US 12,322,547 B2
Integrated polymer materials for use in electrochemical cells
Donald James Highgate, Cambridge (GB); Brendan James Howlin, Cambridge (GB); and Winnie Tang, Cambridge (GB)
Assigned to Superdielectrics Supercap Ltd, Cambridge (GB)
Appl. No. 17/757,648
Filed by SUPERDIELECTRICS SUPERCAP LTD, Cambridge (GB)
PCT Filed Dec. 18, 2020, PCT No. PCT/GB2020/053305
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/123823, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 1918896 (GB), filed on Dec. 19, 2019.
Prior Publication US 2023/0015905 A1, Jan. 19, 2023
Int. Cl. H01G 11/56 (2013.01); C08K 7/06 (2006.01); H01G 11/84 (2013.01)
CPC H01G 11/56 (2013.01) [C08K 7/06 (2013.01); H01G 11/84 (2013.01); C08K 2201/001 (2013.01)] 34 Claims
OG exemplary drawing
 
1. A process of integrating electrically conductive material into a surface layer of an electrically conductive polymer, comprising the steps of:
including an electrically conductive material in a polymerisation mixture capable of forming an electrically conductive polymer, such that the material is provided across an uppermost and/or a lowermost region of the polymerisation mixture; and
subsequently polymerising the polymerisation mixture,
wherein the density of the electrically conductive material is higher than that of the polymerisation mixture, and
wherein either:
a) the process further comprises allowing the polymerisation mixture to stand for at least 30 seconds after the inclusion of the electrically conductive material, thereby allowing the electrically conductive material to settle across the lowermost region of the polymerisation mixture under gravity, prior to polymerising the polymerisation mixture;
b) the process further comprises subjecting the polymerisation mixture to a centrifugal force after the inclusion of the electrically conductive material, thereby allowing the electrically conductive material to settle across the lowermost region of the polymerisation mixture, prior to polymerising the polymerisation mixture; or
c) the electrically conductive material is included in the polymerisation mixture by arranging the electrically conductive material across a supporting surface, and applying the polymerisation mixture to the electrically conductive material across the supporting surface.