WO2005106906A1 - 電気二重層キャパシタの非水電解液用添加剤、電気二重層キャパシタ用非水電解液及び非水電解液電気二重層キャパシタ - Google Patents
電気二重層キャパシタの非水電解液用添加剤、電気二重層キャパシタ用非水電解液及び非水電解液電気二重層キャパシタ Download PDFInfo
- Publication number
- WO2005106906A1 WO2005106906A1 PCT/JP2005/005915 JP2005005915W WO2005106906A1 WO 2005106906 A1 WO2005106906 A1 WO 2005106906A1 JP 2005005915 W JP2005005915 W JP 2005005915W WO 2005106906 A1 WO2005106906 A1 WO 2005106906A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- double layer
- electric double
- layer capacitor
- aqueous electrolyte
- combustion
- Prior art date
Links
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 121
- 239000003990 capacitor Substances 0.000 title claims abstract description 106
- 239000000654 additive Substances 0.000 title claims abstract description 38
- 230000000996 additive effect Effects 0.000 title claims abstract description 37
- 238000002485 combustion reaction Methods 0.000 claims abstract description 75
- 150000001875 compounds Chemical class 0.000 claims abstract description 53
- -1 phosphine oxide compound Chemical class 0.000 claims abstract description 40
- 239000000126 substance Substances 0.000 claims description 66
- 229910052731 fluorine Inorganic materials 0.000 claims description 38
- 239000011737 fluorine Substances 0.000 claims description 38
- 125000003277 amino group Chemical group 0.000 claims description 22
- 229910052736 halogen Inorganic materials 0.000 claims description 14
- 150000002367 halogens Chemical class 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 13
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 13
- 239000008151 electrolyte solution Substances 0.000 claims description 13
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical group P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 claims description 13
- 150000003839 salts Chemical class 0.000 claims description 13
- 239000003960 organic solvent Substances 0.000 claims description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims description 10
- 239000011574 phosphorus Substances 0.000 claims description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- 125000001424 substituent group Chemical group 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 6
- 230000002401 inhibitory effect Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 6
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 18
- 239000003792 electrolyte Substances 0.000 description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 8
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 239000002033 PVDF binder Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical class [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 5
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 4
- 229910052794 bromium Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000006230 acetylene black Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000006258 conductive agent Substances 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 125000001153 fluoro group Chemical group F* 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229940126062 Compound A Drugs 0.000 description 2
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 2
- 150000001450 anions Chemical group 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000004063 butyryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229920006015 heat resistant resin Polymers 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 2
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 125000003774 valeryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 1
- WXSIQKMFCCUZFJ-UHFFFAOYSA-N 1-[ethoxy(fluoro)phosphoryl]oxyethane Chemical compound CCOP(F)(=O)OCC WXSIQKMFCCUZFJ-UHFFFAOYSA-N 0.000 description 1
- CNDDYKSDJBKASR-UHFFFAOYSA-N 1-difluorophosphoryloxyethane Chemical compound CCOP(F)(F)=O CNDDYKSDJBKASR-UHFFFAOYSA-N 0.000 description 1
- 241000531908 Aramides Species 0.000 description 1
- PKPBCVSCCPTDIU-UHFFFAOYSA-N B.P Chemical class B.P PKPBCVSCCPTDIU-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- XCTATYNREGBPBO-UHFFFAOYSA-N [fluoro(methoxy)phosphoryl]oxymethane Chemical compound COP(F)(=O)OC XCTATYNREGBPBO-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- UORVGPXVDQYIDP-BJUDXGSMSA-N borane Chemical class [10BH3] UORVGPXVDQYIDP-BJUDXGSMSA-N 0.000 description 1
- HFNQLYDPNAZRCH-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O.OC(O)=O HFNQLYDPNAZRCH-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- SHUNMBRGCMDSSQ-UHFFFAOYSA-N ctk0h9834 Chemical compound NP(N)(F)=O SHUNMBRGCMDSSQ-UHFFFAOYSA-N 0.000 description 1
- DMSZORWOGDLWGN-UHFFFAOYSA-N ctk1a3526 Chemical compound NP(N)(N)=O DMSZORWOGDLWGN-UHFFFAOYSA-N 0.000 description 1
- ZQBJYMGLPSURKJ-UHFFFAOYSA-N diaminophosphorylmethane Chemical compound CP(N)(N)=O ZQBJYMGLPSURKJ-UHFFFAOYSA-N 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- 150000002170 ethers Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- LEGMSOILNHRRRA-UHFFFAOYSA-N fluoro(dimethyl)phosphane Chemical compound CP(C)F LEGMSOILNHRRRA-UHFFFAOYSA-N 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical compound CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 1
- GRHRIJYRDMAPNG-UHFFFAOYSA-N n-fluoromethanamine Chemical compound CNF GRHRIJYRDMAPNG-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000011356 non-aqueous organic solvent Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- FFUQCRZBKUBHQT-UHFFFAOYSA-N phosphoryl fluoride Chemical compound FP(F)(F)=O FFUQCRZBKUBHQT-UHFFFAOYSA-N 0.000 description 1
- 229920003192 poly(bis maleimide) Polymers 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
- H01G11/64—Liquid electrolytes characterised by additives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Definitions
- Non-aqueous electrolyte additive for electric double layer capacitor non-aqueous electrolyte and non-aqueous electrolyte electric double layer capacitor for electric double layer capacitor
- the present invention relates to an additive for a non-aqueous electrolyte of an electric double layer capacitor, a non-aqueous electrolyte for an electric double layer capacitor containing the additive, and a non-aqueous electrolyte electric double layer provided with the non-aqueous electrolyte.
- the present invention relates to a capacitor, and more particularly to a non-aqueous electrolyte additive for an electric double layer capacitor having an excellent combustion suppressing effect.
- An electric double layer capacitor is a capacitor using an electric double layer formed between an electrode and an electrolyte, and a cycle in which an electrolyte force also electrically adsorbs ions on an electrode surface is a charge / discharge cycle.
- the cycle of the oxidation-reduction reaction involving mass transfer is different from that of the battery, which is a charge / discharge cycle.
- the electric double layer capacitor has excellent instantaneous charge / discharge characteristics as compared with a battery and does not involve a chemical reaction. Therefore, even if charge / discharge is repeated, the instant charge / discharge characteristics hardly deteriorate.
- the battery since there is no charge / discharge overvoltage at the time of charge / discharge, a simple and inexpensive electric circuit is sufficient.
- the battery has many advantages compared to batteries, such as having a durable temperature characteristic over a wide temperature range of -30 to 90 ° C where the remaining capacity is easy to control, and being non-polluting. In recent years, it has been spotlighted as a new energy storage product that is environmentally friendly. Further, since the electric double layer capacitor has the above-mentioned characteristics, it has come into the spotlight as a power source for regenerating energy or starting an engine of an electric vehicle, a fuel cell vehicle, or a hybrid electric vehicle.
- the electric double layer capacitor is an energy storage device having positive and negative electrodes and an electrolyte. At the contact interface between the electrode and the electrolyte, positive and negative charges oppose each other at an extremely short distance. They are arranged to form an electric double layer. Therefore, the electrolyte plays an important role as an ion source for forming the electric double layer, and thus is an important substance that affects the basic characteristics of the electric double layer capacitor, like the electrode.
- the electrolyte an aqueous electrolyte, a non-aqueous electrolyte, a solid electrolyte and the like are conventionally known.
- non-aqueous electrolytes that can set a high operating voltage have been particularly spotlighted and are being put to practical use.
- the non-aqueous electrolyte include (C)) P'BF, and non-aqueous organic solvents having a high dielectric constant such as carbonate carbonate (ethylene carbonate, propylene carbonate, etc.), ⁇ -petit rataton and the like.
- C ⁇ Dissolve solutes (supporting salts) such as N'BF
- the mixed solution is put to practical use.
- the aprotic organic solvent has a low flash point, there is a high risk of ignition when, for example, the electric double layer capacitor ignites due to heat generation or the like.
- the non-protonic organic solvent is vaporized and decomposed to generate gas as the electric double layer capacitor generates heat, and the generated gas and heat cause the electric double layer capacitor to rupture and ignite. There is also a high risk of losing.
- An object of the present invention is to provide a non-aqueous electrolyte electric double layer capacitor.
- the present inventor has conducted intensive studies to achieve the above object, and as a result, a combustion suppressing substance having a specific structure has an excellent combustion suppressing effect, and is capable of releasing a powerful combustion suppressing substance. It has been found that the safety of the nonaqueous electrolyte and the nonaqueous electrolyte electric double layer capacitor including the nonaqueous electrolyte can be significantly improved by adding the inhibitory substance releasing compound to the nonaqueous electrolyte, thereby completing the present invention. It led to.
- the additive for a non-aqueous electrolyte of an electric double layer capacitor of the present invention contains a compound that releases a combustion-suppressing substance during combustion, and the combustion-suppressing substance contains PF in a molecule.
- the combustion suppressing substance is at least one of a self-extinguishing substance, a flame retardant substance, and a nonflammable substance. It is misplaced.
- the phosphine oxide compound is represented by the following formula (I):
- R 1 is each independently a monovalent substituent or a halogen element, and at least one R 1 is a fluorine or amino group).
- R 1 in the formula (I) is independently selected from the group consisting of a fluorine, an amino group, an alkyl group, and an alkoxy group, and at least one R 1 is a fluorine or an amino group. More preferred.
- a phosphine oxide conjugate wherein at least one of R 1 in the formula (I) is fluorine and at least one of R 1 in the formula (I) is an amino group, and a compound represented by the formula (I) Particularly preferred are phosphine oxide conjugates in which two or more of R 1 are fluorine or amino groups.
- the compound for releasing a combustion suppressing substance contains phosphorus, fluorine, Z or nitrogen in a molecule.
- the compound for releasing a combustion suppressing substance has a phosphorus-nitrogen bond in a molecule.
- the compound for releasing a combustion suppressing substance has a phosphorus-fluorine bond in the molecule.
- a preferred example of the powerful compound for releasing a combustion suppressing substance is a phosphorane compound.
- the nonaqueous electrolyte for an electric double layer capacitor of the present invention is characterized by containing the additive for a nonaqueous electrolyte of the electric double layer capacitor and a supporting salt.
- the non-aqueous electrolyte for an electric double layer capacitor of the present invention preferably further contains an aprotic organic solvent.
- the aprotic organic solvent is preferably a nitrile compound, a cyclic or chain esterified compound, or a chain etherified compound.
- the non-aqueous electrolyte for an electric double layer capacitor of the present invention is preferably capable of releasing at least 0.03 mol of a combustion suppressing substance per liter of the non-aqueous electrolyte for an electric double layer capacitor during combustion.
- the nonaqueous electrolytic solution for an electric double layer capacitor of the present invention preferably contains 3% by volume or more, more preferably 5% by volume or more, of the above-mentioned compound for releasing a combustion suppressing substance.
- a nonaqueous electrolyte electric double layer capacitor of the present invention includes the above nonaqueous electrolyte for an electric double layer capacitor, a positive electrode, and a negative electrode.
- a combustion-suppressing substance releasing compound that releases a phosphine oxide conjugate having a PF bond and a Z or P-NH bond in a molecule as a combustion suppressing substance during combustion.
- the additive for a non-aqueous electrolyte of the electric double layer capacitor of the present invention contains a compound for releasing a combustion suppressing substance that releases a combustion suppressing substance at the time of combustion, and the combustion suppressing substance contains a PF bond and Z or P in its molecule.
- a phosphine oxide compound with NH bond To be a phosphine oxide compound with NH bond
- Phosphine oxide compounds having a PF bond and a Z or P-NH bond in the molecule are usually included in the electrolyte.
- the flammability of the nonaqueous electrolyte can be significantly suppressed.
- the combustion-suppressing substance is not particularly limited as long as it can suppress the combustion of a flame ignited in the non-aqueous electrolyte at the time of combustion. That is, a self-extinguishing substance, a flame retardant substance, or a nonflammable substance is preferable.
- the self-extinguishing properties, flame retardancy and non-flammability are defined by a method based on the UL (Underwriting Laboratory) standard UL94HB method.
- the above-mentioned combustion suppressing substance is a phosphine having a PF bond and a Z or P-NH bond in a molecule.
- R 1 is each independently a monovalent substituent or a halogen element, and at least one R 1 is a fluorine or amino group.
- R 1 is a monovalent substituent or a halogen element, and at least one R 1 is a fluorine or amino group.
- the halogen element fluorine, chlorine, bromine and the like are preferably exemplified, and among these, fluorine is particularly preferred.
- the monovalent substituent include an amino group, an alkoxy group, an alkyl group, a carboxyl group, an acyl group, an aryl group, and the like.
- an amino group is preferred in terms of excellent properties.
- the alkoxy group include a methoxy group, an ethoxy group, a methoxyethoxy group, a propoxy group, and a phenoxy group.
- the alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, and a pentyl group.
- the acetyl group include a formyl group, an acetyl group, a propioyl group, a butyryl group, an isobutyryl group, and a valeryl group.
- the hydrogen element in these monovalent substituents is preferably substituted with a halogen element.
- the halogen element fluorine, chlorine, bromine and the like are preferred, and fluorine is most preferred, followed by chlorine. Is preferred.
- the phosphine oxide compound it is preferable that 10% by mass or more of the molecule is a halogen element, and it is more preferable that 15% by mass or more of the molecule is a halogen element. Further, the phosphine oxide compound is preferably such that at least 7% by mass of the molecule is fluorine, and more preferably at least 10% by mass of the molecule is fluorine.
- the phosphine oxide conjugate in which 10% by mass or more of the molecule is a halogen element has an excellent effect of suppressing the combustion of the nonaqueous electrolyte
- the phosphine oxide compound in which 7% by mass or more of the molecule is fluorine is It is particularly excellent in the effect of suppressing the combustion of the non-aqueous electrolyte.
- Examples of the phosphine oxide compound, at least one fluorine of R 1 in formula (I), and at least one of phosphine oxide I ⁇ compound is an amino group of R 1 in formula (I), parallel And a phosphine oxide in which two or more of R 1 in the formula (I) are a fluorine or amino group.
- Compounds are particularly preferred. Since these phosphine oxide compounds have a high ratio of fluorine and amino groups in the molecule that contribute to the suppression of the combustion of the electrolytic solution, they have an excellent combustion suppression effect.
- Phosphine oxide [0 PF NH]
- diaminofluorophosphine oxide [0 PF (
- Mouth phosphine oxide [0 PF (NH) CH], dimethoxyfluorophosphine oxide [
- the combustion-inhibiting substance releasing compound used in the additive for a non-aqueous electrolyte of the electric double layer capacitor of the present invention is not particularly limited as long as the above-mentioned combustion-inhibiting substance can be released at the time of combustion. Other combustion suppressors may be released.
- "when burning" is not particularly limited as long as the above-mentioned combustion-inhibiting substance can be released at the time of combustion.
- Other combustion suppressors may be released.
- a combustion-suppressing substance a compound containing phosphorus and fluorine and Z or nitrogen in a molecule is preferable in that the above-mentioned combustion-suppressing substance can be suitably released.
- the compound for releasing a combustion-suppressing substance contains phosphorus and fluorine in its molecule
- the action of fluorine radicals generated during combustion in addition to the above-mentioned combustion-suppressing substance makes it possible to more effectively combust the electrolyte solution. It is thought that can be suppressed.
- the content of the fluorine in the combustion-inhibiting substance releasing compound is preferably in the range of 2 to 80% by mass, more preferably in the range of 2 to 60% by mass, and still more preferably in the range of 2 to 50% by mass.
- the effect of suppressing the flammability of the electrolytic solution is small if the fluorine content of the compound that releases the combustion suppressing substance is less than 2% by mass. If it exceeds 80% by mass, the viscosity increases and the conductivity of the electrolytic solution decreases. Sometimes.
- a phosphine oxide compound having a P—N H bond in the molecule can be suitably released as a combustion-suppressing substance, and therefore, a phosphorus compound is contained in the molecule.
- Compounds having a nitrogen bond are preferred. Where the molecule has a phosphorus-nitrogen bond Examples of the compound include a phosphorane conjugate in which an amino group is directly bonded to phosphorus in the molecule.
- a compound having a phosphorus-fluorine bond in the molecule can be preferably released as a phosphine oxide conjugate having a PF bond in the molecule as a combustion-suppressing substance.
- Compounds having a phosphorus-fluorine bond in the molecule include phosphine compounds, cyclophosphine compounds, phosphine oxide compounds, cyclophosphine oxide compounds, phosphine borane compounds, silaphosphane compounds, phosphoalkoxycyclosilazane compounds, phosphoxide borane compounds, and the like.
- phosphorus-containing conjugates such as phosphorane conjugates, in which fluorine is directly bonded to phosphorus in the molecule, and among these, fluorine is directly bonded to phosphorus in the molecule.
- Phosphorane compounds are preferred.
- R 2 is a monovalent substituent or a halogen element
- R 3 and R 4 are a monovalent substituent, a halogen element or hydrogen
- R 2 , R 3 and R 4 At least one of which is a fluorine or amino group, and ⁇ is an amine derivative
- the halogen element preferably includes fluorine, chlorine, bromine and the like, and among these, fluorine is particularly preferable.
- examples of the monovalent substituent for R 2 , R 3, and the like include an amino group, an alkoxy group, an alkyl group, a carboxyl group, an acyl group, an aryl group, and the like. Amino groups are preferred because of their excellent effect of reducing the risk of ignition.
- examples of the alkoxy group include a methoxy group, an ethoxy group, a methoxyethoxy group, a propoxy group, and a phenoxy group.
- alkyl group examples include a methyl group, an ethyl group, a propyl group, a butyl group, and a pentyl group.
- examples of the acetyl group include a formyl group, an acetyl group, a propioyl group, a butyryl group, an isoptyryl group, and the like.
- a valeryl group and the like are mentioned, and the aryl group is a phenyl group, a tolyl group, a naphthyl group and the like.
- the hydrogen element in these monovalent substituents is preferably substituted with a halogen element.
- the halogen element fluorine, chlorine, bromine and the like are preferably mentioned, and fluorine is most preferred, and then chlorine is preferred. Is preferred.
- the phosphorane compound in which at least one of R 2 , R 3 and R 4 is fluorine has a PF bond in the molecule, and has a PF bond in the molecule as a combustion-suppressing substance during combustion.
- the phosphine oxide conjugate can be suitably released.
- the phosphorane-conjugated compound in which at least one of R 2 , R 3 and R 4 is an amino group has a P—NH bond in the molecule
- Phosphine oxide compounds having a P--NH bond in the molecule are preferred as combustion suppressants.
- the additive for a non-aqueous electrolyte of the present invention may contain, in addition to the above-described compound for releasing a combustion suppressing substance, any additive as long as the effect of suppressing the combustion of the electrolyte is not hindered.
- the content of the compound for releasing a combustion suppressing substance in the additive for a non-aqueous electrolyte is appropriately selected according to the content of the compound for releasing a combustion suppressing substance in a non-aqueous electrolyte described later.
- the non-aqueous electrolyte for an electric double layer capacitor of the present invention contains the above-described additive for a non-aqueous electrolyte and a supporting salt, and may contain an aprotic organic solvent or the like as necessary.
- the supporting salt used for the non-aqueous electrolyte for an electric double layer capacitor of the present invention can be selected from conventionally known electrolytes.
- the salt is preferred.
- the quaternary ammonium salt is a solute that plays a role as an ion source for forming an electric double layer in a non-aqueous electrolyte, and effectively improves the electrical properties of the electrolyte such as electric conductivity. Quaternary ammonium salts, which can form multivalent ions, are preferred because they can be improved.
- Examples of the quaternary ammonium salts include (CH) N-BF, (CH) CHN-BF, (C
- quaternary ammonium salts in which different alkyl groups are bonded to N atoms are preferable because solubility can be improved by increasing the polarizability.
- compounds represented by the following formulas (a) to (j) are also preferable.
- Me represents a methyl group
- Et represents an ethyl group.
- the concentration of the supporting salt in the non-aqueous electrolyte for an electric double layer capacitor of the present invention is more preferably from 0.2 to 2.5 mol / L (M), more preferably from 0.8 to 1.5 mol / L (M). If the concentration of the supporting salt is less than 0.2 mol / L, the electrical properties such as the electrical conductivity of the electrolyte may not be sufficiently secured! / ⁇ . If the concentration exceeds 2.5 mol / L, the viscosity of the electrolyte may increase. In some cases, electrical characteristics such as electrical conductivity may decrease.
- the aprotic organic solvent that can be used in the non-aqueous electrolyte of the present invention can reduce the viscosity of the electrolyte and easily achieve optimal ionic conductivity as an electric double layer capacitor.
- -tolyl compounds such as acetonitrile (AN), propiono-tolyl, butymouth-tolyl, isobutymouth-tolyl, and benzo-tolyl; 1,2-dimethoxyethane (DME ), Ether compounds such as tetrahydrofuran (THF); dimethyl carbonate (DMC), getyl carbonate (DEC), ethyl methyl carbonate (EMC), ethylene carbonate (EC), propylene carbonate (PC), diphenyl carbonate, y
- ester compounds such as -butyral ratatone (GBL) and y-valerolatatatone.
- the cyclic ester compound has a high relative dielectric constant and is excellent in dissolving ability of the supporting salt, and the chain esterified compound and the etherified compound have a low viscosity, so that the low viscosity of the electrolytic solution is low. It is suitable in terms of conversion. These may be used alone or in combination of two or more.
- the non-aqueous electrolyte for an electric double layer capacitor of the present invention preferably releases 0.05 to 0.5 mol of the above-mentioned combustion suppressing substance per liter of the non-aqueous electrolyte during combustion. More preferred. If the amount of the combustion suppressing substance released during combustion is less than 0.03 mol per liter of the nonaqueous electrolyte, the flammability of the nonaqueous electrolyte may not be sufficiently suppressed.
- the content of the compound for releasing a combustion-inhibiting substance in the nonaqueous electrolyte for an electric double layer capacitor of the present invention is preferably 3% by volume or more, more preferably 5% by volume or more. No.
- the content of the above-mentioned compound for releasing a combustion suppressing substance in the non-aqueous electrolyte is 3 ⁇ 4vol% or more, the danger of ignition and ignition of the non-aqueous electrolyte can be sufficiently suppressed.
- the non-aqueous electrolyte for an electric double layer capacitor of the present invention may contain only one kind of the above-mentioned compound for releasing a combustion suppressing substance, or may contain two or more kinds thereof.
- a non-aqueous electrolyte electric double layer capacitor of the present invention includes the above-described non-aqueous electrolyte for an electric double layer capacitor, a positive electrode, and a negative electrode, and if necessary, a technical field of an electric double layer capacitor such as a separator. And other members commonly used in.
- the positive electrode and the negative electrode of the non-aqueous electrolyte electric double layer capacitor of the present invention are not particularly limited, but usually a porous carbon-based polarizable electrode is preferable.
- the electrode is preferably an electrode having a large specific surface area and a large specific gravity, being electrochemically inert, and having characteristics such as low resistance.
- activated carbon and the like are mentioned as the porous carbon.
- the electrode generally contains porous carbon such as activated carbon, and, if necessary, other components such as a conductive agent and a binder.
- the raw material of activated carbon that can be suitably used for the electrode is not particularly limited.
- various heat-resistant resins, pitch, and the like are preferably mentioned.
- the heat resistant resin for example, polyimide, polyamide, polyamide imide, polyether imide, polyether sulfone, polyether ketone, bismaleimide triazine, aramide, fluorine resin, polyphenylene, polyphenylene sulfide and the like are preferably mentioned.
- Can be These may be used alone or in combination of two or more.
- the form of the activated carbon is preferably in the form of powder, fiber cloth, or the like from the viewpoint of increasing the specific surface area and increasing the charge capacity of the nonaqueous electrolyte electric double layer capacitor. Further, these activated carbons may be subjected to treatments such as heat treatment, stretch forming, vacuum high temperature treatment, and rolling in order to further increase the charge capacity of the electric double layer capacitor.
- the conductive agent used for the electrode is not particularly limited, and examples thereof include graphite and acetylene black.
- the binder used for the electrode is not particularly limited, but includes polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), styrene'butadiene rubber (SBR), carboxymethyl cellulose (CMC ) And the like. These additives can be used at the same compounding ratio as in the past.
- the non-aqueous electrolyte electric double layer capacitor of the present invention preferably includes a separator, a current collector, a container, and the like in addition to the above-described electrodes (a positive electrode and a negative electrode) and a non-aqueous electrolyte.
- Known members used for the double-layer capacitor can be provided.
- Sepa The radiator is interposed between the positive and negative electrodes for the purpose of preventing short circuit of the non-aqueous electrolyte electric double layer capacitor.
- the separator there is no particular limitation, and a known separator usually used as a separator of a nonaqueous electrolyte electric double layer capacitor is preferably used.
- the material of the separator include a microporous film, a nonwoven fabric, and paper.
- a nonwoven fabric, a thin film, and the like made of a synthetic resin such as polytetrafluoroethylene, polypropylene, and polyethylene are preferably used.
- a polypropylene or polyethylene microporous film having a thickness of about 20 to 50 ⁇ m is particularly preferred.
- the above-mentioned current collector a known one which is usually used as a current collector of a nonaqueous electrolyte electric double layer capacitor without any particular limitation is suitably used.
- the current collector those having excellent electrochemical corrosion resistance, chemical corrosion resistance, workability, mechanical strength and low cost are preferable.
- current collectors of aluminum, stainless steel, conductive resin, etc. A body layer is preferred.
- the above-mentioned container a well-known container which is usually used as a container of a nonaqueous electrolyte electric double layer capacitor without any particular limitation is preferably exemplified.
- the material of the container for example, aluminum, stainless steel, conductive resin and the like are suitable.
- nonaqueous electrolyte electric double layer capacitor of the present invention known forms such as a cylinder type (cylindrical type and square type) and a flat type (coin type), which are not particularly limited, are preferably mentioned.
- Can be These non-aqueous electrolyte electric double layer capacitors are used, for example, as main power supply or auxiliary power supply for electric vehicles and fuel cell vehicles, for memory backup of various electronic devices, industrial devices, aviation devices, etc., toys, It is suitably used as an electromagnetic hold device for cordless devices, gas devices, instantaneous water heater devices, etc., and a power source for watches such as watches, wall clocks, solar clocks, and AGS watches.
- PC Propylene carbonate
- a non-aqueous electrolyte was prepared.
- the safety of the obtained non-aqueous electrolyte was evaluated by a method based on the UL94HB method of the above-mentioned UL (underwriting laboratory) standard. If the flame ignited in the test exceeded the 100 mm line, it was regarded as “flammable”. Further, the limiting oxygen index of the non-aqueous electrolyte and the amount of phosphine oxide conjugate generated during combustion were measured by the following methods. The results are shown in Table 1.
- the limiting oxygen index of the electrolytic solution was measured according to JIS K 7201. The higher the limiting oxygen index, the more difficult it is for the electrolyte to burn. Specifically, SiO
- 127mm X 12.7mm is reinforced with U-shaped aluminum to make it self-supporting
- test piece was prepared by impregnation with l.OmL of the electrolytic solution.
- the test piece was placed vertically on the test piece support, and a combustion cylinder (75 mm in diameter, 450 mm in height, and 4 mm in diameter were filled with glass grains evenly from the bottom to a thickness of 100 ⁇ 5 mm, and a metal net was placed thereon.
- a combustion cylinder 75 mm in diameter, 450 mm in height, and 4 mm in diameter were filled with glass grains evenly from the bottom to a thickness of 100 ⁇ 5 mm, and a metal net was placed thereon.
- oxygen CFIS K 1101 or equivalent oxygen CFIS K 1101 or equivalent
- nitrogen JIS K 1107 Class 2 or equivalent
- the electrolyte impregnated in the non-combustible quartz sheet ignites at a flame temperature of 800 ° C, and the generated gas is adsorbed on a gas collection tube (filled with TenaxTA) and TDS- It was analyzed by GC-MS.
- the GC used a DB-5 column (column length: 30 m, inner diameter: 0.25 mm, film thickness: 0.25 ⁇ m), and the column temperature was 40 to 300 ° C (heating rate: 25 ° C / min).
- the measured mass range was 5 to 500.
- activated carbon [AC, trade name: Kuractive-1500, manufactured by Kuraray Chemical Co., Ltd.], acetylene black (conductive agent), and polyvinylidene fluoride (PVDF) (binder) were added at the mass ratio (active).
- AC activated carbon
- acetylene black conductive agent
- PVDF polyvinylidene fluoride
- Binder polyvinylidene fluoride
- 100 mg of the resulting mixture was collected, placed in a 20 mm ⁇ pressure-resistant carbon container, and compacted under a pressure of 150 kgf / cm 2 at room temperature to produce a positive electrode and a negative electrode (electrode).
- a cell was assembled using the obtained electrodes (positive electrode and negative electrode), an aluminum metal plate (current collector) (thickness: 0.5 mm), and a polypropylene Z polyethylene plate (separator) (thickness: 25 ⁇ m). It was sufficiently dried by vacuum drying. The cell was impregnated with the above non-aqueous electrolyte to prepare a non-aqueous electrolyte electric double layer capacitor. The electric conductivity, cycle characteristics and low-temperature characteristics of the obtained electric double layer capacitor were tested by the following methods. Table 1 shows the results.
- An electric conductivity was measured using a conductivity meter [trade name: CDM210, manufactured by Radiometer Trading Co., Ltd.] while applying a constant current of 5 mA to the obtained electric double layer capacitor.
- the capacitance was measured at the initial stage and after 1000 cycles of charging and discharging, and the capacity retention rate after 1000 cycles was calculated to evaluate the cycle characteristics.
- the internal resistance of the obtained non-aqueous electrolyte electric double layer capacitor was measured at 20 ° C and -10 ° C, respectively, and the low-temperature characteristics of the capacitor were evaluated.
- the internal resistance ( ⁇ ) is measured by a known method of measuring internal resistance, for example, by measuring a charge / discharge curve. At this time, the potential fluctuation width accompanying a charge stop (Charge Rest) or a discharge stop (Discharge Rest) is determined. Obtained by the method of measurement.
- a non-aqueous electrolyte was prepared in the same manner as in Example 1 except that the phosphorane conjugate B represented by the following formula was used, and the safety of the non-aqueous electrolyte and the amount of phosphine oxide compound generated were evaluated and measured. Further, an electric double layer capacitor was produced using the non-aqueous electrolyte in the same manner as in Example 1, and the performance of the capacitor was evaluated. Table 1 shows the results.
- Example 1 Was prepared and evaluated in the same manner as in Example 1. Further, an electric double layer capacitor was produced using the nonaqueous electrolyte in the same manner as in Example 1 and evaluated. The results are shown in Table 1.
- a phosphine oxide compound having a PF bond and a Z or P-NH bond in a molecule is generated during combustion of the nonaqueous electrolyte, and the flammability of the nonaqueous electrolyte is suppressed.
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- Chemical Kinetics & Catalysis (AREA)
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/568,035 US7820065B2 (en) | 2004-04-27 | 2005-03-29 | Additive for non-aqueous electrolyte of electric double layer capacitor, non-aqueous electrolyte for electric double layer capacitor and non-aqueous electrolyte electric double layer capacitor |
EP05727861A EP1742237B1 (en) | 2004-04-27 | 2005-03-29 | Additive for non-aqueous electrolyte solution of electric double layer capacitor, non-aqueous electrolyte solution for electric double layer capacitor and non-aqueous electrolyte solution electric double layer capacitor |
JP2006512735A JPWO2005106906A1 (ja) | 2004-04-27 | 2005-03-29 | 電気二重層キャパシタの非水電解液用添加剤、電気二重層キャパシタ用非水電解液及び非水電解液電気二重層キャパシタ |
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JP2004-131151 | 2004-04-27 | ||
JP2004131151 | 2004-04-27 | ||
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JP2004-353975 | 2004-12-07 |
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Country Status (4)
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US (1) | US7820065B2 (ja) |
EP (1) | EP1742237B1 (ja) |
JP (1) | JPWO2005106906A1 (ja) |
WO (1) | WO2005106906A1 (ja) |
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WO2023129577A1 (en) * | 2022-01-03 | 2023-07-06 | Lilac Therapeutics, Inc. | Cyclic thiol prodrugs |
Citations (4)
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JPS61208758A (ja) * | 1985-03-12 | 1986-09-17 | Hitachi Maxell Ltd | 有機電解質電池 |
JPH04206918A (ja) * | 1990-11-30 | 1992-07-28 | Mitsui Petrochem Ind Ltd | 電気二重層キャパシタ |
JP2002198090A (ja) * | 2000-12-25 | 2002-07-12 | Mitsubishi Chemicals Corp | 非水系電解液二次電池 |
WO2002082575A1 (fr) * | 2001-03-30 | 2002-10-17 | Bridgestone Corporation | Additif pour pile et condensateur electrique double couche |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11283669A (ja) * | 1998-03-31 | 1999-10-15 | Denso Corp | 難燃性電解液および非水電解液二次電池 |
JP2001338679A (ja) * | 2000-05-26 | 2001-12-07 | Asahi Glass Co Ltd | 二次電源 |
JP3422769B2 (ja) * | 2000-11-01 | 2003-06-30 | 松下電器産業株式会社 | 非水系電池用電解液およびこれを用いた二次電池 |
-
2005
- 2005-03-29 EP EP05727861A patent/EP1742237B1/en not_active Expired - Fee Related
- 2005-03-29 US US11/568,035 patent/US7820065B2/en not_active Expired - Fee Related
- 2005-03-29 JP JP2006512735A patent/JPWO2005106906A1/ja not_active Withdrawn
- 2005-03-29 WO PCT/JP2005/005915 patent/WO2005106906A1/ja not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61208758A (ja) * | 1985-03-12 | 1986-09-17 | Hitachi Maxell Ltd | 有機電解質電池 |
JPH04206918A (ja) * | 1990-11-30 | 1992-07-28 | Mitsui Petrochem Ind Ltd | 電気二重層キャパシタ |
JP2002198090A (ja) * | 2000-12-25 | 2002-07-12 | Mitsubishi Chemicals Corp | 非水系電解液二次電池 |
WO2002082575A1 (fr) * | 2001-03-30 | 2002-10-17 | Bridgestone Corporation | Additif pour pile et condensateur electrique double couche |
Non-Patent Citations (1)
Title |
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See also references of EP1742237A4 * |
Also Published As
Publication number | Publication date |
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EP1742237B1 (en) | 2012-05-23 |
JPWO2005106906A1 (ja) | 2008-03-21 |
US20090213528A1 (en) | 2009-08-27 |
EP1742237A4 (en) | 2010-05-05 |
EP1742237A1 (en) | 2007-01-10 |
US7820065B2 (en) | 2010-10-26 |
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