US 11,916,264 B2
Low-cost, high-performance composite bipolar plate
David Restrepo, Orlando, FL (US); Matthew McInnis, Orlando, FL (US); Sean Christiansen, Orlando, FL (US); and Jeff Bullington, Orlando, FL (US)
Assigned to Asbury Graphite of North Carolina, Inc., Lumberton, NC (US)
Filed by Garmor Inc., Orlando, FL (US)
Filed on Sep. 18, 2020, as Appl. No. 17/025,609.
Application 17/025,609 is a continuation of application No. 15/758,524, granted, now 11,038,182, previously published as PCT/US2016/052292, filed on Sep. 16, 2016.
Claims priority of provisional application 62/221,157, filed on Sep. 21, 2015.
Prior Publication US 2021/0005906 A1, Jan. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 8/00 (2016.01); H01M 8/0263 (2016.01); B29C 48/00 (2019.01); C08K 3/04 (2006.01); B29B 7/88 (2006.01); B29C 43/00 (2006.01); C08J 3/20 (2006.01); C08K 7/06 (2006.01); H01M 8/0213 (2016.01); H01M 8/0221 (2016.01); H01M 8/0226 (2016.01); H01M 8/1018 (2016.01); H01M 8/10 (2016.01); B29K 23/00 (2006.01); B29K 105/00 (2006.01); B29K 507/04 (2006.01); B29K 509/02 (2006.01); B29L 31/34 (2006.01)
CPC H01M 8/0263 (2013.01) [B29B 7/885 (2013.01); B29C 43/003 (2013.01); B29C 48/022 (2019.02); C08J 3/203 (2013.01); C08K 3/04 (2013.01); C08K 3/041 (2017.05); C08K 3/042 (2017.05); C08K 3/046 (2017.05); C08K 7/06 (2013.01); H01M 8/0213 (2013.01); H01M 8/0221 (2013.01); H01M 8/0226 (2013.01); H01M 8/1018 (2013.01); B29K 2023/00 (2013.01); B29K 2105/251 (2013.01); B29K 2507/04 (2013.01); B29K 2509/02 (2013.01); B29K 2995/0005 (2013.01); B29L 2031/3468 (2013.01); C08J 2323/20 (2013.01); C08K 2201/001 (2013.01); C08K 2201/011 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01)] 12 Claims
 
1. A method of making a conductive, composite bipolar plate made of coated particles for making a composite material that enhances a property of the composite material, comprising:
providing a powdered component called a powdered host particle, wherein the powdered host particle is a powder from a resin of polymethylpentene;
providing a second powdered component called a conductive additive that comprises a softening or melting temperature higher than the melting point of the powdered host particle, wherein the conductive additive comprises substantially flat graphene oxide flakes, and wherein the conductive additive is formed in situ in a ball mill prior to the addition of the powdered host particle;
inputting said powdered host particle into the ball mill; and
ball milling said powdered host and said conductive additive for a milling time to sufficiently mix but not melt the powdered host particle into a conductive host-additive particle.