A new active NaVMoO6 cathode material for rechargeable Li ion batteries
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2021年第7期
论文作者：Chunmao Huang Shenghong Liu Yang Wang Jingjie Feng Yanming Zhao
文章页码：97 - 102
摘 要：Brannerite-type NaVMoO6 with vanadium(V5+) and molybdenum(Mo6+) elements in the highest valence states is synthesized by a sol-gel method using Na2CO3, NH4VO3, MoO3 and citric acid reagents. The results of X-ray diffraction（XRD） with Rietveld refinement and X-ray photoelectron spectroscopy（XPS） show that the obtained NaVMoO6 sample is single-phase. Novel electrode material（NaVMoO6） with layered structure is first utilized as cathode material for lithium ion batteries（LIBs）. The NaVMoO6 electrode delivers reversible specific capacity of 126.4 mA h g-1 at 5 mA g-1 after 50 cycles. The stable structure of NaVMoO6 is corroborated by ex-situ XRD, suggesting that this material is considered as a prospective cathode for LIBs. This studying enriches the possibilities of molybdenum-based materials as cathodes for LIBs.
Chunmao Huang1，Shenghong Liu1，Yang Wang1，Jingjie Feng1，Yanming Zhao1,2
1. School of Physics, South China University of Technology
摘 要：Brannerite-type NaVMoO6 with vanadium(V5+) and molybdenum(Mo6+) elements in the highest valence states is synthesized by a sol-gel method using Na2CO3, NH4VO3, MoO3 and citric acid reagents. The results of X-ray diffraction（XRD） with Rietveld refinement and X-ray photoelectron spectroscopy（XPS） show that the obtained NaVMoO6 sample is single-phase. Novel electrode material（NaVMoO6） with layered structure is first utilized as cathode material for lithium ion batteries（LIBs）. The NaVMoO6 electrode delivers reversible specific capacity of 126.4 mA h g-1 at 5 mA g-1 after 50 cycles. The stable structure of NaVMoO6 is corroborated by ex-situ XRD, suggesting that this material is considered as a prospective cathode for LIBs. This studying enriches the possibilities of molybdenum-based materials as cathodes for LIBs.
关键词：
