Microstructures of layered Ni-rich cathodes for lithium-ion batteries

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(9), P. 4707 - 4740

Published: Jan. 1, 2024

The microstructural degradation, stabilization, and characterization of layered Ni-rich cathodes for Li-ion batteries are comprehensively reviewed in this paper.

Language: Английский

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Solvation‐Tailored PVDF‐Based Solid‐State Electrolyte for High‐Voltage Lithium Metal Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(18)

Published: March 12, 2024

Abstract Poly(vinylidene fluoride) (PVDF)‐based polymer electro‐lytes are attracting increasing attention for high‐voltage solid‐state lithium metal batteries because of their high room temperature ionic conductivity, adequate mechanical strength and good thermal stability. However, the presence highly reactive residual solvents, such as N, N‐dimethylformamide (DMF), severely jeopardizes long‐term cycling Herein, we propose a solvation‐tailoring strategy to confine solvent molecules by introducing low‐cost 3 Å zeolite molecular sieves fillers. The strong interaction between DMF sieve weakens ability participate in solvation Li + , leading more anions being involved solvation. Benefiting from tailored anion‐rich coordination environment, interfacial side reactions with anode NCM811 cathode effectively suppressed. As result, Li||Li symmetrical cells demonstrates ultra‐stable over 5100 h at 0.1 mA cm −2 Li||NCM811 full achieve excellent stability than 1130 250 cycles under charging cut‐off voltages 4.3 V 4.5 V, respectively. Our work is an innovative exploration address negative effects PVDF‐based electrolytes highlights importance modulating structures electrolytes.

Language: Английский

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Side Reactions/Changes in Lithium‐Ion Batteries: Mechanisms and Strategies for Creating Safer and Better Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(29)

Published: May 2, 2024

Lithium-ion batteries (LIBs), in which lithium ions function as charge carriers, are considered the most competitive energy storage devices due to their high and power density. However, battery materials, especially with capacity undergo side reactions changes that result decay safety issues. A deep understanding of cause battery's internal components mechanisms those is needed build safer better batteries. This review focuses on processes failures, voltage temperature underlying factors. Voltage-induced failures from anode interfacial reactions, current collector corrosion, cathode overcharge, over-discharge, while temperature-induced failure include SEI decomposition, separator damage, between electrodes electrolytes. The also presents protective strategies for controlling these reactions. As a result, reader offered comprehensive overview features various LIB components.

Language: Английский

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Electrolytes in Lithium-Ion Batteries: Advancements in the Era of Twenties (2020's)

Materials Chemistry and Physics, Journal Year: 2023, Volume and Issue: 313, P. 128796 - 128796

Published: Dec. 8, 2023

Language: Английский

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Recent Advances in Low‐Temperature Liquid Electrolyte for Supercapacitors

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

Published: March 7, 2024

Abstract As one of the key components supercapacitors, electrolyte is intensively investigated to promote fast development energy supply system under extremely cold conditions. However, high freezing point and sluggish ion transport kinetics for routine electrolytes hinder application supercapacitors at low temperatures. Resultantly, liquid should be oriented reduce point, accompanied by other superior characteristics, such as large ionic conductivity, viscosity outstanding chemical stability. In this review, intrinsically physical parameters microscopic structure low‐temperature are discussed thoroughly, then previously reported strategies that used address associated issues summarized subsequently from aspects aqueous non‐aqueous (organic electrolyte). addition, some advanced spectroscopy techniques theoretical simulation better decouple solvation reveal link between briefly presented. Finally, further improvement direction put forward provide a reference guidance follow‐up research.

Language: Английский

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Magnesium fluoride-engineered UiO-66 artificial protection layers for dendrite-free lithium metal batteries

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(13), P. 4622 - 4633

Published: Jan. 1, 2024

The MgF 2 and F-terminated groups effectively infiltrated the ion transport channels within UiO-66, thereby regulating desolvation process facilitating rapid Li + kinetics.

Language: Английский

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Design Strategies for Anti‐Freeze Electrolytes in Aqueous Energy Storage Devices at Low Temperatures

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: May 10, 2024

Abstract With the continuous development of electrochemical energy storage technology, especially in current pursuit environmental sustainability and safety, aqueous devices, due to their high friendliness, cost‐effectiveness, are becoming an important direction field storage. Diverse application scenarios require that systems be capable power supply under low temperature conditions. However, conventional electrolytes freeze at extremely temperatures, causing limited ion transport slow reaction kinetics, degrading performance system. The design low‐temperature anti‐freeze has become effective way address this issue. In review, deep connection between hydrogen bonds (HBs) interactions liquid‐to‐solid conversion process, fundamental principles mechanism is first explored. Subsequently, a systematic categorization discussion strategies for conducted. Finally, potential directions proposed. This review aims provide comprehensive scientific guidance technical reference with excellent performance, thereby promoting innovation devices environments.

Language: Английский

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Facilitating prelithiation of silicon carbon anode by localized high‐concentration electrolyte for high‐rate and long‐cycle lithium storage

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

Published: Feb. 1, 2024

Abstract The commercialization of silicon‐based anodes is affected by their low initial Coulombic efficiency (ICE) and capacity decay, which are attributed to the formation an unstable solid electrolyte interface (SEI) layer. Herein, a feasible cost‐effective prelithiation method under localized high‐concentration system (LHCE) for silicon–silica/graphite (Si–SiO 2 /C@G) anode designed stabilizing SEI layer enhancing ICE. thin SiO /C layers with –NH groups covered on nano‐Si surfaces demonstrated be beneficial process density functional theory calculations electrochemical performance. formed LHCE proven rich in ionic conductivity, inorganic substances, flexible organic products. Thus, faster Li + transportation across further enhances effect rate performance Si–SiO /C@G anodes. also leads uniform decomposition high stability abundant components. As result, prepared shows reversible specific 937.5 mAh g −1 after 400 cycles at current 1 C. NCM 811‖Li‐SSG‐LHCE full cell achieves high‐capacity retention 126.15 C over 750 84.82% ICE, indicating great value this strategy Si‐based large‐scale applications.

Language: Английский

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An Ultra-stable Sodium Dual-ion Battery Based on S/Se Co-doped Covalent Organic Framework Anode with 12,000 Cycles Under Lean Electrolyte

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104052 - 104052

Published: Jan. 1, 2025

Language: Английский

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Recent advances in fast-charging lithium-ion batteries: Mechanism, materials, and future opportunities

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159927 - 159927

Published: Jan. 1, 2025

Language: Английский

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