869 K
9 pp.
 
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TitleRechargeable Thin-film Lithium Batteries
Author(s)Bates, J. B.; Gruzalski, G. R.; Dudney, N. J.; Luck, C. F.; Yu, Xiaohua
Publication DateAugust 1993
Report NumberCONF-9308126--4
Unique IdentifierACC0177
Other NumbersLegacy ID: DE94018957; OSTI ID: 10182920
Research OrgOak Ridge National Laboratory, TN (United States)
Contract NoAC05-84OR21400
Sponsoring OrgU.S. Department of Energy (DOE), Washington, DC (United States)
Other InformationSurface Mount Technical Association international conference, San Jose, CA (United States), 31 Aug - 2 Sep 1993
Subject25 Energy Storage; Electric Batteries; Design; Thin Films; Lithium; Performance; Electrodes; Solid Electrolytes
Related Web PagesThin-film Lithium Batteries
AbstractRechargeable thin film batteries consisting of lithium metal anodes, an amorphous inorganic electrolyte, and cathodes of lithium intercalation compounds have recently been developed. The batteries, which are typically less than 6 {mu}m thick, can be fabricated to any specified size, large or small, onto a variety of substrates including ceramics, semiconductors, and plastics. The cells that have been investigated include Li TiS{sub 2}, Li V{sub 2}O{sub 5}, and Li Li{sub x}Mn{sub 2}O{sub 4}, with open circuit voltages at full charge of about 2.5, 3.6, and 4.2, respectively. The development of these batteries would not have been possible without the discovery of a new thin film lithium electrolyte, lithium phosphorus oxynitride, that is stable in contact with metallic lithium at these potentials. Deposited by rf magnetron sputtering of Li{sub 3}PO{sub 4} in N{sub 2}, this material has a typical composition of Li{sub 2.9}PO{sub 3.3}N{sub 0.46} and a conductivity at 25{degrees}C of 2 {mu}S/cm. The maximum practical current density obtained from the thin film cells is limited to about 100 {mu}A/cm{sup 2} due to a low diffusivity of Li{sup +} ions in the cathodes. In this work, the authors present a short review of their work on rechargeable thin film lithium batteries.
869 K
9 pp.
 
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