CN116207243B - 一种纤维状硅碳复合材料及其制备方法 - Google Patents
一种纤维状硅碳复合材料及其制备方法 Download PDFInfo
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- CN116207243B CN116207243B CN202310152147.1A CN202310152147A CN116207243B CN 116207243 B CN116207243 B CN 116207243B CN 202310152147 A CN202310152147 A CN 202310152147A CN 116207243 B CN116207243 B CN 116207243B
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- composite material
- silicon
- carbon fiber
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- lithium silicate
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- 239000002153 silicon-carbon composite material Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 70
- 239000004917 carbon fiber Substances 0.000 claims abstract description 70
- 229910003481 amorphous carbon Inorganic materials 0.000 claims abstract description 13
- 239000011258 core-shell material Substances 0.000 claims abstract description 12
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 7
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 4
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 80
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 66
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 47
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 37
- 239000002131 composite material Substances 0.000 claims description 35
- 229910052757 nitrogen Inorganic materials 0.000 claims description 33
- 238000007740 vapor deposition Methods 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 20
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 18
- 238000000151 deposition Methods 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 16
- 238000009987 spinning Methods 0.000 claims description 15
- 239000003513 alkali Substances 0.000 claims description 13
- 238000005336 cracking Methods 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- 238000003763 carbonization Methods 0.000 claims description 10
- 125000004122 cyclic group Chemical group 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- 239000012298 atmosphere Substances 0.000 claims description 9
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 9
- 238000010926 purge Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000010041 electrostatic spinning Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 239000013077 target material Substances 0.000 claims description 7
- 239000005046 Chlorosilane Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000002134 carbon nanofiber Substances 0.000 claims description 6
- 238000010000 carbonizing Methods 0.000 claims description 6
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- 238000001694 spray drying Methods 0.000 claims description 6
- QABCGOSYZHCPGN-UHFFFAOYSA-N chloro(dimethyl)silicon Chemical compound C[Si](C)Cl QABCGOSYZHCPGN-UHFFFAOYSA-N 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 claims description 5
- 239000005052 trichlorosilane Substances 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 4
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 4
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 claims description 4
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 3
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 3
- XNAFLNBULDHNJS-UHFFFAOYSA-N dichloro(phenyl)silicon Chemical compound Cl[Si](Cl)C1=CC=CC=C1 XNAFLNBULDHNJS-UHFFFAOYSA-N 0.000 claims description 3
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 3
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 3
- 239000011736 potassium bicarbonate Substances 0.000 claims description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 235000011181 potassium carbonates Nutrition 0.000 claims description 3
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 3
- 239000005053 propyltrichlorosilane Substances 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- MYBZUWXXEFKPEE-UHFFFAOYSA-N trichloro(prop-1-enyl)silane Chemical compound CC=C[Si](Cl)(Cl)Cl MYBZUWXXEFKPEE-UHFFFAOYSA-N 0.000 claims description 3
- DOEHJNBEOVLHGL-UHFFFAOYSA-N trichloro(propyl)silane Chemical compound CCC[Si](Cl)(Cl)Cl DOEHJNBEOVLHGL-UHFFFAOYSA-N 0.000 claims description 3
- 230000009089 cytolysis Effects 0.000 claims description 2
- 238000001523 electrospinning Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 6
- 230000000052 comparative effect Effects 0.000 description 31
- 238000012360 testing method Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 12
- 239000003792 electrolyte Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000014759 maintenance of location Effects 0.000 description 7
- 229910000077 silane Inorganic materials 0.000 description 7
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical group CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000012300 argon atmosphere Substances 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- -1 stirring and pulping Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101150058243 Lipf gene Proteins 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Abstract
Description
极片满电反弹率(%) | |
实施例1 | 35.3 |
实施例2 | 36.6 |
实施例3 | 37.6 |
对比例1 | 41.4 |
对比例2 | 45.5 |
对比例3 | 42.8 |
对比例4 | 75.9 |
对比例5 | 66.8 |
循环500次容量保持率(%) | |
实施例1 | 92.12 |
实施例2 | 91.28 |
实施例3 | 90.29 |
对比例1 | 87.55 |
对比例2 | 85.3% |
对比例3 | 86.9% |
对比例4 | 82.9% |
对比例5 | 83.6% |
Claims (10)
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CN202310152147.1A CN116207243B (zh) | 2023-02-22 | 一种纤维状硅碳复合材料及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202310152147.1A CN116207243B (zh) | 2023-02-22 | 一种纤维状硅碳复合材料及其制备方法 |
Publications (2)
Publication Number | Publication Date |
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CN116207243A CN116207243A (zh) | 2023-06-02 |
CN116207243B true CN116207243B (zh) | 2024-07-16 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107887587A (zh) * | 2017-11-09 | 2018-04-06 | 中南大学 | 锂离子电池复合负极材料及其制备方法 |
WO2022193286A1 (zh) * | 2021-03-19 | 2022-09-22 | 宁德新能源科技有限公司 | 负极材料及其制备方法、电化学装置及电子装置 |
CN116581262A (zh) * | 2023-05-22 | 2023-08-11 | 晖阳(贵州)新能源材料有限公司 | 一种硅碳复合材料的制备方法 |
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107887587A (zh) * | 2017-11-09 | 2018-04-06 | 中南大学 | 锂离子电池复合负极材料及其制备方法 |
WO2022193286A1 (zh) * | 2021-03-19 | 2022-09-22 | 宁德新能源科技有限公司 | 负极材料及其制备方法、电化学装置及电子装置 |
CN116581262A (zh) * | 2023-05-22 | 2023-08-11 | 晖阳(贵州)新能源材料有限公司 | 一种硅碳复合材料的制备方法 |
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PB01 | Publication | ||
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TA01 | Transfer of patent application right |
Effective date of registration: 20240410 Address after: 257503 No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province Applicant after: Shenghua New Material Group Co.,Ltd. Country or region after: China Applicant after: Shenghua new material technology (Meishan) Co.,Ltd. Applicant after: Shenghua New Materials Technology (Lianjiang) Co.,Ltd. Address before: 257503 No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province Applicant before: Shenghua New Material Group Co.,Ltd. Country or region before: China Applicant before: Shenghua new material technology (Meishan) Co.,Ltd. Applicant before: Dongying Shenghuaying Innovative Materials Co.,Ltd. |
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CB02 | Change of applicant information |
Country or region after: China Address after: 257503 No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province Applicant after: Shi Dashenghua New Materials Group Co.,Ltd. Applicant after: Shenghua new material technology (Meishan) Co.,Ltd. Applicant after: Shenghua New Materials Technology (Lianjiang) Co.,Ltd. Address before: 257503 No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province Applicant before: Shenghua New Material Group Co.,Ltd. Country or region before: China Applicant before: Shenghua new material technology (Meishan) Co.,Ltd. Applicant before: Shenghua New Materials Technology (Lianjiang) Co.,Ltd. |
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GR01 | Patent grant |