Polymeric electrolyte and lithium battery employing the same

Details Polymeric electrolyte and lithium battery employing the same Polymeric electrolyte and lithium battery employing the same

2005-03-15

2005-03-15

Weiner, Laura (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S317000, C429S322000, C429S323000, C429S338000, C429S342000, C429S249000, C429S232000, C429S233000, C252S062200, C524S589000, C524S590000

Reexamination Certificate

active

06866965

ABSTRACT:
A polymeric electrolyte and a lithium battery lithium employing the same. The polymeric electrolyte includes a cross-linked polyether urethane prepared by reacting a pre-polymer having a polyethylene oxide backbone and terminated with NCO, with a cross-linking agent, organic solvent and lithium salt. Since the polymeric electrolyte is electrochemically stable, a lithium battery having improved reliability and safety can be obtained by employing the polymeric electrolyte.

REFERENCES:
patent: 4065587 (1977-12-01), Ting
patent: 5985419 (1999-11-01), Schlueter et al.
patent: 6077897 (2000-06-01), Wen et al.
patent: 6159639 (2000-12-01), Wen et al.
patent: 56-95934 (1981-08-01), None
patent: 4-112460 (1992-04-01), None
Le Nest et al. “Mechanism of Ionic Conduction in Polyether-Polyurethane Networks Containing Lithium Perchlorate”., Journal of Power Sources, 20, (1987), pp. 339-344.*
Kim et al. “Synthesis and Characterization of Polyether Urethane Acrylate-LiCF3SO3-based Polymer Electrolytes by UV-Curing in Lithium Batteries”, Journal of Power Sources, 84, (1999), pp. 12-23.

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