A review of electrospun separators for lithium‐based batteries: Progress and application prospects

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(9)

Published: April 17, 2024

Abstract Due to the limitations of raw materials and processes involved, polyolefin separators used in commercial lithium‐ion batteries (LIBs) have gradually failed meet increasing requirements high‐end terms energy density, power safety. Hence, it is very important develop next‐generation for advanced lithium (Li)‐based rechargeable including LIBs Li–S batteries. Nonwoven nanofiber membranes fabricated via electrospinning technology are highly attractive candidates due their simple processes, low‐cost equipment, controllable microporous structure, wide material applicability, availability multiple functions. In this review, technologies reviewed devices, process environment, polymer solution systems. Furthermore, strategies toward improvement electrospun presented compositions structure nanofibers separators. Finally, challenges prospects both academia industry proposed. We anticipate that these systematic discussions can provide information applications offer new perspectives design functional Li‐based

Language: Английский

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Efficient Lithium Transport and Reversible Lithium Plating in Silicon Anodes: Synergistic Design of Porous Structure and LiF‐Rich SEI for Fast Charging

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(33)

Published: March 5, 2024

Abstract Silicon (Si) anodes hold great promise for enhancing the energy density of lithium‐ion batteries (LIBs). However, issues such as slow intrinsic kinetics and unstable interfaces caused by significant volume changes hinder practical deployment Si anodes. Fast charging is desired Si‐related that worsen Li plating dead Li, making it essential to overcome these safe, reversible charging. Herein, a novel approach proposed combining structural design solid electrolyte interface (SEI) modulation enable efficient safe fast LIBs. 3D porous micro‐particles consisting nanosheets coated with pitch‐based carbon layer are successfully prepared. This provides enhanced ion transport pathways while maintaining material's rate performance tap density. Furthermore, designed localized high‐concentration (LHCE) exhibits lower + desolvation barrier leads formation LiF‐rich SEI, mitigating “tip effect” during charging, stability, demonstrating high Coulombic efficiency. Overall, this study highlights synergistic importance structure SEI regulation in LIB aiding developing superior, storage.

Language: Английский

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Anchored Weakly‐Solvated Electrolytes for High‐Voltage and Low‐Temperature Lithium‐ion Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(36)

Published: June 14, 2024

Electrolytes endowed with high oxidation/reduction interfacial stability, fast Li-ion desolvation process and decent ionic conductivity over wide temperature region are known critical for low fast-charging performance of energy-dense batteries, yet these characteristics rarely satisfied simultaneously. Here, we report anchored weakly-solvated electrolytes (AWSEs), that designed by extending the chain length polyoxymethylene ether electrolyte solvent, can achieve above merits at moderate salt concentrations. The -O-CH

Language: Английский

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Electrolyte Design Enables Rechargeable LiFePO4/Graphite Batteries from −80°C to 80°C

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: July 15, 2024

Abstract Lithium iron phosphate (LFP)/graphite batteries have long dominated the energy storage battery market and are anticipated to become dominant technology in global power market. However, poor fast‐charging capability low‐temperature performance of LFP/graphite seriously hinder their further spread. These limitations strongly associated with interfacial lithium (Li)‐ion transport. Here we report a wide‐temperature‐range ester‐based electrolyte that exhibits high ionic conductivity, fast kinetics excellent film‐forming ability by regulating anion chemistry Li salt. The barrier is quantitatively unraveled employing three‐electrode system distribution relaxation time technique. superior role proposed preventing 0 plating sustaining homogeneous stable interphases also systematically investigated. cells exhibit rechargeability an ultrawide temperature range −80 °C 80 outstanding without compromising lifespan. Specially, practical pouch achieve 80.2 % capacity retention after 1200 cycles (2 C) 10‐min charge 89 (5 at 25 provide reliable even °C.

Language: Английский

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Prussian Blue and Its Analogues for Commercializing Fast-Charging Sodium/Potassium-Ion Batteries

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 750 - 778

Published: Jan. 13, 2025

Fast-charging technology, which reduces charging time and enhances convenience, is attracting attention. Sodium-ion batteries (SIBs) potassium-ion (PIBs) are emerging as viable alternatives to lithium-ion (LIBs) due their abundant resources low cost. However, during fast discharging, the crystal structures of cathode materials in SIBs/PIBs can be damaged, negatively impacting performance, lifespan, capacity. To address this, there a need explore electrode with ultrahigh rate capabilities. Prussian Blue its analogues (PB PBAs) have shown great potential for both SIBs PIBs unique excellent electrochemical properties. This Review examines use PBAs PIBs, focusing on fast-charging (rate) performance commercialization potential. Through systematic analysis discussion, we hope provide practical guidance developing contributing advancement widespread adoption green energy technologies.

Language: Английский

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Principles and trends in extreme fast charging lithium-ion batteries

EES batteries., Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This perspective summarizes principles and trends in extreme fast charging lithium-ion batteries, a key enabler of the mass adoption electric vehicles.

Language: Английский

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Multi-dimensional, Multi-scale Analysis of Interphase Chemistry for Enhanced Fast-Charging of Lithium-Ion Batteries with Ion Mass Spectrometry

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Understanding the fundamental properties of electrode–electrolyte interphases (EEIs) is essential for designing electrolytes that support stable operation under high charging rates. In this study, we benchmark our fast-charging electrolyte (FCE) against commercial LP57 to identify EEI characteristics enhance performance. By utilizing latest advances in time-of-flight secondary ion mass spectrometry (TOF-SIMS) and focused-ion beam (FIB) techniques, reveal complex chemical architecture cathode–electrolyte interphase (CEI). Our findings indicate battery conditions requires reduced surface reactivity rather than stabilizing bulk integrity cathode. While inorganic species are often cited as beneficial composition, their distribution within equally critical. Additionally, dynamic interactions between cathode material conductive carbon significantly affect CEI formation alter passivation layer chemistry. A chemically homogeneous components passivating preferentially active particles desired enhanced Notably, amount decomposition solid-electrolyte (SEI) far outweighs SEI determining better electrochemical An inorganic-rich effectively protects graphite particles, suppresses accumulation metallic lithium, prevents lithium dendrites. Overall, an performance can be achieved by tuning chemistry on both anode sides.

Language: Английский

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Superior High‐Rate Ni‐Rich Lithium Batteries Based on Fast Ion‐Desolvation and Stable Solid‐Electrolyte Interphase

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

The fast charging-discharging performance of power batteries has very practical significance. In terms electrochemistry, this requires and stable kinetics for electrochemical reaction processes. Despite the great complexity kinetics, it is clear that lithium-ion desolvation a subsequent step crossing through cathode-electrolyte interphase (CEI) are crucial to high-rate performance, in which two key steps depend heavily on working electrolyte formula. work, customized developed coordinate ion formation by introducing vinylene carbonate (VC), triphenylboroxin (TPBX), fluoroethylene (FEC) but excluding ethylene (EC). Serving Ni-rich cathodes, generates double-layered CEI, LiF-dominated inorganics inner layer, ROCOOLi-dominated organics outer not only efficient lithium transport. Meanwhile, PF6-${\mathrm{PF}}_6^ - $ -dominated solvation structure induced effectively decreases energy 29.72 kJ mol-1, supporting transport cathode interfacial Consequently, battery achieves long cycle at superior high rate 10 C.

Language: Английский

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New perspectives on spatial dynamics of lithiation and lithium plating in graphite/silicon composite anodes

Energy storage materials, Journal Year: 2023, Volume and Issue: 60, P. 102809 - 102809

Published: May 7, 2023

Language: Английский

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Fast‐charging of lithium‐ion batteries: A review of electrolyte design aspects

Battery energy, Journal Year: 2023, Volume and Issue: 2(5)

Published: Aug. 9, 2023

Abstract Lithium‐ion batteries (LIBs) with fast‐charging capabilities have the potential to overcome “range anxiety” issue and drive wider adoption of electric vehicles. The U.S. Advanced Battery Consortium has set a goal fast charging, which requires charging 80% battery's state charge within 15 min. However, polarization effects under conditions can lead electrode structure degradation, electrolyte side reactions, lithium plating, temperature rise, are highly linked thermodynamic kinetic properties electrolytes. conventional nonaqueous electrolytes used in LIBs consist carbonate cannot support without compromising performance lifespan. This review outlines challenges requirements suitable for fast‐charging. Additionally, recent developments from four key perspectives: additives, low‐viscosity co‐solvents, high concentration or localized high‐concentration electrolytes, advanced summarized. Furthermore, this provides insights design based on mechanism process offers an overview current future direction field.

Language: Английский

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