Russian researchers examine new materials for Li-ion batteries of miniature sensors

Specialists of Peter the Great St.Petersburg Polytechnic University (SPbPU) are growing new materials for solid state thin-film Li-ion batteries for micro and nanodevices. The first phase of the project was successfully finished at the laboratory “Functional Materials” of the Institute of Metallurgy, Mechanical Engineering, and Transport SPbPU. The project is supported by the Russian Science Foundation (RScF).

Some portion of the results got at the first phase of the project was published in the article “Atomic Layer Deposition of NiO to Produce Active Material for Thin-Film Lithium-Ion Batteries” in the journal Coatings, MDPI.

The authors recommended using a new pair of reagents to acquire the electrode materials dependent on nickel oxide. Analysts studied the fundamental procedures occurring amid the charge and discharge procedures of thin-film material.

It ought to be noticed that the lithium-ion batteries are utilized in phones and laptops as well as in the entire class of micro and nanodevices, for example, wireless sensors, pacemakers and so on. These gadgets, for the most part, work using thin-film current sources. The littler the gadget, the thinner the power source is required. In this manner, the materials ought to have improved electrochemical characteristics to work longer without extra charge.

“In the frames of the RScF project, we obtained an electrode material based on nickel oxide by atomic layer deposition (ALD) using new processes. We demonstrated its possible application in Li-ion batteries by studying its electrochemical features. In the future, we are planning to improve the materials of electrodes for thin-film batteries. It will bring us closer to a prototype of a solid-state thin-film Li-ion battery produced by ALD. I suppose that the positive results undoubtedly will be interesting for commercial application”, says Maxim Maximov, leading researcher of the laboratory “Functional Materials” of the Institute of Metallurgy, Mechanical Engineering and Transport SPbPU.

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