Latest News on Solid-state Battery Research

The solid-state battery is a kind of battery using solid electrodes and solid electrolytes, which is different from the lithium-ion battery and lithium-ion polymer battery commonly used nowadays. Compared with traditional lithium-ion batteries, solid-state batteries have achieved both safety and performance improvements, with advantages such as high safety, high energy density, and a significantly increased range of material systems. According to a recent study, the global solid-state lithium battery market size will reach USD billion by 2028, growing at a CAGR of several percent during the period 2022-2028. This article presents the latest research results and application progress in the field of solid-state batteries in China, the United States, Japan, Germany, and Korea.

China & Global Solid State Battery Market Space Forecast 2020-2030

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Recent advances in the field of solid-state batteries in China

On September 19, 2022, the world’s first automated lithium metal battery manufacturing dedicated production line was launched in Hefei, achieving a major breakthrough of 500 Wh/kg energy density for new generation lithium metal batteries.

On August 31, 2022, the first domestic solid-state lithium-ion battery technology exchange meeting was held in Beijing, where several companies showcased their self-developed solid-state lithium-ion battery samples and products.

On July 28, 2022, the first domestic smartwatch based on all-solid-state lithium-ion battery technology, which uses innovative flexible packaging technology and wireless charging technology, was released in Shanghai.

Recent advances in the field of solid-state batteries in the United States

On December 10, 2022, Solid Power, a U.S. solid-state battery startup, said it will begin testing solid-state batteries for automotive production in early 2022.1 The company’s first-generation cells can already hold 15 to 20 percent more energy than the lithium-ion batteries used in today’s electric vehicles.

On November 16, 2022, QuantumScape, a U.S. solid-state battery company, announced a $10 billion long-term supply agreement with Volkswagen to supply its next-generation solid-state lithium-metal batteries to the company. The company says its solid-state lithium metal batteries offer high energy density, fast charge and discharge, and long life.

On Oct. 26, 2022, Toyota announced that it will launch new hybrid vehicles with all-solid-state lithium-ion batteries around 2025. Toyota said its all-solid-state lithium-ion battery technology has achieved high safety, high power, and high durability, among other goals.

Recent advances in the field of solid-state batteries in Japan

On October 26, 2022, Toyota announced that it will launch a new hybrid vehicle with all-solid-state lithium-ion batteries around 2025. Toyota said that its all-solid-state lithium-ion battery technology has achieved its goals of high safety, high power, and high durability.

On September 30, 2022, the Japanese government announced that it will invest hundreds of billions of yen to fund domestic companies to develop solid-state batteries. The program aims to accelerate the commercialization of solid-state batteries and enhance Japan’s competitiveness in the global lithium battery market.

On August 25, 2022, Panasonic announced a partnership with Redwood Materials, a U.S. solid-state battery company, to develop and produce recycled lithium-ion and solid-state batteries for automotive and consumer electronics applications. The partnership will leverage Redwood Materials’ advanced recycling technology and Panasonic’s manufacturing capabilities to improve resource efficiency and reduce costs.

Recent advances in the field of solid-state batteries in Germany

On November 15, 2022, German Chancellor Angela Merkel announced plans to allocate €1 billion to support Varta, a German battery manufacturer, and also to fund the Fraunhofer Institute for Ceramic Technologies and Systems (IKTS), a battery research and development institute, for the development of the next generation of solid-state batteries. The program aims to reduce German automakers’ dependence on Chinese, Japanese, and Korean battery suppliers.

On October 20, 2022, researchers at the German Research Center Jülich (FZ Jülich) published a paper on a method for fast charging of solid-state batteries. They found that adding trace amounts of lithium salts to a solid-state electrolyte can significantly improve the migration rate and stability of lithium ions, leading to fast charging with high efficiency and safety.

Recent advances in the field of solid-state batteries in Korea

On December 10, 2022, researchers at the Korea Advanced Institute of Science and Technology (KAIST) announced the development of a new solid-state electrolyte material capable of efficient lithium-ion transport at room temperature. The material is a nanocomposite film based on a polymer and ceramic complex with high electrical conductivity, high stability, and low cost.

On November 20, 2022, South Korea’s Samsung SDI announced that it will begin production of all-solid-state lithium metal batteries in 2023 and plans to achieve mass production in 2025. The company said its all-solid-state lithium metal battery technology has achieved an energy density of 300 Wh/kg and a cycle life of more than 1,000 cycles.

On Oct. 15, 2022, South Korea’s LG Chem and U.S. solid-state battery company QuantumScape signed a strategic partnership agreement to jointly develop and produce all-solid-state lithium metal batteries for automotive and other applications. The agreement will leverage QuantumScape’s innovative technology and LG Chem’s manufacturing scale to accelerate the commercialization of solid-state batteries.

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