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Composite graphene film as well as preparation method and application thereof
The invention provides a composite graphene film as well as a preparation method and application thereof. The composite graphene film comprises graphene and graphite fibers; at least some of the graphite fibers and at least some of the graphene are interspersed to form a three-dimensional network structure; the thickness of the composite graphene film ranges from 130 micrometers to 250 micrometers, the in-plane heat conductivity coefficient of the composite graphene film ranges from 1400 W/(m.k) to 2000 W/(m.k), and the out-plane heat conductivity coefficient of the composite graphene film ranges from 5 W/(m.k) to 12.5 W/(m.k). The composite graphene film has relatively high in-plane and out-plane heat conductivity coefficients and relatively large thickness, so that the composite graphene film can realize relatively high heat flux and can realize efficient heat dissipation.
本申请提供了一种复合石墨烯膜及其制备方法、应用。复合石墨烯膜包括石墨烯和石墨纤维；至少一些所述石墨纤维与至少一些所述石墨烯穿插形成三维网状结构；所述复合石墨烯膜的厚度在130μm‑250μm的范围内，所述复合石墨烯膜的面内导热系数在1400W/(m·k)‑2000W/(m·k)的范围内,所述复合石墨烯膜的面外导热系数在5W/(m·k)‑12.5W/(m·k)的范围内。该复合石墨烯膜兼具较高的面内及面外导热系数，并且其厚度较大，故该复合石墨烯膜可实现较高的热通量，可实现高效散热。
Composite graphene film as well as preparation method and application thereof
The invention provides a composite graphene film as well as a preparation method and application thereof. The composite graphene film comprises graphene and graphite fibers; at least some of the graphite fibers and at least some of the graphene are interspersed to form a three-dimensional network structure; the thickness of the composite graphene film ranges from 130 micrometers to 250 micrometers, the in-plane heat conductivity coefficient of the composite graphene film ranges from 1400 W/(m.k) to 2000 W/(m.k), and the out-plane heat conductivity coefficient of the composite graphene film ranges from 5 W/(m.k) to 12.5 W/(m.k). The composite graphene film has relatively high in-plane and out-plane heat conductivity coefficients and relatively large thickness, so that the composite graphene film can realize relatively high heat flux and can realize efficient heat dissipation.
本申请提供了一种复合石墨烯膜及其制备方法、应用。复合石墨烯膜包括石墨烯和石墨纤维；至少一些所述石墨纤维与至少一些所述石墨烯穿插形成三维网状结构；所述复合石墨烯膜的厚度在130μm‑250μm的范围内，所述复合石墨烯膜的面内导热系数在1400W/(m·k)‑2000W/(m·k)的范围内,所述复合石墨烯膜的面外导热系数在5W/(m·k)‑12.5W/(m·k)的范围内。该复合石墨烯膜兼具较高的面内及面外导热系数，并且其厚度较大，故该复合石墨烯膜可实现较高的热通量，可实现高效散热。
Composite graphene film as well as preparation method and application thereof
一种复合石墨烯膜及其制备方法、应用
LI SHUAIZHEN (author) / HUANG SHAOHUA (author) / XIAO QIAN (author) / LI SHU (author)
2024-06-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
H01M
Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie
,
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
/
H05K
PRINTED CIRCUITS
,
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