General Motors will switch electric vehicles from batch batteries to
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General Motors will switch electric vehicles from batch batteries to cylindrical batteries – type 4680, like Tesla

American General Motors is considering switching to cylindrical batteries in its electric vehicles instead of the pack options used today. This promises the manufacturer a number of advantages. Other leading automakers are either already pursuing a similar strategy or are preparing to consider such a possibility.

    Image source: General Motors

Image source: General Motors

The American auto giant is known to use pack batteries manufactured by LG Energy Solution. According to The Elec, citing industry sources, GM’s new choice resulted in the cancellation of construction of a new plant jointly with LG. Meanwhile, the automaker is taking steps towards the eventual transition to cylindrical versions. It is expected that they will be implemented in future models.

According to reports, GM intends to select 4680 batteries – the same type used by Tesla. Other EV manufacturers such as BMW, Volvo and Stellantis are also considering their use, according to the publication – 4680 batteries are believed to be more suitable for EVs compared to other cylindrical versions.

It is known that for battery manufacturers, the process of manufacturing anodes, cathodes and separators and packing them in cylindrical cases is extremely simple. At the same time, round batteries have a lower “energy density” compared to pack or prism batteries, since there is quite a lot of free space in large blocks.

The use of long cylindrical batteries type 4680 with a length of 80 mm makes their use more efficient – there is less free space when packing. At Tesla, this option is even more compact thanks to special modifications.

It seems that with prices rising in the industry, General Motors has decided to switch to cylindrical batteries. Cylindrical batteries are the oldest type, so manufacturers have long advanced their manufacturing technologies and have many solutions to reduce production costs.

About the author

Dylan Harris

Dylan Harris is fascinated by tests and reviews of computer hardware.

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