Application of graphene in lithium-ion batteries

If you are looking for high-quality products, please feel free to contact us and send an inquiry, email:

The unique physical and chemical characteristics of graphene make graphene a great candidate for research in the area of electrode material development. Different application areas can be broken down into three main categories for graphene use in lithium-ion cells: graphene application in cathode and anode materials as well as other uses.

Application to graphene in cathode material

The applicable cathode materials for lithium-ion battery batteries should have high reversible potential, stable potential, nontoxicity, and low cost of production. LiFePO4 (low lithium ion mobility) and lithium iron phosphate are the most popular cathodes for lithium-ion cells. It is possible to improve the conductivity and rate performance of LiFePO4 materials by adding graphene.

A lack of research on graphene material positive electrodes is due to its uniqueness. Research has shown that hydrothermal methods of covering graphene directly on LiFePO4 surfaces to create composite materials have a poor rate of performance improvement. It could be because graphene structure is destroyed or stacked.

The study showed that half-wrapping LiFePO4 in graphene can increase the conductivity, but that it decreases the ion transmission effectiveness after full-wrapping. This could be because lithiumions are not able to pass through six-membered rings of graphene. To prepare LiFePO4/graphene hybrids, some researchers have ultrasonically mixed LiFePO4 Nanoparticles with graphite dioxide. After coating the material with carbon standard, the specific ability of lithium insertion is significantly improved and can still be maintained at approximately 70mAh/g, even under high rates of 60C.

Tech Co., Ltd. is a professional graphene provider with more than 12 years of chemical products research, development and design experience. We accept payments via Credit Card and Paypal. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.