Solid-state lithium-ion batteries are a "new generation" battery technology that is expected to replace current lithium-ion batteries. In addition to research efforts by relevant institutions and suppliers, major car companies have also set their sights on this technology. It can even be said that solid-state batteries The production is closely related to the electrification layout of car companies. Based on reports from major media at home and abroad, it is not difficult to find:

　　1. As the car company with the highest voice for solid-state lithium-ion batteries, the Volkswagen Group has invested US$100 million in QuantumScape to develop solid-state batteries. Soon after joining hands with the domestic CATL, the Volkswagen Group will build a factory in Europe to produce solid-state lithium-ion batteries. Battery, and is expected to achieve mass production in 2024-2025. However, some foreign media believe that the Volkswagen Group may start laying out solid-state lithium-ion batteries by the end of 2020.

　　2. The BMW Group joined hands with SolidPower in 2017 to develop solid-state lithium-ion batteries, and also cooperated with domestic CATL to lay out electrified models.

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　　3. Toyota is also one of the early car companies to start developing solid-state lithium-ion batteries. In addition to joint efforts with Panasonic, its technical route focusing on sulfide solid-state electrolytes has also been exposed, and foreign media said Toyota is expected to launch a solid-state battery in 2022. battery models, and BYD applied for a patent for solid-state lithium-ion battery cathode composite materials in 2017, and is currently promoting the commercialization of solid-state batteries.

　　4. Hyundai Group has invested in Ionic Materials for solid-state battery research and development, and Samsung and Dyson are also funding the latter.

　　5. Honda’s partner in the field of solid-state lithium-ion batteries is also Panasonic. At the same time, the brand has cooperated with CATL, and Honda and General Motors have also "officially announced" that they will jointly develop "next generation" battery technology, except that in addition to fuel power cells Additionally, no further details have been disclosed.

　　In addition, some suppliers are also promoting research in the field of solid-state lithium-ion batteries, from Bollore, Continental, LG, Apple, to domestic BYD, CATL, Guoxuan Hi-Tech, Ganfeng Lithium Industry, etc., whether it is borrowed by car companies New technologies launch new products, and major suppliers compete for future lithium-ion battery market share. While accelerating technology research and development, to a certain extent, they are also racing against time.

　　Solid-state lithium-ion batteries have stronger driving force, larger energy reserves and faster charging. At the same time, because the solid electrolyte is non-flammable, non-corrosive, non-volatile and non-leakable, it will not catch fire even at high temperatures. Therefore, cars equipped with all-solid-state lithium-ion batteries will greatly reduce the probability of spontaneous combustion and are safer. The solid-state lithium-ion batteries of various car companies have achieved mass production, and domestic electric vehicles will usher in a battery revolution.

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