A5111525343- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced battery technologies research
- Advanced Battery Technologies Research
- Electrocatalysts for Energy Conversion
- Adaptive Control of Nonlinear Systems
- Laser-Matter Interactions and Applications
- Distributed Control Multi-Agent Systems
- Fuel Cells and Related Materials
- Stability and Control of Uncertain Systems
- Electrochemical Analysis and Applications
- Advanced Fiber Laser Technologies
- Adaptive Dynamic Programming Control
- Thermal Expansion and Ionic Conductivity
- Photonic and Optical Devices
- Conducting polymers and applications
- Spectroscopy and Quantum Chemical Studies
- Mass Spectrometry Techniques and Applications
- Molecular Junctions and Nanostructures
- Neural Networks Stability and Synchronization
- Superconducting and THz Device Technology
- Terahertz technology and applications
- Sulfur-Based Synthesis Techniques
- Advanced Polymer Synthesis and Characterization
- Laser-Plasma Interactions and Diagnostics
Beijing Institute of Technology
2018-2025
Tsinghua University
2018-2025
Bohai University
2017-2025
TU Dresden
2023-2025
Huaneng Clean Energy Research Institute
2024
Guangzhou Regenerative Medicine and Health Guangdong Laboratory
2024
First Affiliated Hospital of Henan University
2024
National University of Defense Technology
2024
Sinochem Group (China)
2024
East China University of Science and Technology
2016-2024
Abstract Rechargeable lithium–sulfur batteries have attracted tremendous scientific attention owing to their superior energy density. However, the sulfur electrochemistry involves multielectron redox reactions and complicated phase transformations, while final morphology of solid‐phase Li 2 S precipitates largely dominate battery's performance. Herein, a triple‐phase interface among electrolyte/CoSe /G is proposed afford strong chemisorption, high electrical conductivity, superb...
Lithium-sulfur (Li-S) batteries hold great promise to serve as next-generation energy storage devices. However, the practical performances of Li-S are severely limited by sulfur cathode regarding its low conductivity, huge volume change, and polysulfide shuttle effect. The first two issues have been well addressed introducing mesoporous carbon hosts cathode. Unfortunately, nonpolar nature materials renders poor affinity polar polysulfides, leaving shuttling issue unaddressed. In this...
Abstract Lithium–sulfur (Li–S) batteries deliver a high theoretical energy density of 2600 Wh kg −1 , and hold great promise to serve as next‐generation high‐energy‐density battery system. Great progress has been achieved in cathode design deal with the intrinsic problems sulfur cathodes, including low conductivity, dissolution polysulfide intermediate, volume fluctuation. However, aiming at practical applications Li–S batteries, weight percentage materials overall areal loading need be...
Surface reactions constitute the foundation of various energy conversion/storage technologies, such as lithium-sulfur (Li-S) batteries. To expedite surface for high-rate battery applications demands in-depth understanding reaction kinetics and rational catalyst design. Now an in situ extrinsic-metal etching strategy is used to activate inert monometal nitride hexagonal Ni3 N through iron-incorporated cubic FeN. In etched FeN regulates polysulfide-involving at high rates. Electron microscopy...
Abstract Lithium–sulfur (Li–S) batteries are considered as promising next‐generation energy storage devices due to their ultrahigh theoretical density, where soluble lithium polysulfides crucial in the Li–S electrochemistry intrinsic redox mediators. However, poor mediation capability of polysulfide mediators leads sluggish kinetics, further rendering limited rate performances, low discharge capacity, and rapid capacity decay. Here, an organodiselenide, diphenyl diselenide (DPDSe), is...
Lithium-sulfur (Li-S) batteries constitute promising next-generation energy storage devices due to the ultrahigh theoretical density of 2600 Wh kg-1. However, multiphase sulfur redox reactions with sophisticated homogeneous and heterogeneous electrochemical processes are sluggish in kinetics, thus requiring targeted high-efficient electrocatalysts. Herein, a semi-immobilized molecular electrocatalyst is designed tailor characters working Li-S batteries. Specifically, porphyrin active sites...
In situ evolution of electrocatalysts is paramount importance in defining catalytic reactions. Catalysts for aprotic electrochemistry such as lithium-sulfur (Li-S) batteries are the cornerstone to enhance intrinsically sluggish reaction kinetics but true active phases often controversial. Herein, we reveal electrochemical phase metal-based pre-catalysts (Co4 N) working Li-S that renders highly (CoSx ). Electrochemical cycling induces transformation from single-crystalline Co4 N...
Lithium–sulfur (Li–S) batteries are considered as a highly promising energy storage system due to their ultrahigh theoretical density. However, the sluggish kinetics of complex multi-electron sulfur redox reactions seriously hinders actual battery performance especially under practical working conditions. Homogeneous mediation, through elaborately designing additive molecules, is an effective approach promote kinetics. Herein promoter mixed organodiselenides (mixed-Se) proposed...
Lithium-sulfur (Li-S) batteries afford great promise on achieving practical high energy density beyond lithium-ion batteries. Lean-electrolyte conditions constitute the prerequisite for high-energy-density Li-S but inevitably deteriorates battery performances, especially sulfur cathode kinetics. Herein, polarizations of are systematically decoupled to identify key kinetic limiting factor in lean-electrolyte Concretely, an electrochemical impedance spectroscopy combined galvanostatic...
Lithium-sulfur (Li-S) batteries are regarded as promising high-energy-density energy storage devices. However, the cycling stability of Li-S is restricted by parasitic reactions between Li metal anodes and soluble lithium polysulfides (LiPSs). Encapsulating LiPS electrolyte (EPSE) can efficiently suppress but inevitably sacrifices cathode sulfur redox kinetics. To address above dilemma, a comediation strategy for EPSE proposed to realize long-cycling batteries. Concretely, dimethyl...
ConspectusLithium–sulfur (Li–S) batteries have attracted worldwide attention as promising next-generation rechargeable due to their high theoretical energy density of 2600 Wh kg–1. The actual Li–S at the pouch cell level has significantly exceeded that state-of-the-art Li-ion batteries. However, overall performances under practical working conditions are limited by sluggish conversion kinetics sulfur cathodes. To overcome above challenge, various kinetic promotion strategies been proposed...
Abstract Regulating the solid product growth is critical for achieving high capacities in rechargeable batteries based upon multiphase and multielectron dissolution–precipitation chemistries (e.g., lithium–sulfur chemistry). The intrinsic redox mediators, polysulfides, are insufficient effective regulation due to dynamically changed species concentration. Herein cobaltocene (CoCp 2 ) introduced as a persistent extrinsic mediator dictate an alternative growing pathway toward three‐dimensional...
An electrochemical reaction assisted by an anionic regulation strategy was proposed for precise construction of hetero-anionic electrocatalysts oxygen evolution and polysulfide redox reactions.
Abstract In situ evolution of electrocatalysts is paramount importance in defining catalytic reactions. Catalysts for aprotic electrochemistry such as lithium–sulfur (Li‐S) batteries are the cornerstone to enhance intrinsically sluggish reaction kinetics but true active phases often controversial. Herein, we reveal electrochemical phase metal‐based pre‐catalysts (Co 4 N) working Li‐S that renders highly (CoS x ). Electrochemical cycling induces transformation from single‐crystalline Co N...
Lithium-sulfur (Li-S) batteries are deemed as future energy storage devices due to ultrahigh theoretical density. Cathodic polysulfide electrocatalysts have been widely investigated promote sluggish sulfur redox kinetics. Probing the surface structure of is vital understanding mechanism electrocatalysis. In this work, we for first time identify gelation on disulfide electrocatalysts. Concretely, Lewis acid sites disulfides trigger ring-opening polymerization dioxolane solvent generate a gel...
Abstract The development of next‐generation high‐energy‐density batteries requires advanced electrode materials. Sulfurized polyacrylonitrile (SPAN) is considered a promising sulfur cathode with the merits high specific capacity and long cycling stability for high‐performance lithium–sulfur (Li–S) batteries. Nevertheless, practical performances SPAN cathodes are severely limited by unfavorable electron accessibility due to relatively low intrinsic conductivity large particle size. Herein,...