Review on the Binders for Sustainable High‐Energy‐Density Lithium Ion Batteries: Status, Solutions, and Prospects

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(45)

Published: July 5, 2023

Abstract The upsurging demand for electric vehicles and the rapid consumption of lithium‐ion batteries (LIBs) calls LIBs to possess high energy density resource sustainability. former requires usage electroactive materials with capacity maximum amount within fixed electrode volume. latter essentially creates a closed‐loop circulation scenario materials. In all aspects, binders are practical significance in bonding materials, maintaining integrity detaching slurry from current collector. Currently, key role enhancing electrochemical behavior sustainable high‐capacity has been recognized. Meanwhile, that designed easy cost‐effective recycling gradually reported. Herein, recently developed hold promises establishing high‐energy‐density summarized. binder facilitating separation first highlighted. Subsequently, special attention is paid conductive binders, contributing less battery chemistries higher electrode. Additionally, progress emerging also reviewed. It believed advances will open up opportunities economy.

Language: Английский

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Weakly Solvating Few-Layer-Carbon Interface toward High Initial Coulombic Efficiency and Cyclability Hard Carbon Anodes

ACS Nano, Journal Year: 2024, Volume and Issue: 18(2), P. 1733 - 1743

Published: Jan. 4, 2024

The carbonaceous anodes in sodium ion batteries suffer from low initial Coulombic efficiency (ICE) and poor cyclability due to rampant solid electrolyte interface (SEI) growth. concept of the weakly solvating (WSE) has been popularized for SEI regulation on anode by adjusting cation solvation structure. Nevertheless, effects sheath electrode/electrolyte are ignored most WSE applications. In this work, we extend bulk electrolyte/carbon interface. By recycling asphalt wastes into sp2 C enriched few-layer carbon hard carbon, a is fabricated with lower adsorption energy solvent molecules than pristine (−0.89 vs −1.08 eV Na/diglyme). Accordingly, more anionic groups attracted solvent-weakened during sodiation (2.30 1.96 coordination number PF6–). anion-mediated contact pairs facilitate thin, inorganic-rich layer homogeneous distribution, which confers high ICE 97.9% capacity 335.6 mA h g–1 at 1 (89.5% retention, 1000 cycles). full battery also manifests an density 209 W kg–1. This interfacial design applicable both ether- ester-based electrolytes, promising cost-effective modification electrodes.

Language: Английский

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Regulation of pseudographitic carbon domain to boost sodium energy storage

Nano Research, Journal Year: 2024, Volume and Issue: 17(6), P. 5188 - 5196

Published: Feb. 1, 2024

Language: Английский

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Research progresses on metal‐organic frameworks for sodium/potassium‐ion batteries

Battery energy, Journal Year: 2024, Volume and Issue: 3(4)

Published: March 2, 2024

Abstract Metal‐organic frameworks (MOFs), as a new type of functional material, have received much attention in recent years. High ionic conductivity, large specific surface area, controllable pore structure and geometry make it possible to be used electrode materials. Meanwhile, different types MOF derivatives can prepared by adjusting the metal central element, which provides options for finding materials high‐performance batteries. This paper reviews research progress pristine MOFs sodium/potassium‐ion In addition, this describes working principle, advantages, challenges batteries, strategies improve electrochemical performance, well future prospects directions.

Language: Английский

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Efficient Synergism of Chemisorption and Wackenroder Reaction via Heterostructured La₂O₃‐Ti₃C₂T_x ‐Embedded Carbon Nanofiber for High‐Energy Lithium‐Sulfur Pouch Cells

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(36)

Published: May 14, 2023

Abstract Lithium‐sulfur (Li‐S) batteries have been regarded as promising next‐generation energy storage systems due to their high density and low cost, but practical application is hindered by inferior long‐cycle stability caused the severe shuttle effect of lithium polysulfides (LiPSs) sluggish reaction kinetics. This study reports a La 2 O 3 ‐MXene heterostructure embedded in carbon nanofiber (CNF) (denoted ‐MXene@CNF) sulfur (S) host address above issues. The unique features this endow with synergistic catalysis during charging discharging processes. strong adsorption ability provided domain can capture sufficient LiPSs for subsequent catalytic conversion, insoluble thiosulfate intermediate produced hydroxyl terminal groups on surface MXene greatly promotes rapid conversion Li S via “Wackenroder reaction.” Therefore, cathode ‐MXene@CNF (La ‐MXene@CNF/S) exhibits excellent cycling capacity fading rate 0.031% over 1000 cycles 857.9 mAh g −1 under extremely loadings. Furthermore, 5 Ah‐level pouch cell successfully assembled stable cycling, which delivers specific 341.6 Wh kg electrolyte/sulfur ratio (E/S ratio).

Language: Английский

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Synergetic Sn Incorporation‐Zn Substitution in Copper‐Based Sulfides Enabling Superior Na‐Ion Storage

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(2)

Published: Oct. 15, 2023

Transition-metal sulfides have been regarded as perspective anode candidates for high-energy Na-ion batteries. Their application, however, is precluded severely by either low charge storage or huge volumetric change along with sluggish reaction kinetics. Herein, an effective synergetic Sn incorporation-Zn substitution strategy proposed based on copper-based sulfides. First, capability of copper sulfide significantly improved via incorporating alloy-based element. However, this process accompanied sacrifice structural stability due to the high uptake. Subsequently, maintain capacity, and concurrently improve cycling rate capabilities, a Zn (taking partial sites) carried out, which could promote diffusion/reaction kinetics relieve mechanical strain-stress within crystal framework. The incorporation endow specific capacity (≈560 mAh g

Language: Английский

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Spatially expanded built-in electric field via engineering graded junction enables fast charge transfer in bulk MnO@Mn3O4 for Na+ supercapacitors

Nano Energy, Journal Year: 2023, Volume and Issue: 115, P. 108725 - 108725

Published: July 18, 2023

Language: Английский

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Progress of metal phosphides as the anode materials for sodium ion batteries

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 997, P. 174924 - 174924

Published: May 22, 2024

Language: Английский

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Manipulating Interfacial Renovation via In Situ Formed Metal Fluoride Heterogeneous Protective Layer toward Exceptional Durable Sodium Metal Anodes

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

Published: Aug. 5, 2024

Abstract Sodium metal is regarded as an optimal anode material for high‐energy‐density sodium‐ion batteries (SIBs). However, during the processes of sodium deposition and stripping, failure solid electrolyte interphase (SEI) film leads to continuous accumulation inactive sodium, thereby compromising cycling reversibility battery. Here, a novel fluoride heterointerface layer generated constructed through in situ manipulation reaction between TiF 4 Na. The reconstructed NaF/TiF 3 interface layer, which tightly anchors metal, effectively suppresses formation dendrites charge‐discharge process. highly sodium‐philic component exhibits strong binding with Na ions, while NaF reduces + diffusion energy barrier, significantly enhancing kinetics. Due successful artificial construction this Na/TiF composite electrode demonstrates exceptional ultra‐long stability 2370 h symmetric cells (0.5 mAh cm −2 ). Density functional theory (DFT) calculations further validate functionality each protective layer. When paired NaNi 1/3 Fe Mn O 2 cathode pouch cell, it up 2000 cycles at current densities C C, maximum density output 483.1 Wh kg −1 (power density: 320.8 W

Language: Английский

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A Small‐Molecule Organic Cathode with Extended Conjugation toward Enhancing Na⁺ Migration Kinetics for Advanced Sodium‐Ion Batteries

Small, Journal Year: 2024, Volume and Issue: 20(34)

Published: April 15, 2024

Abstract Organic cathode materials show excellent prospects for sodium‐ion batteries (SIBs) owing to their high theoretical capacity. However, the solubility and low electrical conductivity of organic compounds result in inferior cycle stability rate performance. Herein, an extended conjugated small molecule is reported that combines electroactive quinone with piperazine by structural designability materials, 2,3,7,8‐tetraamino‐5,10‐dihydrophenazine‐1,4,6,9‐tetraone (TDT). Through intermolecular condensation reaction, many redox‐active groups C═O structures are introduced without sacrificing specific capacity, which ensures capacity electrode enhances The abundant NH 2 can form hydrogen bonds enhance interactions, resulting lower higher stability. TDT delivers a initial 293 mAh g −1 at 500 mA maintains 90 extremely current density 70 A . || Na‐intercalated hard carbon (Na‐HC) full cells provide average 210 during 100 cycles deliver 120 8

Language: Английский

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