Beyond Polymerization: In Situ Coupled Fluorination Enables More Stable Interfaces for Solid-State Lithium Batteries

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

In situ polymerization strategies hold great promise for enhancing the physical interfacial stability in solid-state batteries, yet (electro)chemical degradation of polymerized interfaces, especially at high voltages, remains a critical challenge. Herein, we find interphase engineering is crucial process and polymer pioneer an polymerization-fluorination (Poly-FR) strategy to create durable interfaces with excellent stabilities, achieved by designing bifunctional initiator both on-surface lithium donor reactions. The integrated fluorination converts Li2CO3 impurities on LiNi0.8Co0.1Mn0.1O2 (NCM811) surfaces into LiF-rich interphases, effectively inhibiting aggressive (de)lithiation intermediates protecting interface from underlying chemical degradation, thereby surpassing limitations alone. Furthermore, Poly-FR mediated symmetric Li|Li cells achieve impressive cycling up 12,000 h. Solid-state NCM811 cathodes Li metal anodes realize ultrastable performance 400 cycles 83.4% retention voltage 4.5 V. This work points toward advanced beyond.

Language: Английский

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Leveraging polymer architecture design with acylamino functionalization for electrolytes to enable highly durable lithium metal batteries

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(18), P. 6739 - 6754

Published: Jan. 1, 2024

A novel polymer architecture design for GPEs is proposed via in situ copolymerization of VC and a new acylamino-crosslinker. This enables accelerated Li + transport dual-reinforced stable interfaces, contributing to long-lifespan LMBs.

Language: Английский

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Tailored Engineering on the Interface Between Lithium Metal Anode and Solid‐State Electrolytes

Energy & environment materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 4, 2024

The replacement of non‐aqueous organic electrolytes with solid‐state (SSEs) in lithium metal batteries (SLMBs) is considered a promising strategy to address the constraints lithium‐ion batteries, especially terms energy density and reliability. Nevertheless, few SLMBs can deliver required cycling performance long‐term stability for practical use, primarily due suboptimal interface properties. Given diverse solidification pathways leading different characteristics, it crucial pinpoint source deterioration develop appropriate remedies. This review focuses on Li|SSE issues between anode SSE, discussing recent advancements understanding (electro)chemistry, impact defects, evolutions that vary among SSE species. state‐of‐the‐art strategies concerning modified SEI, artificial interlayer, surface architecture, composite structure are summarized delved into internal relationships characteristics enhancements. current challenges opportunities characterizing modifying suggested as potential directions achieving SLMBs.

Language: Английский

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Ultra-thin, Scalable, and MOF Network-Reinforced Composite Solid Electrolyte for All-Solid-State Lithium Metal Batteries

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 124009 - 124009

Published: March 1, 2025

Language: Английский

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Improving thermal stability and kinetical properties through polymer brushes towards wide-temperature solid-state lithium metal batteries

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112328 - 112328

Published: Feb. 1, 2025

Language: Английский

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Construction of solid-state lithium batteries with high energy density and high safety by in-situ polymerization

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 514, P. 163402 - 163402

Published: May 6, 2025

Language: Английский

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Isocyanurate‐Derivative Enables Highly Compatible Poly‐Dioxane Electrolyte for Dendrite‐Free Li Metal Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 30, 2024

Abstract The Li + transport kinetics and electrochemical stability of advanced solid‐state metal batteries (SLMBs) are seriously limited by the actual electrolyte compositions. Here, a novel polyether‐based (PTGDOX) is presented through in situ co‐polymerization integrating 1,3‐dioxane with multifunctional 1,3,5‐triglycidyl isocyanurate additive. group PTGDOX not only provides abundant coordinating sites for transfer restricts movement anions, but also prompts beneficial inorganic‐rich solid interface on electrode. As result, exhibits remarkably increased ionic conductivity 0.48 mS cm −1 at 30 °C reasonable Li‐ion transference number 0.68, enabling Li||Li symmetric cells to stably cycle over 2000 h 1 mAh −2 . Meanwhile, assembled Li||LiFePO 4 exhibit 97.4% capacity retention after 700 cycles 3 C excellent thermal stability. Moreover, demonstrates interfacial compatibility high‐voltage LiNi 0.8 Co 0.1 Mn O 2 cathode. such, this work facile accessible strategy designing interface‐stable polymer electrolytes achieving practical dendrite‐free SLMBs.

Language: Английский

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In situ polymerized ether-based polymer electrolytes towards practical lithium metal batteries

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 11, 2024

Commercial lithium-ion batteries that use flammable liquid electrolytes face significant safety risks, such as fires caused by electrolyte leaks. Solid polymer (SPEs) present a viable solution to this problem, with ether-based standing out due their superior stability and compatibility lithium metal. The

Language: Английский

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An oxygen-defective framework with intensified Lewis acidity reinforcing composite electrolyte for all-solid-state lithium metal batteries

Energy storage materials, Journal Year: 2024, Volume and Issue: 73, P. 103847 - 103847

Published: Oct. 18, 2024

Language: Английский

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