GM Seeks Patent On 'Refurbished' Lithium Batteries
A General Motors patent application addresses one of the downsides of electric vehicles--battery degradation--with a system that would let technicians refurbish a lithium ion car battery.
The patent application, submitted a year ago and spotted by GM-Volt.com, would be something like the electric auto equivalent of scheduled maintenance.
After several years of driving, the lithium ion batteries would either be refurbished on site or the battery pack would be swapped out. Even if a fresh battery pack is installed, GM's patent application argues that refreshing used batteries without totally dismantling them can save on costs significantly.
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