Hitachi Shipbuilding has developed an all-solid-state battery with a capacity of 1,000 mAh, which is about 7 times that of the company’s previous products.
Editor’s note: This article is from the WeChat public account “Nikkei Chinese Network” (ID: rijingzhongwenwang).
Hitachi Zosen has developed an all-solid-state battery with the largest capacity in the world. The capacity is 1,000 mAh, which is about 7 times that of Hitachi Zosen’s previous products. Its characteristic is that it can work in special environments such as high temperature, and is expected to be used in a wide range of fields such as artificial satellites and industrial machinery. Hitachi Zosen will begin small-scale production of trial products at its Osaka plant in early 2021.
Hitachi Zosen’s newly developed all-solid-state battery
This all-solid-state battery was released at an exhibition held in Tokyo on March 3. It can also be used in harsh environments from -40°C to 100°C. Hitachi Zosen believes that there is a demand for industrial machinery and space applications in special environments, and strives to increase the capacity several times by 2025. In order to realize commercialization, cooperative enterprises will be sought.
Compared with mainstream lithium-ion batteries, all-solid-state batteries are less likely to catch fire and have high energy efficiency, so they have attracted attention as a new generation of batteries. Toyota Motor Corporation and Murata Manufacturing Co., Ltd. have also developed all-solid-state batteries, but they are faced with the problems of small capacity and high cost. For example, lithium-ion batteries used in smartphones generally have a capacity of several thousand milliampere hours, while all-solid-state batteries have not yet reached this level.
Hitachi Zosen has its own technology to manufacture sheet electrolytes without using adhesives and solvents. It is reported that by reducing impurities, the resistance is reduced, and the battery performance is improved.