The significance of mitigating crosstalk in lithium-ion batteries: a review

Energy & Environmental Science, Год журнала: 2023, Номер 16(5), С. 1943 - 1963

Опубликована: Янв. 1, 2023

Crosstalk phenomenon between the cathode and anode, that is, diffusion of parasitic products across separator to counter electrode, is receiving intensive attention because its significant effect on high-energy battery life safety.

Язык: Английский

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Thermoresponsive Electrolytes for Safe Lithium‐Metal Batteries

Advanced Materials, Год журнала: 2023, Номер 35(12)

Опубликована: Янв. 7, 2023

Exploring advanced strategies in alleviating the thermal runaway of lithium-metal batteries (LMBs) is critically essential. Herein, a novel electrolyte system with thermoresponsive characteristics designed to largely enhance safety 1.0 Ah LMBs. Specifically, vinyl carbonate (VC) azodiisobutyronitrile introduced as solvent boost stability both solid interphase (SEI) and electrolyte. First, abundant poly(VC) formed SEI electrolyte, which more thermally stable against lithium hexafluorophosphate compared inorganic components widely acquired routine This increases critical temperature for (the beginning obvious self-heating) from 71.5 137.4 °C. The remained VC solvents can be polymerized into battery abnormally increases. not only afford barrier prevent direct contact between electrodes, but also immobilize free liquid solvents, thereby reducing exothermic reactions electrodes electrolytes. Consequently, internal-short-circuit "ignition point" starting runaway) LMBs are increased 126.3 100.3 °C 176.5 203.6 work provides insights pursuing addition various commercial

Язык: Английский

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Nonflammable, localized high-concentration electrolyte towards a high-safety lithium metal battery

Energy storage materials, Год журнала: 2022, Номер 52, С. 355 - 364

Опубликована: Авг. 10, 2022

Язык: Английский

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Working Principles of Lithium Metal Anode in Pouch Cells

Advanced Energy Materials, Год журнала: 2022, Номер 12(47)

Опубликована: Окт. 10, 2022

Abstract Lithium metal battery has been considered as one of the potential candidates for next‐generation energy storage systems. However, dendrite growth issue in Li anodes results low practical density, short lifespan, and poor safety performance. The strategies suppressing are mostly conducted materials‐level coin cells, while their validity device‐level pouch cells is still under debate. It imperative to address issues realize application batteries. This review presents a comprehensive overview failure mechanism regulation cells. First, gaps between scientific findings underscored. Specific attention paid mechanistic understanding quantitative discussion on mechanisms pouch‐type Subsequently, recently proposed reviewed suppress state‐of‐the‐art electrochemical performance especially cell‐level density critically concerned. concludes with an attempt summarize engineering understandings propose some novel insights applications

Язык: Английский

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Electrochemically and Thermally Stable Inorganics–Rich Solid Electrolyte Interphase for Robust Lithium Metal Batteries

Advanced Materials, Год журнала: 2023, Номер 36(1)

Опубликована: Сен. 9, 2023

Abstract Severe dendrite growth and high‐level activity of the lithium metal anode lead to a short life span poor safety, seriously hindering practical applications batteries. With trisalt electrolyte design, an F‐/N‐containing inorganics–rich solid interphase on is constructed, which electrochemically thermally stable over long‐term cycles safety abuse conditions. As result, its Coulombic efficiency can be maintained 98.98% for 400 cycles. An 85.0% capacity retained coin‐type full cells with 3.14 mAh cm −2 LiNi 0.5 Co 0.2 Mn 0.3 O 2 cathode after 200 1.0 Ah pouch‐type 4.0 72 During thermal runaway tests cycled pouch cell, onset triggering temperatures were increased from 70.8 °C 117.4 100.6 153.1 °C, respectively, indicating greatly enhanced performance. This work gives novel insights into interface potentially paving way high‐energy‐density, long‐life‐span, safe

Язык: Английский

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Research on the impact of high-temperature aging on the thermal safety of lithium-ion batteries

Journal of Energy Chemistry, Год журнала: 2023, Номер 87, С. 378 - 389

Опубликована: Сен. 4, 2023

Язык: Английский

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Bifunctional flame retardant solid-state electrolyte toward safe Li metal batteries

Journal of Energy Chemistry, Год журнала: 2023, Номер 81, С. 613 - 622

Опубликована: Март 9, 2023

Язык: Английский

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Fundamentals of Electrolyte Design for Wide‐Temperature Lithium Metal Batteries

Advanced Energy Materials, Год журнала: 2023, Номер 13(37)

Опубликована: Авг. 3, 2023

Abstract Lithium metal‐based batteries (LMBs) have garnered significant attention due to their exceptional energy density and lightweight characteristics. However, the electrochemical performance of LMBs often falls short, particularly in extreme temperature conditions. To address these challenges, development electrolytes capable withstanding wide ranges has emerged as a highly promising strategy for enhancing operational capabilities LMB across diverse weather This comprehensive review aims explore degradation mechanisms wide‐temperature electrolytes, establishing fundamental understanding failure that impede at harsh temperatures. Essential properties required are elucidated, latest advancements electrolyte technologies tailored specifically all‐climate operations comprehensively discussed. Particular emphasis is placed on unique role solvation structure interfacial offers valuable insights proposes directions practical implementation LMBs, contributing significantly existing knowledge base while concurrently paving way developing robust rigors environments.

Язык: Английский

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Oxygen-induced thermal runaway mechanisms of Ah-level solid-state lithium metal pouch cells

eTransportation, Год журнала: 2023, Номер 18, С. 100279 - 100279

Опубликована: Сен. 1, 2023

Язык: Английский

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Suppressing dendritic metallic Li formation on graphite anode under battery fast charging

Journal of Energy Chemistry, Год журнала: 2024, Номер 91, С. 484 - 500

Опубликована: Янв. 19, 2024

Язык: Английский

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