Ultralong Cycling and Interfacial Regulation of Bilayer Heterogeneous Composite Solid-State Electrolytes in Lithium Metal Batteries

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(26), P. 33578 - 33589

Published: June 21, 2024

Under the background of "carbon neutral", lithium-ion batteries (LIB) have been widely used in portable electronic devices and large-scale energy storage systems, but current commercial electrolyte is mainly liquid organic compounds, which serious safety risks. In this paper, a bilayer heterogeneous composite solid-state (PLPE) was constructed with 3D LiX zeolite nanofiber (LiX-NF) layer in-situ interfacial layer, greatly extends life span lithium metal (LMB). LiX-NF not only offers continuous fast path for Li+, also zeolite's Lewis acid-base interaction can immobilize large anions, significantly improves electrochemical performance electrolyte. addition, at electrode-electrolyte interface effectively facilitate uniform deposition Li+ inhibit growth dendrites. As result, Li/Li battery assembled PLPE be stably cycled more than 2500 h 0.1 mA cm-2. Meanwhile, initial discharge capacity LiFePO4/PLPE/Li 162.43 mAh g-1 0.5 C, retention rate 82.74% after 500 cycles. These results emphasize that has distinct properties shows excellent potential application LMB.

Language: Английский

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Hydrogen-bonded organic frameworks for environmental remediation and energy applications: A bibliometric analysis of research progress and prospects

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 341, P. 103504 - 103504

Published: April 6, 2025

Language: Английский

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Hydrogen‐Bonding Assembly Meets Anion Coordination Chemistry: Framework Shaping and Polarity Tuning for Xenon/Krypton Separation

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(49)

Published: Oct. 25, 2023

Hybrid hydrogen-bonded (H-bonded) frameworks built from charged components or metallotectons offer diverse guest-framework interactions for target-specific separations. We present here a study to systematically explore the coordination chemistry of monovalent halide anions, i.e., F- , Cl- Br- and I- with aim develop hybrid H-bond synthons that enable controllable construction microporous H-bonded exhibiting fine-tunable surface polarity within adaptive cavities realistic xenon/krypton (Xe/Kr) separation. The spherical especially are found readily participate in charge-assisted H-bonding assembly well-defined behaviors, resulting robust bearing open anions distinctive 1D pore channels. activated show preferential binding towards Xe (IAST Xe/Kr selectivity ca. 10.5) because enhanced polarizability confinement effect. Specifically, dynamic column separation record-high factor (SF=7.0) among was achieved, facilitating an efficient dilute, CO2 -containing gas streams exactly mimicking off-gas spent nuclear fuel (SNF) reprocessing.

Language: Английский

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Palygorskite‐Derived Ternary Fluoride with 2D Ion Transport Channels for Ampere Hour‐Scale Li‐S Pouch Cell with High Energy Density

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(4)

Published: Nov. 28, 2023

Abstract Although various excellent electrocatalysts/adsorbents have made notable progress as sulfur cathode hosts on the lithium‐sulfur (Li‐S) coin‐cell level, high energy density ( W G ) of practical Li‐S pouch cells is still limited by inefficient Li‐ion transport in thick under low electrolyte/sulfur (E/S) and negative/positive (N/P) ratios, which aggravates shuttle effect sluggish redox kinetics. Here a new ternary fluoride MgAlF 5 ·2H 2 O with ultrafast ion conduction–strong polysulfides capture integration developed. has an inverse Weberite‐type crystal framework, corner‐sharing [AlF 6 ]–[MgF 4 (H O) ] octahedra units extend to form two‐dimensional channels along [100] [010] directions, respectively. Applied host, lithiated LiTFSI (lithium salt electrolyte) acts fast ionic conductor ensure efficient accelerate kinetics S loadings E/S N/P. Meanwhile, strong polar captures chemisorption suppress effect. Therefore, 1.97 A h‐level cell achieves 386 Wh kg −1 . This work develops new‐type conductor, provides unique insights for designing cells.

Language: Английский

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Uniform lithium deposition regulated by lithiophilic Mo3N2/MoN heterojunction nanobelts interlayer for stable lithium metal batteries

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146612 - 146612

Published: Oct. 10, 2023

Language: Английский

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