LaNi{sub 5{minus}x}M{sub x} metal hydride alloys for alkaline rechargeable cells

Conference · Mon Dec 01 00:00:00 EST 1997

OSTI ID:549368

Witham, C K; Hightower, A; Bowman, Jr, R C; Fultz, B ^[1]; Ratnakumar, B V ^[2]

---

1. California Inst. of Tech., Pasadena, CA (United States)
2. Jet Propulsion Lab., Pasadena, CA (United States)

This work centers on making alloy modifications to LaNi{sub 5} by replacing Ni with various metal elements. The primary goal of the alloy modifications is to stabilize the alloy during electrochemical cycling in an alkaline medium. The reasons that some elements promote cyclic stability are explored, and the relative magnitude of their effect is Ge > Sn > Si > Ga > Al > In > Ni. Other properties are determined for each alloy, such as maximum capacity, charge transfer kinetics, hydrogen diffusion, charge overpotentials, and charge efficiency. Alloy microstructural information is measured by X-ray diffraction, and gas-phase.

• DOE Contract Number: FG03-94ER14493
• OSTI ID: 549368
• Report Number(s): CONF-970168-; ISBN 0-7803-3631-3; TRN: IM9751%%51
• Resource Relation: Conference: 12. Annual battery conference on applications and advances, Long Beach, CA (United States), 14-17 Jan 1997; Other Information: PBD: 1997; Related Information: Is Part Of The twelfth annual battery conference on applications and advances: Proceedings; Frank, H.A.; Seo, E.T. [comps.]; PB: 364 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
25 ENERGY STORAGE
ANODES
NICKEL-HYDROGEN BATTERIES
LANTHANUM ALLOYS
NICKEL ALLOYS
MATERIAL SUBSTITUTION
GERMANIUM
GALLIUM
ALUMINIUM
INDIUM
TIN
NICKEL
SILICON