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Ultracapacitors with high frequency response

Patent ·
OSTI ID:1892692

An electric double layer capacitor (EDLC) is disclosed including: a first electrode including a first current collector and first plurality of carbon nanotubes (CNTs) disposed substantially directly upon the first current collector; a second electrode comprising a second current collector and second plurality of CNTs disposed substantially directly upon the second current collector; and an electrolyte disposed between and in contact with (e.g., wetting) the first and second electrodes. In some embodiments, the EDLC is configured to have a capacitive frequency window comprising about 1 Hz to about 50 Hz.

Research Organization:
Fastcap Systems Corporation, Boston, MA (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
DOE Contract Number:
AR0000035
Assignee:
Fastcap Systems Corporation (Boston, MA)
Patent Number(s):
11,270,850
Application Number:
15/186,534
OSTI ID:
1892692
Country of Publication:
United States
Language:
English

References (25)

Direct Growth of Single-Walled Carbon Nanotube Networks on Alumina Substrate: A Novel Route to Ultrasensitive Gas Sensor Fabrication journal November 2005
Supercapacitors Using Single-Walled Carbon Nanotube Electrodes journal April 2001
Graphene-Based Supercapacitor with an Ultrahigh Energy Density journal December 2010
Vertically aligned carbon nanotube electrodes for lithium-ion batteries journal February 2011
Realistic applications of CNTs journal October 2004
Carbon−Silicon Core−Shell Nanowires as High Capacity Electrode for Lithium Ion Batteries journal September 2009
Towards Ultrathick Battery Electrodes: Aligned Carbon Nanotube - Enabled Architecture journal December 2011
Single wall carbon nanotube paper as anode for lithium-ion battery journal October 2005
Physical and electrochemical properties of ionic liquids 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium trifluoromethanesulfonate and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide journal November 2010
Thermal degradation studies of alkyl-imidazolium salts and their application in nanocomposites journal January 2004
Electrochemical Properties of High-Power Supercapacitors Using Single-Walled Carbon Nanotube Electrodes journal October 2001
Investigation of electrochemical double-layer (ECDL) capacitors electrodes based on carbon nanotubes and activated carbon materials journal October 2003
High-power lithium batteries from functionalized carbon-nanotube electrodes journal June 2010
The oxidation of alcohols in substituted imidazolium ionic liquids using ruthenium catalysts journal February 2002
Thermal properties of imidazolium ionic liquids journal August 2000
High temperature carbon–carbon supercapacitor using ionic liquid as electrolyte journal March 2007
Application of Low-Viscosity Ionic Liquid to the Electrolyte of Double-Layer Capacitors journal January 2003
The influence of air and its components on the cathodic stability of N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide journal December 2007
High power electrochemical capacitors based on carbon nanotube electrodes journal March 1997
The nanocomposites of carbon nanotube with Sb and SnSb0.5 as Li-ion battery anodes journal January 2003
Growth of vertically aligned single-walled carbon nanotube films on quartz substrates and their optical anisotropy journal February 2004
Physical and electrochemical properties of 1-alkyl-3-methylimidazolium tetrafluoroborate for electrolyte journal April 2003
High-energy, rechargeable Li-ion battery based on carbon nanotube technology journal November 2004
Atomic Layer Deposition on Suspended Single-Walled Carbon Nanotubes via Gas-Phase Noncovalent Functionalization journal April 2006
Thermocompression bonding of vertically aligned carbon nanotube turfs to metalized substrates journal January 2009

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