Surficial Regulation of LLZO for High Performance Composite Solid Electrolyte

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Язык: Английский

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A Hierarchically Designed Janus Polymer Electrolyte for High‐Performance Lithium‐Metal Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 10, 2025

Abstract Practical implementations of solid polymer electrolytes (SPEs) in solid‐state lithium‐metal batteries (SSLMBs) are inhibited by the limited lithium‐ion (Li + ) transport and poor‐quality interface between SPEs both electrodes. exhibit lower ionic conductivity than other oxidized decomposed oxide‐based cathode materials high‐voltage windows. SSLMBs also long‐term destabilized parasitic side reactions at electrode–electrolyte interfaces Li dendrite formations. This study proposes a selectively designed Janus‐structured electrolyte (JPE), which is more physically chemically compatible with electrodes SPEs. The proposed JPE includes cathode‐facing composite (C‐CPE) containing succinonitrile 7 La 3 Zr 2 O 12 , an anode‐facing (A‐CPE) incorporating fluoroethylene carbonate (FEC). C‐CPE layer provides additional paths increases antioxidant properties, improving tolerance SSLMB, while A‐CPE alleviates metal anode improves stability against protruding dendrites. Full cells Li|JPE|Ni 0.8 Co 0.15 Al 0.05 Li|JPE|LiCoO remain stable over 1600 cycles 1 C, demonstrating potential structures for SSLMBs. Moreover, symmetric Li||Li assembled cycle 2500 h 0.1 mA cm −2 1000 0.5 .

Язык: Английский

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Enhancing Stability Pvdf-Hfp-Based Ternary Gel Electrolyte for Dendrite-Free Lithium Metal Anodes

Опубликована: Янв. 1, 2025

Язык: Английский

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Dual-Shielding Solvent Strategy of High Dipole-Moment Monomers for Stabilizing Gel Polymer-Based Lithium Metal Batteries

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Gel polymer electrolytes exhibit excellent interfacial compatibility and high ionic conductivity attributed to the incorporation of dipole-moment solvents. However, these solvents preferentially adsorb onto anode compared polymer, decomposing into an organic-rich layer with sluggish Li-ion transport kinetics. Furthermore, dominate solvation structure, intensifying formation unstable layers. Herein, a dual-shielding solvent strategy involving higher monomers is proposed mitigate undesirable effects in situ gelled electrolytes. High (allylthiourea 1,1,1,3,3,3-hexafluoroisopropyl acrylate) enhanced electrostatic adsorption, displacing adsorbed lithium metal. Moreover, robust dipole-dipole interactions between inhibit coordination Li-ions, resulting anion-dominated structures. This enables functional more anions synergistically form stable passivation rich LiF Li2S. Consequently, symmetric battery can operate stably for 5000 h at current density 0.25 mA cm-2, LiFePO4||Li maintains 97% capacity retention rate after 2000 cycles 2 C. work integrates properties design gel electrolytes, offering promising addressing challenges metal batteries.

Язык: Английский

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Recent Progress on Solid-State Electrolytes based on Nanocellulose: Structures, Applications, and Challenges

Materials Today Energy, Год журнала: 2025, Номер unknown, С. 101891 - 101891

Опубликована: Апрель 1, 2025

Язык: Английский

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Preparation and Performance of PVDF-HFP/PAN-Based Gel Polymer Electrolytes

Gels, Год журнала: 2025, Номер 11(5), С. 317 - 317

Опубликована: Апрель 24, 2025

Solid-state electrolytes are widely expected to enhance the performance of lithium-ion batteries, providing higher energy density and improved safety. However, challenges still need be solved in their practical application due low ionic conductivity high interfacial resistance at room temperature. In this study, we successfully developed a high-performance gel polymer electrolyte (GPEs) by blending poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP) polyacrylonitrile (PAN) through UV curing, cross-linking with ethoxylated trimethylolpropane triacrylate (ETPTA), incorporating Li6.4La3Zr1.4Ta0.6O12 (LLZTO). At temperature, GPEs was 2.8 × 10−4 S/cm, transference number 0.6. Moreover, during lithium plating/stripping tests, assembled Li/PPEL/Li symmetric cell exhibited stable cycling for up 600 h current 0.1 mA/cm2. Notably, enabled LiFePO4/GPEs/Li battery achieve excellent performance, delivering discharge capacities temperature (164.3 mAh g−1 C 88.8 1 C), capacity retention 89.4% after 200 cycles 0.5 C. Therefore, solid-state batteries using exhibit including adequate stability.

Язык: Английский

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In‐situ polymerized solid/quasi‐solid polymer electrolyte for lithium‐metal batteries: recent progress and perspectives

Chemistry - A European Journal, Год журнала: 2024, Номер unknown

Опубликована: Окт. 11, 2024

Abstract In pursuit of high energy density, lithium metal batteries (LMBs) are undoubtedly the best choice. However, leakage and inevitable dendrite growth in liquid electrolytes seriously hinder its practical application. Solid/quasi‐solid state have emerged as an answer to solve above issues. Especially, polymer with excellent interface compatibility, flexibility, ease machining become a research hotspot for LMBs. Nevertheless, contact between electrolyte inorganic electrode materials low ionic conductivity restrict development. On account these, situ polymerized is proposed. Polymer solid produced through polymerization promote robust while simplifying preparation steps. This review summarized latest progress These were divided into three parts according their methods: thermally induced polymerization, chemical initiator ionizing radiation so on. Furthermore, we concluded major challenges future trends It's hoped that this will provide meaningful guidance on designing high‐performance

Язык: Английский

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Solid‐State Electrolytes for Lithium Metal Batteries: State‐of‐the‐Art and Perspectives

Advanced Functional Materials, Год журнала: 2024, Номер 35(1)

Опубликована: Окт. 31, 2024

Abstract The use of all‐solid‐state lithium metal batteries (ASSLMBs) has garnered significant attention as a promising solution for advanced energy storage systems. By employing non‐flammable solid electrolytes in ASSLMBs, their safety profile is enhanced, and the anode allows higher density compared to traditional lithium‐ion batteries. To fully realize potential solid‐state (SSEs) must meet several requirements. These include high ionic conductivity Li + transference number, smooth interfacial contact between SSEs electrodes, low manufacturing cost, excellent electrochemical stability, effective suppression dendrite formation. This paper delves into essential requirements enable successful implementation ASSLMBs. Additionally, representative state‐of‐the‐art examples developed past 5 years, showcasing latest advancements SSE materials highlighting unique properties are discussed. Finally, provides an outlook on achieving balanced improved addressing failure mechanisms solutions, critical challenges such reversibility plating/stripping thermal runaway, characterization techniques, composite SSEs, computational studies, ASS lithium–sulfur lithium–oxygen With this consideration, ASSLMBs can be realized.

Язык: Английский

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Interfacial fusion-enhanced 11 µm-thick gel polymer electrolyte for high-performance lithium metal batteries

Journal of Energy Chemistry, Год журнала: 2024, Номер 98, С. 58 - 66

Опубликована: Июнь 25, 2024

Язык: Английский

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Integration of gel polymer electrolytes with dry electrodes for quasi-solid-state batteries

Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 155544 - 155544

Опубликована: Сен. 6, 2024

Язык: Английский

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