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Battery Materials

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Battery Materials

Cathode Materials

Cathode materials provide Li source in lithium-ion battery, intercalating (extracting) Li during charge (discharge) into (from) its crystal lattice. Li-metal oxide, cathode material in lithium-ion battery, has good durability as well as high electrochemical performance. When compared with materials in Ni-MH and Ni-Cd battery, it is also evironmentally friendly, leading to exponential expansion of application area. LG Chem developed the world's first Li-ion mobile battery by adopting our unique Ni-Mn-Co-oxide. Now high capacity and high power materials for automotive battery are under development.

Cross section of cathode material with different orientation of the particles
Anode Materials

Anode materials are one of the most critical components in a lithium-ion battery. It is a repository and discharger of electrons and lithium ions. Anode materials come in powder form and are applied to the battery with a binder. At present graphite, is used as the carbon for anode materials. LG Chem is developing not only carbon materials but also next generation anode materials like high capacity, high performance for batteries for mobile electronics and electric vehicles.

Spherical graphite-based anode material
Si-based anode material for the next generatio
Safety Reinforced Separator

The LG Chem’s 'safety enhanced separator' is a world 1st separator with a new material concept in nanotechnology. Compared to conventional polyolefin separators, it shows improved thermal/mechanical features, and excellent anti-shock properties. It plays a key role in solving the problem of electrical short circuits. The enhanced battery safety allows development of a wide variety of new batteries such as high capacity batteries and mid-large format batteries for HEV, that once were difficult to develop due to lack of safe materials.

Separators wound on the reel in various widths

Electrolytes help convey the ion carriers along an electrode. Understanding electrolytes takes a thorough background in chemical, physical, and electrochemical properties of electrolytes, and electrolyte/electrode interfacial phenomena. Development and design of high performance electrolytes and additives are underway. Chief accomplishments in this area are long-life electrolytes, ultra-safe electrolytes, high power electrolytes and high voltage electrolytes. Presently in development is an analytical tool for predicting the degree of failure or deterioration of cell performance through the use of various chemical/electrochemical techniques.

Chemical structure model of electrolyte
Related Fields
Related Fields
Chemistry Organic Chemistry, Inorganic Chemistry, Organic Synthesis, Inorganic Synthesis, Electric Chemistry
Chemical Engineering Polymer Science/Engineering, Reaction Engineering
Material Science Inorganic Materials, Polymer Materials
Mechanical/Electric Engineering Mechanical Engineering, Mechanical Design/Optimization, Electronics/Electrical Engineering
Computer Engineering Software Programming
Physics Solid State Physics