FLUOROGRAPHENE AND PRODUCTION METHOD OF THE SAME, COMPOSITE MATERIAL, LITHIUM SECONDARY BATTERY, OPTICAL COMPONENT, ELECTRONICS COMPONENT AND GAS BARRIER FILM

• Main Authors: YAOKAWA RITSUKO, TEZUKA HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 23.05.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a fluorographene having a relatively greater F content and a production method of the fluorographene, and a composite material, lithium secondary battery, optical component, electronics component and gas barrier film using the fluorographene.SOLUTION: The fluorographene contains F, C and O, satisfying 38.6 atom%≤[C]≤57.4 atom%, 0.09 atom%≤[O]≤9.8 atom% and [C]+[F]+[O]=100 atom%. Preferably, the fluorographene further satisfies 1≤[F]/[C]≤1.3. The fluorographene is obtained by synthesizing a graphene oxide from graphite and allowing the graphene oxide to react at a temperature of higher than 200°C and equal to or lower than 500°C in an atmosphere of a F-containing gas.SELECTED DRAWING: Figure 14 【課題】Ｆ含有量が相対的に多いフッ化グラフェン及びその製造方法、並びに、フッ化グラフェンを用いた複合材料、リチウム二次電池、光学部品、エレクトロニクス部品、及びガスバリア膜を提供すること。【解決手段】フッ化グラフェンは、Ｆ、Ｃ、及びＯを含み、３８．６ａｔｏｍ％≦[Ｃ]≦５７．４ａｔｏｍ％、０．０９ａｔｏｍ％≦[Ｏ]≦９．８ａｔｏｍ％、及び[Ｃ]＋[Ｆ]＋[Ｏ]＝１００ａｔｏｍ％を満たす。フッ化グラフェンは、１≦[Ｆ]／[Ｃ]≦１．３をさらに満たすのが好ましい。このようなフッ化グラフェンは、黒鉛から酸化グラフェンを合成し、Ｆ2含有ガス雰囲気下において、２００℃超５００℃以下の温度で反応させることにより得られる。【選択図】図１４