通过赝电容效应，嵌入多孔石墨烯中的Na3(VO(0.5))2(PO4)2F2纳米颗粒具有卓越的高倍率性能。
Superior high-rate capability of Na3(VO(0.5))2(PO4)2F2 nanoparticles embedded in porous graphene through the pseudocapacitive effect.
作者信息
Xiang Xingde, Lu Qiongqiong, Han Mo, Chen Jun
机构信息
Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China.
出版信息
Chem Commun (Camb). 2016 Mar 4;52(18):3653-6. doi: 10.1039/c6cc00065g.
Na3(VO(0.5))2(PO4)2F2 nanoparticles embedded in porous graphene have been reported as a superior high-rate cathode material for sodium-ion batteries, exhibiting an excellent electrochemical performance with a high reversible capacity of 100 mA h g(-1) at 1 C, 77 mA h g(-1) at 50 C, and a capacity retention of 73% after 1000 cycles at 50 C. In particular, a significant contribution of the pseudocapacitive effect to the Na-storage capacity has been found for the first time.
嵌入多孔石墨烯中的Na3(VO(0.5))2(PO4)2F2纳米颗粒已被报道为一种用于钠离子电池的优异高倍率正极材料，在1 C时具有100 mA h g(-1)的高可逆容量，在50 C时具有77 mA h g(-1)，在50 C下1000次循环后容量保持率为73%，展现出优异的电化学性能。特别是，首次发现赝电容效应对钠存储容量有显著贡献。
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