TOKYO -- A Japanese quick-charging standard for electric vehicles has surfaced as a potential flash point in tariff negotiations with the U.S. as Washington flags what it sees as an undue obstacle for American players like Tesla.
CHAdeMO under fire as a nontariff barrier for Tesla and other American carmakers

Tesla Superchargers make up a relatively small portion of Japan's EV charging infrastructure. (Photo by Kosei Fukao)
TOKYO -- A Japanese quick-charging standard for electric vehicles has surfaced as a potential flash point in tariff negotiations with the U.S. as Washington flags what it sees as an undue obstacle for American players like Tesla.