Graphene color paste, preparation method thereof and application in fuel cells

• Main Authors: FAN XINCHUAN, CHEN XIAOFENG, HUANG YANGDI, CHEN ZIYIN, ZHANG YIJUN, CHEN DIANYU, WANG XINQIANG, HU YUE, LI NINGYAN, ZHAN HUANHUI
• Format: Patent
• Language: Chinese; English
• Published: 24.09.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The invention discloses a graphene color paste, which comprises the following raw materials in parts by weight: 10-18 parts of graphene, 1-10 parts of a dispersing agent, 3-5 parts of a stabilizing agent, 5-10 parts of a cosolvent, 1-3 parts of a defoaming agent and 8-28 parts of water. The preparation of the graphene color paste by adopting the above raw materials includes the steps of adding water, the dispersing agent, the stabilizing agent and the cosolvent into a high-speed shearing and grinding machine, and carrying out pretreatment for 10-15min to obtain a material A; adding graphene into the material A and stirring to obtain a material B; and adding the defoaming agent into the material B in the step (3) and stirring to obtain the graphene color paste. In the invention, the graphene color paste prepared by adopting graphene as the main raw material does not have the conditions such as agglomeration and non-uniform dispersion when being applied to the fuel cells. 本发明公开了一种石墨烯色浆，包括以下重量份数的原料：石墨烯10-18份、分散剂