TOKYO—Panasonic on Monday unveiled a new large prototype battery designed to help Tesla Inc. lower electric vehicle (EV) production costs, in a move the Japanese company’s battery chief said would deepen business ties with its key U.S. customer.
During a media roundtable where Kazuo Tadanobu showed the battery that is around five times the size of those currently used by Tesla, he also said Panasonic had no plans to make cheaper Lithium Iron Phosphate (LFP) batteries for more affordable EVs.
