Researchers at Stanford University created a smartphone battery that charges in only one minute. The project was published on 6 April 2015. Stanford University chemistry professor Hongjie Dai is the lead researcher of the project.
The battery invented is the first high-performance aluminum battery which is fast-charging, long-lasting and inexpensive.
The researchers placed the aluminum anode, a graphite cathode and an ionic liquid electrolyte inside of a polymer-coated pouch. The electrolyte is essentially a salt that is liquid at room temperature so it is safe.
An aluminum-ion battery generally consists of two electrodes, one negatively charged anode made of aluminum and a positively charged cathode. The aluminum-ion battery could eventually replace many of the lithium-ion and alkaline batteries used in many Smartphones today.
Application of the Aluminum batteries
•Aluminum batteries could be used to store renewable energy on the electrical grid.
•An aluminum battery can be recharged tens of thousands of times. It's hard to imagine building a huge lithium-ion battery for grid storage.
•Aluminum-ion technology also offers an environmentally friendly alternative to disposable alkaline batteries.
Aluminum has long been an attractive material for batteries, mainly because of its low cost, low flammability and high-charge storage capacity. For decades, researchers have tried unsuccessfully to develop a commercially viable aluminum-ion battery.
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