American General Motors may switch to using cylindrical batteries in electric vehicles, instead of the current package options. The manufacturer is sure to reap many benefits. Other top automakers are also considering a similar strategy.
The American auto giant has been using packet batteries made by LG Energy Solution. According to The Elec, citing industry source, GM’s decision to stop building a joint plant with LG led to cancellation of the plans for a new plant. The automaker is making progress towards the transition to cylindrical versions. These features are expected to be integrated into future models.
According to reports, GM will select 4680 batteries – which is the same type as Tesla’s. Other electric vehicle manufacturers, such as BMW and Volvo, are also interested in using them. According to the publication it is believed that 4680 battery are more suitable for electric vehicles than cylindrical versions.
The manufacturing of anodes, cathodes, and separators for batteries is very simple. They can then be packed into cylindrical cases. At the same time, cylindrical batteries have a lower “energy density” compared to packet or prismatic batteries, since there is quite a lot of free space when packed in large blocks.
Long cylindrical batteries of type 4680 have a length of 80mm. This makes them more efficient and leaves less space for packing. Special modifications make this option even more compact in Tesla.
General Motors seems to have decided to switch from cylindrical batteries to offset rising industry prices. Cylindrical batteries have the longest history, and manufacturers have developed many ways to lower production costs.