Method for sealing an ultracapacitor, and related articles

Patent · Tue Aug 29 00:00:00 EDT 2000

OSTI ID:873189

Day, James ^[1]; Shapiro, Andrew Philip ^[2]; Jerabek, Elihu Calvin ^[3]

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1. Scotia, NY
2. Schenectady, NY
3. Glenmont, NY

An improved process for sealing at least one ultracapacitor which includes a multi-layer structure is disclosed. The process includes the step of applying a substantial vacuum to press together an uppermost layer of the structure and a lowermost layer of the structure and to evacuate ambient gasses, wherein a sealant situated in a peripheral area between the facing surfaces of the layers forms a liquid-impermeable seal for the structure under the vacuum. In some embodiments, a press is used to apply pressure to the peripheral area on which the sealant is disposed. Usually, the ultracapacitor would be situated within an enclosable region of the press, and a collapsible membrane would be fastened over the ultracapacitor to fully enclose the region and transmit the vacuum force to the multi-layer structure. The force applied by the press itself causes the sealant to flow, thereby ensuring a complete seal upon curing of the sealant. This process can be employed to seal one ultracapacitor or a stack of at least two ultracapacitors. Another embodiment of this invention is directed to an apparatus for sealing a multi-layer ultracapacitor, comprising the elements described above.

• Research Organization: Midwest Research Institute, Kansas City, MO (United States)
• DOE Contract Number: AC36-83CH10093; ZCB-4-13032-02
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6110321
• Application Number: 08/808,410
• OSTI ID: 873189
• Country of Publication: United States
• Language: English

Related Subjects

method
sealing
ultracapacitor
related
articles
improved
process
multi-layer
structure
disclosed
step
applying
substantial
vacuum
press
uppermost
layer
lowermost
evacuate
ambient
gasses
sealant
situated
peripheral
facing
surfaces
layers
forms
liquid-impermeable
seal
embodiments
apply
pressure
disposed
enclosable
region
collapsible
membrane
fastened
enclose
transmit
force
applied
causes
flow
ensuring
complete
curing
employed
stack
ultracapacitors
embodiment
directed
apparatus
comprising
elements
described
force applied
improved process
facing surface
vacuum force
apply pressure
uppermost layer
related articles
facing surfaces
ambient gas
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