# US 10,870,761 B2 · High-conductive carbon black with low viscosity > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,870,761 B2 - Document ID: US10870761B2 - Status: Granted - Kind: B2 - Application number: 15/736,360 - Filed: 2016-07-08 - Published: 2018-06-07 - Granted: 2020-12-22 - Earliest claimed: 2015-07-09 - Assignees: ImerTech SAS - Applicants: Imerys Graphite & Carbon Switzerland Ltd. - Inventors: Michael E. Spahr; Simone Zürcher; Marlene Rodlert-Bacilieri; Flavio Mornaghini; Thomas M. Gruenberger - Web page: https://patentgrep.com/patent/US10870761B2 ## CPC - C09C 1/48: Carbon black - C08K 3/04: Carbon - H01B 1/04: mainly consisting of carbon-silicon compounds, carbon or silicon - H01M 4/625: {Carbon or graphite} - C01P 2002/72: by d-values or two theta-values, e.g. as X-ray diagram - C01P 2004/04: obtained by TEM, STEM, STM or AFM - C01P 2006/12: Surface area - C01P 2006/16: Pore diameter - C01P 2006/17: Pore diameter distribution - C01P 2006/19: Oil-absorption capacity, e.g. DBP values - C01P 2006/40: Electric properties - C08K 2201/001: Conductive additives - C08K 2201/006: Additives being defined by their surface area - C08L 2207/062: HDPE - H01M 4/131: Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx - Y02E 60/10: Energy storage using batteries - C09C: TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES (treatment of materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone C04B14/00, C04B18/00, C04B20/00); PREPARATION OF CARBON BLACK {; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS} - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract The present disclosure relates to novel carbon black materials characterized by a good retention of their structure in the compressed state, as shown, e.g., by a relatively high ratio of compressed OAN/OAN. The materials may inter alia be characterized by a low viscosity in dispersions and by exhibiting low electrical resistivity. Such materials can be advantageously used in various applications, for example in the manufacture of electrochemical cells such as lithium ion batteries or as conductive additive in polymer composite materials. The disclosure also describes a procedure for making such a material as well as well as downstream uses and products comprising said carbon black material. ## Claims ### Claim 1 A carbon black material comprising: (i) a ratio of cOAN/OAN of at least about 40%; (ii) a BET SSA of between about 80 and about 400 m2/g; and (iii) a fraction of micropores of at least 0.30. ### Claim 2 (depends on 1) The carbon black material according to claim 1, further comprising having a cOAN of between about 100 and about 250. ### Claim 3 (depends on 1) The carbon black material according to according to claim 1, further comprising an OAN of between about 150 and about 350. ### Claim 4 (depends on 1) The carbon black material according to claim 1, wherein the ratio of cOAN/OAN is less than 75%. ### Claim 5 (depends on 1) The carbon black material according to claim 1, wherein the fraction of micropores of the material is at least about 0.50. ### Claim 6 (depends on 1) The carbon black material according to claim 1, further comprising an external surface area based on the statistical thickness method (STSA) of between about 70 and about 300 m2/g. ### Claim 7 (depends on 1) The carbon black material according to claim 1, further comprising a pore size of the intra-aggregate porosity (IF), determined by mercury intrusion porosimetry, of between about 35 and about 70 nm. ### Claim 8 (depends on 1) The carbon black material according to according to claim 1, further comprising a xylene density of between about 1.80 and 2.00 g/cm3. ### Claim 9 (depends on 1) The carbon black material according to claim 1, further comprising an interlayer spacing c/2 of between about 0.3580 and about 0.3640 nm. ### Claim 10 (depends on 1) The carbon black material according to claim 1, comprising a viscosity of below about 5000 mPa·s when determined in a 5 wt % dispersion of said carbon black material in N-methyl-2-pyrrolidone (NMP) at a shear rate of 13 s−1. ### Claim 11 (depends on 1) The carbon black material according to claim 1, comprising having a powder electrical resistivity of between about 45 and about 230 Ω·cm, when present in a powder comprised of 2 wt. % of said carbon black material in 98 wt. % Lithium Nickel Manganese Cobalt Oxide (NMC). ### Claim 12 (depends on 1) The carbon black material according to claim 1, comprising having an electrode resistivity of between about 400 and about 1200 Ω·cm, when determined by a 2-point measurement in an electrode containing a film comprised of 1 wt. % of said carbon black material, 3 wt. % of PVDF binder in 96 wt. % NMC. ### Claim 13 (depends on 1) The carbon black material according to claim 1, comprising having an electrode resistivity of between about 400 and about 1100 Ω·cm, when determined by a 4-point measurement in an electrode containing a film comprised of 1 wt. % of said carbon black material, 2 wt. % of PVDF binder in 97 wt. % NMC. ### Claim 14 (depends on 1) The carbon black material according to claim 1, comprising having a volume electrical resistivity in high density polyethylene (HDPE) of (i) between about 100 to about 1000 Ω·cm, when the HDPE composite material contains 12.5 wt % of said carbon black material, and (ii) between about 10 to about 100 Ω·cm, or between about 20 to about 80 Ω·cm, when the HDPE composite material contains 15 wt % of said carbon black material. ### Claim 15 (depends on 1) A conductive composition comprising the carbon black material according to claim 1, and one or more of another carbon black, fine graphite, exfoliated graphite, nano-graphite, sub-micron graphite, exfoliated graphite, graphene, carbon nano-tubes, and carbon fibers. ### Claim 16 (depends on 1) A conductive polymer composite material comprising the carbon black material according to claim 1. ### Claim 17 (depends on 1) An electric vehicle, hybrid electric vehicle, or plug-in hybrid electric vehicle comprising a lithium ion battery, wherein said lithium ion battery comprises the carbon black material according to claim 1. ### Claim 18 (depends on 1) A ceramic, ceramic precursor material, or a green material comprising the carbon black material according to claim 1. ### Claim 19 (depends on 1) A dispersion comprising a liquid and the carbon black material according to claim 1. ### Claim 20 (depends on 1) A product comprising the carbon black of claim 1, wherein the product is an energy storage device, a lithium ion battery, an electrode, or a carbon brush. ### Claim 21 (depends on 1) The carbon black material according to claim 1, wherein the carbon black material comprises an average particle size of 30-40 nm.