Stanford Researchers Created A Smartphone Battery That Charges In Only One Minute
Last year, eMarketer reported that the global smartphone audience passed 1.75 billion people. As smartphones become ubiquitous, the demand for longer-lasting batteries will continue to increase. Fortunately, researchers at Stanford University are building an aluminum-ion battery prototype that speeds up the charging times. And the aluminum-ion battery could eventually replace many of the lithium-ion and alkaline batteries used in many smartphones today.
“We have developed a rechargeable aluminum battery that may replace existing storage devices, such as alkaline batteries, which are bad for the environment, and lithium-ion batteries, which occasionally burst into flames,” said Stanford University chemistry professor Hongjie Dai, the lead researcher of the project, in an article by the Stanford Report. “Our new battery won’t catch fire, even if you drill through it.”
An aluminum-ion battery generally consists of two electrodes, one negatively charged anode made of aluminum and a positively charged cathode. Professor Dai said that his team accidentally discovered that a simple solution is using graphite. This is why the Stanford 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, according to Stanford graduate student and co-lead author Ming Gong.