Tesla has spent years promoting its 4680 battery cell as the key to cheaper, longer-range electric vehicles. Yet the company’s own regulatory filings and the underlying science tell a far less ...

Tesla has started building Model Y battery packs with its in-house 4680 cells again, more than two years after pulling the plug on the original 4680-equipped Model Y to prioritize Cybertruck ...

Tesla has launched its first vehicle-to-grid (V2G) program in the United States, starting in select Texas markets. The ...

Tesla Inc.’s former energy chief has secured more than $230 million to expand his battery startup into new markets. It’s the latest sign that the multibillion-dollar US home energy storage market is ...

Panasonic, one of Tesla's most important battery cell suppliers, is working on a higher-density Li-ion battery cell that could offer up to a 25% capacity increase. The anode-free battery cells could ...