Researchers at Rensselaer Polytechnic Institute have discovered a technique which could enhance functioning of lithium-ion battery.
Lithium-ion batteries have become increasingly popular because of their capacity to store higher energy. This development not only improves battery life but also enhances its conductivity.
Challenges in Replacing Cobolt Oxide with Vabadium Disulfide
In a traditional lithium-ion battery, anode is made of graphite, while cathode contains lithium cobalt oxide. However, researchers improved battery performance replacing cobolt oxide with vanadium disulfide. This is because vanadium disulfide has a higher emery storing capacity due to higher electron density than cobolt oxide. A higher anode density can improve charge storage capacity of the battery. Along with this, it has a faster charging capability due to its high conductivity.
The only problem occurs while replacing cobol oxide with vanadium disulfide is its higher electron instability. This property of vanadium disulfide could reduce battery life.
Rensselaer Polytechnic Institute researchers not only found the cause of this inability but also came up with a solution that could solve this problem. They coated vanadium disulfide with titanium disulfide (TiS2) nanolayer. This could stabilize VS2 flakes and improve their performance within the battery. This is because TiS2 coating acts as a buffer layer, it holds VS2 material together and provides good mechanical support.
Thus, the way to make batteries better is to improve materials used for anodes. This could fast-track battery functioning in several sectors such as consumer electronics, solar grid storage, and electric vehicles.