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Применить Всего найдено 4. Отображено 4.
02-06-2023 дата публикации

Composite current collector and preparation method and application thereof

Номер: CN116207270A
Автор: LIN FENGJIAN, THE INVENTOR HAS WAIVED THE RIGHT TO BE MENTIONED, REN MENGQIANG, LI XUDONG, HE ZONGKE, LIU FAN, LI YUNMING
Принадлежит:

The invention provides a composite current collector and a preparation method and application thereof, and the preparation method comprises the following steps: (1) mixing a master batch, a conductive agent, a coupling agent and a filler, carrying out molding and stretching treatment to obtain a polymer film layer, and carrying out roughening treatment on the polymer film layer; (2) carrying out magnetron sputtering bottoming treatment on the roughened polymer film layer; and (3) carrying out metal layer plating treatment on the bottomed polymer film to obtain the composite current collector, aiming at the problem that the binding force between the metal plating layer and the polymer film layer is weak, carrying out polymer film modification preparation, introducing a silver nanowire and a silicon dioxide template, removing the template and the like, and obtaining the composite current collector. The binding force of the composite current collector metal coating and the polymer film layer ...

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Номер записи: 1
01-08-2023 дата публикации

Negative electrode material and preparation method thereof, flexible negative electrode and lithium-sulfur battery

Номер: CN116525837A
Автор: HE ZONGKE, LI YUNMING, GU YUWEI, THE INVENTOR HAS WAIVED THE RIGHT TO BE MENTIONED, LIN FENGJIAN, LIU FAN
Принадлежит:

The invention relates to the technical field of batteries, in particular to a negative electrode material and a preparation method thereof, a flexible negative electrode and a lithium-sulfur battery. The negative electrode material provided by the invention comprises a carbon fiber loaded with Co3O4 nanoparticles and a ZnO layer, and the ZnO layer wraps the carbon fiber loaded with the Co3O4 nanoparticles. The flexible self-supporting negative electrode material disclosed by the invention has a mutually staggered three-dimensional network structure; wherein carbon fibers are used as a three-dimensional conductive framework, so that a stable and large lithium storage space is provided; the lithium-loving Co3O4 and the super-lithium-loving ZnO on the surface of the carbon fiber form a lithium-loving gradient and jointly act on deposition of metal lithium, uniform deposition of lithium is induced, and the inhibition effect on growth of negative electrode lithium dendrites is achieved. The ...

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Номер записи: 2
14-04-2023 дата публикации

Polymer-based membrane for composite current collector, composite current collector, and preparation method and application of polymer-based membrane

Номер: CN115960378A
Автор: ZHENG JUNHUA, THE INVENTOR HAS WAIVED THE RIGHT TO BE MENTIONED, LI XUDONG, LIN FENGJIAN, REN MENGQIANG, LI YUNMING, GAO FEI
Принадлежит:

The invention relates to a polymer-based membrane for a composite current collector, the composite current collector, a preparation method and application, and belongs to the technical field of current collectors. The material of the polymer base film is an n-type conductive polymer, the repeating unit of the structure of the n-type conductive polymer is represented by formula (1): R is the same or different and is independently selected from hydrogen, halogen, nitro, cyano, C1-C10 halogen substituted alkyl, C2-C10 alkenyl, C2-C10 alkynyl and silicon protected vinyl. The n-type conductive polymer has high conductivity, so that a conductive layer or a conductive agent does not need to be added, and the n-type conductive polymer can be used as a very simple high-performance composite current collector base membrane material; and the problem of swelling of the composite current collector can be avoided, and meanwhile, the coating adhesive force requirement is met.

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Номер записи: 3
05-05-2023 дата публикации

Composite current collector and preparation method and application thereof

Номер: CN116072883A
Автор: LIN FENGJIAN, REN MENGQIANG, LI XUDONG, THE INVENTOR HAS WAIVED THE RIGHT TO BE MENTIONED, ZHENG JUNHUA
Принадлежит:

The invention provides a composite current collector and a preparation method and application thereof. The composite current collector comprises a polymer supporting layer and a reinforced modified layer located on at least one face of the polymer supporting layer, and a metal layer is further arranged on the surface of the reinforced modified layer. The reinforced modified layer and the polymer supporting layer are in cross-linking connection through functional groups; and the reinforced modified layer comprises a conductive metal modified layer. The reinforced modified layer and the polymer supporting layer are in cross-linking connection through functional groups, so that the bonding strength is improved, and meanwhile, the strength and the bonding strength of the supporting layer are also improved; and the conductive metal of the reinforced modification layer provides a large number of deposition sites for deposition of the metal layer, so that the composite current collector with high ...

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Номер записи: 4