Composite copper-based current collector, preparation method thereof and lithium ion battery
The invention provides a composite copper-based current collector, a preparation method thereof and a lithium ion battery, and belongs to the technical field of battery materials. The composite copper-based current collector comprises: a polymer-based film; the modified copper layer is arranged on a...
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| creator | ZENG LAIYUAN LI XUEFA XIA JIANZHONG ZHANG GUOPING ZHU ZHONGYA CHI XIAONAN |
| description | The invention provides a composite copper-based current collector, a preparation method thereof and a lithium ion battery, and belongs to the technical field of battery materials. The composite copper-based current collector comprises: a polymer-based film; the modified copper layer is arranged on at least one surface of the polymer base film; and the modified copper layer comprises a C-Cu heterogeneous microstructure with dispersed carbon quantum dots. According to the invention, the carbon quantum dots are introduced, so that the carbon quantum dots are uniformly dispersed at copper grains and copper grain boundaries, a C-Cu heterogeneous microstructure with dispersed carbon quantum dots is formed, and the existence of the carbon quantum dots can apply resistance to grain coarsening, inhibit grain coarsening and promote grain refinement, so that the tensile strength of the composite copper-based current collector is improved; the C-Cu heterogeneous microstructure can increase the dislocation storage capacit |
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The composite copper-based current collector comprises: a polymer-based film; the modified copper layer is arranged on at least one surface of the polymer base film; and the modified copper layer comprises a C-Cu heterogeneous microstructure with dispersed carbon quantum dots. According to the invention, the carbon quantum dots are introduced, so that the carbon quantum dots are uniformly dispersed at copper grains and copper grain boundaries, a C-Cu heterogeneous microstructure with dispersed carbon quantum dots is formed, and the existence of the carbon quantum dots can apply resistance to grain coarsening, inhibit grain coarsening and promote grain refinement, so that the tensile strength of the composite copper-based current collector is improved; the C-Cu heterogeneous microstructure can increase the dislocation storage capacit</description><language>chi ; eng</language><subject>BASIC ELECTRIC ELEMENTS ; CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; DIFFUSION TREATMENT OF METALLIC MATERIAL ; ELECTRICITY ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; METALLURGY ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240419&DB=EPODOC&CC=CN&NR=117913286A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240419&DB=EPODOC&CC=CN&NR=117913286A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZENG LAIYUAN</creatorcontrib><creatorcontrib>LI XUEFA</creatorcontrib><creatorcontrib>XIA JIANZHONG</creatorcontrib><creatorcontrib>ZHANG GUOPING</creatorcontrib><creatorcontrib>ZHU ZHONGYA</creatorcontrib><creatorcontrib>CHI XIAONAN</creatorcontrib><title>Composite copper-based current collector, preparation method thereof and lithium ion battery</title><description>The invention provides a composite copper-based current collector, a preparation method thereof and a lithium ion battery, and belongs to the technical field of battery materials. 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| subjects | BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION |
| title | Composite copper-based current collector, preparation method thereof and lithium ion battery |
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