During discharge the Lithium ions reverse direction for the Cathode. Tesla has been using 18650 cells manufactured by Panasonic in Asia in the Models S and X cars since 2013. These are small battery cells, slightly larger than the standard AA cells. The Tesla cylindrical cells are 18 mm in diameter and 65 mm tall.
How much do the batteries in a Tesla cost?
How Much Does It Cost to Replace a Tesla Battery? Tesla batteries are designed to last between 300,000 and 500,000 miles, so replacement shouldn’t be a major concern for most drivers. It’s estimated that the cost to replace a Model 3 battery will be in the $3,000 to $7,000 range.