The application of ZnO coated with carbon for Ni-Zn secondary battery
The sample of ZnO coated with carbon (ZnO/C) is successfully synthesized by using a high energy ball milling method.As anodic material in Ni/Zn secondary batteries,the ZnO/C has a lower charge platform and a higher discharge platform,the sample also has a smaller ohmic resistance and charge-transfer resistance than the pure ZnO,and the cycle performance of carbon-coated ZnO is significantly improved.The improvement of the electrochemical performance can be ascribed to the unique structure of amorphous carbon layer.
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