Week 6 Session 13
1.Lithium Sulfur Battery:
The cathode in Lithium - Ion batteries is composed of metal oxides from Lithium, Nickel. Manganese, and Cobalt. Among the three metal oxides, Cobalt accounts for upto 20% of the total weight of the cathode. As EV production increases around the world,the gobal supply chain of Cobalt has been severely hit.
Over the decade, significant progress has been made to reduce the dependence on a metal that is prone to supply shocks.Among all the technologies that are being currently studied, the Sulfur-Lithium battery is the one that is leading the race to replace Lithium-Ion batteries as the sources of energy storage in the future.
In the Lithium-Sulfur battery, the anode is replaced with Lithium while Sulfur serves as the cathode. Discharging the battery produces Lithium-ions that move through the electrolyte. These ions interact with sulfur at the cathode end converting the sulfur into Lithium Polysulphides. This process is reversed while charging.
The higher energy density of Lithium - sulfur renders itself variable to be used in electricity storage from renewable sources.
But, Sulfur has low conductivity and requires additional carbon to help creat polysulphides during this discharging phases. Repeated creation of Polysulphides in the cathode end leads to an eventual decrease in the concentration of sulfur and the number of recharges.
2.Cloud - based BMS:
The BMS monitors the SOH (State of Charge), voltage, current, and temperature ofthe battery. It play a vital role during the charging and dis charging phase of the battery by maintaining a stable temperature. During cases where the temperature of the battery increases,the BMS regulates the heat by controlling the flow of coolants in the system.
But, the BMS only has one to four sensors connected to the battery at any given time. Reducing the data points that can be collected from the battery. When the battery is stressed from more than one anomaly, this can serve as a vulnerability leading leading to system collapse.
Cloud- based technologies have started to permeate most aspects of everyday life through IoTs. Leveraging the computing power of cloud - based technologies allows for an exponential increases in the processing capabilities of battery management system. Cloud - based BMS will be able to draw the BMS data obtained from other vehicle in the network. Using a high - fidelity mathematical model of the battery pack, cloud- based BMS other places where the battery temperature are higher than normal.
1.Battery system:(Data generation)
2.BMS slave:(Data sensing)
3.IoT component:(Data Collection)
4.Cloud:(Data storage)
5.API:(Data Analytics)
6.UI:(Data Visualizations)