Preparation and Electrochemical Performance of Praseodymium Doped SnO₂ Particles as Negative Electrode Material of Lithium-Ion Battery

Abstract:

Pr doped SnO₂ particles as negative electrode material of lithium-ion battery are synthesized by the coprecipitation method with SnCl₄·5H₂O and Pr₂O₃ as raw materials. The structure of the SnO₂ particles and Pr doped SnO₂ particles are investigated respectively by XRD analysis. Doping is achieved well by coprecipitation method and is recognized as replacement doping or caulking doping. Electrochemical properties of the SnO₂ particles and Pr doped SnO₂ particles are tested by charge-discharge and cycle voltammogram experimentation, respectively. The initial specific discharge capacity of Pr doped SnO₂ the negative electrode materials is 676.3mAh/g. After 20 cycles, the capacity retention ratio is 90.5%. The reversible capacity of Pr doped SnO₂ negative electrode material higher than the reversible capacity of SnO₂ negative electrode material. Pr doped SnO₂ particles has good lithiumion intercalation/deintercalation performance.

• Periodical: Applied Mechanics and Materials (Volume 492)
• Pages: 370-374
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.492.370
• Online since: January 2014
• Authors: Xiao Zhen Liu, Guang Jian Lu, Xiao Zhou Liu, Jie Chen, Han Zhang Xiao
• Keywords: Chemical Synthesis, Lithium-Ion Battery, Negative Electrode Material, Praseodymium, TiN Dioxide

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