Solid composite electrolyte with a Cs doped fluorapatite-interfacial layer enabling dendrite-free anodes for solid-state lithium batteries

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153823 - 153823

Published: July 14, 2024

Language: Английский

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In situ formation of Li3N interlayer enhancing interfacial stability of solid-state lithium batteries

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 685, P. 595 - 603

Published: Jan. 20, 2025

Language: Английский

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In Situ Co-Growth Lif-Li3n Rich Dual-Protective Layers Enable High Interface Stability for Solid-State Lithium-Metal Batteries

Published: Jan. 1, 2024

Lithium metal anodes hold promise for next-generation high-energy-density batteries. However, serious dendrite formation and unstable solid electrolyte interphase (SEI) impede their practical implementation. Herein, a novel gel polymer (GPE) integrated design is exploited to in situ co-growth Li3N LiF rich SEI by improving electron transfer kinetics enhancing mechanical properties. Specifically, polyethylene glycol diacrylate used as GPE matrix form robust crosslinked network. Meanwhile, the high transport capacity of acrylonitrile promotes generation Li3N. The polyfluorinated introduction boosts kinetics, facilitating C-F bond cleavage LiF. Finally, dual-protective constructed, which regulates ion flux achieves dendrite-free lithium deposition. Impressively, treated symmetrical cell demonstrates excellent plating/stripping cycling 1000 h at 0.5 mA cm−2 with notably reduced overpotentials (50 mV). Moreover, obtained GEL@F matched LiFePO4 displays good stability over 400 cycles 91.8% retention 1 C. Concurrently, paired LiCoO2 drives 82.8% after 200 cycles. This study introduces rational from structural composition optimize chemical activity/physical properties interfaces.

Language: Английский

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In situ co-growth LiF-Li3N rich dual-protective layers enable high interface stability for solid-state lithium-metal batteries

Energy storage materials, Journal Year: 2024, Volume and Issue: 70, P. 103564 - 103564

Published: June 1, 2024

Language: Английский

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Enthalpy‐Driven Molecular Engineering Enables High‐Performance Quasi‐Solid‐State Electrolytes for Long Life Lithium Metal Batteries

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract The advancement of lithium metal batteries toward their theoretical energy density potential remains constrained by safety and performance issues inherent to liquid electrolytes. Quasi‐solid‐state electrolytes (QSSEs) based on poly‐1,3‐dioxolane (poly‐DOL) represent a promising development, yet challenges in achieving satisfactory Coulombic efficiency long‐term stability have impeded practical implementation. While nitrate addition can enhance efficiency, its incorporation results prohibitively slow polymerization rates spanning several months. In this work, high‐polymerization‐enthalpy 1,1,1‐trifluoro‐2,3‐epoxypropane is introduced as co‐polymerization promoter, successfully integrating into poly‐DOL‐based QSSEs. resulting electrolyte demonstrates exceptional with 2.23 mS cm −1 ionic conductivity at 25 °C, 99.34% Li|Cu cells, stable interfaces sustained through 1300 h symmetric cell cycling. This approach also suppresses poly‐DOL crystallization, enabling Li|LiFePO 4 cells maintain beyond 2000 cycles 1C. Scale‐up validation ≈1 Ah Li|NCM811 pouch achieves 94.4% capacity retention over 60 cycles. strategy establishes new pathway for developing high‐performance, situ polymerized quasi‐solid‐state storage applications.

Language: Английский

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A Flexible and Mechanical Robust All-Solid-State Polymer Electrolyte with Microphase Separated Structure for Lithium-Ion Battery

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(19), P. 24671 - 24682

Published: May 2, 2024

Polyethylene oxide (PEO)-based electrolytes are the most widely used solid polymer electrolyte (SPE) due to their high safety, excellent ability dissociate lithium salts, low cost, and ease of preparation. However, ionic conductivity narrow electrochemical stability window limit potential for further development. "Polymer-in-salt" exhibit superior performance; however, salt concentration makes SPE mechanically fragile when facing dendrites. Therefore, preparing an that can withstand a while still maintaining good mechanical properties has become valuable challenge. In this study, macroscopically homogeneous but nanoscopically phase-separated matrix was designed as retaining properties, study investigated changes in Li+ solvation structure within analyzed reasons simultaneous achievement (1.02 × 10–3 S cm–1 at 60 °C) (7 MPa room temperature). The formation large ion clusters phase interface selective enrichment specific regions found play crucial roles, critical current density (CCD) reach value 2.2 mA cm–2. This work demonstrates promising design approach achieves optimal balance between through microstructure control.

Language: Английский

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Advances in electrolyte–anode interface engineering of solid‐state lithium metal batteries

Interdisciplinary materials, Journal Year: 2024, Volume and Issue: 3(6), P. 805 - 834

Published: July 30, 2024

Abstract Solid‐state lithium metal batteries are considered to be the next generation of energy storage systems due high density brought by use anode and safety features solid electrolytes (SEs). Unfortunately, besides features, using SEs brings issues interfacial contact electrolytes. Recently, realize application solid‐state batteries, significant achievements have been made in interface engineering various new strategies proposed. In this review, from failure perspective we summarize mechanisms terms poor physical contact, weak chemical/electrochemical stability, continuing degradation, uncontrollable deposition. We then focused on latest for solving issues, including advancing improving solid–solid increasing electrochemical/chemical restraining controlling homogeneous The ultimate paramount future developing directions battery

Language: Английский

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Construction of ZIF-8 modified laponite to enable polyvinylidene fluoride-based solid-state electrolyte with high lithium flux

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Progress and Perspectives of Garnet-Based Solid-State Lithium Metal Batteries: Toward Low Resistance, High Energy Density and Improved Cycling Capability

Electrochemical Energy Reviews, Journal Year: 2025, Volume and Issue: 8(1)

Published: April 9, 2025

Language: Английский

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An anisotropic strategy for developing polymer electrolytes endowing lithium metal batteries with electrochemo-mechanically stable interface

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: April 16, 2025

Abstract Developing versatile solid polymer electrolytes is a reasonable approach to achieving reliable lithium metal batteries but still challenging due the nonuniform deposition associated with sluggish Li + kinetics and insufficient mechanical strength. Herein, concept of developing anisotropic electrolyte realized via integrating hosts highly oriented polyacrylonitrile nanofibers modified by 6.4 La 3 Zr 1.4 Ta 0.6 O 12 particles. The composite structure employed homogenize flux, serving as physical barrier resist dendrites, retarding side reaction between lithium, thus endowing compatible interface for negative electrode. Correspondingly, | |LiFePO 4 cells steadily operate over 1000 cycles, delivering durable capacity retention 91% at 170 mA g -1 . Furthermore, numerical modeling density functional theory are combined clarify multiphysics interplay designed This work provides perspective constructing interface-friendly an electrochemo-mechanical level.

Language: Английский

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