A fire-resistant organophosphorus gel polymer electrolyte additive for use in rechargeable lithium batteries

The development of a small-molecule organophosphorus gel polymer electrolyte additive for use in rechargeable lithium batteries is described. This organophosphorus additive is less volatile and more resistant to ignition than propylene carbonate, a well known component of gel polymer electrolytes. M...

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Bibliographic Details
Published in:Solid state ionics 2000-08, Vol.133 (3), p.171-177
Main Authors: Morford, Robert V, Kellam, E.Clay, Hofmann, Michael A, Baldwin, Richard, Allcock, Harry R
Format: Article
Language:English
Subjects:
Additive
Applied sciences
Conductivity
Exact sciences and technology
Gel polymer electrolytes
Inorganic and organomineral polymers
Lithium batteries
Physicochemistry of polymers
Properties and characterization
Propylene carbonate
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Summary:The development of a small-molecule organophosphorus gel polymer electrolyte additive for use in rechargeable lithium batteries is described. This organophosphorus additive is less volatile and more resistant to ignition than propylene carbonate, a well known component of gel polymer electrolytes. Moreover, the ionic conductivities of gels containing the organophosphorus additive at low molar concentrations (11–21%) exceed the ionic conductivities of gels containing equimolar amounts of propylene carbonate (5.3×10 −5 versus 4.8×10 −5 S/cm). At higher molar concentrations (31–52%) there is evidence of phase separation, but conductivities remain comparable to propylene carbonate systems.
ISSN:0167-2738
1872-7689
DOI:10.1016/S0167-2738(00)00741-4