A5078467439- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Electrocatalysts for Energy Conversion
- Advanced Battery Technologies Research
- Fuel Cells and Related Materials
- Extraction and Separation Processes
- Supercapacitor Materials and Fabrication
- Transition Metal Oxide Nanomaterials
- Magnetic and transport properties of perovskites and related materials
- MXene and MAX Phase Materials
- Advanced battery technologies research
- Magnetic properties of thin films
- Magnetic Properties of Alloys
- Advanced Thermoelectric Materials and Devices
- Electrochemical Analysis and Applications
- Advancements in Solid Oxide Fuel Cells
- Gas Sensing Nanomaterials and Sensors
Swiss Federal Laboratories for Materials Science and Technology
2023
Board of the Swiss Federal Institutes of Technology
2023
ETH Zurich
2022-2023
National University of Singapore
2020-2021
Single-crystal LiNix Coy Mnz O2 (SC-NCM, x+y+z=1) cathodes are renowned for their high structural stability and reduced accumulation of adverse side products during long-term cycling. While advances have been made using SC-NCM cathode materials, careful studies degradation mechanisms scarce. Herein, we employed quasi single-crystalline LiNi0.65 Co0.15 Mn0.20 (SC-NCM65) to test the relationship between cycling performance material different charge cutoff potentials. The Li/SC-NCM65 cells...
Abstract A large amount of low‐grade heat (<100 °C) is produced in electrical devices and mostly wasted. This type without effective dissipation also causes compromised device performance, reliability, lifespan. To tackle these issues, a redox targeting (RT)‐based flow cell with judiciously designed thermoelectrically active materials demonstrated for the first time efficient heat‐to‐electricity conversion through thermally regenerative electrochemical cycle (TREC). Compared conventional...
Abstract The ever‐increasing popularity of smart electronics demands advanced Li‐ion batteries capable charging faster and storing more energy, which in turn stimulates the innovation electrode additives. Developing single‐phase conductive networks featuring excellent mechanical strength/integrity coupled with efficient electron transport durability at high‐voltage operation should maximize rate capability energy density, however, this has proven to be quite challenging. Herein, it is shown...
We use first-principles calculations to investigate how deviations from perfect chemical order affect the magnetocrystalline anisotropy energy (MAE) in $L{1}_{0}$ FeNi. first analyze local environment of Fe atoms various partially ordered configurations, using orbital magnetic moment (OMA) as proxy for a contribution MAE. are able identify specific nearest neighbor configuration and this ``favorable environment'' successfully design structures with MAE higher than perfectly system. However,...
Abstract Single‐crystal LiNi x Co y Mn z O 2 (SC‐NCM, + =1) cathodes are renowned for their high structural stability and reduced accumulation of adverse side products during long‐term cycling. While advances have been made using SC‐NCM cathode materials, careful studies degradation mechanisms scarce. Herein, we employed quasi single‐crystalline 0.65 0.15 0.20 (SC‐NCM65) to test the relationship between cycling performance material different charge cutoff potentials. The Li/SC‐NCM65 cells...
Single-crystal Ni-rich layered oxide materials LiNi1−x−yCoxMnyO2 (NCM, 1 – x − y ≥ 0.6) are emerging as promising cathode that do not show intergranular cracks a result of the lack grain boundaries and anisotropy bulk structure, enabling extended cyclability in lithium-ion batteries (LIBs) operating at high voltage. However, SC-NCM still suffer from capacity fading upon cycling. This degradation can be attributed to reconstruction surface. A phase transformation structures disordered...
In article number 2006234, Qing Wang and co-workers report a redox-targeting-based flow cell via the redox-targeting reactions between redox mediator [Fe(CN)6]4−/3− solid materials, demonstrating enhanced thermoelectric energy conversion for harnessing of waste heat when operating over thermally regenerative electrochemical cycle, as well high density decoupled large-scale electricity storage.