Capacity loss and faradaic efficiency of lithium thionyl chloride cells

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In lithium/thionyl chloride (Li/TC) cells, a lithium limited design was thought to be safer than a cathode limited design because the amount of lithium left in discharged cells would be minimal. However, lithium corrosion reduces the capacity faster than does cathode degradation during storage. The optimization of the ratio of lithium to carbon was studied, considering storage time and temperature. The efficiency of converting chemical energy into electrical energy has been studied for the case of D cells with surface area from 45 to 345 cm{sup 2}, under constant and various pulsed loads. Microcalorimetric monitoring of the heat output during ... continued below

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4 p.

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Hoier, S.; Schlaikjer, C.; Johnson, A. & Riley, S. May 1, 1996.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 118 times , with 15 in the last month . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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In lithium/thionyl chloride (Li/TC) cells, a lithium limited design was thought to be safer than a cathode limited design because the amount of lithium left in discharged cells would be minimal. However, lithium corrosion reduces the capacity faster than does cathode degradation during storage. The optimization of the ratio of lithium to carbon was studied, considering storage time and temperature. The efficiency of converting chemical energy into electrical energy has been studied for the case of D cells with surface area from 45 to 345 cm{sup 2}, under constant and various pulsed loads. Microcalorimetric monitoring of the heat output during discharge allowed the direct measurement of faradaic efficiency, and showed that self discharge is far more pervasive that previously acknowledged. Typical faradaic efficiencies for constant load varied from 30% at low current density to 90% at moderate and 75 % at high current density. Pulsed current further depresses these efficiencies, except at very low average current density.

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4 p.

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OSTI as DE96010861

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  • 37. power sources conference, Cherry Hill, NJ (United States), 17-20 Jun 1996

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  • Other: DE96010861
  • Report No.: SAND--96-1066C
  • Report No.: CONF-9606161--4
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/219339 | External Link
  • Office of Scientific & Technical Information Report Number: 234700
  • Archival Resource Key: ark:/67531/metadc670262

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  • May 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • April 14, 2016, 3:19 p.m.

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Hoier, S.; Schlaikjer, C.; Johnson, A. & Riley, S. Capacity loss and faradaic efficiency of lithium thionyl chloride cells, article, May 1, 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc670262/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.