How do you choose the anode material of lithium battery?

Lithium ion batteries cathode is made the cathode active material carbon materials or carbon materials, adhesives and additives to make paste cement evenly on both sides of copper foil, after drying, rolling.The lithium ion battery can made successfully, the key lies in whether the preparation of the reversible off/embedded lithium ion anode materials.At present, has been used in lithium ion battery anode materials are usually carbon materials, such as graphite, carbon soft (such as coke), hard carbon, etc.Anode materials are exploring the nitrides, PAS, tin oxide, tin alloy anode materials, Nano, and other intermetallic compound, etc.

Choose a good anode materials should follow the following principles: high specific energy;The relative lithium electricity extremely low electrode potential;Charge and discharge reaction reversibility is good;Good compatibility with electrolyte and binder;Small specific surface area (< 10 m2 / g), true density is high (> 2.0 g/cm3);Embedded in the process of lithium size and mechanical stability is good;Rich in resources, low price;Stability, non-toxic side effects in the air.

And about the lithium battery of the anode materials: at present has lithium battery cathode material market including cobalt acid lithium, manganese acid lithium, lithium iron phosphate and ternary materials and other products.The anode material in lithium-ion batteries occupied more than 40% of the proportion in the total cost, and the anode materials directly influences the performance of the technical specifications of the lithium-ion battery, so the lithium electricity occupy the central position in the anode material in lithium-ion batteries.Although the lithium battery cathode material has a broad market, is optimistic outlook.But there are certain lithium battery cathode material technical bottleneck, especially its high capacitance and safety performance has not give full play to the advantages of it.

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