Presentation 2003/1/10
Development of New La-Mg-Ni System alloys by Nano Structural Control
Tatsuoki KOHNO,
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Abstract(in English) The capacity of nickel-hydride battery using LaNi_5 system alloy is approaching its limits, because the repeated improvements to increase the discharge capacity have realized very high utilization of the intrinsic capacity. The hydrogen storage properties of the new ternary La-Mg-Ni system alloys, La_2MgNi_9, La_5Mg_2Ni_<23> La_3MgNi_<14>, were investigated. As a result, the negative electrode of the La_5Mg_2Ni_<23> alloy showed a large discharge capacity (410 mAh/g), 1.3 times larger than that of LaNi_5 system alloys. These La-Mg-Ni system alloys were found to be mainly composed by stacked AB_5 and AB_2 structure subunits in a superstructure arrangement. This alloy electrode was an effective way to improve the charge-discharge capability of the negative electrode.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Hydrogen Storage Alloy / Superstructure / Nickel Hydride Battery / La-Mg-Ni System
Paper # EE2002-57,CPM2002-133
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Conference Information
Committee EE
Conference Date 2003/1/10(1days)
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Paper Information
Registration To Energy Engineering in Electronics and Communications (EE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Development of New La-Mg-Ni System alloys by Nano Structural Control
Sub Title (in English)
Keyword(1) Hydrogen Storage Alloy
Keyword(2) Superstructure
Keyword(3) Nickel Hydride Battery
Keyword(4) La-Mg-Ni System
1st Author's Name Tatsuoki KOHNO
1st Author's Affiliation Power Supply Materials & Devices Laboratory,Corporate Research & Development Center,Toshiba Corporation()
Date 2003/1/10
Paper # EE2002-57,CPM2002-133
Volume (vol) vol.102
Number (no) 567
Page pp.pp.-
#Pages 5
Date of Issue