Cheaper, faster, safer: New battery charges in 1 minute - ion battery
"We have developed a rechargeable aluminum battery that can replace alkaline batteries and lithium that are harmful to the environment-
Ion batteries burn occasionally, "said Dai Hongjie, a professor of chemistry at Stanford University.
Dai's team published their findings in the online edition of Nature magazine in April 6, called ultra-fast charging aluminum-ion battery’.
Their prototype consists of an aluminum anode and a graphite cathode packaged in a flexible polymer-
Coating bag with ionic liquid electrolyte.
"The electrolyte is basically a salt that is liquid at room temperature, so it is very safe," said Gong, a graduate student and co-professor at Stanford University.
The main author of the article nature.
Security is the main selling point of the Stanford prototype.
The video released by the team wearing shows that when the battery continues to work, they drill through the bag.
In contrast, life
At present, ion batteries used in most electronic devices will catch fire and explode once they are damaged.
"You can drill through the aluminum battery bag and it will continue to work for a while without fire," Dai said . ".
He also reported that the prototype had an "unprecedented" charging time of only one minute.
In addition, the new battery lasts more than 7,500 cycles without losing capacity, not typical lithium-
Ions can last 1000.
"This is the first timefast aluminum-
Ion battery is steadily constructed in thousands of cycles, "the author wrote.
Read more: Tesla batteries power the entire home-another feature of the Elon musk prototype is that it can be bent or folded safely, opening the possibility for wearable electronics and strange installationsshaped spaces.
Aluminum is also much cheaper than lithium, making the battery more eco-friendlyfriendly.
"Our batteries have everything the battery should have: cheap electrodes, good safety, high safety
"Fast charging, flexible, long cycle life," said Dai Xianglong . ".
However, there is a problem: it produces only about half of the typical lithium product.
Dai is not discouraged.
"Improving cathode materials can ultimately increase voltage and energy density," he said . ".
"I think it's a new battery early on.
Exciting.