Abstract: A rechargeable battery cell has been described in which lithium cobalt oxide (LiCoO2) is used as the positive electrode, lithium intercalated into graphite is used as the negative electrode, and a liquid sulfur dioxide solvate of lithium tetrachloroaluminate is used as the electrolyte. Liquid sulfur dioxide solvates of lithium tetrachloroaluminate have low vapor pressure and high conductivity. The absence of surface layer on the positive electrode and only a thin lithium dithionite surface layer on the negative electrode allow high current densities. The electrolyte is stable at potentials >4 V and is highly suitable for lithium battery cells. Lithium/lithium cobalt oxide cells with inorganic electrolyte show outstanding electrochemical properties during cycling and are stable against overcharging or deep discharging.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 2
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