Dongfeng E70 Unveiled with Solid-State Battery

Source: Autohome

Chinese automaker Dongfeng Motor Group has announced the delivery of its first 50 Dongfeng Aeolus E70 pure electric vehicles powered by solid-state lithium batteries.

Jointly developed with Ganeng Lithium, the E70 vehicles will be used for demonstration in the cab market in China. They will operate in the Jiangxi, Guangzhou, Zhejiang and Jiangsu provinces.

Despite many manufacturers researching the technology, there are currently no EVs with solid-state batteries released to the market.

The difference between a traditional battery and a solid-state one is in its electrolyte. By using a solid material for the electrolyte between the anode and the cathode, battery manufacturers can increase energy density (and therefore drive range) or reduce battery weight.

They are also said to require fewer steps during the production process and have a longer life span than batteries with liquid electrolytes.

The Ganfeng solid-state batteries utilise an advanced flexible diaphragm technology that allows lithium ions to travel between electrodes while inhibiting lithium dendrites.

The battery module uses an aluminium frame with high-precision seam laser welding technology to reduce redundant structure and achieve a pack efficiency of over 86 per cent.

The company did not however announce the range of the model or the energy density of the battery.

The success of Dongfeng’s solid-state batteries will be something to keep an eye on.

Source: The Driven | First EVs with solid-state batteries to be demonstrated in China

24 January 2022

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