CN101151748A - 锂二次电池及其正极材料 - Google Patents
锂二次电池及其正极材料 Download PDFInfo
- Publication number
- CN101151748A CN101151748A CNA2006800103482A CN200680010348A CN101151748A CN 101151748 A CN101151748 A CN 101151748A CN A2006800103482 A CNA2006800103482 A CN A2006800103482A CN 200680010348 A CN200680010348 A CN 200680010348A CN 101151748 A CN101151748 A CN 101151748A
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- China
- Prior art keywords
- composite oxide
- lithium
- positive electrode
- powder
- oxide powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 67
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 239000010406 cathode material Substances 0.000 title description 2
- 239000000843 powder Substances 0.000 claims abstract description 144
- 239000002131 composite material Substances 0.000 claims abstract description 103
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000011572 manganese Substances 0.000 claims abstract description 54
- 239000007774 positive electrode material Substances 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 36
- SOXUFMZTHZXOGC-UHFFFAOYSA-N [Li].[Mn].[Co].[Ni] Chemical compound [Li].[Mn].[Co].[Ni] SOXUFMZTHZXOGC-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000013078 crystal Substances 0.000 claims abstract description 23
- 239000002245 particle Substances 0.000 claims description 79
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 38
- 239000002002 slurry Substances 0.000 claims description 38
- 229910052799 carbon Inorganic materials 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 31
- 239000011164 primary particle Substances 0.000 claims description 27
- 239000011163 secondary particle Substances 0.000 claims description 26
- 238000000634 powder X-ray diffraction Methods 0.000 claims description 25
- 238000001694 spray drying Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 17
- 150000002642 lithium compounds Chemical class 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 238000010298 pulverizing process Methods 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 9
- 238000009830 intercalation Methods 0.000 claims description 8
- 150000002697 manganese compounds Chemical class 0.000 claims description 7
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- 239000011255 nonaqueous electrolyte Substances 0.000 claims description 7
- 150000001869 cobalt compounds Chemical class 0.000 claims description 6
- 229910003002 lithium salt Inorganic materials 0.000 claims description 4
- 159000000002 lithium salts Chemical class 0.000 claims description 4
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- 238000005259 measurement Methods 0.000 description 18
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- 238000002441 X-ray diffraction Methods 0.000 description 11
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- 239000007787 solid Substances 0.000 description 11
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- 239000002612 dispersion medium Substances 0.000 description 9
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- 238000012360 testing method Methods 0.000 description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 8
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- 229910018661 Ni(OH) Inorganic materials 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
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- 238000001132 ultrasonic dispersion Methods 0.000 description 6
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- 230000002411 adverse Effects 0.000 description 5
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- 239000007864 aqueous solution Substances 0.000 description 5
- 238000001354 calcination Methods 0.000 description 5
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- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 5
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 229910018916 CoOOH Inorganic materials 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
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- 238000013019 agitation Methods 0.000 description 4
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 150000001247 metal acetylides Chemical class 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000002562 thickening agent Substances 0.000 description 4
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910002640 NiOOH Inorganic materials 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
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- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 3
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- 150000002367 halogens Chemical class 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
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- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
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- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
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- 238000000790 scattering method Methods 0.000 description 1
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- 238000004611 spectroscopical analysis Methods 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- MAAKQSASDHJHIR-UHFFFAOYSA-N trioxolane Chemical compound C1COOO1 MAAKQSASDHJHIR-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Images
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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- C01G45/1221—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof
- C01G45/1228—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (MnO2)-, e.g. LiMnO2 or Li(MxMn1-x)O2
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- C01G51/50—Complex oxides containing cobalt and at least one other metal element containing alkali metals, e.g. LiCoO2 containing manganese of the type (MnO2)n-, e.g. Li(CoxMn1-x)O2 or Li(MyCoxMn1-x-y)O2
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- C01G53/50—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
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Abstract
Description
组成 | 含有的C浓度(重量%) | 体积电阻率(Ω·cm) | 2θ=31±1°衍射峰 | 有无层状R(-3)m结构 | 晶格常数() | |||||||
x | y | z | z下限*1 | z上限*2 | a | c | ||||||
实施例 | 1 | 0.055 | 0.159 | 0.032 | 0.014 | 0.105 | 0.020 | 1.0×105 | 无 | 有 | 2.868 | 14.260 |
2 | 0.055 | 0.159 | 0.076 | 0.014 | 0.105 | 0.020 | 2.6×104 | 无 | 有 | 2.866 | 14.254 | |
3 | 0.113 | 0.159 | 0.071 | 0.011 | 0.083 | 0.028 | 3.6×104 | 无 | 有 | 2.858 | 14.239 | |
4 | 0.113 | 0.159 | 0.033 | 0.011 | 0.083 | 0.020 | 2.0×105 | 无 | 有 | 2.861 | 14.250 | |
比较例 | 1 | 0.055 | 0.159 | -0.013 | 0.014 | 0.105 | 0.009 | 1.3×107 | 无 | 有 | 2.872 | 14.269 |
2 | 0.113 | 0.159 | 0.106 | 0.011 | 0.083 | 0.016 | 2.0×104 | 无 | 有 | 2.855 | 14.234 | |
3 | 0.141 | 0.222 | 0.005 | 0.009 | 0.067 | 0.009 | 3.4×106 | 无 | 有 | 2.857 | 14.248 | |
4 | 0.141 | 0.222 | -0.086 | 0.009 | 0.067 | 0.003 | - | 有 | 有 | 2.857 | 14.254 | |
5 | 0.000 | 0.161 | 0.056 | 0.017 | 0.126 | 0.019 | 3.0×104 | 无 | 有 | 2.873 | 14.265 |
平均一次粒径(μm) | 二次粒子中值粒径(μm) | 90%累积粒径(μm) | 松密度(g/cm3) | BET比表面积(m2/g) | ||
实施例 | 1 | 0.6 | 10.3 | 16.6 | 1.9 | 1.16 |
2 | 0.6 | 10.4 | 16.6 | 1.8 | 1.00 | |
3 | 0.7 | 11.4 | 18.7 | 2.0 | 0.94 | |
4 | 0.6 | 11.4 | 19.0 | 2.0 | 1.13 | |
比较例 | 1 | 0.6 | 10.3 | 15.8 | 2.0 | 1.17 |
2 | 0.7 | 11.2 | 18.1 | 2.1 | 0.36 | |
3 | 0.3 | 6.2 | 9.6 | 2.1 | 0.98 | |
4 | 0.5 | 6.4 | 9.8 | 2.0 | 0.70 | |
5 | 0.7 | 10.8 | 17.6 | 2.1 | 1.03 |
低速率放电容量L(mAh/g) | 高速率放电容量H(mAh/g) | L/H×100(%) | 判定结果 | ||
实施例 | 1 | 181.2 | 138.2 | 76 | ○ |
2 | 178.5 | 139.3 | 78 | ○ | |
3 | 166.9 | 125.9 | 76 | ○ | |
4 | 173.1 | 130.3 | 76 | ○ | |
比较例 | 1 | 181.1 | 121.8 | 67 | × |
2 | 159.0 | 114.1 | 72 | × | |
3 | 167.8 | 118.6 | 71 | × | |
4 | 158.2 | 108.7 | 69 | × | |
5 | 186.0 | 138.4 | 74 | × |
初期充放电容量(mAh/g) | 第3循环放电容量(mAh/g) | 第52循环放电容量(mAh/g) | 循环维持率(%) | 判定结果 | 综合判定结果 | ||
实施例 | 1 | 229.5/197.4 | 184.8 | 159.4 | 86 | ○ | ○ |
2 | 240.7/193.1 | 181.4 | 157.9 | 87 | ○ | ○ | |
3 | 264.8/188.7 | 176.7 | 167.7 | 95 | ○ | ○ | |
4 | 250.6/192.4 | 180.5 | 167.4 | 93 | ○ | ○ | |
比较例 | 1 | 224.4/196.0 | 182.7 | 156.3 | 86 | ○ | × |
2 | 285.0/183.7 | 171.7 | 168.9 | 98 | × | × | |
3 | 249.6/186.4 | 171.0 | 141.4 | 83 | × | × | |
4 | 234.5/172.7 | 157.2 | 131.8 | 84 | × | × | |
5 | 226.7/199.1 | 189.8 | 160.3 | 84 | × | × |
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2006
- 2006-02-02 CN CN2006800103482A patent/CN101151748B/zh not_active Expired - Fee Related
- 2006-02-02 US US11/815,319 patent/US20090011334A1/en not_active Abandoned
- 2006-02-02 WO PCT/JP2006/301734 patent/WO2006085467A1/ja not_active Application Discontinuation
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Also Published As
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CN101151748B (zh) | 2010-10-06 |
WO2006085467A1 (ja) | 2006-08-17 |
JP2009245955A (ja) | 2009-10-22 |
US20090011334A1 (en) | 2009-01-08 |
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