Hitachi Shipbuilding's development of solid-state batteries could rewrite industry rules.

From March 3rd to 5th, 2021, the Hitachi Shipbuilding Group unveiled the all-solid-state lithium-ion battery “AS-LiB” at the “Smart Energy Week” exhibition in Tokyo. The product has the highest capacity and a wide operating temperature range in the world.

AS-LiB

This solid-state battery applies Hitachi’s unique technology to solve the problem of the need for external mechanical pressure in the past.

structure

The structure of the all-solid-state lithium-ion battery consists of a positive electrode layer, a solid electrolyte layer, and a negative electrode layer. The solid electrolyte layer, which also has the function of a separator, only allows lithium ions to pass through.

electrolyte

Hitachi Shipbuilding claims that the all-solid-state lithium-ion battery is very safe, as there is no flame, smoke, or rupture after a puncture test. It is less likely to solidify at low temperatures or decompose at high temperatures and has a working range of -40 ° C to 100 ° C.

application

The solid electrolyte layer that only allows lithium ions to pass through can suppress side reactions and extend the life of the battery. Therefore, this battery from Hitachi Shipbuilding is suitable for use in space, industry, medicine, and new energy vehicles.

🔗Information source: Hitachi Shipbuilding, NIKKEI Asia

This article is a translation by ChatGPT of a Chinese report from 42HOW. If you have any questions about it, please email bd@42how.com.