公开(公告)号：US10826051B2

公开(公告)日：2020-11-03

申请号：US15383743

申请日：2016-12-19

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Biing-Jyh Weng ,  Bo-Wen Chen ,  Ching-Jang Lin ,  Cheng-Hsiang Hwang ,  Jin-Tarng Hwang

IPC: H01M4/04 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/02

Abstract: 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.

公开(公告)号：US09327981B2

公开(公告)日：2016-05-03

申请号：US13719206

申请日：2012-12-18

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chuen-Ming Gee ,  Tzeng-Lu Yeh ,  Yi-Cheng Cheng ,  Ching-Jang Lin ,  Cheng-Te Lin ,  Lain-Jong Li

IPC: C25B1/00 ,  C01B31/04

CPC classification number: C01B31/0446 ,  C01B32/184 ,  C01B32/194 ,  C25B1/00

Abstract: 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.

Abstract translation: 公开了一种生产薄片石墨烯纳米片的方法，该方法包括提供碳前体和填充材料的步骤，使用碳前体作为粘合剂，充分混合填充材料，通过成型工艺生产复合材料 在气氛和不同温度下对复合材料进行热处理，以提高导电性并调节至适当的粘合强度，以良好的石墨安装性进行复合材料的碳转化，以生产出一种层状石墨结构 薄的石墨烯纳米血小板前体，同时通过执行薄的石墨烯纳米血小板前体的电化学过程获得高质量的石墨烯，从而以低成本实现高质量薄的石墨烯纳米片剂的大规模生产。