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Published on: November 11, 2013
Ultrafast biphasic Na5V3(PO4)2(P2O7)2/C composite cathode for sodium-ion batteries
Yu Bai1, Yunyun Liu1, Yangyang Zhang1
1College of Chemistry & Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China. xiangxingde@nefu.edu.cn.
Abstract:
A biphasic Na5V3(PO4)2(P2O7)2/C composite is developed via a composition-regulation strategy as an ultrafast cathode for rechargeable sodium-ion batteries. It achieves a high practical capacity of 82.4 mA h g-1 at the large current of 1000 mA g-1 and obtains an impressive capacity retention of 88% after 1500 cycles.
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