Recently, news frequently came from the research and development of solid-state batteries.

Too Blue New Energy and changan Automobile jointly released diaphragm-free solid state lithium battery technology, Gao Xiang, chairman of Tailan new energy, said that the company plans to implement non-diaphragm semi-solid battery loading verification in 2026 to meet the application requirements of new energy electric vehicles, it is planned to realize mass production of diaphragm-free all-solid-state batteries in 2027.

On November 5th, ningde era published a number of solid-state battery patents, including "solid electrolyte membrane and its preparation method, solid-state battery, electrical device", "modified solid electrolyte and its preparation method, solid-state battery and electrical device", "Solid-state battery monomer and its manufacturing method"; On the same day, Huawei's solid-state battery patent was published, and the patent was "doped sulfide material and its preparation method, lithium-ion battery"; BYD also published patents related to solid-state batteries, its patent name is "all solid state battery, battery pack and electrical equipment".

On November 7, GAC Group it said that the research and development results of its all-solid-state battery had been released in April, 2024, and the whole process manufacturing process had been initially opened. It was planned to apply this technology to car carrying in 2026.

Recently, sunwodaIt indicates that the energy density of solid-state batteries has been further increased to 500Wh/kg through the use of lithium metal in the negative electrode. Currently, there are laboratory prototype samples. It is estimated that the production of laboratory samples with energy density greater than 700Wh/kg for all-solid-state batteries will be completed in 2027.

It can be seen that car enterprises, battery enterprises and even cross-border enterprises in the industry have successively promoted the industrialization of solid-state batteries, all of which are optimistic about the development of solid-state batteries. Solid-state batteries have become the next technological commanding point of lithium batteries.

From the research and development progress of these enterprises in solid-state batteries, we can also see that it is common to advance the patent of card position technology and strengthen the patent strength. High-tech lithium battery has been sorted out before. At present, head battery enterprises and car enterprises have laid out solid-state battery-related technologies. The initial time for mass production of solid-state batteries is around 2027. Before the formal implementation of industrialization, battery enterprises and car enterprises will also launch a patent war to strengthen their competitiveness in the field of solid-state battery technology.

Judging from the product characteristics of solid-state batteries, it is precisely because they replace liquid electrolyte with solid electrolyte and match high-performance positive and negative electrode materials that solid-state batteries have significantly improved their energy density and safety. The application of solid-state batteries can not only expand the application scenarios of passenger cars, but also bring about application changes in aviation, 3C digital, energy storage and other fields.

At present, the research and development progress of solid-state batteries by battery enterprises and car enterprises can be said to be from laboratory research to sample verification. Solid-state batteries are mainly divided into sulfide, oxide, polymer and other routes. Sulfide technology route has become the main direction of solid-state battery industrialization due to its high energy density. However, at present, the capacity of sulfide solid-state batteries is mostly concentrated in 20Ah and below. With the development of research and development, it is expected that sulfide solid-state batteries will transition to small batch verification and larger capacity.

This also shows that in recent years, when the lithium battery industry has been adjusted and the production capacity has Ebb, the primary market continues to be optimistic about the development prospect of solid-state batteries and gives them financial support.

As a cutting-edge technology in the field of power batteries, the strategic positioning of solid-state batteries is gradually clear. More car companies and battery companies promote the industrialization of solid-state batteries, which is improving the performance and reducing the cost of solid-state batteries, making the short board of solid-state battery industry chain gradually complement. It is expected that in the future, with the approaching of solid-state battery industrialization, it will gradually shift from patent war to product war.