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Citation: HOU Xian-Lu, NAN Jun-Min, HAN Dong-Mei, ZHAO Jun-Feng. Preparation and Performance of High-rated A-type MH-Ni Batteries[J]. Chinese Journal of Applied Chemistry, ;2004, 21(11): 1169-1173. shu

Preparation and Performance of High-rated A-type MH-Ni Batteries

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a Department of Chemistry, South China Normal University, Guangzhou 510631;
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b Department of Environment Engineering, Zhengzhou Economic Management Institute, Zhengzhou

Corresponding author: NAN Jun-Min,
Received Date: 20 October 2003
Available Online: 13 July 2004
Fund Project: 天津市自然科学基金(013607011)资助项目 (013607011)

A-type 2 400 mA·h nickel metal hydride batteries with high-rated discharge performance were prepared. The discharge performance of the battery was improved by using an end-face welded current collector and optimizing the electrode thickness, separator material and electrolyte composition. In addition, its charge performance at a high charge current was increased through addition of additives in the nickel electrode. The test results show that the batteries have a low internal resistance and good charge/discharge performance, and their cycle life is above 300 cycles. The discharge capacity is above 2 300 mA·h at 10C rate and the 2C rate charge efficiency vs 0.2C is above 95%. The batteries can be used under high charge/discharge current conditions.
- high-rate MH-Ni battery,
- battery preparation,
- charge/discharge performance
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