Study on sealed formation mechanism of Ni-MH battery
XIE De-ming
CHENG Hui-san
Abstract：The mechanism of formation for Ni-MH battery was discussed in detail: (1) The role of Cobalt in formation. To design the ratio of the capacity of negative to that of positive should consider discharge and charge reserve.Design of a negative capacity 40% greater than positive capacity is adequate to ensure a good cell performance. (2)Compared with common formation,the self-discharge formation has advantages as follows :A better high-rate(lC) discharge pefformance;B. Save online time and electric power consumption;C. Beneficial to classification of combined battery. (3)Heat treatment of pre-charged Ni-MH battery can significantly decrease activation lime and internal pressure when charged at high rate which benefited the improvement of comprehensive characteristics of Ni-MH battery. (4) Compared with sealed formation and opened formation, the difference and the cause was discussed.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 7-10 )