Batteries store electricity in a chemical form, inside a closed-energy system. They can be re-charged and re-used as a power source in small appliances, machinery and remote locations. Advances in battery technology may one day help to solve our energy crisis. The articles on this page explore advances in battery power technologies.
Freeplay Energy has released a human-powered electricity generator for commercial sale. Power is generated by pushing up and down with your foot on a step-action treadle. The
can be re-charged
Researchers at the Central Research Institute of Electric Power Industry (CRIEPI) in Japan have devised a new type of cathode that improves the performance of lithium-ion batteries that use an