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Record Details

Record 38 of 15673
Lightweight nickel electrode for nickel hydrogen cells and batteries
Author and Affiliation:
Britton, Doris L.(NASA Lewis Research Center, Cleveland, OH, United States)
Abstract: The nickel electrode was identified as the heaviest component of the nickel hydrogen (NiH2) battery. The NASA Lewis Research Center is developing nickel electrodes for NiH2 battery devices which will be lighter in weight and have higher energy densities when cycled under a low Earth orbit regime at deep depths of discharge. Lightweight plaques are first exposed to 31 percent potassium hydroxide for 3 months to determine their suitability for use as electrode substrates from a chemical corrosion standpoint. Pore size distribution and porosity of the plaques are then measured. The lightweight plaques examined are nickel foam, nickel felt, nickel plastic and nickel plated graphite. Plaques are then electrochemically impregnated in an aqueous solution. Initial characterization tests of the impregnated plaques are performed at five discharge levels, C/2, 1.0 C, 1.37 C, 2.0 C, and 2.74 C rates. Electrodes that passed the initial characterization screening test will be life cycle tested. Lightweight electrodes are approximately 30 to 50 percent lighter in weight than the sintered nickel electrode.
Publication Date: Jan 01, 1986
Document ID:
19880029404
(Acquired Nov 28, 1995)
Accession Number: 88A16631
Subject Category: ENERGY PRODUCTION AND CONVERSION
Document Type: Conference Paper
Publication Information: (SEE A88-16601)
Publisher Information: United States
Meeting Information: International Power Sources Symposium; 32nd; June 9-12, 1986; Cherry Hill, NJ; United States
Financial Sponsor: NASA; United States
Organization Source: NASA Lewis Research Center; Cleveland, OH, United States
Description: 9p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ELECTROCHEMISTRY; LIFE (DURABILITY); NICKEL HYDROGEN BATTERIES; WEIGHT REDUCTION; CHEMICAL ATTACK; ELECTRODES; FLUX DENSITY; IMPREGNATING; LOW EARTH ORBITS; POROSITY
Imprint And Other Notes: IN: International Power Sources Symposium, 32nd, Cherry Hill, NJ, June 9-12, 1986, Proceedings (A88-16601 04-44). Pennington, NJ, Electrochemical Society, Inc., 1986, p. 420-428. Previously announced in STAR as N86-21978.
Availability Source: Other Sources
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