Issue Date: April 11, 2016
Ceramic-graphene composite shows promise as battery electrode
Replacing the graphite anode commonly used in lithium-ion batteries with ones made of silicon or graphene, which have high lithium uptake capacities, could substantially boost the batteries’ charge capacity, in principle. In practice, however, silicon electrodes swell and shrink with each charging cycle, causing them to crack and fail quickly. Graphene electrodes also quickly lose their capacity to store and release lithium ions.
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- Chemical & Engineering News
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