Lithium Ion Secondary Battery (LIB) is composed of Cathode, Anode and Electrolyte. Lithium ions escape Li ions in the graphite lattice structure and it moves through the membrane into the crystal structure of the positive electrode.
We deal with Li2CO3 and LiOH products that are used as the main raw materials of cathode active materials and we supply alumina (Al2O3), which is the coating material for cathode materials and doping agents.
Anode active materials are classified into artificial graphite, natural graphite, low crystalline carbon, and metal and carbon materials are classified into high crystalline carbon and low crystalline carbon according to the heat treatment temperature. Artificial graphite has a high crystallization structure of graphite by applying high heat of 2,500 ℃ or more, so its structure is more stable than natural graphite and its lifespan is 2 ~ 3 times better.
We cooperate with domestic anode material research institute to develop additives which will control the volume expansion of the silicon and we are introducing such additives to domestic market.
The separators, which are porous polyethylene (PE) and polypropylene (PP) films, are classified into wet and dry depending on the manufacturing process.
Inorganic coatings are applied to the surface to enhance the stability, and during the formation process, the wet separator is expanded by stretching the pores generated when the plasticizer was used as an inorganic solvent additive during the extraction. This will provide excellent strength, elasticity, thickness, pore uniformity, etc.
The lithium-ion battery electrolyte is created by dissolving a certain concentration of co-solvent mixture of cyclic carbonate system with high dielectric constant viscosity and chain carbonate system with low dielectric constant viscosity with lithium salt as electrolyte.