Carbon Coating

Carbon Coating Lithium-ion Battery Grade Graphite

The reason that carbon coating spherical shaped graphite is to be used in lithium-ion batteries is that the graphite needs to have a sensitivity to propylene carbonate (PC) - based electrodes. PC is an essential solvent for the electrolytes of lithium-ion batteries. The carbon coating (>1wt%) keeps the graphite surface from having direct contact with the electrolyte. Today, there are a number of ways to coat the material. Popular ways include thermal vapour decomposition (TVD) and chemical vapour disposition (CVD).

Our system is a continuous feed from the spherical shaping system into the drying (moisture removal) chamber where the pre sized material flows into a vacuum chamber

Once the moisture has been completely removed, the material is forced with air pressure into the high-pressure vessel. The vessels are lined with electromagnetic bars that create enough force to keep the graphite in colloidal suspension. A very small electrical charge is applied to the material. The material is introduced to the diamagnetic carbon through the feed port and blends with the oxygen. The carbon repels the magnetic field and is attracted to the graphite, dispersing onto the mildly charged graphite, creating a nano level coating. The material on a continuous feed enters the cooling chamber, and then through to the output holding chamber. See diagram below. Previously announce in a press release dated Dec 1, 2015.

Crbon Coating Lithium.jpg

Carbon Coating Lithium-ion Battery Grade Graphite

The reason that carbon coating spherical shaped graphite is to be used in lithium-ion batteries is that the graphite needs to have a sensitivity to propylene carbonate (PC) - based electrodes. PC is an essential solvent for the electrolytes of lithium-ion batteries. The carbon coating (>1wt%) keeps the graphite surface from having direct contact with the electrolyte. Today, there are a number of ways to coat the material. Popular ways include thermal vapour decomposition (TVD) and chemical vapour disposition (CVD).

Our system is a continuous feed from the spherical shaping system into the drying (moisture removal) chamber where the pre sized material flows into a vacuum chamber

Once the moisture has been completely removed, the material is forced with air pressure into the high-pressure vessel. The vessels are lined with electromagnetic bars that create enough force to keep the graphite in colloidal suspension. A very small electrical charge is applied to the material. The material is introduced to the diamagnetic carbon through the feed port and blends with the oxygen. The carbon repels the magnetic field and is attracted to the graphite, dispersing onto the mildly charged graphite, creating a nano level coating. The material on a continuous feed enters the cooling chamber, and then through to the output holding chamber. See diagram below. Previously announce in a press release dated Dec 1, 2015.

Crbon Coating Lithium.jpg