![]() The negative electrode of a lithium battery is usually composed of graphite, etc., which has good electrical conductivity. Electron transport rate, while absorbing and retaining electrolyte, provides more electrolyte interfaces for lithium ions, thereby improving battery charging efficiency and extending lithium ion battery life. Therefore, a certain amount of conductive agent will be added when making the positive electrode sheet, so that the conductive material fills the gap between the active materials of the positive electrode material, which is used to increase the conductivity of electrons and lithium ions, and accelerate the process by forming a conductive network on the surface of the active material. However, these positive electrode materials have poor conductivity and are difficult to meet the performance requirements of lithium batteries. ![]() Positive electrode: The positive electrode materials of lithium batteries mainly include lithium iron phosphate, ternary materials, lithium cobalt oxide, etc., which provide lithium sources for lithium batteries. The conductive agent is an auxiliary material for lithium batteries, which is mixed with positive electrode materials and negative electrode materials to produce electrode sheets. There are currently three types of mainstream conductive agents, including conductive carbon black, carbon nanotubes and graphene. In the lithium battery industry chain, the conductive agent is one of the important auxiliary materials for the positive and negative electrode materials of lithium batteries, accounting for about 5% of the cost of lithium battery materials. Market situation of conductive carbon black. ![]() Upstream and downstream situation of conductive carbon black.Preparation process of conductive carbon black.Physical properties of conductive carbon black. ![]()
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