Electrical and Electrochemical Performance Characteristics of Small Commercial Li-Ion Cells

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Advanced rechargeable lithium-ion batteries are presently being developed and commercialized worldwide for use in consumer electronics, military and space applications. At Sandia National Laboratories we have used different electrochemical techniques such as impedance and charge/discharge at ambient and subambient temperatures to probe the various electrochemical processes that are occurring in Li-ion cell. The purpose of this study is to identify the component that reduces the cell performance at subambient temperatures. Our impedance data suggest that while the variation in the electrolyte resistance between room temperature and {minus}20 C is negligible the anode electrolyte interfacial resistance increases by an order of … continued below

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Ingersoll, D.; Nagasubramanian, G. & Roth, E.P. December 22, 1998.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 240 times. More information about this article can be viewed below.

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

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Advanced rechargeable lithium-ion batteries are presently being developed and commercialized worldwide for use in consumer electronics, military and space applications. At Sandia National Laboratories we have used different electrochemical techniques such as impedance and charge/discharge at ambient and subambient temperatures to probe the various electrochemical processes that are occurring in Li-ion cell. The purpose of this study is to identify the component that reduces the cell performance at subambient temperatures. Our impedance data suggest that while the variation in the electrolyte resistance between room temperature and {minus}20 C is negligible the anode electrolyte interfacial resistance increases by an order of magnitude in the same temperature regime. We believe that the solid electrolyte interface (SEI) layer on the carbon anode may be responsible for the increase in cell impedance. We have also evaluated the cells in hybrid mode with capacitors. High-current operation in the hybrid mode allowed fill usage of the Li-ion cell capacity at 25 C and showed a factor of 5 improvement in delivered capacity at {minus}20 C.

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8 p.

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OSTI as DE00002821

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  • The 14th Annual Battery Conference, Long Beach, CA (US), 01/12/1999--01/15/1999

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  • Report No.: SAND98-2844C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 2821
  • Archival Resource Key: ark:/67531/metadc673367

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  • December 22, 1998

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  • June 29, 2015, 9:42 p.m.

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  • April 11, 2017, 6:36 p.m.

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Ingersoll, D.; Nagasubramanian, G. & Roth, E.P. Electrical and Electrochemical Performance Characteristics of Small Commercial Li-Ion Cells, article, December 22, 1998; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc673367/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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