Method of activation treatment of Ni/MH secondary battery by hot

Details Method of activation treatment of Ni/MH secondary battery by hot Method of activation treatment of Ni/MH secondary battery by hot

1997-03-17

1999-02-23

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

320131, H02J 700

Patent

active

058748245

ABSTRACT:
The present invention provides a method of activation treatment of a Ni/MH secondary battery which comprises a step of immersing an electrode or battery in a solution or electrolyte and charging/discharging concurrently. In accordance with the activation treatment of a Ni/MH secondary battery by hot-charging method of the invention, the time required for activation treatment is remarkably saved and the activation process is carried out in a highly efficient manner, compared to the conventional methods of activation treatment.

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patent: 5645953 (1997-07-01), Kim et al.
patent: 5698963 (1997-12-01), Seong et al.
H. Sawa, et al., Effects of Oxidation Treatment of Ti-Zr-Ni Hydride Electrodes Containing Zr Ni Phase on Their Electrochemical Properties, the International Symposium on Metal-Hydrogen Systems, Fundamentals and Application, Stuttgart, FRG, Sep. 4-9:1527-1537 (1988).
S. Wakao, et al., Effects of Partial Substitution and Anodic Oxidation Treatment of Zr-V-Ni Alloys on Electrochemical Properties, J. Less-Common Treatment of Zr-V-Ni Alloys on Electrochemical Properties, J. Less-Common Met., 172-174: 1219-1226 (1991).
S. -R. Kim and J. -Y. Lee, Activation Behavior of ZrCrNiM Metal Hydride Electrodes(M=La, Mm(misch metal) Nd), Journal of Alloys and Compounds, 185:L1-L4 (1992).

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