Lithium Sulfur is perhaps the most mature of the beyond Li-ion’ battery chemistries with a potential energy density of >600Wh/kg. Also with the potential for substantially reduced costs and improved safety. However, a number of challenges mean that cycle life has been poor. Hence the potential attracts attention and much needed research at the fundamental chemistry stage.
Lithium Sulfur Battery Chemistry Introduction
Lithium Sulfur batteries is one of the promising battery chemistry of the future. This battery chemistry is particularly suitable in the Energy storage systems due to superior theoretical capacity, cost effectiveness and eco friendliness.
- Theoretical Specific Capacity: 1675 mAh/g
- Energy Density 2600 Wh/kg
Today the LI-Ion batteries Cathode is made of various chemistries NMC (Nickel Manganese Cobalt) one of the popular ones. Sulfur as Cathode is a much cheaper option as Sulfur is widely available.
As compared to Lithium Ion Chemistry, Energy density for Li-S is 10 times theoretically. (2600Wh/Kg vs 260/270 Wh/kg)
References:
- LiSTAR – The Faraday Institution’s LiSTAR project is designed to address these challenges. The consortium will generate new knowledge, materials and engineering solutions, thanks to its dual focus on fundamental research at material and cell level, and an improved approach to system engineering.