New type liquid metal battery works at room temperature
Posted On March 23, 2021
A new type of liquid metal battery operates at room temperature
Engineers have created a liquid metal battery that works even at room temperature and has a number of additional advantages over existing devices..
Most modern batteries are made up of solid-state electrodes such as lithium-ion. They have significant energy consumption, but their performance is gradually deteriorating. There are also batteries with liquid electrodes, which usually require temperatures above 240 for normal operation. °C. They are capable of efficiently storing and delivering energy, but they do not have such a high capacity, or they require constant heating..
A team of researchers from the University of Texas at Austin has unveiled a new liquid metal battery that combines the best of two types. According to the developers, the created prototype can function normally at a temperature of 20 °C, accumulate a sufficiently large amount of energy, transport it efficiently and work stably over a long period of time.
The anode of the new battery consists of an alloy of potassium and sodium, while the cathode is made of a gallium-based alloy. Since its main components are in a liquid state, the device is easy to scale..
In the future, the team plans to find a cheaper alternative to gallium (the only expensive material in the structure) to reduce costs, as well as improve electrolytes to increase the power of operation at room temperature..
Researchers are also working to improve other types of batteries. For example, in November Skoltech introduced a high-power potassium battery that charges in 10 seconds..
text: Ilya Bauer, photo: University of Texas at Austin