New battery material speeds up lithium-ion battery charging.
Korean researchers at the famous Korea Advanced Institute of Science and Technology (KAIST) have developed a new graphene battery material that speeds up charging dramatically, while maintaining capacity.
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KAIST team developed a new way of applying graphene using chemical vapor deposition. It produces a three-dimensional sheet of carbon free of impure elements.
The lack of foreign elements allows the battery to be recharged at a much faster rate than conventional materials, the team said. In tests, the capacity of the battery stayed constant even after 10,000 recharge cycles.
"We believe it will help remove problems found in conventional lithium-ion batteries, while also enhancing their performance," said KAIST Prof. Kang Jeong-koo to Yonhap, one of the two main developers in the team along with Prof. Kim Yong-hoon, who is also from the school.
Besides Graphene, aluminum has been found to do wonders for rechargeable batteries. A year ago, Stanford showed an aluminum battery that recharged in 60 seconds.
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Scientists apply Graphene also in display technology, creating ultra-thin flexible screens.