|Addition of Asphalt Lets Lithium Batteries Charge In 5 Minutes |
Something we walk and drive on every day could be the key to making lithium-based batteries charge 20 times faster than current commercial batteries.
By: Elizabeth Montalbano
Electronics & Test
Materials & Assembly
October 18, 2017
Something we walk and drive on every day could be the key to making lithium-based batteries charge 20 times faster than they currently do.
That’s because researchers at Rice University have discovered that a small amount of asphalt may be the key to designing high-capacity lithium-metal batteries that charge 10 to 20 times faster than commercial lithium-ion batteries.
Researchers in the lab of James Tour, a Rice professor and chemist, have developed anodes that comprise porous carbon made from asphalt that showed significant stability even after more than 500 charge-recharge cycles, he said.
“They are very easy to make and have very high capacity—about 10 times more capacity than present battery anodes,” Tour told Design News . “Moreover, they charge in five minutes rather than two to four hours.”
The anodes demonstrated a high-current density of 20 milliamps per square centimeter, showing their promise for use in rapid charge and discharge batteries that also require high density, according to the team.
Researchers reported their findings in the American Chemical Society journal ACS Nano.
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