• 专利标题:   Method for film-forming carbonaceous material e.g. graphene used for manufacturing electroconductive film used as negative electrode of lithium cell, involves mixing water content and carbon-type fine powder to form kneading dough.
  • 专利号:   JP2015012134-A, JP5963205-B2
  • 发明人:   MACHIDA S
  • 专利权人:   MIYAKO ROLLER IND CO LTD
  • 国际专利分类:   C01B031/02, H01M004/04, H05K003/12, H05K003/20, B05D001/26, B05D001/28
  • 专利详细信息:   JP2015012134-A 19 Jan 2015 H05K-003/12 201515 Pages: 10 Japanese
  • 申请详细信息:   JP2015012134-A JP136458 28 Jun 2013
  • 优先权号:   JP136458

▎ 摘  要

NOVELTY - The method involves mixing the water content and carbon-type fine powder (A) to form viscous type paste-form kneading dough (2). The kneading dough is supplied on a base material (3). The supplied kneading dough is contactingly rolled with the rolls (4a,4b) and rotated to the base material, and is formed into a film. The film is covered on the kneading dough, and the kneading dough is rolled and formed into the film. The kneading dough is transferred to the base material by rotation of the roll. USE - Method for film-forming carbonaceous material such as graphene, carbon nanotube and graphite used for manufacturing electroconductive film used as negative electrode of lithium cell and film for capacitor in electronic device. ADVANTAGE - The carbonaceous material is formed into a film of uniform thickness thinly, after the carbon-type powder is made into paste-form kneading dough, and supplied and rolled to base material. The occurrence of the crack in the film is avoided, when the rolled roll is peeled easily, and when the roll is separated from the base material. The orientation of the carbonaceous material during the film-forming process is improved and the electro-conductivity of the carbonaceous material is improved. Since the kneading machine is provided, the kneading process is made easy. The productivity of the carbonaceous material is improved. DETAILED DESCRIPTION - The kneading dough is supplied and rolled on both surfaces of the base material, and formed into a film on both surfaces of base material. The kneading dough is rolled with the multistage rolls. An INDEPENDENT CLAIM is included for a film-forming apparatus has a kneading machine (1) which mixes the water content and carbon-type fine powder to form paste-form kneading dough. A roll is set to roll the kneading dough supplied to the base material directly or indirectly from the kneading machine. The film covered on the kneading dough is supplied to the base material from the kneading machine. The film is set to receive the kneading dough supplied from the kneading machine. The running direction of the base material is equipped with the pushing rolls (5a,5b) set to roll the kneading dough rolled with the roll. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view illustrating the process for film-forming carbonaceous material. Kneading machine (1) Kneading dough (2) Base material (3) Rolls (4a,4b) Pushing rolls (5a,5b) Carbon-type fine powder (A)