Discharge properties of Mg2Ni-Ni alloy synthesized by mechanical alloying

Takatoshi Tojo, Issei Yamamoto, Kibu Chiyo, Fumio Saito

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

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 languageEnglish
Pages (from-to)649-658
Number of pages10
JournalAdvanced Powder Technology
Volume16
Issue number6
DOIs
Publication statusPublished - 2005 Jan 1

Keywords

  • Mechanical alloying
  • MgNi
  • Nickel-metal hydride battery
  • Oxidation

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Discharge properties of Mg<sub>2</sub>Ni-Ni alloy synthesized by mechanical alloying'. Together they form a unique fingerprint.

Cite this