2025 button cell battery

Spanish research team will use laser technology to design 2025 button cell battery

As the trend of electric travel becomes increasingly evident, the demand for batteries will increase in the future. People need batteries that are more environmentally friendly, cheaper, have larger storage capacity and have longer life. According to foreign media reports, a Spanish research team uses laser technology to design the next generation of batteries.

In the EU-funded Laser4Surf project, scientists are trying to improve the stability of lithium-ion batteries. Physicist Dr. Miguel Angel Munoz-Marquez, leader of the Advanced Interface Analysis Group at CICenergiGUNE Energy Research Center in Spain, said: "We use lasers to change the current collector surface, which is one of the battery components. These improvements can improve the stability of the battery and thus extend the battery life. Battery Life."

All lithium-ion batteries have current collectors on both ends, which are coated with electrode material. During battery operation, these materials store lithium ions and release them when necessary. Technically speaking, the laser acts on the metal surface, allowing the electrodes to adhere better to the current collector. Prevent unintended reactions that could cause the electrode to separate from the current collector.

Miguel Angel Munoz said: "Through these improvements, the performance of the battery under high-power loads can also be improved. We hope to use lasers to improve the surface activity of the current collector so that it can handle more electrons during the charge and discharge process."

At present, lithium-ion batteries for electric vehicles have shown strong enough performance. Batteries produced by different companies can allow a car to travel 200 to 500 kilometers without charging. But the main issue now is price, because the battery accounts for about 40% or 50% of the cost of the car. Munoz said: "Costs can be reduced through technological improvements, as we have done with the Laser4Surf project. In addition to this, cost savings can be achieved by using cheaper materials. If a solution can be found to extend battery life, even if the price Even higher is an improvement and the previous investment will pay off if the battery life is extended.”

Another important issue studied in the project is battery sustainability. In the Laser4Surf project, the researchers skipped one chemical step in the manufacturing process: the carbon coating of the current collector. On ordinary lithium-ion batteries, carbon coatings can improve current collector performance, such as ensuring better electrical contact between the current collector and electrodes. "Changing the surface of the current collector with a laser eliminates the need for chemical coatings. At the same time, laser etching improves electrical and mechanical contact, so the cell performs better," Munoz explains.

After the first laboratory tests, Miguel Angel Munoz is hopeful about the development of this research. He said: "In the second half of the project, we are developing a prototype that is close to the size of a mobile phone battery. This can be said to be a trial before industrial production." The next step is to demonstrate the competitiveness of these findings to battery companies. "If all goes well, in less than ten years we will be able to reach industrial production scale."

Professor Stefanopsasserini from the Helmholtz Institute Ulm (HIU) said: "It is crucial to improve the contact between the active material and the current collector. This is an excellent way to improve the battery life and charging performance. He believes that laser technology is feasible because it is cheaper. However, research effectiveness cannot be truly assessed until benefit/cost balances are calculated.

Still, Munoz believes the research could lead to significant cost savings for businesses. Any breakthrough would have a bigger impact on the battery industry and help the lab raise more funds so it can invest more efforts in this area.

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