Propylene sulfite (PS) has been studied as a film-forming electrolyte addit
ive for use in lithium ion battery electrolytes. Even small amounts in the
order of 5 vol.% PS suppress propylene carbonate (PC) co-intercalation into
graphite. In addition, a 1 M LiClO4/PC/PS (95:5 by volume) electrolyte is
characterised by a high oxidation stability at a LiMn2O4 cathode. (C) 1999
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