US 2015/0143680 A1 · ULTRACAPACITOR VACUUM ASSEMBLY

Abstract

A method for fabricating an EDLC includes (a) coating a porous activated carbon material onto current collector sheets to form carbon-based electrodes, (b) drying the carbon-based electrodes, (c) winding or stacking carbon-based electrodes interleaved with separator sheets to fabricate a jelly roll or prismatic electrode assembly, (d) inserting the electrode assembly into a package and forming electrical connections between the electrode assembly and package terminals, (e) filling the package with a liquid electrolyte, and (f) sealing the package. Steps (a)-(f) are performed in an atmosphere having a low moisture content. The atmosphere may be vacuum or purged with dry gas.

Claims16

Dependent claims

A method of making an ultracapacitor, comprising:

forming a carbon-based electrode comprising a layer of activated carbon disposed over a current collector, and
drying the carbon-based electrode, wherein the drying is performed in an atmosphere comprising less than 200 ppm water.

Dependencies are inferred from the claim text.

Facts

Application

14/087,761Filed 22 Nov 2013

Published

28 May 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H01G 11/32
Characterised by their material: carbon-based
H01G 11/28
Characterised by their structure, e.g. multi-layered, porosity or surface features: arranged or disposed on a current collector; Layers or phases…
H01G 11/86
Processes for the manufacture of hybrid or EDL capacitors, or components thereof: specially adapted for electrodes
H01G 13/04
Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups…:…

Ultracapacitor vacuum assembly

Life of this patent

Ultracapacitor vacuum assembly

Life of this patent

Abstract

Claims16