Charging an EV battery is simply storing electrons and lithium ions in the appropriate electrode of the cells in the battery pack. Today, almost all the anode electrodes store electrical energy in natural or synthetic graphite particles coated onto the current collector in large EV cell factories. A few leading EV models (for example Tesla Y, Tesla 3, and Porsche Taycan) contain a small amount (a few percentage points) of silicon oxide additives mixed with the graphite, to increase the cells energy and power density, hence increasing EV range and charging speed for a better driving experience versus graphite-only EVs.
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