GRAPHITE SHEET AND METHOD FOR MANUFACTURING SAME

• Main Authors: BAEK, Jonggab, KYUN, Myung-Ok, SEO, Jung Doo, PARK, Jong Hwi, OH, Jun Rok, PARK, Ki Ryun, KIM, Jung-Gyu
• Format: Patent
• Language: English; French; Korean
• Published: 03.11.2016
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOUNDS THEREOF; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; INORGANIC CHEMISTRY; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

The present invention provides a graphite sheet having a ratio of thermal diffusivity in horizontal and vertical directions of 300 or more. Also, the present invention provides a graphite sheet having a ratio of thermal diffusivity in a vertical direction of 2.0 ㎟/s or less. The graphite sheet has excellent thermal conductivity in horizontal and vertical directions and excellent flexibility at the same time and can be produced at low manufacturing cost, thereby holding an economic advantage. La présente invention concerne une feuille de graphite possédant un rapport de diffusivité thermique dans les sens horizontal et vertical supérieur ou égal à 300. En outre, la présente invention concerne une feuille de graphite possédant un rapport de diffusivité thermique dans un sens vertical inférieur ou égale à 2,0 ㎟/s. La feuille de graphite possède une excellente conductivité thermique dans le sens horizontal et vertical et en même temps une excellente flexibilité, et peut être produite à faible coût de fabrication, maintenant ainsi un avantage économique. 본 발명은 수평/수직 방향의 열확산율비가 300 이상인 그라파이트 시트를 제공하며, 또한, 본 발명은 수직 방향의 열확산율이 2.0 ㎟/s 이하인 그라파이트 시트를 제공한다. 이러한 그라파이트 시트는 수평 및 수직 방향의 열전도율이 우수한 동시에, 유연성이 우수할 뿐만 아니라, 저렴한 제조 비용으로 생산이 가능하여 경제적으로도 이점이 있다.