METHOD FOR PREPARING HIGH-FLUIDITY GRAPHENE CONDUCTIVE PASTE

WIPO Patent Application WO/2019/184289

A1

A method for preparing graphene conductive paste, comprising the following steps: first stripping graphite dispersion liquid under an ultrasonic condition, and then separating to obtain a graphene nanosheet; then mixing the obtained graphene nanosheet, a dispersing agent, and a solvent to obtain a pre-paste; and finally sanding and beating the obtained pre-paste to obtain the graphene conductive paste. A low-temperature and normal-pressure liquid-phase stripping method is selected. A method for graphite-solvent mixing, ultrasonic dispersion, and wet sanding is adopted. The graphene nanosheet is prepared, and then flowing graphene conductive paste is prepared. Graphene can be quickly prepared under mild conditions at a low cost. Moreover, the prepared graphene has a complete laminated structure without surficial decoration, maintains the intrinsic characteristics of a two-dimensional slice layer, has high conductivity and fluidity, and can be applied to the field of lithium batteries, supercapacitors, conductive coatings, etc. as a conductive additive.

WO/2022/068979	SULFUR-FUNCTIONALIZED GRAPHENE, AND USE THEREOF AS LI-S BATTERY CATHODE
WO/2024/089453	SILICON-GRAPHENE-GRAPHITE COMPOSITE
WO/2019/025784	FLUIDIC EXFOLIATION

ZHAO YONGBIN (CN)
SU KAIMIN (CN)
WU KAIFU (CN)
MA LIJUN (CN)
YIN YUQIANG (CN)
ZHANG ZAIZHONG (CN)

PCT/CN2018/109030

October 03, 2019

September 30, 2018

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SHANDONG OBO NEW MAT CO LTD (CN)

C01B32/19

CN104555995A	2015-04-29
CN106882796A	2017-06-23
CN107381559A	2017-11-24
CN105217612A	2016-01-06

UNITALEN ATTORNEYS AT LAW (CN)

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