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  • ELECTRONICS AND ELECTRICAL ENGINEERING  (3)
  • INORGANIC AND PHYSICAL CHEMISTRY  (2)
  • Cybernetics, Artificial Intelligence and Robotics  (1)
  • 1
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    Test results of JPL LiSOCl sub 2 cells (1986)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: In the development of high rate Li-SO-Cl2 cells for various applications, the goal is to achieve 300 watt-hours per kilogram at the C/2 (5 amp) rate in a D cell configuration. The JPL role is to develop the understanding of the performance, life, and safety limiting characteristics in the cell and to transfer the technology to a manufacturer to produce a safe, high quality product in a reproducible manner. The approach taken to achieve the goals is divided into four subject areas: cathode processes and characteristics; chemical reactions and safety; cell design and assembly; and performance and abuse testing. The progress made in each of these areas is discussed.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: NASA. Goddard Space Flight Center The 1985 Goddard Space Flight Center Battery Workshop (date); p 117 - 130
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    An update of the JPL program to develop Li-SOCl2 cells (1985)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The goal of producing spiral wound D cell was met. The cell design and electrodes, particularly the carbon cathodes were produced in-house. Also all parts were assembled, the welding performed, the electrolyte aided and the cells sealed in-house. The lithium capacity (theoretical) was 19.3 Ah and that of the SOCl2 in the 1.8 m LiAlCl4 electrolyte, 16.4 Ah (a greater excess of SOCl2 is necessary for safe high rate operation). The electrode surface area was 452 sq cm. The carbon electrode comprised Shawinigen Black/Teflon -30 (90/10 by weight) mixture 0.020 inches thick on an expanded metal screen prepared in the JPL laboratory. There were two tab connections to the cathode. The 0.0078 inch thick lithium foil was rolled into an expanded nickel screen. The separator was Mead 934-5 fiberglass material.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: NASA. Goddard Space Flight Center The 1984 Goddard Space Flight Center Battery Workshop; p 175-182
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Sample acquisition and in-situ analysis using the ultrasonic/sonic driller/corer (USDC) and robotic platforms (2001)
    In:  Other Sources
    Details
    Publication Date: 2018-06-08
    Description: Future NASA exploration missions to Mars, Europa, Titan, comets and asteroids are seeking to perform sampling, in-situ analysis and possibly return of material to Earth for further tests.
    Keywords: Cybernetics, Artificial Intelligence and Robotics
    Type: The 6th International Symposium on Artificial Intelligence, Robotics, and Automation in Space; Montreal, Quebec; Canada
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Calorimetry of 25 Ah lithium/thionyl chloride cells (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Heat flow measurements of 25-Ah lithium thionyl chloride cells provided a method to calculate an effective thermal potential, E(TP) of 3.907 V. The calculation is useful to determine specific heat generation of this cell chemistry and design. The E(TP) value includes heat generation by electrochemical cell reactions, competitive chemical reactions, and resistance heating at the tabs, connectors, and leads. Heat flow was measured while applying electrical loads to the cell in an isothermal calorimeter set at 0, 20, and 60 C.
    Keywords: INORGANIC AND PHYSICAL CHEMISTRY
    Type: In: Primary and secondary lithium batteries (A93-37355 14-25); p. 42-50.
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Multi-KW dc distribution system technology research study (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The Multi-KW DC Distribution System Technology Research Study is the third phase of the NASA/MSFC study program. The purpose of this contract was to complete the design of the integrated technology test facility, provide test planning, support test operations and evaluate test results. The subjet of this study is a continuation of this contract. The purpose of this continuation is to study and analyze high voltage system safety, to determine optimum voltage levels versus power, to identify power distribution system components which require development for higher voltage systems and finally to determine what modifications must be made to the Power Distribution System Simulator (PDSS) to demonstrate 300 Vdc distribution capability.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: NASA-CR-150789 , REPT-29817-6001-TU-00
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Evaluation of mixed solvent electrolytes for ambient temperature secondary lithium cells (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The ethylene carbonate/2-methyltetrahydrofuran (EC/2-MeTHF) mixed-solvent electrolyte has been experimentally found to possess many desirable electrolyte characteristics for ambient-temperature secondary Li-TiS2 cell applications. As many as 300 cycles have been demonstrated, and a cycling efficiency figure-of-merit of 38.5 percent, for 10-percent EC/90-percent MeTHF mixed-solvent electrolyte in experimental Li-TiS2 cells. The improved performance of this electrolyte is attributable to the formation of a beneficial passivating film on the Li electrode by interaction with the EC.
    Keywords: INORGANIC AND PHYSICAL CHEMISTRY
    Type: International Power Sources Symposium; Jun 13, 1988 - Jun 16, 1988; Cherry Hill, NJ; United States
    Format: text
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    NASA TECHNICAL REPORTS
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