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Title: Ultracapacitor having residual water removed under vacuum

Patent ·
OSTI ID:874811
 [1];  [2];  [3]
  1. Niskayuna, NY
  2. Glenmont, NY
  3. Scotia, NY
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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

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