The Structural Role of Carbon Black in Dry Electrode Processing

A great in-depth look at this subject and paper review by Denis Cumming: The conventional framing of carbon black in lithium-ion battery electrodes is electrochemical – it is an electronic conducting agent that enables the formation of the electrical wiring within an electrode. It has typically been specified by loading, surface area and subsequent powder or electrode resistivity. For wet slurry coating, this framing is broadly adequate. The solvent carries components into intimate contact and the carbon performs its conductivity function without much fanfare, or much else being asked of it. Dry electrode processing breaks this assumption. The evidence is accumulating that in the absence of a solvent carrier; carbon black does something considerably more structural, particularly during processing.

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