The potentially-revolutionary aluminium battery is also more environmentally friendly than current lithium-ion and alkaline batteries and keeps working for "thousands" of cycles.
The "ultrafast rechargeable aluminium-ion battery", developed by chemists at Stanford University, is a "major breakthrough" for portable technology, according to the team that discovered it.
In experiments the battery successfully charged a smartphone in one minute, compared to current lithium-ion batteries that take hours to deliver a full charge. The aluminium-ion battery delivers two volts of electricity and could also potentially replace the millions of 1.5 volt AA and AAA batteries used in gadgets ranging from remote controls to toys.
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http://www.wired.co.uk/news/archive/2015-04/07/aluminium-ion-battery