The Critical Role of Fillers in Composite Polymer Electrolytes for Lithium Battery

Nano-Micro Letters, Год журнала: 2023, Номер 15(1)

Опубликована: Март 28, 2023

With excellent energy densities and highly safe performance, solid-state lithium batteries (SSLBs) have been hailed as promising storage devices. Solid-state electrolyte is the core component of SSLBs plays an essential role in safety electrochemical performance cells. Composite polymer electrolytes (CPEs) are considered one most candidates among all due to their comprehensive performance. In this review, we briefly introduce components CPEs, such matrix species fillers, well integration fillers polymers. particular, focus on two major obstacles that affect development CPEs: low ionic conductivity high interfacial impedance. We provide insight into factors influencing conductivity, terms macroscopic microscopic aspects, including aggregated structure polymer, ion migration rate carrier concentration. addition, also discuss electrode-electrolyte interface summarize methods for improving interface. It expected review will feasible solutions modifying CPEs through further understanding conduction mechanism compatibility

Язык: Английский

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Novel PEO-based composite electrolyte for low-temperature all-solid-state lithium metal batteries enabled by interfacial cation-assistance

Energy storage materials, Год журнала: 2023, Номер 56, С. 121 - 131

Опубликована: Янв. 2, 2023

Язык: Английский

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Li‐Ion Transfer Mechanism of Ambient‐Temperature Solid Polymer Electrolyte toward Lithium Metal Battery

Advanced Energy Materials, Год журнала: 2023, Номер 13(16)

Опубликована: Март 9, 2023

Abstract The low ionic conductivity and short service life of solid polymer electrolytes (SPEs) limit the application ambient‐temperature lithium metal batteries, which is perhaps a result inherent restricted segment movement at room temperature. Herein, an dual‐layer electrolyte developed related working mechanisms are innovatively investigated. In strategy, poly(propylene carbonate) (PPC)/succinonitrile (SN) contacts with cathode while polyethylene oxide (PEO)/Li 7 La 3 Zr 2 O 12 adopted near anode. Molecular dynamics simulations demonstrate formation solvated sheath‐like structure [SN···Li + ], demonstrates strong interaction polymers (PPC···[SN···Li ]/PEO···[SN···Li ]). Further density functional theory calculations show that these structures, allow rapid transport Li ions through segments. These results confirmed Fourier transform infrared spectroscopy nuclear magnetic resonance. Therefore, Li‐ion mechanism for SPEs can be reasonably revealed. Remarkably, binding energy between PPC SN stronger than PEO, helps avoid parasitic reaction Li. A overpotential 55 mV exhibited Li/Li symmetrical cells after 1000 h. Notably, capacity retention 86.3% maintained LiNi 0.6 Co 0.2 Mn /Li cell 25 °C, implying good potential in high voltage batteries.

Язык: Английский

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Hybrid Crosslinked Solid Polymer Electrolyte via In‐Situ Solidification Enables High‐Performance Solid‐State Lithium Metal Batteries

Advanced Materials, Год журнала: 2023, Номер 35(47)

Опубликована: Авг. 4, 2023

Solid-state lithium-metal batteries constructed by in-situ solidification of cyclic ether are considered to be a critical strategy for the next generation solid-state with high energy density and safety. However, poor thermal/electrochemical stability linear polyethers severe interfacial reactions limit its further development. Herein, ring-opening hybrid crosslinked polymerization is proposed organic/inorganic polymer electrolyte (HCPE) superior ionic conductivity 2.22 × 10-3 S cm-1 at 30 °C, ultrahigh Li+ transference number 0.88, wide electrochemical window 5.2 V. These allow highly stable lithium stripping/plating cycling over 1000 h 1 mA cm-2 , which also reveal well-defined stabilization mechanism. Thus, HCPE endows assembled excellent long-cycle performance 600 cycles 2 C (25 °C) capacity retention 92.1%. More importantly, noncombustible opens up new frontier promote practical application safety via solidification.

Язык: Английский

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Rational Design of High-Performance PEO/Ceramic Composite Solid Electrolytes for Lithium Metal Batteries

Nano-Micro Letters, Год журнала: 2023, Номер 15(1)

Опубликована: Март 31, 2023

Composite solid electrolytes (CSEs) with poly(ethylene oxide) (PEO) have become fairly prevalent for fabricating high-performance solid-state lithium metal batteries due to their high Li+ solvating capability, flexible processability and low cost. However, unsatisfactory room-temperature ionic conductivity, weak interfacial compatibility uncontrollable Li dendrite growth seriously hinder progress. Enormous efforts been devoted combining PEO ceramics either as fillers or major matrix the rational design of two-phase architecture, spatial distribution content, which is anticipated hold key increasing conductivity resolving within CSEs between CSEs/electrodes. Unfortunately, a comprehensive review exclusively discussing design, preparation application PEO/ceramic-based largely lacking, in spite tremendous reviews dealing broad spectrum polymers ceramics. Consequently, this targets recent advances CSEs, starting brief introduction, followed by conduction mechanism, methods, then an emphasis on compatibility. Afterward, applications transition oxides sulfur cathodes are summarized. Finally, summary outlook existing challenges future research directions proposed.

Язык: Английский

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Hybrid electrolytes for solid-state lithium batteries: Challenges, progress, and prospects

Energy storage materials, Год журнала: 2023, Номер 61, С. 102876 - 102876

Опубликована: Июль 1, 2023

Язык: Английский

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Strategies toward the development of high-energy-density lithium batteries

Journal of Energy Storage, Год журнала: 2024, Номер 88, С. 111666 - 111666

Опубликована: Апрель 16, 2024

Язык: Английский

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Building better solid‐state batteries with silicon‐based anodes

Interdisciplinary materials, Год журнала: 2023, Номер 2(4), С. 635 - 663

Опубликована: Июль 1, 2023

Abstract Silicon (Si)‐based solid‐state batteries (Si‐SSBs) are attracting tremendous attention because of their high energy density and unprecedented safety, making them become promising candidates for next‐generation storage systems. Nevertheless, the commercialization Si‐SSBs is significantly impeded by enormous challenges including large volume variation, severe interfacial problems, elusive fundamental mechanisms, unsatisfied electrochemical performance. Besides, some unknown processes in Si‐based anode, electrolytes (SSEs), anode/SSE interfaces still needed to be explored, while an in‐depth understanding solid–solid chemistry insufficient Si‐SSBs. This review aims summarize current scientific technological advances insights into tackling promote deployment First, differences between various conventional liquid electrolyte‐dominated lithium‐ion (LIBs) with discussed. Subsequently, mechanical contact model, chemical reaction properties, charge transfer kinetics (mechanical–chemical kinetics) anode three different SSEs (inorganic (oxides) SSEs, organic–inorganic composite inorganic (sulfides) SSEs) systemically reviewed, respectively. Moreover, progress SSE‐based on aspects electrode constitution, three‐dimensional structured electrodes, external stack pressure highlighted, Finally, future research directions prospects development proposed.

Язык: Английский

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Polymers for flexible energy storage devices

Progress in Polymer Science, Год журнала: 2023, Номер 143, С. 101714 - 101714

Опубликована: Июнь 25, 2023

Язык: Английский

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Disordered materials for high-performance lithium-ion batteries: A review

Nano Energy, Год журнала: 2024, Номер 121, С. 109250 - 109250

Опубликована: Янв. 3, 2024

Disordered materials (DMs) have become promising in the advancement of lithium-ion batteries (LIBs). Their disordered, open structure is conductive to facilitate efficiency storage. DMs with tunable compositions also possess abundant defects that can interact Li+, further enhancing their electrochemical performances LIBs. Yet, revealing structural origin superior properties DM-based LIBs remains a challenge. In this article, we review recent advances development components for LIBs, such as anodes, cathodes, coating layers, and solid-state electrolytes. We describe primary preparation characterization methods utilized DMs, while describing mechanisms involved DM synthesis. This article addresses correlation between performances. Moreover, elucidate challenges future perspectives summarize key advantages LIB performance over crystalline counterparts, providing insights developing through tailored development.

Язык: Английский

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