A5007220442- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced battery technologies research
- Advanced Battery Technologies Research
- Thermal Expansion and Ionic Conductivity
- Supercapacitor Materials and Fabrication
- Electrocatalysts for Energy Conversion
- Extraction and Separation Processes
- Chemical Synthesis and Characterization
- Inorganic Fluorides and Related Compounds
- Perovskite Materials and Applications
- Catalysis for Biomass Conversion
Hefei University of Technology
2021-2025
Regulating the Zn deposition orientation is an efficient way to suppress dendrites and stabilize anodes in aqueous ion batteries (ZIBs). Few studies have been conducted control Zn(002) by altering Zn2+ solvation structure with a cosolvent. Herein, bifunctional high-polarity cosolvent hexamethylphosphoramide (HMPA) proposed electrolyte. It not only suppresses H2 evolution reaction via reshaped decreased H2O activity but also induces hexagonal-close-packed morphology due strong absorption...
Abstract Considered the promising anode material for next‐generation high‐energy lithium‐ion batteries, SiO x has been slow to commercialize due its low initial Coulombic efficiency (ICE) and unstable solid electrolyte interface (SEI) layer, which leads reduced full‐cell energy density, short cycling lives, poor rate performance. Herein, a novel strategy is proposed in situ construct an artificial hybrid SEI layer consisting of LiF Li 3 Sb on prelithiated via spontaneous chemical reaction...
The applications of Na metal batteries (SMBs) are restricted owing to the capacity attenuation and safety hazards during cycling process, while a rational design electrolyte is critical on solving this problem. In work, an designed by adding 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropylether (TTE) into 3.8 M sodium bis(fluorosulfonyl)imide/1,2-dimethoxyethane (NaFSI/DME) electrolyte, forming localized high-concentration (LHCE) for constructing stable solid interface (SEI) SMBs. Ab...
Deep eutectic electrolytes (DEEs) provide a safe solution for high-temperature batteries. While promising, the DEEs/electrode interphase chemistry and underlying temperature mechanism remain unclear. Herein, DEE is formulated with succinonitrile (SCL) lithium bis(fluorosulfonyl) imide (LiFSI) to promote mesocarbon microbead (MCMB) anode in Li-ion The temperature-sensitive of solid electrolyte (SEI) evolution on MCMB deciphered, core which temperature-regulated solvation chemistry....
Aqueous zinc batteries are the ideal choices to realize intrinsically safe energy storage, but parasitic side reactions make it difficult achieve in practice. Although cosolvent electrolyte effectively inhibits dendrites and mitigates unexpected reactions, brings inevitable kinetics losses. Here, we systematically investigate compare interactions between Zn2+ various oxygen-coordinated cosolvents under pure aqueous environments OTf- mixed solvent containing different cosolvents. And...
A lithium metal anode and high nickel ternary cathode are considered viable candidates for energy density batteries (LMBs). However, unstable electrode-electrolyte interfaces structure degradation of materials lead to serious capacity decay, consequently hindering their practical applications in LMBs. Herein, we introduced N,O-bis(trimethylsilyl) trifluoro acetamide (BTA) as a multifunctional additive removing trace water hydrofluoric acid (HF) from the electrolyte inhibiting corrosive HF...
Fluorinated‐ethers are promising electrolyte solvents in lithium metal batteries, for their high antioxidant and excellent reductive stability on Li anode. However, fluorinated‐ethers with fluorination degree suffer from low ionic conductivity narrow temperature adaptibility. Herein, we synthesize a mono‐fluorinated linear ether of bis(2‐fluoroethoxy) methane (BFME) enhanced solvated ability. The ‐OCH2O‐ structure fluoride substitution the β‐C position endows BFME moderate affinity to Li+,...
Fluorinated‐ethers are promising electrolyte solvents in lithium metal batteries, for their high antioxidant and excellent reductive stability on Li anode. However, fluorinated‐ethers with fluorination degree suffer from low ionic conductivity narrow temperature adaptibility. Herein, we synthesize a mono‐fluorinated linear ether of bis(2‐fluoroethoxy) methane (BFME) enhanced solvated ability. The ‐OCH2O‐ structure fluoride substitution the β‐C position endows BFME moderate affinity to Li+,...
Severe Zn dendrite and H2 evolution reaction (HER) derived from high activity of free H2O hinder the commercialization aqueous Zn-ion batteries (AZIBs). Regulating Zn2+ solvation structure is a straightforward way to solve above issues. Herein, polar solvent, tetramethylurea (TMU), designed as co-solvent in electrolyte, which can form strong interactions with via -C=O group, conducing reshape Zn2+-solvation interrupt intrinsic hydrogen-bonds (H-bonds) H2O. Furthermore, steric-repulsion...
Lithium metal batteries (LMBs) with high loading and current density can be achieved by tailoring electrolyte components. As an effective film-forming additive, diphenyl azidophosphate (DPPA) has been proposed here to construct conductive solid interphase (SEI) layers on the Li anode surface enriched Li3N P–O compounds. Compared cells without DPPA Li∣∣Cu 1% demonstrate evaluated accurate Coulombic efficiency (CE) from 77.9% 93.8%, Li∣∣Li symmetric are able cycle for more than 250 h at of 2...
Current knowledge and works on high-energy-density Li metal batteries (LMBs) mainly focus their room-temperature performances. However, the wide-temperature properties of LMBs manifesting greater significance in large-scale applications are rarely explored. In this work, two LiDFBOP-based multi-salt low-concentration electrolytes (LCEs) proposed further explored by experiments theoretical calculations for LMBs. Molecular dynamics (MD) simulations reveal weaker attractive interactions between...