US 12,437,896 B2
Method for producing an electrically conductive carbon conductor with carbon structural forms
Martin Koehne, Asperg (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 18/257,021
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Dec. 2, 2021, PCT No. PCT/EP2021/083898
§ 371(c)(1), (2) Date Jun. 12, 2023,
PCT Pub. No. WO2022/128497, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 10 2020 215 963.7 (DE), filed on Dec. 15, 2020; and application No. 10 2021 202 367.3 (DE), filed on Mar. 11, 2021.
Prior Publication US 2024/0120127 A1, Apr. 11, 2024
Int. Cl. H01B 1/04 (2006.01); H01B 13/00 (2006.01)
CPC H01B 1/04 (2013.01) [H01B 13/0016 (2013.01)] 5 Claims
 
1. A method for producing an electrical carbon conductor from carbon structural forms, which, in order to increase the electrical conductivity of the electrical carbon conductor, are doped with an additive for doping the carbon structural forms, comprising the steps:
producing a liquid dispersion from undoped carbon structural forms and a solvent, wherein the dispersion is additionally mixed with a crystallization inhibitor,
adding the additive to the dispersion and mixing the dispersion, wherein the additive is aluminum fluoride and/or aluminum chlorofluoride, and
producing a conductor strand in fiber or film form to form the carbon conductor, by wet-spinning the dispersion or by depositing the dispersion on a carrier material, and by removing the liquid dispersion from the conductor strand as a liquid phase.