A commercial sodium-ion battery used in China is getting closer to Tesla-style performance, with cheaper materials and a double-aluminum design that could challenge lithium-ion in cost-sensitive EVs ...

Electric vehicles have always lived or died on their batteries, and the next leap in range and convenience will depend less on sleek sheet metal than on chemistry and physics. Nuclear diamond ...

If you are worried about a massive battery replacement bill down the road, you may be surprised by the answer. Tesla batteries typically last 300,000-500,000 miles, or about 20 years for most owners.