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Title: Solid composite electrolytes for lithium batteries

Patent ·
OSTI ID:873566
 [1]
  1. Dayton, OH
+ Show Author Affiliations

Solid composite electrolytes are provided for use in lithium batteries which exhibit moderate to high ionic conductivity at ambient temperatures and low activation energies. In one embodiment, a polymer-ceramic composite electrolyte containing poly(ethylene oxide), lithium tetrafluoroborate and titanium dioxide is provided in the form of an annealed film having a room temperature conductivity of from 10.sup.-5 S cm.sup.-1 to 10.sup.-3 S cm.sup.-1 and an activation energy of about 0.5 eV.

Research Organization:
United States Air Force
DOE Contract Number:
F33615-93-C-2350
Assignee:
University of Dayton (Dayton, OH)
Patent Number(s):
US 6190806
OSTI ID:
873566
Country of Publication:
United States
Language:
English

References (6)

Polymer–ceramic composite electrolytes: conductivity and thermal history effects journal September 1999
Effect of composition and imperfections on ion transport in lithium iodine journal October 1981
Polymer nanocomposites: a new strategy for synthesizing solid electrolytes for rechargeable lithium batteries journal April 1995
Mixed phase solid electrolytes journal September 1988
Composite Polymer Electrolytes journal July 1991
Polymer-ceramic composite electrolytes journal December 1994

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Related Subjects

solid
composite
electrolytes
lithium
batteries
provided
exhibit
moderate
ionic
conductivity
ambient
temperatures
activation
energies
embodiment
polymer-ceramic
electrolyte
containing
poly
ethylene
oxide
tetrafluoroborate
titanium
dioxide
form
annealed
film
temperature
10
-5
cm
-1
-3
energy
solid composite
ionic conductivity
electrolyte containing
ceramic composite
ambient temperature
lithium batteries
titanium dioxide
activation energy
ambient temperatures
composite electrolytes
containing poly
composite electrolyte
exhibit moderate
activation energies
/429/252/