A5091052489- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- MXene and MAX Phase Materials
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Advanced Battery Technologies Research
- Polyoxometalates: Synthesis and Applications
Yeungnam University
2022-2024
Abstract Transition metal oxides (TMOs) have attracted considerable attention owing to their strong anchoring ability and natural abundance. However, single‐site adsorption toward sulfur (S) species significantly lowers the possibility of S reacting with Li + in electrolyte increases reaction barrier. This study investigates molecular modification by coupling TMO structure conductive polymer ligands, vanadyl ethylene glycolate (VEG) is successfully synthesized introducing organic ligands...
Abstract Investigations into lithium–sulfur batteries (LSBs) has focused primarily on the initial conversion of lithium polysulfides (LiPSs) to Li 2 S . However, subsequent solid–solid reaction from and decomposition process should be equally prioritized. Creating a virtuous cycle by balancing all three chemical processes is crucial for realizing practical LSBs. Herein, amorphous Ni 3 B in synergy with carbon nanotubes (aNi B@CNTs) proposed implement consecutive catalysis 8(solid) → LiPSs...
Managing the redox reactions of polysulfides is crucial for improving performance lithium-sulfur batteries (LSBs). Herein, we introduce a progressive theoretical framework: balanced d-band model, which based on classical center theory. Specifically, by optimizing position in middle between highest occupied molecular orbital (HOMO) and lowest unoccupied (LUMO) each sulfur species, fast oxidation reduction species can be achieved simultaneously. To validate this theory, synthesized catalyst...
Lithium-sulfur batteries (LSBs) have been considered promising candidates for next-generation energy storage devices owing to their high density, low price, and environment-friendly characteristics. However, commercialization has hindered by the "shuttle effect", which occurs during charge/discharge cycles leads poor cycling performance coulombic efficiency. Here, we synthesized flower-shaped hollow VOOH spheres on carbon nanotube (CNT) network, were used as multifunctional sulfur host...
This study outlines the effective production of a CoP/MXene nanomaterial, distinguished by its distinctive rod-like structures and MXene layers, demonstrating promising performance in supercapacitor applications.
Lithium–Sulfur Batteries In article number 2206750, Kisoo Yoo, Jong-Hoon Kim, Hengyue Xu, and co-workers report a hybrid organic-inorganic vanadyl ethylene glycolate as novel carbon-free cathode material for lithium-sulfur battery. The dual-site adsorption fast electron/ion transport enable high anchoring efficiency catalytic activity during the polysulfides conversion. Accordingly, excellent electrochemical performance could be achieved over wide-range of temperatures.