Ether-based electrolytes for sodium ion batteries

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(11), P. 4484 - 4536

Published: Jan. 1, 2022

Sodium-ion batteries (SIBs) are considered to be strong candidates for large-scale energy storage with the benefits of cost-effectiveness and sodium abundance. Reliable electrolytes, as ionic conductors that regulate electrochemical reaction behavior nature interface electrode, indispensable in development advanced SIBs high Coulombic efficiency, stable cycling performance rate capability. Conventional carbonate-based electrolytes encounter numerous obstacles their wide application due formation a dissolvable, continuous-thickening solid electrolyte (SEI) layer inferior stability electrodes. Comparatively, ether-based (EBEs) emerging secondary battery field fascinating properties improve batteries, especially SIBs. Their solvation structure enables highly reversible solvent-co-intercalation reactions thin SEI. However, although EBEs can provide more rapid sodiation kinetics electrodes, benefitting from favorable electrolyte/electrode interactions such chemical compatibility good wettability, special chemistry is still being investigated puzzling. In this review, we thorough comprehensive overview on developmental history, fundamental characteristics, superiorities mechanisms EBEs, together advances other systems. Notably, relation among science, interfacial highlighted, which great significance in-depth understanding chemistry. Finally, future perspectives potential directions proposed navigate design optimization interfaces batteries.

Language: Английский

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Recent Advances and Perspectives of Battery-Type Anode Materials for Potassium Ion Storage

ACS Nano, Journal Year: 2021, Volume and Issue: 15(12), P. 18931 - 18973

Published: Dec. 3, 2021

Potassium ion energy storage devices are competitive candidates for grid-scale applications owing to the abundancy and cost-effectiveness of potassium (K) resources, low standard redox potential K/K+, high ionic conductivity in K-salt-containing electrolytes. However, sluggish reaction dynamics poor structural instability battery-type anodes caused by insertion/extraction large K+ ions inhibit full K systems. Extensive efforts have been devoted exploration promising anode materials. This Review begins with a brief introduction operation principles performance indicators typical systems significant advances different types materials, including intercalation-, mixed surface-capacitive-/intercalation-, conversion-, alloy-, conversion-/alloy-, organic-type Subsequently, host-guest relationships discussed correlation electrochemical properties, underlying mechanisms, critical issues faced each type material concerning their implementation Several optimization strategies improve highlighted. Finally, perspectives on future trends provided, which aimed at accelerating development

Language: Английский

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Integrating Bi@C Nanospheres in Porous Hard Carbon Frameworks for Ultrafast Sodium Storage

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(28)

Published: May 6, 2022

Sodium-ion batteries (SIBs) have emerged as an alternative technology because of their merits in abundance and cost. Realizing real applications, however, remains a formidable challenge. One is that among the limitations anode materials, alloy-type candidates tolerate fast capacity fading during cycling. Here, 3D framework superstructure assembled with carbon nanobelt arrays decorated metallic bismuth (Bi) nanospheres coated layer by thermolysis Bi-based metal-organic nanorods synthesized material for SIBs. Due to unique structural superiority, design promotes excellent sodium-storage performance terms high capacity, cycling stability, ultrahigh rate capability up 80 A g-1 308.8 mAh . The unprecedented ability not only attributed hybrid architecture, but also production homogeneous thin solid electrolyte interface formation uniform porous nanostructures ether-based electrolyte. Importantly, deeper understanding underlying cause improvement illuminated, which vital provide theoretical basis application

Language: Английский

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Cyclic-anion salt for high-voltage stable potassium-metal batteries

National Science Review, Journal Year: 2022, Volume and Issue: 9(10)

Published: July 9, 2022

Electrolyte anions are critical for achieving high-voltage stable potassium-metal batteries (PMBs). However, the common cannot simultaneously prevent formation of 'dead K' and corrosion Al current collector, resulting in poor cycling stability. Here, we demonstrate cyclic anion hexafluoropropane-1,3-disulfonimide-based electrolytes that can mitigate remarkably enhance stability PMBs. Particularly, even using low salt concentration (0.8 M) additive-free carbonate-based electrolytes, PMBs with a polyanion cathode (4.4 V) also exhibit excellent 200 cycles good capacity retention 83%. This noticeable electrochemical performance is due to highly efficient passivation ability on both anode surfaces. cyclic-anion-based electrolyte design strategy suitable lithium sodium-metal battery technologies.

Language: Английский

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A tailored electrolyte for safe and durable potassium ion batteries

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(1), P. 305 - 315

Published: Jan. 1, 2023

Electrolytes are critical for the safety and long-term cyclability of potassium ion batteries. Here, a low-concentration, non-flammable, weakly solvating electrolyte enables cycling stability K||graphite cell over 2 years.

Language: Английский

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Electrolytes in Organic Batteries

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(4), P. 1712 - 1773

Published: Feb. 3, 2023

Organic batteries using redox-active polymers and small organic compounds have become promising candidates for next-generation energy storage devices due to the abundance, environmental benignity, diverse nature of resources. To date, tremendous research efforts been devoted developing advanced electrode materials understanding material structure–performance correlation in batteries. In contrast, less attention was paid between electrolyte structure battery performance, despite critical roles electrolytes dissolution materials, formation electrode–electrolyte interphase, solvation/desolvation charge carriers. this review, we discuss prospects challenges with an emphasis on electrolytes. The differences inorganic terms property requirements mechanisms are elucidated. provide a comprehensive thorough overview development batteries, divided into four categories including liquid electrolytes, aqueous solid polymer-based introduce different components, concentrations, additives, applications various carriers, interphases, separators. perspectives outlook future also discussed guidance design optimization We believe that review will stimulate in-depth study accelerate commercialization

Language: Английский

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Integration of homogeneous and heterogeneous nucleation growth via 3D alloy framework for stable Na/K metal anode

eScience, Journal Year: 2021, Volume and Issue: 1(1), P. 75 - 82

Published: Sept. 24, 2021

Sodium/Potassium (Na/K) metal anodes have been considered as the promising for next-generation Na/K secondary batteries owing to their ultrahigh specific capacity, low redox potential and cost. However, practical application is still hampered due unstable solid electrolyte interphase, infinite volume change, dendrite growth. Herein, we design a 3D-Na3Bi/3D-K3Bi alloy host which enables homogeneous heterogeneous nucleation growth of metal. The unique structure with periodic alternating electron ion conductivity improves mass transfer kinetics prevents expansion during cycling. Meanwhile, sodiophilicity Na3Bi/potassiophilicity K3Bi framework can avoid dendritic Cycling lifespans over 700 h 1 mAh cm−2 3D-Na3[email protected] electrode about 450 3D-K3[email are achieved, respectively. protected]||Na3V2(PO4)3 full battery shows sustainable cycle performance 400 cycles. This provides simple but effective approach achieving safety sodium/potassium anodes.

Language: Английский

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Prospects of Electrode Materials and Electrolytes for Practical Potassium‐Based Batteries

Small Methods, Journal Year: 2021, Volume and Issue: 5(12)

Published: Nov. 10, 2021

Potassium-ion batteries (PIBs) have attracted tremendous attention because of their high energy density and low-cost. As such, much effort has focused on developing electrode materials electrolytes for PIBs at the material levels. This review begins with an overview high-performance electrolytes, then evaluates prospects challenges practical to penetrate market. The current status safe operation, density, power cyclability, sustainability is discussed future studies materials, electrode-electrolyte interfaces are identified. It anticipated that this will motivate research development fill existing gaps potassium-based full so they may be commercialized in near future.

Language: Английский

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A Review on Regulating Li⁺Solvation Structures in Carbonate Electrolytes for Lithium Metal Batteries

Advanced Materials, Journal Year: 2022, Volume and Issue: unknown, P. 2206009 - 2206009

Published: Aug. 31, 2022

Lithium metal batteries (LMBs) are considered promising candidates for next-generation battery systems due to their high energy density. However, commercialized carbonate electrolytes cannot be used in LMBs poor compatibility with lithium anodes. While increasing cut-off voltage is an effective way boost the density of LMBs, conventional ethylene carbonate-based undergo a number side reactions at voltages. It therefore critical upgrade electrolytes, performance which highly influenced by solvation structure ions (Li+). This review provides comprehensive overview strategies regulate Li+ better understanding science behind and behavior. Different systematically compared help select specific applications. The remaining scientific technical problems pointed out, directions future research on proposed.

Language: Английский

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Weak Cation–Solvent Interactions in Ether‐Based Electrolytes Stabilizing Potassium‐ion Batteries

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(33)

Published: June 17, 2022

Abstract Conventional ether‐based electrolytes exhibited a low polarization voltage in potassium‐ion batteries, yet suffered from ion–solvent co‐intercalation phenomena graphite anode, inferior potassium‐metal performance, and limited oxidation stability. Here, we reveal that weakening the cation–solvent interactions could suppress behaviour, enhance improve Consequently, anode exhibits K + intercalation behaviour (K||graphite cell operates 200 cycles with 86.6 % capacity retention), potassium metal shows highly stable plating/stripping (K||Cu delivers 550 average Coulombic efficiency of 98.9 %) dendrite‐free (symmetric K||K over 1400 hours) properties, electrolyte high stability up to 4.4 V. The interaction tuning strategy provides promising method develop high‐performance beyond.

Language: Английский

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