A5101849241- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Luminescence and Fluorescent Materials
- Ammonia Synthesis and Nitrogen Reduction
- Luminescence Properties of Advanced Materials
- Advanced battery technologies research
- Thermal Radiation and Cooling Technologies
- Perovskite Materials and Applications
- Layered Double Hydroxides Synthesis and Applications
- Ferroelectric and Piezoelectric Materials
- Electromagnetic wave absorption materials
- Skin Protection and Aging
- Organic Electronics and Photovoltaics
- Quantum Dots Synthesis And Properties
- Organic Light-Emitting Diodes Research
- Crystallography and molecular interactions
- Nanomaterials for catalytic reactions
- Extracellular vesicles in disease
- Sports Dynamics and Biomechanics
- Ferroelectric and Negative Capacitance Devices
Dalian University
2024
Dalian University of Technology
2024
Chinese Academy of Sciences
2020-2024
Tsinghua University
2021-2024
Shanghai Institute of Optics and Fine Mechanics
2023-2024
University of Chinese Academy of Sciences
2015-2024
Nanjing Forestry University
2022-2024
Argonne National Laboratory
2024
Ningbo Institute of Industrial Technology
2020-2022
Institute of Microelectronics
2021
Organic–inorganic hybrid halide perovskite nanowires (PNWs) show great potential applications in electronic and optoelectronic devices such as solar cells, field-effect transistors photodetectors. It is very meaningful to fabricate ordered, large-area PNW arrays greatly accelerate their commercialization devices. Herein, highly oriented ultra-long methylammonium lead iodide (CH3NH3PbI3) array thin films were fabricated by large-scale roll-to-roll (R2R) micro-gravure printing doctor blading...
Most potassium-ion battery (PIB) cathode materials have deficient structural stability because of the huge radius potassium ion, leading to inferior cycling performance. We report controllable synthesis a novel low-strain phosphate material K3 (VO)(HV2 O3 )(PO4 )2 (HPO4 ) (denoted KVP) nanorulers as an efficient for PIBs. The as-synthesized KVP nanoruler exhibits initial reversible capacity 80.6 mAh g-1 under 20 mA , with large average working potential 4.11 V. It also manifests excellent...
Abstract Artificial intelligence/machine learning (AI/ML) applied to battery research is considered be a powerful tool for accelerating the cycle. However, development of appropriate materials descriptors often first hurdle toward implementing meaningful and accurate AI/ML. Currently, rational solvent selection remains significant challenge in electrolyte still based on experiments. The dielectric constant (ε) donor number (DN) design are insufficient. Finding theoretically computable...
With high theoretical capacity and operating voltage, KVPO4F is a potential energy density cathode material for potassium-ion batteries. However, its performance usually limited by F loss, poor electronic conductivity, unsteady electrode/electrolyte interface. Herein, simple one-step sintering process developed, where vanadium-oxalate-phosphite/phosphate frameworks fluorinated polymer are used to synthesize carbon-coated nanoplates. It found that the V-F-C bond generated...
Layered transition-metal (TM) oxides have drawn ever-growing interest as positive electrode materials in potassium-ion batteries (PIBs). Nevertheless, the practical implementation of these is seriously hampered by their inferior cyclic property and rate performance. Reported here a self-templating strategy to prepare homogeneous P2-K0.6CoO2 (KCO) microcubes. Benefiting from unusual microcube architecture, interface between electrolyte active material considerably diminished. As result, KCO...
The separator, an ionic permeable and electronic insulating membrane between cathode anode, plays a crucial role in the electrochemical safety performance of batteries. However, commercial polyolefin separators not only suffer from inevitable thermal shrinkage at elevated temperature, but also fail to inhibit hidden chemical crosstalk reactive gases such as O2 , leading often reported runaway (TR) hence preventing large-scale implementation high-energy-density lithium-ion Herein, nanoporous...
Localized high-concentration electrolytes (LHCEs) provide a new way to expand multifunctional because of their unique physicochemical properties. LHCEs are generated when (HCEs) diluted by antisolvents, while the effect antisolvents on lithium-ion solvation structure is negligible. Herein, using one-dimensional infrared spectroscopy and theoretical calculations, we explore significance in model electrolyte lithium bis(fluorosulfonyl)imide/dimethyl carbonate (LiFSI/DMC) with hydrofluoroether....
Abstract Lithium‐ion batteries are taking center stage in the environmental revolution through ever‐growing adoption of electric vehicles. However, safety issues derived from battery thermal runaway remain a prominent challenge. In this work, bi‐continuous separator (Bi‐Sep) via micro‐gravure and phase inversion techniques is developed. The proposed nonshrinkage exhibits nanoporous morphology super‐stretchable property, thus effectively blocking both internal short circuits chemical...
Abstract Metal hexacyanoferrates (HCFs) are regarded as promising cathode materials for potassium‐ion batteries (PIBs) on account of their low cost and high energy density. However, the difficult‐to‐remove [Fe(CN) 6 ] vacancies crystal water lead to structural instability capacity deterioration well stereotype poor thermostability conventional HCFs. Herein, we report (100) face‐oriented potassium magnesium hexacyanoferrate (KMgHCF) nanoplates with crystallinity, enabling up 550 °C,...
A scalable and highly conductive PEDOT:PSS:CNTs transparent electrode (TE) is demonstrated for high performance optoelectronics. The aligned uniform dispersion of electron conduction favored CNTs in the PEDOT:PSS matrix can achieve rearrangement PEDOT chains with more expended conformation via π–π interaction between PEDOT. As a result, presents conductivity 3264.27 S cm–1 transmittance over 85%, ITO-free PSCs based on achieves PCE 7.47% stability. Furthermore, large-scale flexible was...
Lithium (Li) deposition behavior plays an important role in dendrite formation and the subsequent performance of lithium metal batteries. This work reveals impact lithiophilic sites lithium-alloy on Li plating process via first-principles calculations. We find that mechanisms Li22Sn5 surface are different due to sites. first propose goes through "adsorption–reduction–desorption–heterogeneous nucleation–cluster drop" process, while it undergoes "adsorption–reduction–growth" surface. The lower...
Electrolyte Design The essence of electrolyte engineering is the regulation Li+ solvation structure. However, there a lack simple and direct physicochemical parameters to guide design. In article number 2300259, Li Wang, Xiangming He propose electrostatic potential as solvent descriptor for conveniently designing electrolytes. This insight enables screening antisolvents, strong solvents, weakly solvating solvents.
Graphite is the dominant anode material for lithium‐ion batteries; however, it still suffers from Li‐plating when charging fast or at low temperature, and associated with performance fading safety concerns. Herein, we clarify mechanism of lithium evolution graphite particles by over‐lithiation cycle test, in‐situ XRD, titration gas chromatography. We observe that intercalation compounds (GICs, LiC 12 6 e.g.) gradually become inactive wrapped dead side reaction sediments, while rate this...
Abstract Metal hexacyanoferrates (HCFs) are regarded as promising cathode materials for potassium‐ion batteries (PIBs) on account of their low cost and high energy density. However, the difficult‐to‐remove [Fe(CN) 6 ] vacancies crystal water lead to structural instability capacity deterioration well stereotype poor thermostability conventional HCFs. Herein, we report (100) face‐oriented potassium magnesium hexacyanoferrate (KMgHCF) nanoplates with crystallinity, enabling up 550 °C,...