A5064754947- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Electrocatalysts for Energy Conversion
- Layered Double Hydroxides Synthesis and Applications
- Chemistry and Chemical Engineering
- Solar-Powered Water Purification Methods
- Hydrogen Storage and Materials
- Conducting polymers and applications
- Electrochemical Analysis and Applications
- Fuel Cells and Related Materials
- Extraction and Separation Processes
- Recycling and Waste Management Techniques
- Electrochemical sensors and biosensors
University of Hong Kong
2021-2025
Chinese University of Hong Kong
2021-2023
Rechargeable Mg batteries are a promising post-Li-ion battery technology, but their development has been critically hampered by the passivating nature of Mg, particularly in aqueous solutions. Due to quick dismissal its reversibility, use anodes electrolytes overlooked, and most researchers focus on nonaqueous systems instead. In this work, reversible, chemistry realized for first time, via conversion impermeable passivation film conductive metallic oxide complex, facilitated Cl– regulation...
Mg-ion batteries offer a safe, low-cost, and high-energy density alternative to current Li-ion batteries. However, nonaqueous struggle with poor ionic conductivity, while aqueous face narrow electrochemical window. Our group previously developed water-in-salt battery an operating voltage above 2 V yet still lower than its counterpart because of the dominance proton over insertion in cathode. We designed quasi-solid-state magnesium-ion (QSMB) that confines hydrogen bond network for true...
Abstract Organic–inorganic composite solid electrolytes (CSEs) have aroused intensive attention due to their balanced performance and environmental adaptability. However, high performance, e.g., the ionic conductivity, wide electrochemical window, excellent interfacial compatibility, is achieved by sacrificing mechanical strength, which increases possibility of short circuits thus poses serious safety hazards. Herein, a high‐performance rigid‐flexible PM polymer matrix synthesized simple...
Abstract The aqueous Al‐ion battery has achieved great progress in recent years. It now shows comparable performance to that of even non‐aqueous batteries. However, it also relatively low energy output and there is limited general understanding the mechanism behind this restriction its practical application. Thus, development a high‐performance cathode material demand. Herein, high‐capacity single‐walled carbon nanotube (SWCNT) developed as for water‐in‐salt electrolyte‐based battery, which...
Aqueous Al-ion battery (AAIB) is regarded as a promising candidate for large-scale energy storage systems due to its high capacity, safety, and low cost, with MnO2 proved be high-performance cathode. However, the potential commercial application of this type plagued by frequent structural collapse . Herein, an in situ, electrochemically reformed, urchin-like Alx cathode developed water-in-salt electrolyte-based AAIBs. Benefiting from unique α-MnO2 coated Mn2 AlO4 structure, Al ion capacity...
Hydrogel electrolyte is especially suitable for solid-state Al-air batteries targeted various portable applications, which may, however, lead to continuous Al corrosion during battery standby. To tackle this issue, an ethanol gel developed the first time in work, by using KOH as solute and polyethylene oxide gelling agent. The found effectively inhibit compared with water counterpart, leading stable storage. When assembled into battery, achieves a much improved discharge lifetime specific...
Low-cost, flexible and safe battery technology is the key to widespread usage of wearable electronics, among which aqueous Al ion with water-in-salt electrolyte a promising candidate. In this work, developed using cellulose paper as substrate. The stored inside paper, while electrodes are either printed or attached on surface, leading lightweight thin-film prototype. Currently, can tolerate charge discharge rate high 4 A g−1 without losing its storage capacity. voltage around 2.2 V, plateau...
Abstract In recent years, there have been significant advancements in Al‐ion battery development, resulting high voltage and capacity. Traditionally, only carbon‐based materials with layered structures strong bonding capabilities can deliver superior performance. However, most other exhibited low discharge voltages of 1.4 V, especially aqueous systems lacking anion intercalation. Thus, the development high‐voltage cathode has become crucial. This study introduces 2D MoS 2 as a...
Aqueous Al-Ion Batteries In article number 2101514, Xinhua Liu, Dennis Y. C. Leung, and co-workers propose a high-performance aqueous Al-ion battery with SWCNT cathode an aluminum foil anode. A water-in-salt electrolyte is used to provide multiple electrochemical species so that AlCl4− ions can be extracted Al3+ inserted from/into the during discharging, providing high-energy-density output. This low-cost technology expected utilized for large-scale renewable energy storage systems.