Graphene coating helps improve lithium-ion battery cathodes
Researchers at the California Institute of Technology (Caltech) have developed a method for coating lithium-ion battery cathodes with graphene, extending their life and performance. This recent effort may improve lithium-ion battery performance and reduce reliance on cobalt, an element frequently used in lithium-ion batteries that is difficult to source sustainably.
Image credit: Caltech
Caltech senior research scientist, David Boyd, has worked over the past decade to develop techniques for manufacturing graphene. In 2015, Boyd and colleagues discovered that high-quality graphene could be produced at room temperature. Prior to this, the production of graphene required extremely high temperatures, up to 1,000 degrees Celsius. After this breakthrough, they searched for new applications for graphene. Recently, Boyd teamed up with Will West, a technologist at Caltech’s Jet Propulsion Laboratory (JPL), which Caltech manages for NASA. West specializes in electrochemistry and, in particular, in the development of improved battery technologies. Boyd and West set out to see if graphene could create an improved lithium-ion battery, which they have shown to be possible.
Source: http://www.graphene-info.com/graphene-coating-helps-improve-lithium-ion-battery-cathodes
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