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GREEN CHEMICAL   

Lithium Ion Battery

Cathode Materials

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 Materials

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.

Separator

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.  

Electrolyte

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.