Japanese companies will be at the forefront of testing solid electrolyte batteries

Japanese companies will be at the forefront of testing solid electrolyte batteries

Most car manufacturers aim to develop, by the end of the decade, electric vehicles with solid batteries that have a higher electrical storage density and fire safety than existing batteries, and Japanese companies run the risk of being in advanced testing of new generation batteries with advantages over competitors.

As Nikkei Asian Review explains, the Nippon Steel Technology steel company is about to start testing battery cells designed according to customer criteria in March 2023 and will start testing solid electrolyte batteries in the foreseeable future. Theoretically, this will enable the clients of this research centre to get closer to the start of the serial release of solid electrolyte traction batteries.

This type of battery cell prototype testing service is ready to be offered by OKI Engineering, which is already testing electronic elements like capacitors, but is about to start testing batteries for electronic devices and then reach traction batteries used by electric vehicles. By 2025, OKI expects to earn up to $3.5 million annually from such services. In addition to high temperature and humidity battery testing, OKI specialists are prepared to conduct additional types of testing at the request of customers.

For use in electronic devices, solid electrolyte batteries based on oxides have already been produced in series, but for electric vehicles, solid electrolyte batteries based on sulphides will be used and their mass production has not yet started. However, until the middle of this decade, a solid electrolyte hybrid vehicle promises to be introduced into the Toyota Motor series. The competing Honda and Nissan are running their own development of solid electrolyte traction batteries. Maxell is going to produce solid electrolyte batteries for industrial equipment in the coming months, TDK is already producing such components for consumer electronics. Analysts estimate that the capacity of the solid battery market will grow more than 1,000 times to $14.5 billion between 2019 and 2035. It is the electric motor batteries that will determine the bulk of this turnover by the end of the forecasting period.