CN103811729B - 一种包覆一氧化硅网状结构的纳米硅粒子与石墨烯锂电池负极材料混合物的制备方法 - Google Patents
一种包覆一氧化硅网状结构的纳米硅粒子与石墨烯锂电池负极材料混合物的制备方法 Download PDFInfo
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- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 title claims abstract description 120
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 78
- 239000005543 nano-size silicon particle Substances 0.000 title claims abstract description 53
- 239000000203 mixture Substances 0.000 title claims abstract description 51
- 239000010406 cathode material Substances 0.000 title claims abstract description 48
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 150000003377 silicon compounds Chemical class 0.000 claims abstract description 30
- 239000002105 nanoparticle Substances 0.000 claims abstract description 25
- 238000004227 thermal cracking Methods 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims description 17
- 238000000889 atomisation Methods 0.000 claims description 13
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 12
- 229910000077 silane Inorganic materials 0.000 claims description 12
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 claims description 10
- 239000005049 silicon tetrachloride Substances 0.000 claims description 10
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- 238000000034 method Methods 0.000 abstract description 25
- 239000002245 particle Substances 0.000 abstract description 17
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 21
- 229910052710 silicon Inorganic materials 0.000 description 14
- 239000010703 silicon Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
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- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- 229910019142 PO4 Inorganic materials 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
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- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
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- H—ELECTRICITY
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- 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
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- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Silicon Compounds (AREA)
Abstract
Description
硅化合物 | 硅化合物与石墨烯的质量比 | 超声功率(W) | 超声波换能器频率(MHz) | 微波频率(MHz) | 微波氧分压(ppm) | 温度(℃) | 反应时间(s) | |
实施例1 | 硅烷 | 10:90 | 500 | 1.5 | 1800 | 500 | 300 | 100s |
实施例2 | 硅烷 | 1:99 | 250 | 1.7 | 915 | 10000 | 200 | 10s |
实施例3 | 四氯化硅 | 20:80 | 200 | 2.4 | 2450 | 5 | 500 | 300s |
实施例4 | 硅烷 | 15:85 | 250 | 1.7 | 1200 | 1000 | 350 | 20s |
实施例5 | 正硅酸乙酯 | 5:95 | 500 | 2.4 | 1000 | 2500 | 300 | 20s |
实施例6 | 四氯化硅 | 25:75 | 500 | 2.4 | 1000 | 2500 | 300 | 20s |
实施例7 | 硅烷 | 30:70 | 500 | 2.4 | 1000 | 2500 | 300 | 20s |
实施例8 | 硅烷 | 15:85 | 700 | 1.0 | 1200 | 1000 | 350 | 20s |
实施例9 | 硅烷 | 15:85 | 150 | 3.0 | 1200 | 1000 | 350 | 20s |
对比10 | 硅烷 | 40:60 | 250 | 1.7 | 1200 | 1000 | 350 | 20s |
对比11 | 硅烷 | 50:50 | 250 | 1.7 | 1200 | 1000 | 350 | 20s |
雾化速率(mL/min) | 电池电容量mAh/g | 充电前、后电池体积变化量 | 循环寿命(次) | |
实施例1 | 37 | 2512 | 29% | >5000 |
实施例2 | 13 | 2314 | 10% | >5000 |
实施例3 | 7 | 2270 | 63% | >5000 |
实施例4 | 5 | 2788 | 42% | >5000 |
实施例5 | 15 | 2948 | 17% | >5000 |
实施例6 | 6 | 2834 | 71% | >5000 |
实施例7 | 11 | 2858 | 68% | >5000 |
实施例8 | 5 | 2672 | 102% | 4000~5000 |
实施例9 | 1.2 | 2541 | 70% | >5000 |
对比10 | 8 | 1247 | 85% | 1500 |
对比11 | 10 | 1064 | 90% | 1500 |
Claims (9)
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CN201410063560.1A CN103811729B (zh) | 2013-12-30 | 2014-02-25 | 一种包覆一氧化硅网状结构的纳米硅粒子与石墨烯锂电池负极材料混合物的制备方法 |
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CN105958019A (zh) * | 2016-05-18 | 2016-09-21 | 苏州协鑫集成科技工业应用研究院有限公司 | 一氧化硅/石墨烯复合材料及其制备方法及负极片及电池 |
CN108417794B (zh) * | 2018-02-05 | 2021-02-26 | 合肥国轩高科动力能源有限公司 | 一种硅纳米层石墨复合异质结材料及其制备方法和应用 |
CN112374834B (zh) * | 2020-11-30 | 2021-12-17 | 阜南县民安人防工程设备有限公司 | 一种改善发泡水泥防火门芯板因热传导的非均匀性导致易开裂的处理工艺 |
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CN103311526A (zh) * | 2013-06-09 | 2013-09-18 | 深圳市贝特瑞新能源材料股份有限公司 | 一种氧化硅/碳复合材料及其制备方法与用途 |
CN103474631B (zh) * | 2013-10-08 | 2017-01-11 | 深圳市贝特瑞新能源材料股份有限公司 | 一种锂离子电池用氧化亚硅复合负极材料、制备方法及锂离子电池 |
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