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Citation: LIU Jian-Hua, WANG Dan, LIU Sheng-Qian, SONG Shi-Dong, TANG Zhi-Yuan. Characteristics of Spherical Ni(OH)₂ Doped with Carbon[J]. Chinese Journal of Applied Chemistry, ;2003, 20(6): 552-556. shu

Characteristics of Spherical Ni(OH)₂ Doped with Carbon

1.
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072

Corresponding author: TANG Zhi-Yuan,
Received Date: 9 September 2002
Available Online: 29 November 2002
Fund Project: 天津市自然科学基金资助项目(013607011) (013607011)天津市科委攻关项目(973103711) (973103711)

The doped spherical Ni(OH)₂ was prepared by ammonia complexing liquid phase codeposition method,using graphite powder and acetylene-black as dopants.XRD and SEM results indicated the intercalation of carbon dopants within the spherical Ni(OH)₂.The charge-discharge experiments showed that for Ni(OH)₂ electrodes without using graphite powder and acetylene-black as dopants,the discharging capacity and voltage at plateau were 270 mA·h/g by 0.2C,220 mA·h/g by 2C and 302 mV,respectively;for electrodes doped with 5.0% graphite,the corresponding values were 253 mA·h/g,216 mA·h/g and 320 mV,respectively;for electrodes doped with 5.0% acetylene-black,the corresponding values were 258 mA·h/g,222 mA·h/g and 324 mV,respectively.With electronic conductor being increased,the discharge capacity is decreased and the plateau voltage and the discharge ability at high rate are increased.
- spherical Ni(OH)₂,
- electronic conductor,
- charge-discharge performance
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Characteristics of Spherical Ni(OH)₂ Doped with Carbon