Development of High-Capacity Nickel-Metal Hydride Batteries using Superlattice Hydrogen-Absorbing Alloys

Autor: Toshiyuki Nohma, Shigekazu Yasuoka, Tetsuyuki Murata, Tadayoshi Tanaka, Yoshitaka Baba, Hiroshi Nakamura, Jun Ishida, Teraoka Hirohito, Yoshifumi Magari, Masaru Kihara
Rok vydání: 2006
Předmět:
Zdroj: ECS Meeting Abstracts. :128-128
ISSN: 2151-2043
DOI: 10.1149/ma2005-01/3/128
Popis: New R–Mg–Ni (R: rare earths) superlattice alloys with higher-capacity and higher-durability than the conventional Mm–Ni alloys with CaCu 5 structure have been developed. The oxidation resistibility of the superlattice alloys has been improved by optimizing the alloy composition by such as substituting aluminum for nickel and optimizing the magnesium content in order to prolong the battery life. High-capacity nickel-metal hydride batteries for the retail market, the Ni-MH2500/900 series (AA size type 2500 mAh, AAA size type 900 mAh), have been developed and commercialized by using an improved superlattice alloy for negative electrode material.
Databáze: OpenAIRE