CN114335462A - 一种用于低温的石墨负极材料及其制备方法及一种锂电池 - Google Patents
一种用于低温的石墨负极材料及其制备方法及一种锂电池 Download PDFInfo
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- CN114335462A CN114335462A CN202111604997.8A CN202111604997A CN114335462A CN 114335462 A CN114335462 A CN 114335462A CN 202111604997 A CN202111604997 A CN 202111604997A CN 114335462 A CN114335462 A CN 114335462A
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- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 131
- 239000010439 graphite Substances 0.000 title claims abstract description 129
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000007773 negative electrode material Substances 0.000 title claims description 20
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 29
- 239000010941 cobalt Substances 0.000 claims abstract description 29
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000010406 cathode material Substances 0.000 claims abstract description 28
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 238000000197 pyrolysis Methods 0.000 claims abstract description 12
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- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 11
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- 229940006186 sodium polystyrene sulfonate Drugs 0.000 claims description 17
- 239000010405 anode material Substances 0.000 claims description 16
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 7
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 238000005087 graphitization Methods 0.000 claims description 3
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 11
- 230000002349 favourable effect Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
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- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000001764 infiltration Methods 0.000 abstract description 3
- 230000008595 infiltration Effects 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 abstract 1
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 20
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 13
- 229910001981 cobalt nitrate Inorganic materials 0.000 description 13
- 239000000243 solution Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
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- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 8
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- 229940044175 cobalt sulfate Drugs 0.000 description 7
- 229910000361 cobalt sulfate Inorganic materials 0.000 description 7
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 7
- 238000001027 hydrothermal synthesis Methods 0.000 description 7
- 239000011247 coating layer Substances 0.000 description 6
- 150000001868 cobalt Chemical class 0.000 description 6
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 150000002736 metal compounds Chemical class 0.000 description 4
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- 125000001477 organic nitrogen group Chemical group 0.000 description 4
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- 229910003481 amorphous carbon Inorganic materials 0.000 description 3
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- 229910020676 Co—N Inorganic materials 0.000 description 1
- IUHFWCGCSVTMPG-UHFFFAOYSA-N [C].[C] Chemical group [C].[C] IUHFWCGCSVTMPG-UHFFFAOYSA-N 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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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
- Y02E60/10—Energy storage using batteries
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CN115084475A (zh) * | 2022-06-27 | 2022-09-20 | 蜂巢能源科技股份有限公司 | 一种快离子导体包覆石墨复合材料及其制备方法和应用 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115084475A (zh) * | 2022-06-27 | 2022-09-20 | 蜂巢能源科技股份有限公司 | 一种快离子导体包覆石墨复合材料及其制备方法和应用 |
CN115084475B (zh) * | 2022-06-27 | 2024-02-27 | 蜂巢能源科技股份有限公司 | 一种快离子导体包覆石墨复合材料及其制备方法和应用 |
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