DETROIT—Our Next Energy (ONE), a two-year-old Michigan startup, said on Wednesday it had tested a prototype of its new battery in a Tesla Model S, driving 752 miles before recharging. ONE aims to begin producing battery packs that will deliver similar range—about double that of most existing electric vehicles—by late 2023, according to Mujeeb Ijaz,…

FRANKFURT—Mercedes-Benz on Monday took the wraps off its battery-powered VISION EQXX prototype which it says will have a range of more than 1,000 kilometres (km) per charge, taking a big stride in its electric vehicle (EV) ambitions. Daimler, soon to be rebranded Mercedes-Benz, announced plans in 2021 to invest more than 40 billion euros ($45…

A piece of copper that was struck by the U.S. Mint in Philadelphia in 1794 and was a prototype for the fledgling nation’s money was auctioned off for $840,000, considerably more than expected, an official said. Heritage auctions spokesman Eric Bradley said the “No Stars Flowing Hair Dollar” opened at $312,000 when it was put…