JP5017800B2 - 二次電池用電解質および二次電池 - Google Patents
二次電池用電解質および二次電池 Download PDFInfo
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- JP5017800B2 JP5017800B2 JP2005140101A JP2005140101A JP5017800B2 JP 5017800 B2 JP5017800 B2 JP 5017800B2 JP 2005140101 A JP2005140101 A JP 2005140101A JP 2005140101 A JP2005140101 A JP 2005140101A JP 5017800 B2 JP5017800 B2 JP 5017800B2
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- Prior art keywords
- electrolyte
- compound
- positive electrode
- negative electrode
- secondary battery
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- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
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- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
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- 150000001408 amides Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- NFMAZVUSKIJEIH-UHFFFAOYSA-N bis(sulfanylidene)iron Chemical compound S=[Fe]=S NFMAZVUSKIJEIH-UHFFFAOYSA-N 0.000 description 1
- PWLNAUNEAKQYLH-UHFFFAOYSA-N butyric acid octyl ester Natural products CCCCCCCCOC(=O)CCC PWLNAUNEAKQYLH-UHFFFAOYSA-N 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 235000019241 carbon black Nutrition 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- CKFRRHLHAJZIIN-UHFFFAOYSA-N cobalt lithium Chemical compound [Li].[Co] CKFRRHLHAJZIIN-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
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- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 150000005676 cyclic carbonates Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 125000000422 delta-lactone group Chemical group 0.000 description 1
- DMSHWWDRAYHEBS-UHFFFAOYSA-N dihydrocoumarin Natural products C1CC(=O)OC2=C1C=C(OC)C(OC)=C2 DMSHWWDRAYHEBS-UHFFFAOYSA-N 0.000 description 1
- SMBQBQBNOXIFSF-UHFFFAOYSA-N dilithium Chemical class [Li][Li] SMBQBQBNOXIFSF-UHFFFAOYSA-N 0.000 description 1
- SXWUDUINABFBMK-UHFFFAOYSA-L dilithium;fluoro-dioxido-oxo-$l^{5}-phosphane Chemical compound [Li+].[Li+].[O-]P([O-])(F)=O SXWUDUINABFBMK-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCJHRQJSBBKOPE-UHFFFAOYSA-N ethene;trifluoromethyl hydrogen carbonate Chemical group C=C.OC(=O)OC(F)(F)F PCJHRQJSBBKOPE-UHFFFAOYSA-N 0.000 description 1
- HHEIMYAXCOIQCJ-UHFFFAOYSA-N ethyl 2,2-dimethylpropanoate Chemical compound CCOC(=O)C(C)(C)C HHEIMYAXCOIQCJ-UHFFFAOYSA-N 0.000 description 1
- 239000000374 eutectic mixture Substances 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011809 glassy carbon fiber Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910000339 iron disulfide Inorganic materials 0.000 description 1
- WDAXFOBOLVPGLV-UHFFFAOYSA-N isobutyric acid ethyl ester Natural products CCOC(=O)C(C)C WDAXFOBOLVPGLV-UHFFFAOYSA-N 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910001537 lithium tetrachloroaluminate Inorganic materials 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- MCVFFRWZNYZUIJ-UHFFFAOYSA-M lithium;trifluoromethanesulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)F MCVFFRWZNYZUIJ-UHFFFAOYSA-M 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- LGRLWUINFJPLSH-UHFFFAOYSA-N methanide Chemical compound [CH3-] LGRLWUINFJPLSH-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- VAGMFMWZIMXAGK-UHFFFAOYSA-N methyl n,n-diethylcarbamate Chemical compound CCN(CC)C(=O)OC VAGMFMWZIMXAGK-UHFFFAOYSA-N 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- MPDOUGUGIVBSGZ-UHFFFAOYSA-N n-(cyclobutylmethyl)-3-(trifluoromethyl)aniline Chemical compound FC(F)(F)C1=CC=CC(NCC2CCC2)=C1 MPDOUGUGIVBSGZ-UHFFFAOYSA-N 0.000 description 1
- UUIQMZJEGPQKFD-UHFFFAOYSA-N n-butyric acid methyl ester Natural products CCCC(=O)OC UUIQMZJEGPQKFD-UHFFFAOYSA-N 0.000 description 1
- 239000011331 needle coke Substances 0.000 description 1
- 229910021470 non-graphitizable carbon Inorganic materials 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000006253 pitch coke Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002296 pyrolytic carbon Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- CFJRPNFOLVDFMJ-UHFFFAOYSA-N titanium disulfide Chemical compound S=[Ti]=S CFJRPNFOLVDFMJ-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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- 150000003624 transition metals Chemical class 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- Y02E60/10—Energy storage using batteries
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Description
まず、正極活物質としてリチウムコバルト複合酸化物(LiCoO2 )94質量部と、導電剤としてグラファイト3質量部と、結着剤としてポリフッ化ビニリデン3質量部とを混合したのち、溶剤としてN−メチル−2−ピロリドンを添加し正極合剤スラリーを得た。次いで、得られた正極合剤スラリーを、厚み20μmのアルミニウム箔よりなる正極集電体21Aの両面に均一に塗布し乾燥させて正極活物質層21Bを形成した。正極活物質層21Bの面積密度は片面当たり40mg/cm2 とした。そののち、正極活物質層21Bが形成された正極集電体21Aを幅50mm,長さ300mmの形状に切断して正極21を作製した。
電解液に代えて、ポリビニルホルマールと、電解液とを、ポリビニルホルマール:電解液=1:99の質量比で混合溶解して作製した電解質用組成物を注入したことを除き、他は実験例1−1〜1−13と同様にして二次電池を作製した。その際、外装部材30の開放辺を熱融着により貼り合わせたのち、電池形状を一定に保つためガラス板に挟んで24時間放置することによりゲル状の電解質24を形成した。また、ポリビニルホルマールは、重量平均分子量を約50000とし、ホルマール基と水酸基とアセチル基とのモル比を、ホルマール基:水酸基:アセチル基=75.5:12.3:12.2とした。電解液は実験例1−1〜1−13と同様のものとした。
電解液に代えて、電解液100質量部に対して重合性化合物であるアクリル酸エステル溶液を5質量部の割合で混合した電解質用組成物を注入したことを除き、他は実験例1−1〜1−13と同様にして二次電池を作製した。その際、外装部材30の開放辺を熱融着により貼り合わせたのち、ガラス板に挟んで加熱し、重合性化合物を重合させることによりゲル状の電解質24を形成した。また、アクリル酸エステルは、化8に示したトリメチロールプロパントリアクリレートと、化9に示したネオペンチルグリコールジアクリレートとを、トリメチロールプロパントリアクリレート:ネオペンチルグリコールジアクリレート=3:7の質量比で混合したものを用いた。電解液は実験例1−1〜1−13と同様のものとした。
電解液を高分子化合物であるヘキサフルオロプロピレンとフッ化ビニリデンとの共重合体に保持させ、ゲル状の電解質24を作製したことを除き、他は実験例1−1〜1−13と同様にして二次電池を作製した。具体的には、次のようにして作製した。
電解液におけるβ−プロピオラクトンの含有量を2質量%または0.1質量%としたことを除き、他は実験例1−1,2−1,3−1,4−1と同様にして二次電池を作製した。
Claims (5)
- 2−クマラノンを含む電解液を含有し、
前記電解液における前記2−クマラノンの含有量は、0.1質量%以上2質量%以下である、二次電池用電解質。 - 更に、高分子化合物を含む、請求項1記載の二次電池用電解質。
- 正極および負極と共に電解質を備え、
前記電解質は、2−クマラノンを含む電解液を含有し、
前記電解液における前記2−クマラノンの含有量は、0.1質量%以上2質量%以下である、二次電池。 - 前記電解質は、更に、高分子化合物を含む、請求項3記載の二次電池。
- 前記正極,負極および電解質をフィルム状の外装部材に収納した、請求項3記載の二次電池。
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JP2940710B2 (ja) * | 1990-11-22 | 1999-08-25 | 三洋電機株式会社 | 非水電解液電池 |
JP3066126B2 (ja) * | 1991-09-10 | 2000-07-17 | 三洋電機株式会社 | 非水系電解液電池 |
JPH07201360A (ja) * | 1993-12-29 | 1995-08-04 | Sony Corp | 非水電解液二次電池 |
JPH0950944A (ja) * | 1995-08-08 | 1997-02-18 | Nippon Zeon Co Ltd | 有機溶媒系電解液 |
JP3680454B2 (ja) * | 1996-05-28 | 2005-08-10 | 株式会社デンソー | 非水電解質二次電池 |
JP3663897B2 (ja) * | 1998-03-20 | 2005-06-22 | 宇部興産株式会社 | リチウム二次電池用電解液およびそれを用いたリチウム二次電池 |
JP3633268B2 (ja) * | 1998-03-20 | 2005-03-30 | 宇部興産株式会社 | リチウム二次電池用電解液およびそれを用いたリチウム二次電池 |
JP3957415B2 (ja) * | 1998-10-20 | 2007-08-15 | 日立マクセル株式会社 | 非水二次電池 |
JP4026288B2 (ja) * | 1999-11-30 | 2007-12-26 | 三菱化学株式会社 | リチウム二次電池 |
JP4900994B2 (ja) * | 2000-09-06 | 2012-03-21 | 株式会社東芝 | 非水電解質二次電池 |
JP2002190316A (ja) * | 2000-12-22 | 2002-07-05 | Mitsubishi Chemicals Corp | 非水系電解液及びそれを用いたリチウム二次電池 |
JP2003297418A (ja) * | 2002-04-01 | 2003-10-17 | Japan Storage Battery Co Ltd | 非水電解質二次電池 |
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