Huawei has solid-state batteries in its laboratories that are safer and more durable than lithium batteries. Its inventor: a Spanish scientist

The increase in renewable capacity has led to the need for greater energy storage, as well as the manufacturing of more and more electric cars. At the epicenter of this entire sector we find lithium, a scarce material that presents problems. However, the Huawei company has patented a new way to use and improve lithium-ion batteries.

A new patent. Huawei has registered a new patent related to solid-state battery technology. Under the name “doped sulfide materials and preparation methods, lithium ion batteries.” This new project seeks greater energy efficiency, implementing greater security and a longer useful life. The inventor of the patent is Spanish materials scientist Pedro López-Aranguren.

Sulfur batteries? The research is on the use of doped sulfur materials in solid-state batteries. The doped sulfur has allowed the ionic conductivity to be higher and improves the stability of lithium-ion batteries. In this way, you can solve common problems associated with liquid or gel electrolytes.

Conventional lithium ion batteries. The difference between the patent and conventional lithium-ion batteries, the latter when using liquid or gel electrolytes can cause leaks, there is less thermal stability and, therefore, a greater safety risk. For all these reasons, Huawei’s new patent has used a doped sulfur solid electrolyte that improves safety by preventing leaks and explosion, increasing energy density and durability. In addition to better stability in long charge and discharge cycles.

Solid state batteries. Within this type of batteries are: polymer, oxide and sulfur. The last one is the one we have talked about in this article, while the polymer one uses flexible and light materials, but they have a lower ionic conductivity. For their part, oxide ones are stable although they require more expensive manufacturing processes.

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