Heterogeneous structure design for stable Li/Na metal batteries: Progress and prospects

eScience, Год журнала: 2024, Номер unknown, С. 100281 - 100281

Опубликована: Май 1, 2024

The growth of dendrites in Li/Na metal batteries is a multifaceted process that controlled by several factors such as electric field, ion transportation, temperature, and pressure. Rational design battery components has become viable approach to address this challenge. Among the various strategies, heterogeneous structures have been demonstrated be effective mitigating uneven deposition reducing local current density regulating sites. In review, we discuss comprehensively underlying principles influence dendrite growth, well synthesis approaches for structures. Furthermore, provide an overview diverse applications components. Finally, highlight existing challenges future directions use deposition.

Язык: Английский

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Molecule Crowding Strategy in Polymer Electrolytes Inducing Stable Interfaces for All‐Solid‐State Lithium Batteries

Advanced Materials, Год журнала: 2024, Номер 36(31)

Опубликована: Июнь 5, 2024

All-solid-state lithium batteries with polymer electrolytes suffer from electrolyte decomposition and dendrites because of the unstable electrode/electrolyte interfaces. Herein, a molecule crowding strategy is proposed to modulate Li

Язык: Английский

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Characterizing Electrode Materials and Interfaces in Solid-State Batteries

Chemical Reviews, Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

Solid-state batteries (SSBs) could offer improved energy density and safety, but the evolution degradation of electrode materials interfaces within SSBs are distinct from conventional with liquid electrolytes represent a barrier to performance improvement. Over past decade, variety imaging, scattering, spectroscopic characterization methods has been developed or used for characterizing unique aspects in SSBs. These efforts have yielded new understanding behavior lithium metal anodes, alloy composite cathodes, these various solid-state (SSEs). This review provides comprehensive overview strategies applied SSBs, it presents mechanistic SSB that derived methods. knowledge critical advancing technology will continue guide engineering toward practical performance.

Язык: Английский

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Tailoring Multiple Interactions in Poly (Urethane‐Urea)‐Based Solid‐State Polymer Electrolytes for Long‐Term Cycling Lithium Metal Batteries

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Abstract Polyethylene oxide (PEO)‐based solid polymer electrolytes (SPEs) are considered as one of the most promising candidates for next‐generation lithium metal batteries. However, their application is limited by poor electrode/electrolyte interfacial stability, low Li‐ions transference number, and weak mechanical strength. Herein, poly (urethane‐urea)‐based SPEs developed to enhance improve transport kinetics, provide superior properties. The (urethane‐urea) structure integrates abundant polar groups rigid conjugated moieties, which facilitate interactions with anions salt in SPEs, promoting number supporting formation a LiF‐rich electrolyte interphase (SEI) guide uniform deposition suppress dendrite growth. Furthermore, supramolecular crosslinked network formed through multiple hydrogen bonds π‐π stacking interactions, enhancing strength toughness SPEs. As result, Li//Li solid‐state symmetric cells assembled this SPE demonstrate stable cycling over 3000 h, while LiFePO 4 retain 93.6% initial capacity after 500 cycles at rate 1C. This work presents feasible design strategy developing highly functional materials.

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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SnF2‐Catalyzed Lithiophilic–Lithiophobic Gradient Interface for High‐Rate PEO‐based All‐Solid‐State Batteries

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(44)

Опубликована: Авг. 2, 2024

Abstract Polyethylene oxide (PEO)‐based all‐solid‐state lithium metal batteries (ASSLMBs) are strongly hindered by the fast dendrite growth at Li metal/electrolyte interface, especially under large rates. The above issue stems from suboptimal interfacial chemistry and poor + transport kinetics during cycling. Herein, a SnF 2 ‐catalyzed lithiophilic‐lithiophobic gradient solid electrolyte interphase (SCG‐SEI) of x Sn y /LiF‐Li O is in situ formed. superior ionic LiF‐Li rich upper layer (17.1 nm) possesses high energy diffusion channels, wherein lithiophilic alloy (8.4 could highly reduce nucleation overpotential with lower barrier promote rapid electron transportation for reversible plating/stripping. Simultaneously, insoluble ‐coordinated PEO promotes ion bulk phase. As result, an over 46.7 3.5 times improvements lifespan critical current density symmetrical cells achieved, respectively. Furthermore, LiFePO 4 ‐based ASSLMBs deliver recorded cycling performance 5 C (over 1000 cycles capacity retention 80.0 %). More importantly, impressive electrochemical performances safety tests LiNi 0.8 Mn 0.1 Co pouch cell , even extreme conditions (i.e., 100 °C), also demonstrated, reconfirmed importance design high‐rate applications.

Язык: Английский

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Robust polymer electrolytes with fast ion-transport nanochannels constructed by carbon dots for long lifespan Li metal batteries

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 157379 - 157379

Опубликована: Ноя. 1, 2024

Язык: Английский

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Design of Ultrathin Asymmetric Composite Electrolytes for Interfacial Stable Solid-State Lithium-Metal Batteries

ACS Nano, Год журнала: 2024, Номер 18(27), С. 17890 - 17900

Опубликована: Июнь 25, 2024

Ultrathin composite electrolytes hold great promise for high energy density solid-state lithium metal batteries (SSLMBs). However, finding an electrolyte that can simultaneously balance the interfacial stability of anode and high-voltage cathode is challenging. The present study utilized both-side tape casting technique to fabricate ultrathin asymmetric reinforced with polyimide (PI) fiber membrane, a thickness 26.8 μm. implementation this structural design enables SSLMBs attain favorable characteristics, such as exceptional resistance dendrite puncture compatibility voltages. suppression growth extension cycle life symmetric by 4000 h are both experimental theoretically demonstrated under dual confinement PI membrane Li7La3Zr2O12 ceramic fibers. Furthermore, integration multicomponent solid interphase interface layers into enhance theirs cycling stability. With gravimetric/volumetric 333.1 Wh kg-1/713.2 L-1, assembled LiNi0.8Co0.1Mn0.1O2 pouch cell demonstrates safety. extensive application concept resolution electrode/electrolyte issues.

Язык: Английский

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“Peapod-like” Fiber Network: A Universal Strategy for Composite Solid Electrolytes to Inhibit Lithium Dendrite Growth in Solid-State Lithium Metal Batteries

Nano Letters, Год журнала: 2024, Номер 24(29), С. 9050 - 9057

Опубликована: Июль 15, 2024

Solid-state lithium metal batteries (SSLMBs) are a promising energy storage technology, but challenges persist including electrolyte thickness and (Li) dendrite puncture. A novel three-dimensional "peapod-like" composite solid (CSEs) with low (26.8 μm), high mechanical strength, inhibition was designed. Incorporating Li

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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