Advanced Crosslinked Solid Polymer Electrolytes: Molecular Architecture, Strategies, and Future Perspectives

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

Published: Sept. 17, 2024

Abstract Solid‐state batteries (SSBs) have attracted much attention for high‐energy‐density and high‐safety energy storage devices. Solid polymer electrolytes (SPEs) emerged as a critical component in the advancement of SSBs, owing to compelling advantages strong molecular structure‐designability, low cost, easy manufacturing, no liquid leakage. However, linear SPEs usually room‐temperature ionic conductivity due crystallization, melting at high temperature. Thus, crosslinked been proposed that chemical bonding between internal molecule chains can maintain solid state expand operational temperature, disrupt regularity segment, diminish crystalline degree, leading an enhancement conductivity. Furthermore, integration functional groups within SPE network significantly augment electrochemical performance SPEs. Herein, according structure, are categorized into four types: simple network, AB polymers (ABCP), semi‐interpenetrating (semi‐IPN), interpenetrating (IPN), then structure features disadvantages commonly used these types reviewed. In addition, with self‐healing, flame‐retardant, degradable, recyclability introduced. Finally, challenges prospects summarized, hoping provide guidance design future.

Language: Английский

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Low-Cost Halide Electrolytes Li_2+xHf_1–xFe_xCl₆ with Superior Ionic Conductivities for All-Solid-State Lithium–Metal Based Batteries

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(18), P. 7012 - 7025

Published: April 24, 2024

All-solid-state batteries (ASSBs) employing inorganic solid electrolytes have been considered as promising candidates for next generation energy storage owing to their intrinsic safety performance and high density. Designing highly ionically conductive (electro)chemically stable utilizing cost-effective materials is of vital importance the development practical ASSBs. Herein, we report a series new lithium-conducting superionic halides Li2+xHf1–xFexCl6 that are free rare-earth elements with ionic conductivities up 0.91 mS cm–1 at 30 °C by aliovalent substitution low-cost earth-abundant Fe elements. By means complementary characterization techniques bond-valence site (BVSE) calculations, gain insights into influence doping engineering on local structural environment underlying lithium-ion transport properties Fe3+-substituted Li2HfCl6. Importantly, it demonstrated prevalently existent distortion octahedral structure redistribution lithium ion induced strongly benefits properties. Notably, formation infinitely 3D connected migration pathways comprised directly face-sharing octahedron along c direction revealed analysis theoretical calculations. Additionally, oxidation tolerance Li2HfCl6, fabricated bulk-type ASSBs uncoated LiCoO2 deliver an outstanding electrochemical performance.

Language: Английский

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Polyester-enhanced poly (cyclic carbonate-fluoride)-based polymer electrolyte for stable circulating solid lithium batteries

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151780 - 151780

Published: April 29, 2024

Language: Английский

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Dimensional Strategies for Bridging the Research Gap between Lab‐Scale and Potentially Practical All‐Solid‐State Batteries: The Role of Sulfide Solid Electrolyte Films

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(32)

Published: July 11, 2023

Abstract The absence of liquid components in all‐solid‐state batteries (ASSBs) based on sulfide solid electrolytes (SSEs) significantly impacts manufacturing processes and performance, particularly concerning mechanical properties evolution. SSE films play vital roles this context. This review provides a comprehensive analysis film design strategies, emphasizing their significance the cell assembly operation practical ASSBs. Essential are examined, including SSEs, binders, scaffold or substrate materials, key characteristics related to ASSB addressed, such as conduction properties, electrochemical stability, properties. Various fabricated using different binders materials explored through slurry‐casting solvent‐free methods, ASSBs employing with diverse form factors presented, ability operate under low‐pressure conditions. Additionally, importance establishing test protocols for assessing performance metrics is highlighted strategies enabling Li metal anodes introduced. By deepening understanding electrochemo‐mechanical phenomena engineering ASSBs, it anticipated that gap between lab‐scale research goals can be bridged leverage hybridization various compositions immiscible nature solid‐state materials.

Language: Английский

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Pentafluorobenzene boronic acid with strong Lewis acidity for the modification of PEO-based polymer electrolytes

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(10), P. 5768 - 5777

Published: Jan. 1, 2024

PFBBA modifies PEO-based electrolytes by endowing B atoms with stronger Lewis acidity and forming a LiF/Li–B–O rich SEI film.

Language: Английский

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PEO‐Based Solid‐State Polymer Electrolytes for Wide‐Temperature Solid‐State Lithium Metal Batteries

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

Abstract Developing solid‐state lithium metal batteries with wide operating temperature range is important in future. Polyethylene oxide (PEO)‐based electrolytes are extensively studied for merits including superior flexibility and low glass transition temperature. However, ideal usage temperatures conventional PEO‐based between 60 65 °C, unequable degrades their electrochemical performances at high (≤25 °C ≥80 °C). Herein, modification methods of PEO low, especially wide‐temperature applications reviewed based on detailed analyses mechanisms involved its different temperatures. First, shortcomings solid due to influence pointed out. Second, existing strategies summarized detail from three aspects high, temperatures, application derivatives or chain segment treatment PEO, addition fillers, other such as reasonable regulation salts, introduction functional layers metal‐organic frameworks (MOFs) covalent organic (COFs). Finally, a summary description electrolyte research development trends provided. The review aims offer some guidance the creation wider working ranges.

Language: Английский

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Perspectives on Li Dendrite Penetration in Li₇La₃Zr₂O₁₂‐Based Solid‐State Electrolytes and Batteries: Materials, Interfaces, and Charge Transfer

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(10)

Published: Dec. 11, 2023

Abstract Garnet‐type Li 7 La 3 Zr 2 O 12 (LLZO) solid‐state electrolytes have gained significant attention as one of the most promising electrolyte candidates for high‐energy‐density energy storage devices due to their superior stability and high ionic conductivity. However, problem lithium (Li) dendrite penetration into LLZO hinders practical application in metal batteries (SSLMBs). Multidisciplinary evaluations are carried out understand mechanism penetration. Herein, formation evolution different types dendrites within reviewed. The process is addressed from perspectives material design, Li/LLZO interfacial adaptability, charge transfer process. On this basis, recent efforts solutions inhibiting LLZO, including stabilizing phase densification techniques, modifications, grain boundary manipulations, summarized. It expected that in‐depth understanding corresponding will provide a systemic guideline toward development LLZO‐based commercialization ultra‐stable SSLMBs.

Language: Английский

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Designing Conductive Pyrrolidinium‐Based Dual Network Gel Electrolytes: Tailoring Performance with Dynamic and Covalent Crosslinking

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

Published: June 12, 2024

Abstract Transitioning toward a carbon‐negative direction necessitates continued development and enhancement of existing lithium battery technologies. A key impediment for these technologies is the utilization flammable organic solvent‐based electrolytes, which pose significant safety risks. Furthermore, recyclability batteries has not reached level required transitioning to circular economy. Here, poly(ionic liquid)‐based dual network gel electrolytes are reported as safer sustainable alternative materials. The materials employ both, dynamic (up 45 mol%) covalent crosslinking 10 mol%), allowing fabrication mechanically stable gels with high content 65 wt%) ionic liquid/salt both via thermal photo polymerization. nature this in interplay other components systematically investigated. Mechanical stability 0.7 MPa), combined enhanced conductivity (surpassing −4 S cm −1 at room temperature) achieved synergetic combination non‐covalent crosslinking, resulting improved electrochemical 5 V) (reaching 300 °C) by embedded liquid. Moreover presence crosslinks facilitates reprocessing 70 °C without comrpomising performance, thus reaching full reusability.

Language: Английский

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Electrode Fabrication Techniques for Li Ion Based Energy Storage System: A Review

Batteries, Journal Year: 2023, Volume and Issue: 9(3), P. 184 - 184

Published: March 20, 2023

Development of reliable energy storage technologies is the key for consistent supply based on alternate sources. Among systems, electrochemical devices are most robust. Consistent systems such as lithium ion (Li ion) has become an ultimate system utilized both domestic and industrial scales due to its advantages over other systems. Considering factors related Li ion-based system, in present review, we discuss various electrode fabrication techniques including electrodeposition, chemical vapor deposition (CVD), stereolithography, pressing, roll roll, dip coating, doctor blade, drop casting, nanorod growing, brush stamping, inkjet printing (IJP), fused modelling (FDM) direct ink writing (DIW). Additionally, analyze statistics publications these outline challenges future prospects battery market.

Language: Английский

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Multi-layered electrolytes for solid-state lithium batteries

Next Energy, Journal Year: 2023, Volume and Issue: 1(3), P. 100042 - 100042

Published: July 25, 2023

Solid-state lithium batteries are promising candidates for improving battery safety and boosting energy density. However, the application of both typical solid-state electrolytes, inorganic ceramic/glass organic polymer facing their respective inherent challenges, including large interfacial resistance unwanted reactions narrow electrochemical stability windows electrolytes. The design multi-layer such as inorganic/inorganic, inorganic/polymer polymer/polymer structures, provides a viable solution to these issues by effectively widening window, which exhibits unparallel advantages in with help non-diffusible characteristic Given extensive research progress reported, this paper reviews latest advancements electrolytes categorizes them into inorganic-based, polymer-based composite-based systems. Each is discussed separately, focusing on rationales, functional mechanisms, performances, residual challenges. In addition, meet requirements practical applications, potential strategies further development also briefly presented.

Language: Английский

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