https://doi.org/10.1140/epjs/s11734-025-02030-y
Regular Article
A multi-functional composite film for anode and current collector by one-step micro-arc oxidation
1
College of Physics and Materials Science, Tianjin Normal University, 300387, Tianjin, China
2
Laboratory of Beam Technology and Energy Materials, Faculty of Arts and Sciences, Beijing Normal University, 519087, Zhuhai, China
3
Key Laboratory of Beam Technology of Ministry of Education, School of Physics and Astronomy, Beijing Normal University, 100875, Beijing, China
a
wsm116@tjnu.edu.cn
b
jiewu@bnu.edu.cn
Received:
10
April
2025
Accepted:
18
September
2025
Published online:
29
October
2025
A SiO2/TiO2 composite film, which served as the bind-free anode for lithium-ion batteries (LIBs) as well as the negative current collector for lithium metal batteries (LMBs), was rapidly fabricated on Ti foil via the one-step micro-arc oxidation process. The unique 3D skeletal porous structure was presented with many cavities and channels resulting from the lightning breakdown effect of liquidus plasma discharge. Lithiophilic SiO2 nano-particles and TiO2 matrix allow for the controllable nucleation and deposition of Li inside the porous layer, which have higher adsorption energy with Li compared to traditional Cu current collector by density functional theory (DFT) simulation. As a result, excellent cycling performance and high rate capability were achieved in both LIBs and LMBs, highlighting the feasibility of the novel composite current collector film. This work provides an efficient and low-cost route for the preparation of multi-functional composite film, enriching the application of micro-arc oxidation technology in lithium storage field.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
