A5101842289- MXene and MAX Phase Materials
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Advanced Sensor and Energy Harvesting Materials
- Advanced Battery Materials and Technologies
- Extraction and Separation Processes
- 2D Materials and Applications
- Advanced battery technologies research
- Advanced Memory and Neural Computing
- Conducting polymers and applications
- Metal Extraction and Bioleaching
- Graphene research and applications
- Minerals Flotation and Separation Techniques
- Ferroelectric and Negative Capacitance Devices
- Advanced Battery Technologies Research
- Parathyroid Disorders and Treatments
- Titanium Alloys Microstructure and Properties
- Dielectric properties of ceramics
- Dielectric materials and actuators
- Periodontal Regeneration and Treatments
- Ionic liquids properties and applications
- Advanced Sensor and Control Systems
- Advanced Algorithms and Applications
- Aluminum Alloys Composites Properties
- Plasma Applications and Diagnostics
Southwest Jiaotong University
2019-2024
Chinese Academy of Medical Sciences & Peking Union Medical College
2024
State Intellectual Property Office
2023
State Key Laboratory of Traction Power
2022
Nanjing University of Aeronautics and Astronautics
2022
China Medical University
2019
Lanzhou University
2005-2008
Peking University
2007
Rich chemistry and surface functionalization provide MXenes enhanced electrochemical activity yet severely exacerbate their self-discharge behavior in supercapacitors. However, this its related mechanism are still remaining issues. Herein, we propose a chemically interface-tailored regulation strategy to successfully unravel efficiently alleviate the of Ti3C2Tx MXene-based As result, with fewer F elements (∼0.65 atom %) show positive rate decline ∼20% comparison higher (∼8.09 %). Such can...
Abstract MXene‐based supercapacitors are promising electrochemical energy‐storage devices due to their ultrahigh volumetric capacitance, high‐power characteristics, and excellent cyclability. However, they suffer from severe self‐discharging behavior while the underlying mechanism is still unclear. Here, self‐discharge of surface electronic structure MXenes disclosed, a novel method mitigate it proposed. A superficial engineering strategy based on bio‐thermal treatment developed effectively...
MXene-based microsupercapacitors (MSCs) have promoted the development of on-chip energy storage for miniaturized and portable electronics due to small size, high power density integration density. However, restricted operating voltage invariably create obstacles practical application MSCs. Here, we report a symmetric MSC, achieving an ultrahigh 75 mWh cm-3 with 1.2 V, which are almost highest values among all reported MXene The adjustment strategy acetone on viscosity surface tension ink,...
A dual faradaic lithium-ion capacitor (LIC) promises high energy density but commonly suffers from low-power characteristics. The reason causing this deficiency is attributed to bulk-phase mass-transfer-induced sluggish dynamics, especially in the anode. Two-dimensional MXenes are promising solve issue because of their open structure and low ion-migration barrier. However, self-stacking phenomenon greatly diluted these advantages. Here we develop a biothermochemistry method produce...
Abstract The wide‐spread proliferation of aqueous MXene‐based supercapacitor has been largely shadowed by the limited cell potential window (typically in range 0–0.6 V). To address this baffling issue, designing asymmetric (ASC) is proposed as a rational strategy to enlarge (thus energy density) individual electrolytes. date, however, it still remains great challenge develop easy fabricating, 3D nanostructured, and pseudocapacitive cathode materials that can perfectly match with MXene anode...
Ionic liquid (IL) electrolytes with a high potential window are promising candidates to high-energy-density supercapacitors; however, they commonly suffer from serious kinetic barriers that lead poor power density. In this work, we propose an additive engineering method promote rapid dynamics of IL-based supercapacitors. Additive is based on adding cetyltrimethylammonium bromide-grafted Ti3C2 MXene (Ti3C2-CTAB) into 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIMBF4), typical IL...
Chemical etching method shows potential for large-scale and low-cost processed MXenes but incorporates surface terminations such as F&OH that probably deteriorate the lithium storage characteristics. Herein, we propose tailoring appropriate functionalization intrinsic electrical properties can dramatically enhance capability of Ti3C2Tx (T stands F, OH, O) MXene materials. By carefully controlling annealing process, films possess fewer elements so with higher conductivity, they are still...
Naturally structural and chemical interface instability between solid-state electrolyte (SSE) Li anode is still a bottleneck for the suppression of dendrites to date. Herein, we design 3D in situ-fluorinated perovskite-type hybridized with poly (ethylene oxide) fibers ([email protected]) synergistically enhanced physicochemical-interface stability. The rapidly Li-ions-transporting high shear modulus skeleton-structured SSE can physically suppress dendrite growth, while LiF-rich (SEI) layer...
Polymer solid-state electrolytes (PSSEs) are promising for solving the safety problem of Lithium (Li) metal batteries (LMBs). However, PSSEs with low modulus in nature prone to be penetrated by lithium dendrites, resulting short circuit LMBs. Here, we design and prepare piezoelectric BaTiO3 doped polyacrylonitrile ([email protected]) quasi-solid-state (PQSSEs) electrostatic spinning method suppress dendritic growth. The polymer squeezed nucleation growth processes Li which can generate a...
Abstract Micro‐supercapacitors, emerging as promising micro‐energy storage devices, have attracted significant attention due to their unique features. This comprehensive review focuses on two key aspects: the scalable fabrication of MSCs and diverse applications. The begins by elucidating energy mechanisms guiding principles for designing high‐performance devices. It subsequently explores recent advancements in techniques electrode materials micro‐nano technologies micro‐devices. discussion...
Lithium‐ion capacitors (LICs) are becoming important electrochemical energy storage systems due to their great potential bridge the gap between supercapacitors and lithium‐ion batteries. However, capacity lopsidedness low output voltage greatly hinder realization of high‐energy‐density LICs. Herein, a strategy balancing towards fastest dynamics is proposed enable high‐voltage Through prelithiation Nb 2 C be 1.1 V with 165 mAh g −1 , // LiFePO 4 LICs show broadened window from 3.0 4.2 an...
Exploring advanced electrode materials with rapid lithium-ion charging/discharging kinetic properties is significant for the development of modern electric transportation. Herein we report a powerful synergistic engineering carbon encapsulation and oxygen deficiency to construct Nb2O5 through two-step method pregelation annealing treatment. The yielded sufficient vacancies are supported by 2D highly conductive Nb2CTz (T = O, OH, F) MXene further encapsulated 3D layers (2D/3D Nb2O5–x). Such...