Indian researchers have claimed a new Lithium Sulfur Battery which can go up to 1600 km on a single charge i.e you can go from Delhi to Mumbai on a single charge in an Electric Vehicle.
- Shiv Nadar University & Institute of Eminence have claimed the development of advance Li-S battery.
- Researchers claim that this battery has Three-times higher energy density.
- Dr Lochab’s team partnered IIT-B’s professor Dr Sagar Mitra.
The world is facing a few major problems some of the most prominent ones are Global Warming and Energy Crises. We have been so dependent on the fossil fuels that almost everything is running on them. Now, when we realized that fossil fuels are no miracle and they will end soon, the world is in chaos trying to find better tech for Green energy harnessing. Another major threat that came into light is degrading air quality giving rise to global warming which is increasing the sea levels and also resulting in submerging of coastal planes and will wipe out the major human population. All this because of the constant use of fossil fuels to drive our vehicle to power our houses and many more things. India has already started working on Era of Green energy projects and few examples are solar power plants in Madhya Pradesh, Solar pumps for irrigation, and all-electric vehicles by 2028.
Shiv Nadar University and IIT-B came together to develop a tech for the production of Lithium-Sulfur battery which is more cost-effective and energy-efficient in comparison to traditional lithium-ion batteries. The team came up with an idea of how to make Li-S battery more eco-friendly and cost-effective, so they came up with the idea of the usage of petroleum by-products, agro- waste elements and co-polymers such as Cardanol (a by-product of cashew processing) and Eugenol (clove oil) as cathodic materials.
“The research focuses on the principle of green energy to find a solution that addresses the requirements of industries and the environment, simultaneously. The capability of three times more energy density, coupled with being significant safer technology, holds the promise of accelerating the adoption of clean, battery-led energy across multiple domains”Dr Bimlesh Lochab, Associate Professor at Shiv Nadar University.
Now moving one step further Indian Scientists at IIT Bombay have come up with a Battery prototype that will be able to run any vehicle for 1600 Km.
While purchasing the electric product the primary concern of any customer is what if I have to travel long distances, where will I charge my vehicle ? Charging in the middle of the journey will slow them down significantly. At the moment, Tesla is one of the most loved and reliable electric cars. It lets you travel for 640 km on a single charge when battery is perfectly working and the terrain is in favor of your drive. Tata has recently promised its customer an electric car which will be able to go 1000 km on a single charge, a significant improvement over Tesla but still, the problem is the same for large countries like India which runs more than 2000 Km in extent. So, this new battery will solve the problem.
Tech Inside the Container:
Li-S (Lithium-Sulfur) batteries dates back to the 1960s, when Herbert and Ulam patented in 1962. Since then the technology is being improved by various scientists around the globe. Li-S battery can take over the Lithium-ion battery in the future because of their higher energy density and reduced cost due to the use of Sulfur. A primary battery employs lithium or lithium alloy as anodic material, Sulfur as cathodic and an electrolyte made up of aliphatic saturated amines. Over the years, many changes and significant improvements have been made. These batteries have such a higher charge density and the nonlinear discharge and charging response to the cell, a micro-controller and another safety circuitry is needed along with voltage regulators are needed to manage cell operation and prevent rapid discharge.
As India is advancing toward its green energy project this research can play a significant role in the development of superior quality of electric vehicles, drones, and maybe in aviation technology. Dr Lochab tried explaining her research in this way:
For example, an electric car with a 400 km range using conventional Lithium-ion batteries can now quadruple its range to 1600 Km on a single charge with this new and improved technology, while being compact and much safer to use than traditional Lithium-ion batteries. To put this in perspective, it could mean driving from Delhi to Mumbai on a single charge and still being left with power.
The question arises that if these batteries are so useful and battery why they haven’t been used till now? The answer is “Shuttle Effect”. Lithium polysulfide is highly soluble in the electrolyte that was being used in these batteries. This process results in the continuous leakage of active material from the cathode, lithium corrosion, low coulombic efficiency, and low battery life. Also, this results in the self-discharge of Li-S batteries.
When they were asked how they came over these challenges Sagar Mitra, IIT Bombay’s professor said,
“The use of cardanol for sulfur-based structure as an unconventional application to create cathode materials in this generation Li-S battery technology has exhibited enhanced capacity retention and longer battery life in a very significantly smaller battery unit. The sulfur for the battery is sourced from industrial waste and cardanol is sourced from bio-renewable feed-stock that is easily available, non-toxic and environment friendly.”
Benefit over traditional battery:
- Light weight.
- Cost efficient.
- Higher charge density.
- Agro-based product.
- Higher output.
- Indian Technology.
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