In Situ Orthogonal Polymerization for Constructing Fast-Charging and Long-Lifespan Li Metal Batteries with Topological Copolymer Electrolytes

ACS Energy Letters, Год журнала: 2024, Номер 9(3), С. 843 - 852

Опубликована: Фев. 7, 2024

Fast-charging Li metal batteries (LMBs) with low cost, high safety, and long lifespan are highly desirable for next-generation energy storage technologies yet have been rarely achieved. Here, we report the in situ fabrication of well-designed blend, block, bottle-brush solid-state polymer electrolytes (SPEs) integrating poly(poly(ethylene glycol) methyl ether methacrylate) (PPEGMA) poly(trimethylene carbonate) (PTMC) matrices via Li-catalyzed orthogonal polymerization. Among them, topological SPEs may display quasi-molecular-scale miscibility between PPEGMA PTMC, maximize synergistic coordination Li+ carbonate units at PPEGMA/PTMC interface, simultaneously exhibit ideal mass transport properties a broad electrochemical stability window. Further incorporating trifluoroethyl methacrylate (TFEMA) into SPE allows facile construction robust solid electrolyte interphase (SEI). These, together fast charge transfer kinetics inherited from polymerization technique, enable development first example polymeric LMB capable operating steadily 3C (73% capacity retention after 1000 cycles).

Язык: Английский

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

Carbon Energy, Год журнала: 2024, Номер 6(9)

Опубликована: Апрель 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

Язык: 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, Год журнала: 2024, Номер 34(33)

Опубликована: Март 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.

Язык: Английский

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

ACS Energy Letters, Год журнала: 2025, Номер unknown, С. 750 - 778

Опубликована: Янв. 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.

Язык: Английский

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Principles and trends in extreme fast charging lithium-ion batteries

EES batteries., Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

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

Язык: 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, Год журнала: 2025, Номер unknown

Опубликована: Фев. 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.

Язык: Английский

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

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 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.

Язык: Английский

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

Energy storage materials, Год журнала: 2023, Номер 60, С. 102809 - 102809

Опубликована: Май 7, 2023

Язык: Английский

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

Battery energy, Год журнала: 2023, Номер 2(5)

Опубликована: Авг. 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.

Язык: Английский

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Recent advances in rocking chair batteries and beyond

Energy storage materials, Год журнала: 2023, Номер 60, С. 102820 - 102820

Опубликована: Май 20, 2023

Язык: Английский

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