adminCheaper solar cells with 20.2 percent efficiency
A solar-panel material that can cut down on photovoltaic costs while achieving competitive power-conversion efficiency of 20.2 percent has been created by researchers.
Extending a battery’s lifetime with heat
Over time, the electrodes inside a rechargeable battery cell can grow tiny, branch-like filaments called dendrites, causing short circuits that kill the battery or even ignite it in flames. But thanks to new experiments and computer simulations, researchers have explored in detail how higher temperatures can break down these dendrites — and possibly extend battery lifetimes.
