237
Electrochemical Supercapacitor Design, Fabrication, and Operation
TABLE 5.3 (CONTINUED)
Patent Survey of Electrolyte Developments for Use in Electrochemical Capacitors
U.S. Patent No. (Date)
Author/Assignee
Electrolyte Materials
6
20080045615 (12/08/2005)
Polymer electrolyte is composed of polymer having ion
Best, Adam S.; Viale,
exchangeable functional groups. The polymer consists
Sebastien M. J.; Picken,
of ionic liquid functional groups claimed to increase
Stephen J./Dutch Polymer
ion conduction at elevated temperatures and can be
Institute
derivative of pyridinium, imidazolium, and alkylammonium. Ion exchange functional groups include
polymer-bound anionic groups such as sulfonates,
carboxylates, and phosphonates.
7
20040214078 (10/27/2004)
Electrolyte is created with proton-conducting
Mitani, Masaya; Nobuta,
compounds such as polyaniline, quinone, and
Tomoki; Kamisuki,
benzoquinone for both the anode and cathode. The
Hiroyuki; Yoshinari,
electrolytic solution consists of a polymeric compound
Tetsuya/NEC Tokin
having an atom with an unpaired electron in the
Corporation, Japan
principal chain and an acid. Examples of polymeric
compounds are methylene oxide, ethylene oxide, and
propylene oxide that may be substituted by a
hydroxide group.
8
7070706 (07/04/2006)
Polymer electrolyte is composed of polymer substrate
Chu, Po-jen; Chiang,
and metal salt. Possible polymer substrates include
Chin-yeh/National
polyethylene oxide, polyvinylidene fluoride,
Central University, Taiwan
poly(methyl methacrylate), polyvinylidene chloride,
and polyacrylonitrile. Examples of cations of metal salt
are Li, Na, K, and Mg. Possible anions are BF 4 , SCN,
SO 3 CF 3 , AsF 6 , PF 6 , and N(CF 3 SO 3 ). An inorganic
modifier such as nanoparticle TiO 2 can be added to
increase mechanical properties of supercapacitor. Mass
is divided so that polymer substrate is 30 to 90 wt%,
metal salt is to 2 to 30 wt%, and nanotube modifier is 3
to 30 wt%.
9
20040106041 (06/03/2004)
Molten salt with 1-ethyl-3-methyl-1-H-imidazolium
Reynolds, John R.; Zong,
cation is used in electrolyte solution to increase charge
Kyukwan; Stenger-Smith,
and discharge speeds, operating up to 300°C and 4.3 V.
John D.; Anderson, Nicole;
Webber, Cynthia K.;
Chafin, Andrew P./
Secretary of the Navy
representing U.S.
(continued)
Electrochemical Supercapacitor Design, Fabrication, and Operation
TABLE 5.3 (CONTINUED)
Patent Survey of Electrolyte Developments for Use in Electrochemical Capacitors
U.S. Patent No. (Date)
Author/Assignee
Electrolyte Materials
6
20080045615 (12/08/2005)
Polymer electrolyte is composed of polymer having ion
Best, Adam S.; Viale,
exchangeable functional groups. The polymer consists
Sebastien M. J.; Picken,
of ionic liquid functional groups claimed to increase
Stephen J./Dutch Polymer
ion conduction at elevated temperatures and can be
Institute
derivative of pyridinium, imidazolium, and alkylammonium. Ion exchange functional groups include
polymer-bound anionic groups such as sulfonates,
carboxylates, and phosphonates.
7
20040214078 (10/27/2004)
Electrolyte is created with proton-conducting
Mitani, Masaya; Nobuta,
compounds such as polyaniline, quinone, and
Tomoki; Kamisuki,
benzoquinone for both the anode and cathode. The
Hiroyuki; Yoshinari,
electrolytic solution consists of a polymeric compound
Tetsuya/NEC Tokin
having an atom with an unpaired electron in the
Corporation, Japan
principal chain and an acid. Examples of polymeric
compounds are methylene oxide, ethylene oxide, and
propylene oxide that may be substituted by a
hydroxide group.
8
7070706 (07/04/2006)
Polymer electrolyte is composed of polymer substrate
Chu, Po-jen; Chiang,
and metal salt. Possible polymer substrates include
Chin-yeh/National
polyethylene oxide, polyvinylidene fluoride,
Central University, Taiwan
poly(methyl methacrylate), polyvinylidene chloride,
and polyacrylonitrile. Examples of cations of metal salt
are Li, Na, K, and Mg. Possible anions are BF 4 , SCN,
SO 3 CF 3 , AsF 6 , PF 6 , and N(CF 3 SO 3 ). An inorganic
modifier such as nanoparticle TiO 2 can be added to
increase mechanical properties of supercapacitor. Mass
is divided so that polymer substrate is 30 to 90 wt%,
metal salt is to 2 to 30 wt%, and nanotube modifier is 3
to 30 wt%.
9
20040106041 (06/03/2004)
Molten salt with 1-ethyl-3-methyl-1-H-imidazolium
Reynolds, John R.; Zong,
cation is used in electrolyte solution to increase charge
Kyukwan; Stenger-Smith,
and discharge speeds, operating up to 300°C and 4.3 V.
John D.; Anderson, Nicole;
Webber, Cynthia K.;
Chafin, Andrew P./
Secretary of the Navy
representing U.S.
(continued)