首页|An integrated porous Ni3S2 electrode assisted by copper with advanced performance for sodium storage
An integrated porous Ni3S2 electrode assisted by copper with advanced performance for sodium storage
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NSTL
Elsevier
? 2022 The Korean Society of Industrial and Engineering ChemistrySodium ion battery has been rapidly consolidating its status of the dominant power supplier for largescale energy storage systems as a candidate of lithium ion battery and has gotten widely attention. In this work, an integrated porous Ni3S2 electrode assisted by copper using for sodium storage showed an advanced electrochemical performance and long life-span. Coupled with Cu particles planted on the surface of Ni foam, electron transfer can be fast induced, thus avoiding the electrode damage due to collection electron. It further achieved a superior retention of 88.7 % with the capacity of 417 mAh g?1. In the kinetics analysis, the capacitance-controlled capacity in the electrochemical process dominated, and the fast calculated Na+ diffusion coefficients was 4 × 10-10 cm2 s?1. Therefore, it deserves attention and further research for the commercial application of large-scale energy storage.