LR03 battery

Researchers develop ceramic electrodes: safer and more efficient LR03 battery

According to the latest news, researchers from Carlos III University (UC3M) and the Scientific Research Council in Spain have obtained a patented method for preparing new ceramic electrodes for lithium-ion batteries, which are more efficient than traditional batteries, cheaper, more durable and safer.

Currently, lithium-ion batteries are the main electrochemical storage system in electronic devices and transportation.

Professor Alejandro Várez of the UC3M Materials Synthesis and Processing Research Group explained: "Our patented new ceramic electrodes are safer and can work in a wider temperature range."

This is a method for making ceramic sheets through thermoplastic extrusion dies. Várez said: "This technology can make flat or tubular electrodes, which can be used in any type of lithium-ion battery." In addition, due to the relatively low production cost and easy adaptation to current production processes, the next step of industrial application will soon be realized.

These ceramic electrodes are composed only of active materials, which reduces the risk of degradation and fire at high temperatures (above 100°C).

"This is particularly important for electric vehicles, because in the event of an accident and fire, conventional batteries can catch fire and are difficult to extinguish. These new solid electrodes do not catch fire, so they contribute to greater safety," said JeanYves Sanchez, a UC3MCONEX researcher from the Université Grenoble Alpes in France and another inventor of the patent.

During peak electricity demand, commercial lithium-ion batteries often overheat and, in some cases, even explode. The reason for this is that the electrolytes usually used contain organic liquid solvents that can ignite, such as additives used to make the electrodes.

"With our technology, however, no solvents are used during the manufacturing process," said Sanchez. "In addition, if you compare them to conventional electrodes, the electrodes we obtain through this manufacturing process are very strong and cannot be cut, which contributes to the robustness of the battery."

Another advantage of batteries integrating these new electrodes is their efficiency, according to tests carried out by the researchers. Test results showed that the capacity of batteries equipped with such electrodes was almost several times that of batteries with commercial electrodes of the same density. And because this technology allows the manufacture of high-density electrodes (between 450 and 1000 microns), the storage capacity is also more than ten times that of current technology.

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