How is graphene applied to lithium batteries?

How is graphene used in lithium batteries? Graphene has been widely used in various research fields. The research field of lithium batteries is no exception. First of all, the theoretical capacity of graphene is higher than that of graphite, and the diffusion rate of lithium ions in it is also faster. Therefore, researchers are more applying graphene to the modification of positive and negative materials, that is, graphene composite materials are used to make electrodes. This is an important difference between graphene batteries and the graphene batteries I mentioned at the beginning. Importantly include graphene-based carbon anode, graphene/silicon anode, graphene/metal oxide anode, graphene/sulfur cathode, etc. The application prospects of graphene-based lithium batteries I think the graphene foam is really blown up. Especially in the battery industry, large-scale processing is unlikely to enter people's lives. The important reasons are as follows: The primary consideration for commercialization is cost. The important use of graphene in lithium batteries is similar to that of conventional carbon/graphite. One is as a conductive agent, and the other is as a possible electrode for inserting lithium materials. The process is very complicated, and the pollution after treatment is serious. The specific surface area of u200bu200bgraphene is very large, which is largely affected by the chemical state. A batch of stability, cycle life and many other detailed factors, the processing process is extremely complicated. The processing of graphene and graphene requires a lot of sulfuric acid, and post-processing is also very troublesome. Graphene can be used as a conductive agent to promote rapid charge and discharge, and theoretically can improve the performance of the multiplier, but if there is no proper dispersion process and the mixture is not uniform, the performance will actually decrease and it is not worth the loss. Therefore, graphene-doped lithium batteries have not been widely used. Due to technical and cost reasons, their prospects are very poor, let alone all-graphene batteries. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.