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Nickel-hydrogenBecause of the disintegration of LaNi5 as the lattice expands on absorbing hydrogen, a nickel hydrogen cell similar to a nickel cadmium cell was designed. The positive electrode is wrapped in a microporous separator and the leads are insulated. A negative conducting grid is inserted and welded to the top of the can into an open ended container which is then turned upside down and filled so that LiNa5 powder occupies all the space not used by the rest of the components. The bottom of the can is then welded on. A fill tube is located either on the bottom or on the top of the can. When welded shut, the cell is put into a pressure bomb and the lanthanum nickel is activated at about 1,000 pounds of hydrogen. Electrolytes are added to the cell as well as whatever amount of hydrogen precharge desired, and the cell is sealed. Advantages and disadvantages of the cell are discussed.
Document ID
19790013441
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mchenry, E. J.
(Bell Telephone Labs., Inc. Murray Hill, NJ, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop
Subject Category
Energy Production And Conversion
Accession Number
79N21612
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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