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Updated: Jan 14, 2026
09:50
Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
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Local Microenvironment-Induced Dynamic Self-Adaptation for High-Performance Ammonium-Ion Batteries.
Zhongzhuo Yang1, Hanwen Cheng1, Wei Yang1
1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
ACS Nano
|October 17, 2025
Summary
Researchers developed a self-adaptation strategy for aqueous ammonium-ion batteries (AIBs) using vanadium oxide. This enhances electrode stability and performance, paving the way for practical energy storage solutions.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Rechargeable aqueous ammonium-ion batteries (AIBs) offer safe and sustainable energy storage.
- Designing AIB electrodes with high-rate capability and long cycle life remains a significant challenge.
Purpose of the Study:
- To address limitations in AIB electrode design by proposing a dynamic self-adaptation strategy.
- To improve the cycling stability and rate performance of vanadium oxide-based electrodes.
Main Methods:
- Constructed an amorphous layer on the vanadium oxide surface to create a tailored local microenvironment.
- Investigated the reversible structural evolution during ammonium ion de/intercalation.
- Engineered crystalline-amorphous interfaces to form self-adaptive domains.
Main Results:
- The engineered vanadium oxide (SR-VO) exhibited reversible structural evolution and dynamic self-adaptation.
- Achieved exceptional cycling stability with an ultralow decay rate of 0.004% per cycle at 10 A g⁻¹ over 10,000 cycles.
- Demonstrated practical viability by powering wearable devices with a full cell integrating SR-VO and a Prussian blue cathode.
Conclusions:
- Heterostructure engineering is critical for overcoming material limitations in AIBs.
- The dynamic self-adaptation strategy significantly enhances AIB electrode performance.
- This approach advances the practical application of AIBs in energy storage.
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