US 12,226,996 B2
Laminated graphene based thermally conductive film and method for manufacturing the film
Johan Liu, Västra Frölunda (SE); and Nan Wang, Mölndal (SE)
Assigned to SHT Smart High-Tech AB, Gothenburg (SE)
Filed by SHT Smart High-Tech AB, Gothenburg (SE)
Filed on Nov. 30, 2020, as Appl. No. 17/106,650.
Application 17/106,650 is a continuation of application No. PCT/SE2018/050593, filed on Jun. 7, 2018.
Prior Publication US 2021/0078288 A1, Mar. 18, 2021
Int. Cl. B32B 9/00 (2006.01); B32B 5/16 (2006.01); B32B 7/027 (2019.01); B32B 7/12 (2006.01); B32B 9/04 (2006.01); B32B 37/12 (2006.01); B32B 37/24 (2006.01); B32B 38/00 (2006.01); B32B 38/10 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); C01B 32/194 (2017.01); F28F 3/02 (2006.01); F28F 21/02 (2006.01); H05K 7/20 (2006.01)
CPC B32B 9/007 (2013.01) [B32B 5/16 (2013.01); B32B 7/027 (2019.01); B32B 7/12 (2013.01); B32B 9/04 (2013.01); C01B 32/194 (2017.08); F28F 3/02 (2013.01); F28F 21/02 (2013.01); H05K 7/2039 (2013.01); B32B 2037/1253 (2013.01); B32B 37/24 (2013.01); B32B 38/004 (2013.01); B32B 38/10 (2013.01); B32B 2255/205 (2013.01); B32B 2255/26 (2013.01); B32B 2264/108 (2013.01); B32B 2307/302 (2013.01); B32B 2313/04 (2013.01); B32B 2319/00 (2013.01); B32B 2333/00 (2013.01); B32B 2363/00 (2013.01); B32B 2375/00 (2013.01); B32B 2379/08 (2013.01); B32B 2457/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); Y10T 156/1062 (2015.01); Y10T 156/108 (2015.01)] 13 Claims
OG exemplary drawing
 
1. A method of manufacturing a vertically aligned laminated graphene based thermally conductive film, the method comprising:
providing a first graphene film;
providing a second graphene film;
arranging a layer of nanoparticles on a surface of the first and second graphene film, wherein the nanoparticles are configured to improve an adhesion strength between the first and second graphene films;
arranging an adhesive on the layer of the nanoparticles on the first graphene film;
attaching the second graphene film to the first graphene film by means of the adhesive and the layer of nanoparticles;
forming a layered film comprising a predetermined number of graphene film layers by repeating the steps of arranging a layer of nanoparticles, arranging an adhesive and attaching a graphene film; and
laminating the layered film by applying pressure and heat to cure the adhesive, thereby forming a laminate film;
cutting the laminate film at an angle in relation to a surface plane of the film to form the vertically aligned laminated graphene based thermally conductive film.