In many ways, the holy grail of energy efficiency right now is battery technology. There are massive efforts underway to boost battery energy density (energy stored per unit mass), extend battery life ...

Vietnamese automaker VinFast says it has a more affordable way to buy an electric vehicle. But the VinFast way also adds more math to the buying process for EVs, which can already be daunting for ...

(Reuters) - Electric car maker Tesla Inc plans to introduce a new low-cost, long-life battery in its Model 3 sedan in China later this year or early next that it expects will bring the cost of ...