TOKYO, June 8 : Panasonic Holdings said on Monday it plans to start mass production of battery cells for data centre applications at a plant in the U.S. state of Kansas in the financial year 2028, which ends March 2029. Here are some details: • The company said it would allocate about 350 billion yen ($2.18 billion) of its previously announced 500 billion yen investment in AI infrastructure over fiscal 2026-2028 to its Energy unit, which supplies Tesla, and 150 billion yen to its Industry