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[KJS5] Developing electrode materials for Li-ion batteries: High Rate capability
Keywords:Li-ion Battery、Cathode、F-containing electrode materials、high rate capability
LiFeSO4F or LiVPO4F can have higher energy density than LiFePO4 due to high redox potential. Especially, LiFeSO4F achieves the highest voltage (3.9 V) among Fe2+/Fe3+ redox couples. Even though triplite LiFeSO4F has full disordering of Li/Fe in metal sites that can block Li long-range Li diffusion channel and then lead to poor electrochemical activity, it can show reasonable electrochemical activity and good rate capability.
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