热电池用正极材料钼掺杂钒酸铜制备及性能
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摘要
采用溶胶凝胶法合成了Mo掺杂钒酸铜(Cu_5V_2O_(10))正极材料,考察合成条件对该材料性能影响,结果表明:在掺Mo量为0.15、煅烧温度为750℃和煅烧时间为10 h时合成材料的放电性能最佳,初始电压为2.842 3 V,截止2 V时的比容量为229.5 mAh/g;煅烧温度对材料的放电性能有较大影响,煅烧温度越高反应越充分,在实验范围内煅烧时间对材料的放电性能影响不大。
Mo doped Cu_5 V_2 O_(10) cathode material was synthesized by sol-gel method and synthesis conditions of the material were studied. The results show that, when the doping ratio of Mo is 0.15 under a calcination temperature of750 ℃ for 10 h, the material achieved its optimum performance with an initial discharge voltage of 2.842 3 V and a discharge specific capacity of 229.5 mAh/g at a cutoff voltage of 2.0 V. The calcination temperature has a great influence on discharge performance of the cathode material. At higher temperature, the raw materials will react more completely. The calcination time in the experimental range has little influence on discharge performance of material.
Mo doped Cu_5 V_2 O_(10) cathode material was synthesized by sol-gel method and synthesis conditions of the material were studied. The results show that, when the doping ratio of Mo is 0.15 under a calcination temperature of750 ℃ for 10 h, the material achieved its optimum performance with an initial discharge voltage of 2.842 3 V and a discharge specific capacity of 229.5 mAh/g at a cutoff voltage of 2.0 V. The calcination temperature has a great influence on discharge performance of the cathode material. At higher temperature, the raw materials will react more completely. The calcination time in the experimental range has little influence on discharge performance of material.
引文
[1] SUN X J, WANG J W, XING Y, et al. Surfactant-assisted hydrothermal synthesis and electrochemical properties of nanoplate-assembled3D flower-like Cu3V2O7(OH)2·2 H2O microstructures[J]. Cryst Eng Comm, 2011,13:367-370.
[2] ANDRUKAITIS E, COOPER J P, SMIT J H. Lithium intercalation in the divalent metal vanadates Me V2O6(Me=Cu, Co, Ni, Mn or Zn)[J]. Journal of Power Sources,1995,54:465-469.
[3]苑晓宇,马伟民,闻雷,等.热电池正极材料的研究进展[J].陶瓷学报,2010,31(4):663-668.
[4] DAI J, REISNER D, KOGUT T, et al. High voltage cathode material for thermal batteries[C]//Proc.43rd Power Sources Conference.Philadelphia, PA:Power Sources Conference, 2008:67-68.
[5] DAI J, LAFFELLETTE R, REISNER D. High-voltage chemically stable-electrolyte for thermal batteries[C]//Proc.44th Power Sources Conf. Las Vega, NV:Power Sources Conference, 2010:33-34.
[6]杨少华,吕坤,赵平,等.一种热电池单体电池的制备及测试方法:中国,102867970[P].2013-01-09.
[2] ANDRUKAITIS E, COOPER J P, SMIT J H. Lithium intercalation in the divalent metal vanadates Me V2O6(Me=Cu, Co, Ni, Mn or Zn)[J]. Journal of Power Sources,1995,54:465-469.
[3]苑晓宇,马伟民,闻雷,等.热电池正极材料的研究进展[J].陶瓷学报,2010,31(4):663-668.
[4] DAI J, REISNER D, KOGUT T, et al. High voltage cathode material for thermal batteries[C]//Proc.43rd Power Sources Conference.Philadelphia, PA:Power Sources Conference, 2008:67-68.
[5] DAI J, LAFFELLETTE R, REISNER D. High-voltage chemically stable-electrolyte for thermal batteries[C]//Proc.44th Power Sources Conf. Las Vega, NV:Power Sources Conference, 2010:33-34.
[6]杨少华,吕坤,赵平,等.一种热电池单体电池的制备及测试方法:中国,102867970[P].2013-01-09.