieved production and low output. For example, Xingying Technology's solid-state power lithium battery phase I project has an annual output of only 1GWh. Abroad, Solid Power's generation of 2Ah all-solid-state batteries (ASSB) can only be applied to the automotive field in 2026.

Not only are global battery companies seizing the layout, but global car companies are also laying out the research and development and production of solid-state batteries. Byd, NIO Toyota, Hyundai, BMW and other car companies have participated in the solid-state battery research layout.

4, solid-state batteries will accelerate the development of policy

As the future development direction of lithium batteries, solid-state batteries have also been supported by national policy planning, of which the development planning is more perfect mainly in the United States, Japan and Germany. Among them, Japan and Germany are aiming for all-solid-state batteries and are also seeking the development of other new concept batteries, while the United States is committed to cost reduction and the application of new positive materials.

In December 2019, China issued the "New Energy Automobile Industry Development Plan (2021-2035)" (draft for comment), which put forward the requirements for strengthening the research and development and industrialization process of solid-state batteries, and raised solid-state batteries to the national level. By 2030, China's liquid electrolyte will evolve into a solid electrolyte. At present, global enterprises have begun to increase the research layout of solid-state lithium batteries, coupled with the promotion of national policies, the industrialization process of solid-state lithium batteries is expected to accelerate. It is expected that China's solid-state battery shipments will grow rapidly from 2021 to 2030, and will exceed 250GWh by 2030. Considering the development path of lithium battery technology, various kinds of planning in China, and the solid state battery layout of various enterprises, the development of the solid state battery industry will become the general trend. In the future, the relevant technologies of China's solid-state battery industry will continue to progress, solid-state batteries will also show higher energy density, better and lower costs, and the time to achieve large-scale production and commercial development is not far away.