Electrochemical Properties of AB5 Type Flaky Hydrogen Storage Alloy Powders Propared by Two-Stage Rapid Quenching

• CUI Yang

  Graduate School of Engineering, Tokyo Metropolitan University

• YAMAMOTO Tetsu

  Graduate School of Engineering, Tokyo Metropolitan University

• OGUCHI Masahiro

  Teikoku Piston Ring Co., Ltd.

• HARAKAWA Yoshio

  Teikoku Piston Ring Co., Ltd.

• KAMASAKI Seiji

  Graduate School of Engineering, Tokyo Metropolitan University

書誌事項

タイトル別名

• Electrochemical Properties of AB5 Type Flaky Hydrogen Storage Alloy Powders Prepared by Two-Stage Rapid Quenching

抄録

AB₅ type LaNi_3.5Co_1.1-xCr_xAl_0.4 (x=0, 0.1) alloy powders were prepared by two-stage rapid quenching as negative electrode materials for Ni-MH batteries. The crystal structures, morphologies and electrochemical properties were examined. The results of X-ray diffraction analysis showed that both of these alloys had a typical hexagonal CaCu₅-type crystal structure. In recovered powders, a small quantity of the powders with uneven form were mixed with the flaky form powders that we have intended. The charge-discharge cyclic stability and discharge rate performance of chromium-containing LaNi_3.5Co_1.0Cr_0.1Al_0.4 alloy electrodes were much better than those of chromium-free LaNi_3.5Co_1.1Al_0.4 alloy electrodes. Additionally, we examined the arranged packing effect of the flaky powders in the disc electrodes on the discharge rate performance. We confirmed that the performance could be improved by the arranged packing technique.

収録刊行物

• 表面技術

  表面技術 54 (12), 1048-1051, 2003

  一般社団法人 表面技術協会

キーワード

• Two-Stage Rapid Quenching
• Hydrogen Storage Alloy
• AB<SUB>5</SUB> Type Flaky Powder
• Ni-MH Battery
• Arranged Packing Electrode

詳細情報

• CRID: 1390282679095804032
• NII論文ID: 10011819531
• NII書誌ID: AN1005202X
• DOI: 10.4139/sfj.54.1048
• ISSN: 18843409
• ISSN: 09151869
• NDL書誌ID: 6817036
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6817036
• 本文言語コード: en
• データソース種別:
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