A5068070718- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Advanced battery technologies research
- Inorganic Chemistry and Materials
- Layered Double Hydroxides Synthesis and Applications
- Extraction and Separation Processes
- Synthesis and properties of polymers
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Electrocatalysts for Energy Conversion
- MXene and MAX Phase Materials
Hefei National Center for Physical Sciences at Nanoscale
2020-2025
University of Science and Technology of China
2019-2025
Hefei University
2019
Abstract Rechargeable lithium metal batteries (LMBs) have attracted wide attention for future electric vehicles and next‐generation energy storage because of their exceptionally high specific density. Recently, the development electrode materials LMBs has been extensively discussed reviewed in literature, but there very few reports that systematically review status progress electrolytes such applications. Actually, viability practical critically depends on suitable liquid due to reactivity...
Abstract Lithium metal is an ideal electrode material for future rechargeable lithium batteries. However, the widespread deployment of metallic anode significantly hindered by its dendritic growth and low Coulombic efficiency, especially in ester solvents. Herein, rationally manipulating electrolyte solvation structure with a high donor number solvent, enhancement solubility nitrate ester‐based successfully demonstrated, which enables high‐voltage Remarkably, concentration LiNO 3 additive...
The electrolyte solvation structure and the solid-electrolyte interphase (SEI) formation are critical to dictate morphology of lithium deposition in organic electrolytes. However, link between SEI composition its implications on evolution poorly understood. Herein, we use a single-salt single-solvent model system systematically study correlation structure, process morphology. mechanism is thoroughly investigated using cryo-electron microscopy characterizations computational simulations. It...
Abstract In recent years, due to its great promise in boosting the energy density of lithium batteries for future storage, research on Li metal anode, as an alternative graphite anode Li‐ion batteries, has gained significant momentum. However, practical use anodes been plagued by unstable (re)deposition and poor cyclability. Although tremendous efforts have devoted stabilization anodes, mechanisms electrochemical (re‐)deposition/dissolution solid‐electrolyte‐interphase (SEI) formation remain...
The stable cycling of Mg-metal anodes is limited by several problems, including sluggish electrochemical kinetics and passivation at the Mg surface. In this study, we present a high-entropy electrolyte composed lithium triflate (LiOTf) trimethyl phosphate (TMP) co-added to magnesium bis(trifluoromethane sulfonyl)imide (Mg(TFSI)2 /1,2-dimethoxyethane (DME) significantly improve performance anodes. as-formed Mg2+ -2DME-OTf- -Li+ -DME-TMP solvation structure effectively reduced -DME interaction...
Abstract The surface morphology of Li metal anode significantly dictates the stability and safety batteries. key parameters for morphological control causes dendritic growth are still not clear. Although plating kinetics is generally believed to be associated with habits, detailed models well defined. In this work, temperature effect on efficiency systematically investigated in a variety electrolyte composition A dendrite‐free mechanism observed, high Coulombic up ≈99.4% Li||Cu cells...
Abstract Lithium (Li) metal is regarded as the ultimate anode for next‐generation Li‐ion batteries due to its highest specific capacity and lowest electrochemical potential. However, Li has limitations, including virtually infinite volume change, nonuniform deposition, an unstable electrode–electrolyte interface, which lead rapid degradation poor cycling stability, significantly hindering practical application. To address these issues, intensive efforts have been devoted toward accommodating...
Abstract Sodium metal batteries have attracted rapidly rising attention due to their low cost and high energy densities. However, the instability efficiency of metallic sodium anodes pose significant concerns for practical applications. Here a highly stable anode enabled by an ether‐based electrolyte is reported, which exhibits long‐term cycling up 400 cycles achieves unprecedentedly average Coulombic over ≈99.93%. It revealed that organic/inorganic hybrid structure containing B–O species...
Calcium-metal batteries (CMBs) provide a promising option for high-energy and cost-effective energy-storage technology beyond the current state-of-the-art lithium-ion batteries. Nevertheless, development of room-temperature CMBs is significantly impeded by poor reversibility short lifespan calcium-metal anode. A solvation manipulation strategy reported to improve plating/stripping anodes enhancing desolvation kinetics calcium ions in electrolyte. The introduction lithium salt changes...
Abstract Transition metal sulfides hold promising potentials as Li‐free conversion‐type cathode materials for high energy density lithium batteries. However, the practical deployment of these is hampered by their poor rate capability and short cycling life. In this work, authors take advantage hollow structure CuS nanoboxes to accommodate volume expansion facilitate ion diffusion during discharge–charge processes. As a result, achieve excellent performance (≈371 mAh g −1 at 20 C) ultra‐long...
Significant challenges remain in developing rechargeable zinc batteries mainly because of reversibility problems on zinc-metal anodes. The dendritic growth and hydrogen evolution electrodes are major obstacles to overcome practical safe batteries. Here, a dendrite-free hydrogen-free Zn-metal anode with high Coulombic efficiency up 99.6% over 300 cycles is realized newly designed nonaqueous electrolyte, which comprises an inexpensive salt, acetate, green low-cost solvent, dimethyl sulfoxide....
The development of low-temperature lithium metal batteries (LMBs) encounters significant challenges because severe dendritic growth during the charging/discharging processes. To date, precise origin dendrite formation still remains elusive due to intricate interplay between highly reactive anode and organic electrolytes. Herein, we unveil critical role interfacial defluorination kinetics localized high-concentration electrolytes (LHCEs) in regulating formation, thereby determining...
Abstract The development of lithium–metal batteries (LMBs) has emerged as a mainstream approach for achieving high‐energy‐density energy storage devices. stability electrochemical interfaces plays an essential role in realizing stable and long‐life LMBs. Despite extensive comprehensive research on the lithium anode interface, there is limited focus cathode particularly regarding high‐voltage transition metal oxide materials. In this review, challenges associated with developing materials are...
Sodium metal batteries have attracted extensive attentions due to their high energy density and low-cost resources. However, the realization of Na anodes is still hampered by intrinsic dendrite growth uncontrollable volumetric expansion. Herein, a hybrid rGO/MXene film fabricated via filtration spark approach, which used as sodiophilic anode host for stabilizing sodium-metal anode. The surface-attached MXene nanosheets could regulate sodium deposition behavior suppress growth, while reduced...
Abstract Ether‐based electrolytes are considered as an ideal electrolyte system for sodium metal batteries (SMBs) due to their superior compatibility with the anode (SMA). However, selection principle of ether solvents and impact on solid interphase formation still unclear. Herein, we systematically compare chain ether‐based understand relationship between solvation structure interphasial properties. The linear solvent molecules different terminal group lengths demonstrate remarkably...
Abstract High energy density lithium metal batteries (LMBs) have garnered significant research interests in the past decades. However, growth of dendrites and low Coulombic efficiency (CE) Li anode pose challenges for development LMBs. Herein, we report a triethyl orthoformate (TEOF)-based localized high-concentration electrolyte (LHCE) that facilitates highly reversible with dendrite-free deposition morphologies an average 99.1% 450 cycles. Mechanistic study reveal steric hindrance caused...
Abstract Lithium metal is an ideal electrode material for future rechargeable lithium batteries. However, the widespread deployment of metallic anode significantly hindered by its dendritic growth and low Coulombic efficiency, especially in ester solvents. Herein, rationally manipulating electrolyte solvation structure with a high donor number solvent, enhancement solubility nitrate ester‐based successfully demonstrated, which enables high‐voltage Remarkably, concentration LiNO 3 additive...
It is significantly challenging to stabilize sodium metal anodes in carbonate electrolytes. Here, we report that a anode can achieve high coulombic efficiency of up ∼97% over 400 cycles at 0.1 mA cm-2 electrolyte with NaAsF6 as an additive. revealed the SEI layer contains large amount NaF and O-As-O polymer which enables stable cycling anodes.
Sodium metal anodes are commonly limited by low Coulombic efficiency and an unstable interface between Na carbonate ester electrolytes. Herein, a freestanding implantable artificial protective layer with strong mechanical rigidity is reported as feasible strategy to suppress the dendrite stabilize interface, which realizes high of ∼96% in carbonate-based electrolyte. Furthermore, enables good cycling performance for sodium battery only 300% anode excess under voltage. This work highlights...
Rechargeable magnesium batteries (RMBs) are considered as one of the most promising next-generation secondary due to their low cost, safety, dendrite-free nature, well high volumetric energy density. However, lack suitable cathode material and electrolyte is greatest challenge facing practical RMBs. Herein, a hybrid MgCl2/AlCl3/Mg(TFSI)2 (MACT) in dimethyl ether (DME) developed exhibits excellent electrochemical performance. The ionic conductivity (6.82 mS cm–1) unique solvation structure...
Abstract: Lithium metal batteries, which use lithium as the anode, have attracted tremendous research interest in recent years, owing to their high energy density and potential for future storage applications. Despite advantages such density, safety concerns short lifespan significantly impede practical applications transportation electronic devices. Tremendous efforts been devoted overcoming these problems, including materials design, interface modification, electrolyte engineering. Among...