US 6,697,249 B2 · Supercapacitor and a method of manufacturing such a supercapacitor

Supercapacitor and a method of manufacturing such a supercapacitor

AssigneeFOC Frankenburg Oil Company

InventorsYurii Maletin, Natalie Strizhakova, Sergey Kozachkov, Antonina Mironova, Sergey Podmogilny, Valerii Danilin, Julia Kolotilova, Volodymyz Izotov, Jan Cederström, Sergey Gordeev Konstantinovich, Julia Kukushkina Aleksandrovna, Vasilii Sokolov Vasilevitj, Alexander Kravehik Efimovitj, Anti Perkson, Mati Arulepp, Jaan Leis, Clarence L. Wallace, Jie Zheng

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Abstract

An electric double layer capacitor including at least one pair of polarizable electrodes connected to current collectors, a separator made of ion-permeable but electron-insulating material interposed between the electrodes in each pair of electrodes, and a liquid electrolyte. According to the invention the electrodes include a layer of carbon particles having a narrow distribution of nanopores therein, the pore sizes of the nanopores being adapted to fit the ion sizes of the electrolyte. The invention also relates to a method of manufacturing such a supercapacitor.

Claims18

Dependent claims

An electric double layer capacitor including at least one pair of polarizable electrodes connected to current collectors, a separator made of ion-permeable but electron-insulating material interposed between the electrodes in each pair of electrodes, and a liquid electrolyte, characterised in that the electrodes include a layer of carbon particles having a narrow distribution of nanopores therein, the pore sizes of the nanopores being adapted to fit the ion sizes of the electrolyte, and in that the carbon particles in the electrodes are produced by halogenation of particles of inorganic carbon containing compounds.

Dependencies are inferred from the claim text.

Facts

Application

10/251,870Filed 23 Sep 2002 · division

Priority

RU 0117755015 Jun 2001

Published

US 2003/0064565 A13 Apr 2003

Granted

24 Feb 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H01G 11/34
Carbon-based: characterised by carbonisation or activation of carbon
H01G 11/24
Electrodes: characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity;…
H01G 11/86
Processes for the manufacture of hybrid or EDL capacitors, or components thereof: specially adapted for electrodes
H01M 4/583
Of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures,…:…

Family

Application60/247,593Us provisional application · filed 9 Nov 2000

Application09/986,569Parent of this division · filed 9 Nov 2001

US 2003/0064565 A1Pre-grant publication · published 3 Apr 2003

US 2002/0097549 A1Published application

US 6,602,742 B2Related patent

US 6,697,249 B2This patent

From the US filing history. Foreign family members aren’t listed.