Donut Lab hits 409 Wh/kg in battery lab test, but credibility is gone
Donut Lab has published a new independent test claiming its battery reached an energy density of 409 Wh/kg and 805 Wh/L, the first energy-density figure the company has put on record after months of scrutiny.
But the number lands against a promise t…
Low-cost sodium batteries are already reaching Tesla performance levels in China
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 and grid storage.
Huawei is reportedly testing new tech for its biggest phone battery yet
A new leak claims Huawei is experimenting with fresh battery materials and designs that could take smartphone capacity beyond 10,000mAh.
Battery tech that stores over 9 times more energy is here and it’s perfect for your gadgets
Researchers have developed a new silicon-carbon battery design that can store up to nine times more energy while staying stable over time.