Low viscosity electrolyte comprising P.sub.2 O.sub.5 for use in

Details Low viscosity electrolyte comprising P.sub.2 O.sub.5 for use in Low viscosity electrolyte comprising P.sub.2 O.sub.5 for use in

1996-12-02

1997-07-22

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429197, H01M00614

Patent

active

056502451

ABSTRACT:
The viscosity of certain non-aqueous electrolytes comprising a first lithium salt which can gel on the addition of P.sub.2 O.sub.5 can be reduced substantially by incorporating therein a small amount of a suitable viscosity reducing salt. In particular, the viscosity of a LiPF.sub.6 salt based electrolyte can be reduced by orders of magnitude by incorporating a small amount of LiBF.sub.4 therein. Such electrolytes are suitable for use in lithium ion batteries.

REFERENCES:
patent: 4675260 (1987-06-01), Sakurai et al.
patent: 5474858 (1995-12-01), Merritt
Sakurai, et al., Correlation Between Microstructure and Electrochemical Behavior of Amorphous V.sub.2 O.sub.5 -P.sub.2 O.sub.5 in Lithium Cells, J. Electrochem. Soc., vol. 135, No. 4, Apr. 1988, p. 791.
Jones, S.D., Development of a thin-film solid-state microbattery, Proc. Electrochem. Soc., 91-12 (Proc. Int. Symp. Ionic Mixed Conduct. Ceram.), 145-54 (1991) No Month (oxide sulfide glass ele).
Chowdari, B.V.R., et al., Thin Film Studies on Li.sub.2 O-P.sub.2 O.sub.5 Based Fast Ion Conducting Glasses, Solid State Ionics 40-51, p. 680-3 (1990) No Month.

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