Massachusetts Institute of Technology A team of MIT research groups has developed a new molten salt battery design that enables large-scale, low-cost and sustainable battery designs that are expected to deliver grid-level energy storage. The new molten salt battery is based on a 50 year The historic sodium sulfide / nickel sulfide battery design has been improved to maintain the electrode at the desired hot melt temperature and charge and discharge.
The researchers chose to use immiscible electrolytes and electrodes to help ensure a safe battery system that would discharge less likely to cause mechanical problems without any undesirable effects such as a fire or explosion. This is comparable to sodium-sulfur (NaS) molten salt batteries proven to be used for grid storage; however, sodium-ion selective membranes must be used for NaS molten salt batteries, but this adds substantial expense and impedance to the battery and, in the event of a thin film rupture There will be a violent reaction and even a fire.
