Electrostatic Force‐Tailored PEO‐Based Solid Electrolyte with Fast Li⁺ Transport for Ultra‐Robust Lithium Metal Batteries

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

Published: Feb. 24, 2025

Abstract Polyethylene oxide (PEO)‐based solid polymer electrolytes exhibit promising commercial prospects due to their superior processability and scalability. However, limited ion transport unstable electrode/electrolyte interface restrict practical application. Herein, the paraelectric strontium titanate (STO) is introduced into PEO‐based solve those problems. The electrostatic force originating from polarized STO weakens coordination between EO Li + releases more free , thus promoting inside electrolyte. Numerous STOs form a new reverse electric field that inhibits lithium dendrites' vertical growth at anode interface. Polarized triggers generation of LiF, 2 O, 3 N‐riched electrolyte interphase (SEI), contributing interfacial stability mobility. Consequently, STO‐modified has an outstanding conductivity 0.61 mS cm −1 with 5.29 V. Li/Li symmetric battery undergoes >1200 h 0.2 mA −2 . A large capacity retention 85.3% after 850 cycles 1 C achieved for LFP/Li be cycled 600 times even against high‐loading cathode (LFP:6 mg ). This study provides novel strategy prepare composite‐modified solid‐state can utilized in metal batteries.

Language: Английский

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Fluorinated solvent enhances room-temperature solid-state lithium batteries by weakening Li+ ion and PEO chain interactions

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 690, P. 137302 - 137302

Published: March 15, 2025

Language: Английский

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Strategies for Advanced Solid Electrolytes toward Efficient Lithium-Ion Conduction in All-Solid-State Lithium Metal Batteries

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

All-solid-state lithium metal batteries (ASSLMBs) have currently garnered significant academic and industrial interest, due to their great potential overcome intrinsic shortages of poor energy density unsatisfactory safety liquid-state lithium-ion batteries. Recently, many efforts been made move the progress solid electrolytes (SEs) forward for ASSLMBs, especially on understanding optimization conduction in SEs. Herein, we summarize a review recent design strategies rational SEs that display enhanced conduction, as well discussion principles working mechanisms boosted performance stability ASSLMBs. Given intimate relationship between mechanism composition SEs, reported can generally be classified into single-phase composite In detail, contain three typical categories, e.g., polymer-based, inorganic, plastic crystal-based For there are also main kinds, including polymer-inorganic, crystal-polymer, crystal-polymer-inorganic ternary The state-of-the-art literature representative materials carefully discussed analyzed, with corresponding factors enhancing highlighted. Finally, an outlook future directions advanced efficient is presented development

Language: Английский

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Silicified-montmorillonite assisted in-situ construction of LiF-rich phase for enhanced interfacial stability in solid-state lithium batteries

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 693, P. 137585 - 137585

Published: April 12, 2025

Language: Английский

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Enhanced ionic conductivity in sodium-ion polymer electrolytes: The role of ethylene carbonate in optimizing NaPF6 based PEO:PVDF-HFP polymer electrolytes

Journal of Polymer Research, Journal Year: 2025, Volume and Issue: 32(5)

Published: April 24, 2025

Language: Английский

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