After many researcher, scientists develop the new types of battery that are formed by inexpensive abundant materials. They store the backup renewable sources of energy in low cost like wind and solar.
Low-cost and inexpensive batteries are aluminum sulfur batteries.
It’s made up of abundant material which is less expensive and have good store backup renewable resource of energy. When larger installation of wind and solar energy power build in all over the world , need of power system growing which is good for economical and provide large backup of energy which provide power in sunset and night. The other battery like lithium based battery are more expensive for other appliances. Other are pumped hydro which required specific topography but it is not available at any time.
That’s why the scientist from MIT and other have developed new kind of battery which made completely by abundant material which is in low cost.
Summary of structure of new concept of battery; new concept of battery are made by aluminum and sulfur which used as two electrode, in between two electrode there are molten salt electrolyte. All these are describe in journal Nature on 24 august 2022.These article are written by MIT Professor Donald Sadoway along with other 15 from MIT and from China, Canada, Kentucky and Tennessee. All want to develop something which is better then lithium ion battery for small scale Stationary storage and automotive usesage. Lithium ion battery are not only expensive it also have flammable electrolyte which are easy for transportation.
Then Sadoway started studying the periodic table and searching for the cheapest earth elements. The earth elements are suitable for used as substitute for lithium. Iron are commercial dominate metal but don’t allow to electrochemical property. However the second most abundant material are aluminum which allow electrochemical reaction. There are three primary components of battery which aluminum, sulfur and rock salt crystal. All the elements are earth abundant material, don’t required to global chain supply. Now, studying what kind of elements put in comparison to aluminumaluminum for other electrode. What type of elements put in between which help to carry ion back and forth while charging and discharging. Sulfur are the cheapest non- metal which used as second electrode material. While using as electrolyte let’s focus on not use volaitile, flammable organic liquid , that have dangerous which might be catch fire in car and other appliances. Sadoway said firstly they tried some polymer but at the end they focus on molten salt. Molten salt have low melting point which are closed to the boiling point of water.
All these three elements are easily available and cheapest. First element are aluminum which are easily available in market as foil sheets. Second elements are sulfur which found from waste products to the processing of petroleum refined. Third are salt, all these elements are safest, not flammable said Sadoway. They did experiment, the team said that the battery cell did hundred cycle at exceptionally high charging rate and in low cost as compare to lithium based. They show that the charging rate has high which depend on working temperature.
Now they use molten salt which haveliw melting point. The biggest disadvantaged of this battery are they form dendrites which have narrow spike of metal . These battery do not required any external heat to maintain the operating temperature. They produce naturally heat while electrochemical reaction by charging and discharging of battery. These battery used as solar, which store the energy in sunlight and these store energy used in night. This activities of battery did every day. This new battery develop by small used like on single house, small to medium office.
