company news about Japanese battery giant launches new solid-state batteries, with samples shipped as early as January this year

According to Interface News on January 2, 2024, Maxell, a large Japanese battery company, has developed a cylindrical solid-state battery with a capacity of up to 200 milliampere hours, which is 25 times the capacity of traditional ceramic packaging (square) batteries. The samples were shipped as early as January 2024.

Since last year, Japanese companies have taken frequent actions in the application of all solid-state batteries.

According to Xinhua News Agency on October 12, 2023, Toyota Motor Corporation of Japan and Chuguang Xingchan Oil Company of Japan announced on the 12th that they will cooperate in the mass production of all solid state batteries for pure electric vehicles, jointly committed to the research and development of solid-state electrolyte mass production technology and improving productivity, and strive to put all solid state batteries into practical use from 2027 to 2028.

According to a joint announcement by the two companies, the all solid state battery developed in this collaboration uses sulfide solid electrolytes, which can achieve high capacity, high power and other characteristics. The intermediate material used in sulfide solid electrolytes is lithium sulfide, which is produced from sulfur-containing by-products in petroleum refining processes.

The cooperation between the two companies will take three steps: the first stage is the research and development of sulfide solid electrolytes and the preparation for mass production verification; In the second stage, Chuguang Xingchan Petroleum Company will promote the manufacturing and mass production of sulfide solid electrolytes, and Toyota Motor Company will promote the research and development of all solid state batteries using this solid electrolyte and pure electric vehicles equipped with this type of all solid state battery, aiming to promote pure electric vehicles equipped with this type of all solid state battery to the market from 2027 to 2028; In the third stage, the two companies will explore future formal mass production based on the performance of the second stage.

Toyota President Hiroshi Sato said at a press conference in the afternoon that all solid-state batteries can achieve characteristics such as short charging time, long endurance distance, high output power, and are resistant to high temperatures and voltages. They have good safety and can meet the needs of sports cars with high power performance requirements and business vehicles that require frequent and fast charging.

In July 2023, a research team composed of specially appointed professors such as Naoji Sugano from Tokyo Institute of Technology in Japan successfully improved the fast charging performance and capacity of all solid-state batteries. This study was achieved through the development of new basic materials and the re research of manufacturing processes, and related articles were published in the American journal Science. The above research conducted by Tokyo Institute of Technology in Japan utilized high entropy materials to design and develop a solid electrolyte with high ion conductivity. By increasing the complexity of the composition of known lithium fast ion conductors, the lithium ion conductivity is about 2.3-3.8 times that of traditional materials, which can shorten battery charging time. This means that the indicators that affect battery charging performance can be increased by up to 3.8 times compared to traditional batteries, which is currently the highest level in the world.