-(3)The Final Evolution of Lithium Sulfur Batteries

(3)The Final Evolution of Lithium Sulfur Batteries
author:enerbyte source:本站 click397 Release date: 2023-07-11 14:17:10
abstract:
Their research results show that the nanofiber pad is similar to the bird's nest in the micro level and is an excellent sulfur cathode platform, because it can attract and capture the Polysulfide that occurs when the battery is used. Keeping Polysulfide in the cathode structure can prevent...

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Their research results show that the nanofiber pad is similar to the bird's nest in the micro level and is an excellent sulfur cathode platform, because it can attract and capture the Polysulfide that occurs when the battery is used. Keeping Polysulfide in the cathode structure can prevent shuttle, which is a performance degradation phenomenon when they are dissolved in the electrolyte solution separated from the cathode and anode in the battery.

According to Kalra, this cathode design not only helps Li-S batteries maintain their energy density, but also achieves this goal without adding additional materials that would increase weight and production costs.

In order to achieve these dual goals, the team conducted in-depth research on this. It includes reaction mechanism and formation of Polysulfide to better understand how electrode host materials help them.

This research shows that there is a strong Lewis acid base interaction between Titanium(II) oxide and sulfur in the cathode, which can prevent Polysulfide from entering the electrolyte, which is an important reason for the decline of battery performance, said Dr. Arvinder Singh, one of the authors of the paper and a postdoctoral researcher of Kalras Laboratory.

This means that their cathode design can help Li-S batteries maintain their energy density - and proceed without additional material weight and production costs. Kalra. Kalras's previous research on nanofiber electrodes has shown that they are overcurrent battery components with multiple advantages. They have a larger surface area than the current electrode, which means they can adapt to expansion during charging, which can improve the storage capacity of the battery. By filling the electrolyte gel, they can eliminate the flammable components in the equipment and minimize their sensitivity to leakage, fire and explosion.

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