• 专利标题:   Preparation of composite material with core-shell nanoparticles used as e.g. electrode in lithium battery, involves depositing ink comprising nanoparticles encapsulated in polymeric matrix on surface of substrate, and illuminating substrate covered with ink with pulsed light for dissociating carbon.
  • 专利号:   WO2021160874-A1, FR3107284-A1, FR3107284-B1
  • 发明人:   KASSEM O, RIEU M, VIRICELLE J, SAADAOUI M, OMAR K, MATHILDE R, JEANPAUL V, MOHAMED S
  • 专利权人:   INST MINESTELECOM
  • 国际专利分类:   B82Y040/00, G01N027/30, H01L051/00, H01L051/10, H01M004/36, H01M004/38, H01M004/48, H01M004/583, H01M004/587, H01M004/62, B82Y030/00, C01B032/182, C09D011/38, C23C018/14
  • 专利详细信息:   WO2021160874-A1 19 Aug 2021 H01L-051/00 202174 Pages: 48 French
  • 申请详细信息:   WO2021160874-A1 WOEP053586 15 Feb 2021
  • 优先权号:   FR001505

▎ 摘  要

NOVELTY - Preparation of composite material comprising core-shell nanoparticles, the core comprises a material capable of absorbing light and the shell comprises graphene, involves (a) providing a substrate as well as an ink comprising nanoparticles capable of absorbing light and encapsulated in a polymeric matrix, (b) depositing the ink on a surface of the substrate, in which the surface or ink comprises a carbon source chosen from a polymer comprising an amide function and an aromatic function, a hexose, carbon nanoparticles and self-assembled monolayers comprising aromatic rings, and (c) illuminating the surface of the substrate covered with ink with pulsed light to bring the nanoparticles to a heating temperature greater than a dissociation temperature of the carbon included in the carbon source, and dissociating the carbon to diffuse or to dissolve in the nanoparticles. USE - Preparation of composite material with core-shell nanoparticles. Uses include but are not limited to electrodes for lithium batteries and triboelectric generators, sensitive elements of gas sensors and temperature-humidity sensors, pressure sensors, transistors and magnetoresistivity applications. ADVANTAGE - The composite material contains nanoparticles which enables excellent absorption of light.