Japan's advance in all-solid-state batteries!

All-solid-state batteries have solid positive electrodes, negative electrodes, and electrolytes, so compared to the lithium-ion batteries currently used in mainstream EVs, there is no risk of battery fluid leakage, which can improve safety. At the same time, it also has advantages such as increased battery capacity and significantly shortened charging time. On the other hand, there are still many issues in practical application, such as the lack of mass production technology for high-performance products for EVs. Against this background, in order to achieve early installation in EV vehicles, various industries have joined hands to launch a development project for all-solid-state batteries in an industry-university-government cooperation model.

In June 2018, the New Energy and Industrial Technology Development Organization (NEDO) of Japan, together with four automobile and motorcycle manufacturers, five battery manufacturers, 14 material manufacturers, and 15 universities and research institutions, launched a project to develop automotive all-solid-state batteries.

The project aims to establish the basic technology of all-solid-state batteries by 2022, and by around 2030, the volume energy density of battery cells will be doubled to 600Wh/L based on the current LiB, the cost will be reduced by two-thirds, and the EV fast charging time will be shortened to 10 minutes, one-third of the original time.

In addition, manufacturers such as Hitachi Zosen, Japan Special Ceramics, Nippon Insulators, TDK, and Taiyo Yuden are also independently developing all-solid-state batteries and materials.