Method of sealing an ultracapacitor substantially free of water

Patent · Tue Apr 02 00:00:00 EST 2002

OSTI ID:874315

Chapman-Irwin, Patricia ^[1]; Feist, Thomas Paul ^[2]

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1. Altamont, NY
2. Clifton Park, NY

A method of sealing an ultracapacitor substantially free of water is disclosed. The method includes providing a multilayer cell comprising two solid, non porous current collectors, separated by two porous electrodes with a separator between the two electrodes, sealing the cell with a reclosable hermetic closure. Water inside the closure is dissociated by an applied voltage to the cell and escapes in the form of hydrogen and oxygen when the closure is unmated, the closure is then mated to hermetically seal the cell which is substantially free of water.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• DOE Contract Number: AC36-83CH10093
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6364915
• Application Number: 09/625,209
• OSTI ID: 874315
• Country of Publication: United States
• Language: English

Related Subjects

method
sealing
ultracapacitor
substantially
free
water
disclosed
providing
multilayer
cell
comprising
solid
porous
current
collectors
separated
electrodes
separator
reclosable
hermetic
closure
inside
dissociated
applied
voltage
escapes
form
hydrogen
oxygen
unmated
mated
hermetically
seal
current collector
substantially free
applied voltage
/29/361/