Successful development of a more advanced semi-permanent lithium-sulfur battery than all-solid-state batteries

A lithium-sulfur battery with a much longer lifespan and superior performance compared to all-solid-state batteries has been developed.

According to the technology specialized media 'Tech Xplore', an international group of experts from various Chinese and German institutions has developed a 'glass-like mixture' that serves as a solid electrolyte by utilizing abundant sulfur, boron, lithium, phosphorus, and iodine.

This material, a solid porous structure, significantly increased the rate of electron transfer through redox reactions and maintained over 80% of its capacity even after 25,000 charge-discharge cycles. The research team's findings were recently published in 'Nature'.

 

The research team chose sulfur, a high-quality, abundant, and low-cost material, to fix lithium and make the battery smaller and lighter. However, the reaction between sulfur and lithium causes ion loss and tends to expand, resulting in a very short battery lifespan.

The research team found a way to solve this problem and developed a 'lithium-sulfur battery' that lasts longer and is more cost-effective than other batteries through thousands of charge cycles.

The research team created a composite electrode with a porous atomic structure made of sulfur, boron, lithium, phosphorus, and iodine. The porous atomic structure allows for free and rapid ion diffusion without the need for intermediate transfer.

As a result, a battery has been developed that can be quickly charged without any issues even when exposed to high temperatures. The research team announced that this battery can retain 80% of its charging capacity even after 25,000 charge and recharge cycles.

It has significantly better performance and lifespan compared to current lithium-ion batteries, which degrade noticeably after just 1,000 charge cycles.

Researchers explained that more studies are needed to improve energy density and that efforts should continue to find other materials for mixing to ensure lightweight batteries.

 

------------------------------------------------------------------

 

China is continuously developing by attracting experts from various German institutions with its enormous financial resources...

 

Now it seems that China is aiming to become the world's number one in batteries.

 

It makes me sad to see LG and Hyundai's positions continue to diminish.

 

Same goes for Samsung...