JP4753655B2 - リチウム二次電池 - Google Patents
リチウム二次電池 Download PDFInfo
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- JP4753655B2 JP4753655B2 JP2005225437A JP2005225437A JP4753655B2 JP 4753655 B2 JP4753655 B2 JP 4753655B2 JP 2005225437 A JP2005225437 A JP 2005225437A JP 2005225437 A JP2005225437 A JP 2005225437A JP 4753655 B2 JP4753655 B2 JP 4753655B2
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- Prior art keywords
- lithium
- negative electrode
- secondary battery
- lithium secondary
- active material
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- 229910052744 lithium Inorganic materials 0.000 title claims description 47
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 46
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 38
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 18
- 239000007773 negative electrode material Substances 0.000 claims description 15
- -1 lithium hexafluorophosphate Chemical compound 0.000 claims description 12
- 239000011255 nonaqueous electrolyte Substances 0.000 claims description 12
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 10
- 239000012046 mixed solvent Substances 0.000 claims description 9
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 239000007774 positive electrode material Substances 0.000 claims description 6
- 229910011458 Li4/3 Ti5/3O4 Inorganic materials 0.000 claims description 5
- 229910052596 spinel Inorganic materials 0.000 claims description 4
- 239000011029 spinel Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 description 15
- 239000008151 electrolyte solution Substances 0.000 description 8
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 5
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 3
- 229910013553 LiNO Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 150000005678 chain carbonates Chemical class 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 150000005676 cyclic carbonates Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 1
- 229910018136 Li 2 Ti 3 O 7 Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- IDNHOWMYUQKKTI-UHFFFAOYSA-M lithium nitrite Chemical compound [Li+].[O-]N=O IDNHOWMYUQKKTI-UHFFFAOYSA-M 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- PNGLEYLFMHGIQO-UHFFFAOYSA-M sodium;3-(n-ethyl-3-methoxyanilino)-2-hydroxypropane-1-sulfonate;dihydrate Chemical compound O.O.[Na+].[O-]S(=O)(=O)CC(O)CN(CC)C1=CC=CC(OC)=C1 PNGLEYLFMHGIQO-UHFFFAOYSA-M 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 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
Landscapes
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
(実施例1−1)
〔正極の作製〕
LiCoO2粉末が85重量部、導電剤としての炭素粉末が10重量部、結着剤としてのポリフッ化ビニリデン粉末が5重量部となるように混合して正極合剤を調製し、正極合剤を加圧成型することにより、直径が17mm、厚みが1.0mmの円盤状の正極を作製した。
Li4/3Ti5/3O4粉末が85重量部、導電剤としての炭素粉末が10重量部、結着剤としてのポリフッ化ビニリデン粉末が5重量部となるように混合して負極合剤を調製し、負極合剤を加圧成型することにより、直径が17mm、厚みが1.0mmの円盤状の負極を作製した。
エチレンカーボネート(EC)とジメチルカーボネート(DMC)との等体積混合溶媒に、ヘキサフルオロリン酸リチウム(LiPF6)を1mol/L、硝酸リチウム(LiNO3)を0.5g/L溶解して電解液とした。
上記の正極、負極及び非水電解液を使用して、扁平形の本発明電池A1(リチウム二次電池:電池寸法:外径24mm、厚さ3mm)を組み立てた。なお、セパレータとしては、ポリプロピレン製の不織布を使用し、これに非水電解液を含浸させた。
電解液溶媒に、エチレンカーボネート(EC)とジエチルカーボネート(DEC)との等体積混合溶媒を使用したこと以外は実施例1−1と同様にして、本発明電池A2を組み立てた。
非水電解液に、硝酸リチウム(LiNO3)を溶解しないこと以外は実施例1−1と同様にして、比較電池X1を組み立てた。
電解液の溶質として六フッ化リン酸リチウム(LiPF6)1mol/Lの代わりに、四フッ化ホウ酸リチウム(LiBF4)1mol/Lを使用したこと以外は実施例1−1と同様にして、比較電池X2を組み立てた。
電池作製直後の各電池を、25℃において、電流値1mAで3Vまで充電した後、電流値1mAで2Vまで放電し、電池作製直後の放電容量を測定した。また、各電池を、25℃において、電流値1mAで3Vまで充電した後、60℃、90%の相対湿度で1カ月間保存し、その後、電流値1mAで2Vまで放電し、保存後の放電容量を測定した。そして、保存後の容量維持率={(保存後の放電容量)/(電池作製直後の放電容量)}×100(%)を求めた。各電池の容量維持率を表1に示す。
(実施例2−1)
負極活物質として、Li4/3Ti5/3O4(スピネル型)粉末を使用し、実施例1−1と同様にして、本発明電池をB1(本発明電池A1)を組み立てた。
負極活物質として、Li2Ti3O7(ラムスデライト型)粉末を使用したこと以外は、実施例1−1と同様にして、本発明電池B1を組み立てた。
非水電解液に、硝酸リチウム(LiNO3)を溶解しないこと以外は、実施例2−2と同様にして、比較電池X3を組み立てた。
実施例1と同様にして、上記各電池の容量維持率を測定し、表2に示した。
2…正極
3…セパレータ
4…負極缶
5…正極缶
6…負極集電体
7…正極集電体
8…絶縁パッキング
Claims (3)
- 正極活物質を含む正極と、負極活物質を含む負極と、溶質及び溶媒を含む非水電解質とを備えるリチウム二次電池において、
前記負極活物質がチタン酸リチウムであり、前記溶質が六フッ化リン酸リチウムと硝酸リチウムの混合溶質であることを特徴とするリチウム二次電池。 - 前記溶媒が、エチレンカーボネートとジメチルカーボネートの混合溶媒であることを特徴とする請求項1に記載のリチウム二次電池。
- 前記チタン酸リチウムが、Li4/3Ti5/3O4で表されるスピネル型のチタン酸リチウムであることを特徴とする請求項1または2に記載のリチウム二次電池。
Priority Applications (1)
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JP2005225437A JP4753655B2 (ja) | 2005-08-03 | 2005-08-03 | リチウム二次電池 |
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JP2005225437A JP4753655B2 (ja) | 2005-08-03 | 2005-08-03 | リチウム二次電池 |
Publications (2)
Publication Number | Publication Date |
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JP2007042440A JP2007042440A (ja) | 2007-02-15 |
JP4753655B2 true JP4753655B2 (ja) | 2011-08-24 |
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JP2005225437A Expired - Fee Related JP4753655B2 (ja) | 2005-08-03 | 2005-08-03 | リチウム二次電池 |
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JP (1) | JP4753655B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2262047B1 (en) * | 2008-03-05 | 2015-04-29 | GS Yuasa International Ltd. | Non-aqueous electrolyte battery |
JP5311123B2 (ja) * | 2009-03-03 | 2013-10-09 | 株式会社Gsユアサ | 非水電解質電池 |
JP5741976B2 (ja) | 2011-05-02 | 2015-07-01 | トヨタ自動車株式会社 | リチウム二次電池 |
JP5839227B2 (ja) * | 2011-11-10 | 2016-01-06 | トヨタ自動車株式会社 | リチウム二次電池とその製造方法 |
EP2827431A4 (en) * | 2012-03-15 | 2015-11-18 | Toshiba Kk | NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY AND BATTERY ELEMENT BLOCK |
KR101749186B1 (ko) | 2013-09-11 | 2017-07-03 | 삼성에스디아이 주식회사 | 리튬 전지용 전해질, 이를 포함하는 리튬 전지, 및 리튬 전지용 전해질의 제조방법 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07302618A (ja) * | 1994-05-09 | 1995-11-14 | Nippon Telegr & Teleph Corp <Ntt> | 非水溶媒電解液を有する二次電池 |
JPH11345629A (ja) * | 1998-03-31 | 1999-12-14 | Canon Inc | 二次電池及びその製造方法 |
JP2001052747A (ja) * | 1999-08-06 | 2001-02-23 | Matsushita Electric Ind Co Ltd | リチウム二次電池 |
JP2002008658A (ja) * | 2000-06-27 | 2002-01-11 | Toyota Central Res & Dev Lab Inc | リチウム二次電池電極活物質用リチウムチタン複合酸化物およびその製造方法 |
JP4034940B2 (ja) * | 2001-02-27 | 2008-01-16 | 独立行政法人科学技術振興機構 | 非水電解液を用いたリチウム二次電池 |
JP4236427B2 (ja) * | 2002-08-26 | 2009-03-11 | 三洋電機株式会社 | リチウム二次電池 |
JP2004335310A (ja) * | 2003-05-08 | 2004-11-25 | Toyota Central Res & Dev Lab Inc | リチウム二次電池 |
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2005
- 2005-08-03 JP JP2005225437A patent/JP4753655B2/ja not_active Expired - Fee Related
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JP2007042440A (ja) | 2007-02-15 |
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