CN110380029B - 锂电池用硅基负极材料及其制备方法 - Google Patents
锂电池用硅基负极材料及其制备方法 Download PDFInfo
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- CN110380029B CN110380029B CN201910621614.4A CN201910621614A CN110380029B CN 110380029 B CN110380029 B CN 110380029B CN 201910621614 A CN201910621614 A CN 201910621614A CN 110380029 B CN110380029 B CN 110380029B
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 95
- 239000010703 silicon Substances 0.000 title claims abstract description 95
- 239000007773 negative electrode material Substances 0.000 title claims abstract description 41
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 29
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000002245 particle Substances 0.000 claims abstract description 41
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 38
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 27
- 229910021419 crystalline silicon Inorganic materials 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 23
- 230000014759 maintenance of location Effects 0.000 claims abstract description 14
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 13
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000005253 cladding Methods 0.000 claims abstract description 5
- 241000219991 Lythraceae Species 0.000 claims abstract description 3
- 235000014360 Punica granatum Nutrition 0.000 claims abstract description 3
- 239000002210 silicon-based material Substances 0.000 claims description 55
- 239000000243 solution Substances 0.000 claims description 31
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 239000011889 copper foil Substances 0.000 claims description 19
- 229910021426 porous silicon Inorganic materials 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 14
- 238000000151 deposition Methods 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 229910017604 nitric acid Inorganic materials 0.000 claims description 12
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 7
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 7
- 239000012498 ultrapure water Substances 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 19
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 19
- 239000005543 nano-size silicon particle Substances 0.000 abstract description 12
- 239000003575 carbonaceous material Substances 0.000 abstract description 7
- 239000010406 cathode material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000002131 composite material Substances 0.000 description 9
- 239000010408 film Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007709 nanocrystallization Methods 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
实施例 | 循环500次的平均比容量(mAh/g) | 循环500次的容量保持率(%) |
实施例一 | 1214 | 93.11 |
实施例二 | 1236 | 93.47 |
实施例三 | 1231 | 93.51 |
Claims (1)
Priority Applications (1)
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CN201910621614.4A CN110380029B (zh) | 2019-07-10 | 2019-07-10 | 锂电池用硅基负极材料及其制备方法 |
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CN201910621614.4A CN110380029B (zh) | 2019-07-10 | 2019-07-10 | 锂电池用硅基负极材料及其制备方法 |
Publications (2)
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CN110380029A CN110380029A (zh) | 2019-10-25 |
CN110380029B true CN110380029B (zh) | 2022-03-25 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110783550B (zh) * | 2019-11-12 | 2023-11-14 | 长园泽晖新能源材料研究院(珠海)有限公司 | 用于制备锂离子电池的炭硅复合负极材料及其制备方法 |
WO2021134198A1 (zh) * | 2019-12-30 | 2021-07-08 | 上海杉杉科技有限公司 | 硅基负极材料及其制备方法、锂离子电池 |
CN114639807A (zh) * | 2022-03-04 | 2022-06-17 | 东华大学 | 一种多孔硅纳米颗粒/多孔碳纳米纤维复合电极材料及其制备方法和应用 |
WO2024092566A1 (zh) * | 2022-11-02 | 2024-05-10 | 宁德时代新能源科技股份有限公司 | 负极活性材料及其制备方法、以及包含其的二次电池及用电装置 |
Citations (7)
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CN102956877A (zh) * | 2011-08-15 | 2013-03-06 | 三星Sdi株式会社 | 负极活性物质、制备负极的方法以及可再充电锂电池 |
CN103050666A (zh) * | 2012-12-12 | 2013-04-17 | 中南大学 | 一种石墨烯包覆硅碳复合负极材料的制备方法 |
KR20150014397A (ko) * | 2013-07-29 | 2015-02-06 | 주식회사 엘지화학 | 구조적 안정성이 향상된 이차전지용 음극 합제 및 이를 포함하는 이차전지 |
KR20150026925A (ko) * | 2013-09-02 | 2015-03-11 | 주식회사 엘지화학 | 다공성 실리콘계 입자, 이의 제조 방법, 및 이를 포함하는 음극 활물질 |
CN105977468A (zh) * | 2016-07-04 | 2016-09-28 | 郑州人造金刚石及制品工程技术研究中心有限公司 | 一种高容量锂离子电池负极材料及其制备方法 |
CN106025196A (zh) * | 2016-05-17 | 2016-10-12 | 河南田园新能源科技有限公司 | 一种具有高比表面积硅碳负极复合材料的制备方法 |
CN107749490A (zh) * | 2017-09-18 | 2018-03-02 | 深圳市沃特玛电池有限公司 | 一种锂离子电池 |
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JP5158578B2 (ja) * | 2007-06-26 | 2013-03-06 | Necエナジーデバイス株式会社 | 非水電解質二次電池用負極およびそれを用いた非水電解質二次電池 |
GB0713898D0 (en) * | 2007-07-17 | 2007-08-29 | Nexeon Ltd | A method of fabricating structured particles composed of silcon or a silicon-based material and their use in lithium rechargeable batteries |
CN105070894B (zh) * | 2015-07-31 | 2018-02-23 | 深圳市贝特瑞新能源材料股份有限公司 | 一种锂离子电池用多孔硅基复合负极材料、制备方法及用途 |
KR102307911B1 (ko) * | 2017-04-27 | 2021-10-01 | 삼성에스디아이 주식회사 | 리튬이차전지용 음극 활물질 및 이를 포함하는 음극을 구비한 리튬이차전지 |
CN108232173A (zh) * | 2018-01-31 | 2018-06-29 | 金山电池国际有限公司 | 锂离子电池负极材料、其制备方法、其负极和锂离子电池 |
-
2019
- 2019-07-10 CN CN201910621614.4A patent/CN110380029B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102956877A (zh) * | 2011-08-15 | 2013-03-06 | 三星Sdi株式会社 | 负极活性物质、制备负极的方法以及可再充电锂电池 |
CN103050666A (zh) * | 2012-12-12 | 2013-04-17 | 中南大学 | 一种石墨烯包覆硅碳复合负极材料的制备方法 |
KR20150014397A (ko) * | 2013-07-29 | 2015-02-06 | 주식회사 엘지화학 | 구조적 안정성이 향상된 이차전지용 음극 합제 및 이를 포함하는 이차전지 |
KR20150026925A (ko) * | 2013-09-02 | 2015-03-11 | 주식회사 엘지화학 | 다공성 실리콘계 입자, 이의 제조 방법, 및 이를 포함하는 음극 활물질 |
CN106025196A (zh) * | 2016-05-17 | 2016-10-12 | 河南田园新能源科技有限公司 | 一种具有高比表面积硅碳负极复合材料的制备方法 |
CN105977468A (zh) * | 2016-07-04 | 2016-09-28 | 郑州人造金刚石及制品工程技术研究中心有限公司 | 一种高容量锂离子电池负极材料及其制备方法 |
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