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Citation: WANG Rong, YAN Jie, ZHOU Zhen, DENG Bin, GAO Xue-Ping, SONG De-Ying. Regeneration of Anode Powder from Waste Metal Hydride/Ni Rechargeable Batteries[J]. Chinese Journal of Applied Chemistry, ;2001, 18(12): 979-982. shu

Regeneration of Anode Powder from Waste Metal Hydride/Ni Rechargeable Batteries

1.
Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071

Received Date: 23 April 2001
Available Online: 24 September 2001

The anode powder from waste MH/Ni batteries was regenerated by chemical and melting methods. The structure of the regenerated alloy was examined by XRD. The experimental results showed that the alloy structure is of CaCu₅ type. The constant-current charge/discharge test was carried out for the original alloy and the regenerated alloy, both showed almost the same discharging capacities of 295 mA·h/g at 0.2 C rate, but the discharge potential of the regenerated alloy was about 20 mV higher than that of the original alloy. The results of the cyclic tests at 1 C rate showed that the capacity reduction of the regenerated alloy was only 27% less than that of the original alloy.
- MH/Ni battery,
- alloy regeneration,
- structure,
- electrochemical capacity
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