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Ultracapacitor having residual water removed under vacuum

Patent ·
OSTI ID:874811
 [1];  [2];  [3]
  1. Niskayuna, NY
  2. Glenmont, NY
  3. Scotia, NY
+ Show Author Affiliations
A multilayer cell is provided that comprises two solid, nonporous current collectors, two porous electrodes separating the current collectors, a porous separator between the electrodes and an electrolyte occupying pores in the electrodes and separator. The mutilayer cell is electrolyzed to disassociate water within the cell to oxygen gas and hydrogen gas. A vacuum is applied to the cell substantially at the same time as the electrolyzing step, to remove the oxygen gas and hydrogen gas. The cell is then sealed to form a ultracapacitor substantially free from water.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
DOE Contract Number:
AC36-83CH10093
Assignee:
General Electric Company (Niskayuna, NY)
Patent Number(s):
US 6466428
Application Number:
09/655,362
OSTI ID:
874811
Country of Publication:
United States
Language:
English

References (1)

Mobility and Ionic Association of Lithium Salts in a Propylene Carbonate-Ethyl Methyl Carbonate Mixed Solvent journal January 1995

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Related Subjects

/361/
applied
cell
collectors
current
current collector
disassociate
electrodes
electrolyte
electrolyzed
electrolyzing
form
free
gas
hydrogen
hydrogen gas
multilayer
mutilayer
nonporous
occupying
oxygen
oxygen gas
pores
porous
porous separator
provided
remove
removed
residual
sealed
separating
separator
solid
step
substantially
substantially free
time
ultracapacitor
vacuum
water