Characteristics of a lithium-polymer battery based on a lithium powder anode

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The characteristics of a lithium-polymer battery which comprises a novel lithium powder-based anode, a LiCoO2-based cathode, and a polyacrylonitrile-based gel-type polymer electrolyte are investigated. Lithium powder with diameter of 20-40 mum is produced by forming a dispersion of molten lithium metal in hot silicon oil and subsequent cooling. The lithium powder electrode is successfully manufactured by coating the slurry of the lithium powder, PVdF binder, and THF on a copper substrate. A lithium-polymer cell with the lithium powder anode shows somewhat longer cycle life at a 1 C rate of discharge and higher discharge capacity at low temperature compared with a cell prepared with a lithium foil anode. A reduction of polarization due to the large surface area of the lithium powder anode is believed to be responsible for these characteristics. (C) 2001 Elsevier Science B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE SA
Issue Date
2001-02
Language
English
Article Type
Article
Keywords

ELECTROCHEMICAL-BEHAVIOR; RECHARGEABLE BATTERIES; ELECTROLYTE; SURFACE; IMPROVEMENT; CYCLABILITY; EFFICIENCY; ADDITIVES; INTERFACE; BONDS

Citation

JOURNAL OF POWER SOURCES, v.93, no.1-2, pp.145 - 150

ISSN
0378-7753
DOI
10.1016/S0378-7753(00)00557-7
URI
http://hdl.handle.net/10203/175537
Appears in Collection
CBE-Journal Papers(저널논문)
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