CN101312242B - 锂二次电池正极极片、制备方法及应用此极片的电池 - Google Patents
锂二次电池正极极片、制备方法及应用此极片的电池 Download PDFInfo
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- CN101312242B CN101312242B CN2007100745264A CN200710074526A CN101312242B CN 101312242 B CN101312242 B CN 101312242B CN 2007100745264 A CN2007100745264 A CN 2007100745264A CN 200710074526 A CN200710074526 A CN 200710074526A CN 101312242 B CN101312242 B CN 101312242B
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- coating layer
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- secondary battery
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 43
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 43
- 239000011248 coating agent Substances 0.000 claims abstract description 42
- 239000011247 coating layer Substances 0.000 claims abstract description 35
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 15
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 229910052788 barium Inorganic materials 0.000 claims abstract description 12
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 12
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 12
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 12
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 7
- 150000002642 lithium compounds Chemical class 0.000 claims abstract description 6
- 239000002033 PVDF binder Substances 0.000 claims description 19
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 19
- 239000007767 bonding agent Substances 0.000 claims description 17
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 12
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- -1 polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer Polymers 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 229910010929 LiFexMyPO4 Inorganic materials 0.000 abstract 1
- 239000010406 cathode material Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 26
- 239000011572 manganese Substances 0.000 description 19
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 17
- 239000011149 active material Substances 0.000 description 17
- 125000004122 cyclic group Chemical group 0.000 description 16
- 239000002904 solvent Substances 0.000 description 15
- 238000002156 mixing Methods 0.000 description 13
- 229910013716 LiNi Inorganic materials 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 12
- 238000004513 sizing Methods 0.000 description 12
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 10
- 229910001416 lithium ion Inorganic materials 0.000 description 10
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 239000005030 aluminium foil Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 8
- 239000002356 single layer Substances 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 229910015596 LiNi0.8Co0.17Al0.03O2 Inorganic materials 0.000 description 5
- 208000037656 Respiratory Sounds Diseases 0.000 description 5
- 229910010710 LiFePO Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 4
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 2
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 229910012002 LiFe0.75Co0.25PO4 Inorganic materials 0.000 description 1
- 229910011998 LiFe0.75Ni0.25PO4 Inorganic materials 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 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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- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
实施例 | 一次涂覆活性物质 | 一次涂覆单面厚度(um) | 总厚度(um) | 电池含PTC交流内阻(mΩ) | 0.2C平台电压(V) | 正极与铝箔的附着力 | 1C循环100次后容量保持率% |
1 | 导电乙炔黑 | 2 | 80 | 86 | 3.30 | 稍差 | 95.85 |
2 | LiNi0.8Co0.17Al0.03O2 | 200 | 300 | 67 | 3.31 | 良好 | 92.31 |
3 | LiNi1/3Co1/3Mn1/3O2 | 120 | 180 | 76 | 3.28 | 一般 | 98.59 |
4 | Li1.03Mn1.98Mg0.02O4 | 9 | 100 | 59 | 3.26 | 较好 | 99.63 |
5 | LiFe0.94Al0.04PO4 | 120 | 250 | 73 | 3.30 | 较好 | 95.20 |
6 | LiFe0.94Al0.04PO4和Li1.06Mn1.96Mg0.04O4 | 120 | 250 | 75 | 3.27 | 一般 | 97.32 |
7 | Li1.06Mn1.96Mg0.04O4 | 200 | 300 | 79 | 3.31 | 一般 | 94.56 |
8 | LiFe0.97Mg0.03PO4 | 200 | 300 | 86 | 3.30 | 较好 | 99.83 |
9 | Li1.06Mn1.96Mg0.04O4LiNi0.8Co0.17Al0.03O2 | 200 | 300 | 78 | 3.26 | 较好 | 99.45 |
10 | Li1.06Mn1.96Co0.04O4 | 200 | 300 | 69 | 3.27 | 较好 | 99.52 |
11 | Li1.06Mn1.96Cu0.04O4 | 200 | 300 | 75 | 3.32 | 较好 | 99.04 |
12 | LiNi0.8Co0.17Cr0.03O2 | 200 | 300 | 72 | 3.26 | 较好 | 99.52 |
13 | LiFe0.94Ti0.03PO4 | 200 | 300 | 83 | 3.28 | 较好 | 99.86 |
14 | LiFe0.94Ni0.06PO4 | 200 | 300 | 92 | 3.33 | 较好 | 99.56 |
15 | LiNi0.45Co0.45Ca0.15O2 | 200 | 300 | 68 | 3.34 | 较好 | 99.63 |
16 | LiNi0.45Co0.45Sr0.15O2 | 200 | 300 | 74 | 3.31 | 较好 | 99.3 |
Claims (15)
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CN2007100745264A CN101312242B (zh) | 2007-05-22 | 2007-05-22 | 锂二次电池正极极片、制备方法及应用此极片的电池 |
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CN2007100745264A CN101312242B (zh) | 2007-05-22 | 2007-05-22 | 锂二次电池正极极片、制备方法及应用此极片的电池 |
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CN101312242A CN101312242A (zh) | 2008-11-26 |
CN101312242B true CN101312242B (zh) | 2011-10-26 |
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CN101752549B (zh) * | 2008-12-02 | 2013-02-27 | Tcl集团股份有限公司 | 一种锂电池正极片的制备方法及锂电池 |
JP7131056B2 (ja) * | 2017-04-28 | 2022-09-06 | 住友金属鉱山株式会社 | 非水系電解液二次電池用正極活物質、非水系電解液二次電池 |
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