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Type: Journal article
Title: Gas consumption reactions and cycling characteristics of improved sealed Ni-Cd batteries
Author: Zhang, J.
Yu, J.
Cha, C.
Citation: International Journal of Electrochemical Science, 2012; 7(10):10233-10243
Publisher: Electrochemical Science Group
Issue Date: 2012
ISSN: 1452-3981
Statement of
Jixiao Zhang, Jingxian Yu and Chuansin Cha
Abstract: Conventional sealed Ni-Cd cells were improved for high-rate applications by mixing metal hydride (MH) alloy powder with Cd/CdO active materials. Experimental results demonstrated that the presence of MH alloy powder, such as MmNi3.55Co0.75Mn0.4Al0.3, improves the performance of conventional Ni-Cd cells as they are capable of consuming hydrogen and catalysing the recombination reactions of hydrogen and oxygen by both chemical and electrochemical routes. As a result, the safety of Ni-Cd batteries is significatly enhanced, particularly when they are operated under high-rate charge/discharge processes. The addition of MH alloy powder also slows down the capacity fade rate and extends the operation lifetime.
Keywords: Ni-Cd battery
Internal pressure
Gas consumption reactions
Metal hydride
Cycling characteristics
Rights: Copyright status unknown
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