Skip to main content

Graphite Powders as Anode Materials for Lithium Ion Batteries

The lithium ion batteries are interested nowadays because of their high capacity and being environmentally friendly. Lithium ion batteries are one of the most important power sources and they are widely used in laptop computers and mobile phones due to their high energy density. Lithium ion batteries are also effective for using in hybrid electric vehicle. Of course in this kind of applications large size of lithium batteries are used.
As all we may know lithium ion batteries are consist of two parts; cathode and anode. When we look at the researches about the anode part of lithium ion batteries, we can see that in this studies it is aimed to improve material capacity and cyclability.
To get better result for improving capacity and cyclability, graphite powders can be used in lithium ion batteries as anode materials. Graphite anodes provide efficiency, reversible capacity and cycle stability to lithium ion batteries when they are used as anode materials. Also it is possible to improve the properties of lithium ion batteries by using graphite powders with the higher graphitization degree, higher purity, more suitable particle size distribution.
So far so good, it is also possible to have more improved performance from graphite powders. If you treat graphite powder with oxidative solutions of hydrogen peroxide, cerium sulfate, nitric acid and ammonium persulfate, the electrochemical performance of lithium ion batteries will improve.
Cycle numbers of lithium ion batteries with graphite anode materials may be a problem sometimes but there is a solution for that. To improve the cycle numbers of these kinds of batteries, graphite powders may be coated by aluminum fluoride. The aluminum fluoride coating will not change the properties of graphite but there will be a significant increase in the capacity and cycle number in lithium ion battery.
If you need graphite powders an anode materials used in lithium ion batteries, you may check the links given below and give an order:
Labels:

Comments

Post a Comment

Popular posts from this blog

Titanium Carbide Powders and Applications

Titanium carbide which has the chemical formula of TiC attracted great interest for many structural applications due to its extremely high melting temperature, high hardness, high chemical resistance and good electrical conductivity. Therefore titanium carbide can be used in cutting tools, grinding wheels, wear-resistant coatings, high temperature heat exchangers, magnetic recording heads, turbine engine seals, and bullet-proof vests, etc. In addition, a promising field of application comprises plasma and flame spraying processes in air, where titanium carbide-based powders show high-phase stability. TiC(Titanium Carbide Powder) (325 mesh, 99,9+%)  can also be used in biomedical implant devices. Materials used for biomedical implant devices must satisfy a variety of property demands, which are often mutually exclusive. Further, different parts of a device demand different material properties. These factors often make it difficult to manufacture a medical device using a...
Post a Comment
Read more

New Way of Deaf-Mute Communication with 3D Graphene

Image retrieved from: http://blogs.rsc.org/cc/2016/09/01/3d-graphene-adds-dimension-to-deaf%E2%80%93mute-communication/ Chinese scientists have developed wearable electronic device with conductive 3D graphene structure to translate sign language into written text. This technology can be applied by injecting graphene ink from a syringe under printed electronic field. For medical field, such as adhesive patches which determine heart, brain signal and neural activity, wearable and bio-integrated medical devices are very important. Due to noticeable properties of cast graphene, for example a 2D honeycomb lattice, excellent mechanical and electrical behaviors, Graphene has an important material in warble technology. However, it is difficult to preserve advantages of Graphene material in a 3D material which has an information about forces from every angle. Yanlin Song  and co-workers at the University of the Chinese Academy of Sciences, Beijing, and Shenyang Jianzhu University...
Post a Comment
Read more

Carbon Nanotubes Doped with Graphene Nanopowder and Applications

Carbon nanotubes and graphene are different forms of carbon atom based materials. They have different properties and can be used in various applications. But what happens if we use them as a hybrid structure? The excellent mechanical, physical, and chemical properties of low-dimensional carbon materials like graphene and carbon nanotube have enabled them as promising building blocks for three-dimensional nanoarchitectures. In this regard, extensive interests have been attracted to synthesize graphene and carbon nanotube hybrid structures. Earlier works suggested that  Carbon Nanotubes Doped with Graphene Nanopowder (52 wt% Graphene )  is a promising solution for quick energy dissipation, which could enhance interface thermal conductivity of the ‘building blocks’ for future nanoscale mechanical and electrical devices. In the electricity perspective, it is found that ‘CNT pillared-graphene’ system would extend the excellent electrical conductivity of graphene and nanotube to ...
Post a Comment
Read more