Ionic Conduction in Polymer‐Based Solid Electrolytes

Advanced Science, Journal Year: 2023, Volume and Issue: 10(10)

Published: Jan. 25, 2023

Good safety, high interfacial compatibility, low cost, and facile processability make polymer-based solid electrolytes promising materials for next-generation batteries. Key issues related to electrolytes, such as synthesis methods, ionic conductivity, battery architecture, are investigated in past decades. However, mechanistic understanding of the conduction is still lacking, which impedes design optimization electrolytes. In this review, mechanisms strategies including solvent-free polymer composite quasi-solid/gel summarized evaluated. Challenges enhancing conductivity elaborated, while ion-pair dissociation, ion mobility, relaxation, interactions at polymer/filler interfaces highlighted. This comprehensive review especially pertinent targeted enhancement Li-ion

Language: Английский

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Emerging Halide Superionic Conductors for All-Solid-State Batteries: Design, Synthesis, and Practical Applications

ACS Energy Letters, Journal Year: 2022, Volume and Issue: 7(5), P. 1776 - 1805

Published: April 26, 2022

Recently, halide superionic conductors have emerged as promising solid electrolyte (SE) materials for all-solid-state batteries (ASSBs), owing to their inherent properties combining high Li+ conductivity, good chemical and electrochemical oxidation stabilities, mechanical deformability, compared sulfide or oxide SEs. In this Review, recent advances in Li+- Na+-conducting SEs are comprehensively summarized. After introducing the ionic diffusion mechanism related governing factors of crystal structures, we discuss design strategies, such substitution synthesis protocols, further improving properties. We review theoretical experimental results on stabilities compatibilities with electrode materials. Moreover, offer a critical assessment challenges issues associated development practical ASSB applications, cost considerations, atmospheric air, aqueous solutions, slurry-processing, wet-slurry dry fabrication sheet-type electrodes (or SE membranes) large-format ASSBs. Based these discussions, provide perspective future research directions SEs, emphasizing need expanding space.

Language: Английский

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Challenges of polymer electrolyte with wide electrochemical window for high energy solid‐state lithium batteries

InfoMat, Journal Year: 2023, Volume and Issue: 5(3)

Published: Jan. 16, 2023

Abstract With the rapid development of energy storage technology, solid‐state lithium batteries with high density, power and safety are considered as ideal choice for next generation devices. Solid electrolytes have attracted considerable attention key components batteries. Compared inorganic solid electrolytes, polymer better flexibility, machinability, more importantly, contact electrode, low interfacial impedance. However, its ionic conductivity, narrow electrochemical stability window (ESW), poor mechanical properties at room temperature limit practical applications. In recent years, many studies focused on improving conductivity electrolytes; however, few systematic reviews been conducted their ESWs. A electrolyte wide will aid battery operation a voltage, which can effectively improve density. Moreover, toward metal anode is also important. Therefore, this review summarizes progress ESW, discusses factors affecting ESW analyzes strategy to broaden from perspective molecular interaction, structural design, tuning. The trends windows presented. image

Language: Английский

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Strategies for rational design of polymer-based solid electrolytes for advanced lithium energy storage applications

Energy storage materials, Journal Year: 2022, Volume and Issue: 52, P. 430 - 464

Published: Aug. 15, 2022

Language: Английский

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PDOL-Based Solid Electrolyte Toward Practical Application: Opportunities and Challenges

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Feb. 21, 2024

Polymer solid-state lithium batteries (SSLB) are regarded as a promising energy storage technology to meet growing demand due their high density and safety. Ion conductivity, interface stability battery assembly process still the main challenges hurdle commercialization of SSLB. As component SSLB, poly(1,3-dioxolane) (PDOL)-based solid polymer electrolytes polymerized in-situ becoming candidate electrolyte, for ion conductivity at room temperature, good electrochemical performances, simple process. This review analyzes opportunities PDOL toward practical application The focuses include exploring polymerization mechanism DOL, performance composite electrolytes, PDOL. Furthermore, we provide perspective on future research directions that need be emphasized PDOL-based in exploration these schemes facilitates comprehensive profound understanding electrolyte provides new ideas boost them batteries.

Language: Английский

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In situ-polymerized lithium salt as a polymer electrolyte for high-safety lithium metal batteries

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(6), P. 2591 - 2602

Published: Jan. 1, 2023

Our strategy of polymerizing lithium salt as a polymer electrolyte (3D-SIPE-LiFPA) simultaneously enhances the cycle life and safety characteristics ultrahigh-energy-density metal batteries (437 W h kg −1 ).

Language: Английский

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Molecular Self-Assembled Ether-Based Polyrotaxane Solid Electrolyte for Lithium Metal Batteries

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(3), P. 1548 - 1556

Published: Jan. 13, 2023

Poly(ethylene oxide) has been widely investigated as a potential separator for solid-state lithium metal batteries. However, its applications were significantly restricted by low ionic conductivity and narrow electrochemical stability window (<4.0 V vs Li/Li+) at room temperature. Herein, novel molecular self-assembled ether-based polyrotaxane electrolyte was designed using different functional units prepared threading cyclic 18-crown ether-6 (18C6) to linear poly(ethylene glycol) (PEG) via intermolecular hydrogen bond terminating with hexamethylene diisocyanate trimer (HDIt), which strongly confirmed local structure-sensitive solid/liquid-state nuclear magnetic resonance (NMR) techniques. The shown an obviously increased room-temperature of 3.48 × 10-4 S cm-1 compared 1.12 10-5 without assembling units, contributing the enhanced cycling batteries both LiFePO4 LiNi0.8Co0.15Al0.05O2 cathode materials. This advanced strategy provides new paradigm in designing solid polymer electrolytes demanded performance

Language: Английский

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Toward Practical Solid‐State Polymer Lithium Batteries by In Situ Polymerization Process: A Review

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(30)

Published: June 25, 2023

Abstract Although there are various strategies for solid‐state polymer lithium batteries (SSPLBs) manufacturing, the most promising is in situ polymerization process. The process inherits good liquid electrolyte/electrode interfacial contact and compatible with existing lithium‐ion manufacturing processes, making it easy to achieve scale‐up production. However, of current studies on based lab‐level coin cells, while practical pouch cells much less studied. There a huge difference between SSPLBs SSPLBs. Here, as complement reports reviews, systematic review challenges design principles fabricating provided enable comprehensive understanding strategic guidance applications. This thoroughly discusses recent advances regarding fabrication using presents future outlook by processes. Furthermore, critical issues electrode materials highlighted during process, an attempt made call more attention performance

Language: Английский

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Achieving high-energy and high-safety lithium metal batteries with high-voltage-stable solid electrolytes

Matter, Journal Year: 2023, Volume and Issue: 6(4), P. 1096 - 1124

Published: March 17, 2023

Language: Английский

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In Situ Cross‐Linked Plastic Crystal Electrolytes for Wide‐Temperature and High‐Energy‐Density Lithium Metal Batteries

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(28)

Published: April 13, 2022

Abstract The development of high‐energy‐density lithium metal batteries has been significantly hampered mainly due to the poor electrolyte–electrode compatibility, narrow operating temperature range, and stringent safety concerns conventional electrolytes. Here, an in situ cross‐linked plastic crystal‐based electrolyte (CPCE) with optimized composition design is proposed. Based on interaction succinonitrile (SN) ethoxylated trimethylolpropane triacrylate (ETPTA) polar carbonyl groups, CPCE delivers well‐tuned energy levels a concentrated coordination structure, leading improved electrochemical window stable electrode–electrolyte interface. In addition, crystallization SN molecules also inhibited, ensuring suitable ion migration bulky over wide range. Moreover, both nonleakage ETPTA nonflammability crystal (PCE) further reinforce CPCE. As result, well‐designed achieves high conductivity (≈5.4 V vs Li + /Li) broad range (−20 100 °C). It dendrite‐free plating Coulombic efficiency up ≈99.1%. Cu|CPCE|LiNi 0.8 Co 0.1 Mn O 2 anode‐free pouch cell exhibits density (≈1520 Wh L ‐1 ) during abuse tests. This study paves new pathway realize practical application battery storage systems.

Language: Английский

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