Abstract
The electrochemical characteristics of Mg2Ni-Ni alloys prepared by mechanical alloying (MA) using a planetary ball mill were investigated. The discharge capacity depends on the molar ratio in Ni and Mg2Ni, and it has a maximum value of about 480 mAh/g at the equimolar ratio of Ni/Mg 2Ni. This discharge capacity (480 mAh/g) is about 74% of the theoretical one. The discharge capacity is reduced to about half within five cycles. Thus, the cycle time would be improved by inhibiting the oxidation of Mg2Ni.
Original language | English |
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Pages (from-to) | 649-658 |
Number of pages | 10 |
Journal | Advanced Powder Technology |
Volume | 16 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2005 |
Keywords
- Mechanical alloying
- MgNi
- Nickel-metal hydride battery
- Oxidation
ASJC Scopus subject areas
- Chemical Engineering(all)
- Mechanics of Materials