National Chung Shan Institute of Science and Technology

Other

Ching-Jang Lin

Chuen-Ming Gee

Yi-Cheng Cheng

Lain-Jong Li

Bo-Wen Chen

Biing-Jyh Weng

Cheng-Te Lin

Tzeng-Lu Yeh

Pai-Lu Wang

Cheng-Hsiang Hwang

Chi-Wei Liang

Jin-Tarng Hwang

A method for producing the anode material of a lithium ion battery from flexible graphite powder, comprising (A) providing a dry flexible graphite, and pulverizing the dry flexible graphite by a pulverizing step, and filtering the dry flexible graphite with a sieve screen to obtain a uniform flexible graphite powder, (B) performing a ball-grinding step for the uniform flexible graphite powder by mixing with a solvent to obtain a liquid containing flexible graphite; (C) coating the liquid containing flexible graphite on a metal foil, and performing a rolling step to obtain an anode material. Then, the anode material is processed in its shape and is formed into an anode electrode plate. Thereafter, the anode electrode plate is stacked with a lower cover of the battery, a separating paper, a cathode electrode plate, a spring sheet and an upper cover of the battery to assemble the lithium ion battery.

Method for producing anode material of lithium ion battery from flexible graphite powder

Disclosed is a method of producing thin graphene nanoplatelets, and the method includes the steps of providing a carbon precursor and a filling material, using the carbon precursor as a binding agent to mix with the filling material thoroughly, producing a composite material through a forming process, performing a heat treatment of the composite material under an atmosphere and at different temperatures to improve the electrical conductivity and adjust to an appropriate binding strength, perform a carbon conversion of the composite material with a good graphite cyrstallinity to produce a layered graphite structure of a thin graphene nanoplatelet precursor, while obtaining high quality graphene by performing an electrochemical process of the thin graphene nanoplatelet precursor, so as to achieve the mass production of the high quality thin graphene nanoplateletes with a low cost.

Method for producing thin graphene nanoplatelets and precusor thereof

Disclosed is a device designed for a continuous production of graphene flakes by an electrochemical method. The device consists of an electrochemical unit for generating graphene flakes by an electrochemical exfoliation; a filtration unit for separating the graphene flakes from an electrolyte solution; a guiding path connected to the electrochemical unit and transports the graphene flakes and the electrolyte solution into the filtration unit; a grading collection unit for accepting the separated graphene flakes from the filtration unit and separating the graphene flakes by size. The device can achieve the effect of producing high-quality graphene flakes in mass production electrochemically, continuously and quickly.

Device designed for continuous production of graphene flakes by electrochemical method

Growing community of inventors

Taoyuan, Taiwan

Ching-Jang Lin