Zhu, Yijia;
Liu, Xiaopeng;
Naresh, Nibagani;
Luo, Jingli;
Hu, Xueqing;
Liu, Sijin;
Nikiforidis, Georgios;
... Deka Boruah, Buddha; + view all
(2025)
Enhancing Stability and Capacity in Planar Zn-Ion Micro-Batteries via 3D Porous Ni Anode Integration.
Small Methods
, 9
(11)
, Article e01194. 10.1002/smtd.202501194.
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Deka Boruah_Small Methods - 2025 - Zhu - Enhancing Stability and Capacity in Planar Zn‐Ion Micro‐Batteries via 3D Porous Ni Anode.pdf Download (8MB) | Preview |
Abstract
The development of planar on-chip micro-batteries with high-capacity electrodes and environmentally friendly and stable architectures is critical for powering the next generation of miniaturized system-on-chip smart devices. However, realizing highly stable micro-batteries remains a major challenge due to complex fabrication processes, electrode degradation during cycling, and the uncontrolled growth of dendrites in metal-based anodes within the confined spaces between electrodes. To address these issues, this study presents an approach that incorporates a 3D porous nickel (Ni) scaffold at the metal anode, offering improved micro-anode stability compared to conventional planar zinc and 3D porous zinc (Zn) scaffolds. Integrated into a planar configuration with a polyaniline (PANI) cathode and a zinc-loaded 3D porous Ni scaffold anode, this design significantly enhances long-term cycling stability, lowers charge transfer resistance, and increases charge storage capacity from 10 to 14 µAh cm−2 at 0.1 mA cm−2 compared to the same materials deposited on traditional planar gold microelectrodes. As a result, the Zn-ion micro-batteries achieve notable peak areal energy and power densities of 17.22 µWh cm−2 and 6.98 mW cm−2, respectively. This work provides an effective strategy for improving the electrochemical performance and durability of planar micro-batteries, marking a significant advancement toward the future of portable microelectronic devices.
| Type: | Article |
|---|---|
| Title: | Enhancing Stability and Capacity in Planar Zn-Ion Micro-Batteries via 3D Porous Ni Anode Integration |
| Location: | Germany |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/smtd.202501194 |
| Publisher version: | https://doi.org/10.1002/smtd.202501194 |
| Language: | English |
| Additional information: | Copyright © 2025 The Author(s). Small Methods published by Wiley-VCH GmbH This is an open access article under the terms of the Creative Commons Attribution License, https://creativecommons.org/licenses/by/4.0/, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | 3D porous nickel scaffold; on-chip energy storage; planar micro-batteries; stable anodes; zinc-ion batteries |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10219319 |
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