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Durable Hitachi Zosen Batteries

11.03.2021

Hitachi Zosen has introduced the world's most capacious solid state lithium batteries. Such batteries are not afraid of freezing to very low temperatures and are less flammable than traditional lithium batteries on a liquid electrolyte. Hitachi Zosen developers have succeeded in increasing the capacity of solid-state batteries by seven times, which is a world record.

Last year, Hitachi Zosen began small-scale production of 140mAh solid-state lithium batteries. This is much less than wet lithium batteries provide, but Hitachi Zosen batteries promise to operate in temperatures ranging from -40°C to 120°C. Such a range "kills" conventional lithium batteries and does not allow them to claim the role of batteries in the aerospace industry and in industrial equipment.

The only disadvantage of solid-state batteries is an order of magnitude lower charge density. Fortunately, Hitachi Zosen continues to develop and recently introduced a new solid state cell with a capacity of 1000 mAh, which is about seven times larger than the previous development.

The company is now starting small-scale production of high-capacity solid-state batteries for distribution of samples to interested customers. However, samples of the previous generation batteries will be sent to the ISS for testing in open space, which will not interfere with testing the development in extreme operating conditions.

Also, Hitachi Zosen will continue to improve the technology and increase the capacity of solid state batteries. It is planned that by 2025 the capacity of the company's solid electrolyte batteries will be increased to 2000 mAh, and this is not far from the capabilities of lithium batteries with liquid electrolyte, which are already approaching their maximum capabilities today.

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