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

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: March 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

Language: Английский

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

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: March 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.

Language: Английский

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Building electrode skins for ultra-stable potassium metal batteries

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: April 21, 2023

Abstract In nature, the human body is a perfect self-organizing and self-repairing system, with skin protecting internal organs tissues from external damages. this work, inspired by skin, we design metal electrode (MES) to protect interface. MES can increase flatness of uniform electric field distribution, inhibiting growth dendrites. detail, an artificial film made fluorinated graphene oxide serves as first protection layer. At molecular level, fluorine released in-situ formed robust SEI second “skin” for anode. As result, Cu@MES | K asymmetric cell able achieve unprecedented cycle life (over 1600 cycles). More impressively, full K@MES Prussian blue exhibits long lifespan over 5000 cycles. This work illustrates mechanism provides strategy applying bionics in batteries.

Language: Английский

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Periodically Alternating Electric Field Layers Induces the Preferential Growth of Zn (002) Plane for Ultralow Overpotential Zinc‐Ion Batteries

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(21)

Published: April 23, 2023

Abstract The sluggish de‐solvation kinetics and uneven Zn 2+ transport behavior at the anode are undesirable for commercialization of zinc ion batteries. To address these issues, a periodically alternating electric field is introduced on by constructing laponite nano‐clay layer with unique separation properties. This exhibits negative positive fields together in same space but different directions (negative normal direction while radial direction); thus, achieving both homogeneous an effective effect. film (LAP@Zn) as multifunctional artificial can induce nucleation preferential orientation growth along (002) planes, thereby suppressing dendrite anode. Consequently, LAP@Zn symmetric cells exhibit ultralow overpotential (12 mV) cycle smoothly over 1100 h 0.5 mA cm −2 . Even ultrahigh current density 40 , cell still operates stably 500 h. More encouragingly, effectiveness also convincing MnO 2 ‐based full excellent rate performance stability. strategy provides path toward high‐performance dendrite‐free Zn‐based storage systems.

Language: Английский

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Gel polymer electrolytes for rechargeable batteries toward wide-temperature applications

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(10), P. 5291 - 5337

Published: Jan. 1, 2024

Design principles, engineering strategies, challenges, and opportunities of gel polymer electrolytes for rechargeable batteries toward wide-temperature applications are thoroughly reviewed.

Language: Английский

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From Liquid to Solid-State Lithium Metal Batteries: Fundamental Issues and Recent Developments

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 16(1)

Published: Nov. 20, 2023

The widespread adoption of lithium-ion batteries has been driven by the proliferation portable electronic devices and electric vehicles, which have increasingly stringent energy density requirements. Lithium metal (LMBs), with their ultralow reduction potential high theoretical capacity, are widely regarded as most promising technical pathway for achieving batteries. In this review, we provide a comprehensive overview fundamental issues related to reactivity migrated interfaces in LMBs. Furthermore, propose improved strategies involving interface engineering, 3D current collector design, electrolyte optimization, separator modification, application alloyed anodes, external field regulation address these challenges. utilization solid-state electrolytes can significantly enhance safety LMBs represents only viable approach advancing them. This review also encompasses variation design transition from liquid solid electrolytes. Particularly noteworthy is that introduction SSEs will exacerbate differences electrochemical mechanical properties at interface, leading increased inhomogeneity-a critical factor contributing failure all-solid-state lithium Based on recent research works, perspective highlights status developing high-performance

Language: Английский

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Construction of a High-Performance Composite Solid Electrolyte Through In-Situ Polymerization within a Self-Supported Porous Garnet Framework

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

Published: Jan. 12, 2024

Composite solid electrolytes (CSEs) have emerged as promising candidates for safe and high-energy-density solid-state lithium metal batteries (SSLMBs). However, concurrently achieving exceptional ionic conductivity interface compatibility between the electrolyte electrode presents a significant challenge in development of high-performance CSEs SSLMBs. To overcome these challenges, we present method involving in-situ polymerization monomer within self-supported porous Li

Language: Английский

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Regulated Hydrated Eutectic Electrolyte Enhancing Interfacial Chemical Stability for Highly Reversible Aqueous Aluminum‐Ion Battery with a Wide Temperature Range of −20 to 60 °C

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(22)

Published: March 13, 2024

Abstract The development of aqueous aluminum‐ion batteries (AAIBs) is impeded by pronounced side reactions and hydrogen evolution reaction (HER). Here, an eutectic electrolyte named HEE30 (with optimal molar ratio 1:8:1:30 for Al(OTf) 3 , glycerol (Gly), sodium beta‐glycerophosphate pentahydrate (SG), H 2 O) to significantly enhance the reversibility AAIBs across a wide temperature range from −20 60 °C designed. combination molecular dynamics simulations operando synchrotron Fourier‐transform infrared spectroscopy reveals that unique network enhances bonding between Gly O, reduces solvation interaction Al 3+ with active thereby lowering freezing point, extending electrochemical windows suppressing HER. X‐ray photoelectron (XPS) diffraction (XRD) tests demonstrate capable forming solid interface layer consisting organic inorganic components, which effectively inhibits corrosion. Additionally, XRD ex situ XPS are employed investigate changes in lattice peak width position Prussian white cathode, as well reversible storage mechanism during cycling This quantitative design offer immediate advantages rational low‐cost safe energy batteries, specifically tailored wide‐temperature operation durable cycling.

Language: Английский

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Advancements and Challenges in Organic–Inorganic Composite Solid Electrolytes for All-Solid-State Lithium Batteries

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Sept. 20, 2024

To address the limitations of contemporary lithium-ion batteries, particularly their low energy density and safety concerns, all-solid-state lithium batteries equipped with solid-state electrolytes have been identified as an up-and-coming alternative. Among various SEs, organic-inorganic composite solid (OICSEs) that combine advantages both polymer inorganic materials demonstrate promising potential for large-scale applications. However, OICSEs still face many challenges in practical applications, such ionic conductivity poor interfacial stability, which severely limit This review provides a comprehensive overview recent research advancements OICSEs. Specifically, influence fillers on main functional parameters OICSEs, including conductivity, Li

Language: Английский

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Electropolymerized Bipolar Poly(2,3‐diaminophenazine) Cathode for High‐Performance Aqueous Al‐Ion Batteries with An Extended Temperature Range of −20 to 45 °C

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: March 1, 2024

Abstract Achieving reversible insertion/extraction in most cathodes for aqueous aluminum ion batteries (AAIBs) is a significant challenge due to the high charge density of Al 3+ and strong electrostatic interactions. Organic materials facilitate hosting multivalent carriers rapid ions diffusion through rearrangement chemical bonds. Here, bipolar conjugated poly(2,3‐diaminophenazine) (PDAP) on carbon substrates prepared via straightforward electropolymerization method introduced as cathode AAIBs. The integration n‐type p‐type active units endow PDAP with an increased number sites interaction. long‐range skeleton enhances electron delocalization collaborates ensure conductivity. Moreover, intermolecular interactions including π–π interaction hydrogen bonding significantly enhance its stability. Consequently, Al//PDAP battery exhibits large capacity 338 mAh g −1 long lifespan high‐rate capability. It consistently demonstrates exceptional electrochemical performances even under extreme conditions capacities 155 348 at −20 45 °C, respectively. In/ex situ spectroscopy comprehensively elucidates cation/anion (Al /H 3 O + ClO 4 − ) storage 3‐electron transfer dual electroactive centers (C═N –NH–). This study presents promising strategy constructing high‐performance organic AAIBs over wide temperature range.

Language: Английский

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