A novel plating process for microencapsulating metal hydrides

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1837053· OSTI ID:413412

Law, H H; Vyas, B; Zahurak, S M; Kammlott, G W ^[1]

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1. AT and T Bell Labs., Murray Hill, NJ (United States)

One approach to increasing the lifetime of the metal hydride electrode has been the use of conventional electroless plating to produce a coating of copper or nickel on the surface of the metal hydride powders. In this paper, a novel method for microencapsulating the active electrode powders is presented. This new plating technique takes advantage of the reducing power of hydrogen already stored inside the metal hydride to plate a variety of metals onto metal hydride materials. This method greatly simplifies electroless plating for these powders, eliminating the need for stabilizers and additives typically required for conventional electroless plating solutions. Metals that can be electrolessly plated with stored hydrogen have been identified based on thermodynamic considerations. Experimentally, micrometers thick coatings of copper, silver, and nickel have been plated on several metal hydrides.

• Sponsoring Organization: USDOE
• OSTI ID: 413412
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 8 Vol. 143; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
COPPER
ELECTRODES
ENCAPSULATION
FABRICATION
HYDRIDES
HYDROGEN STORAGE
METAL-GAS BATTERIES
NICKEL
PLATING
SILVER