Safer solid‐state lithium metal batteries: Mechanisms and strategies

InfoMat, Год журнала: 2023, Номер 6(2)

Опубликована: Дек. 12, 2023

Abstract Solid‐state batteries that employ solid‐state electrolytes (SSEs) to replace routine liquid are considered be one of the most promising solutions for achieving high‐safety lithium metal batteries. SSEs with high mechanical modulus, thermal stability, and non‐flammability can not only inhibit growth dendrites but also enhance safety However, several internal materials/electrodes‐related hazards demonstrated by recent works show (SSLMBs) impenetrable. Therefore, understanding potential SSLMBs is critical their more secure widespread applications. In this contribution, we provide a comprehensive overview failure mechanism from materials devices. Also, strategies improve performance included view material enhancement, battery design, external management. Consequently, future directions further provided. We hope work shed bright insights into path constructing energy storage devices density safety. image

Язык: Английский

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

Advanced Materials, Год журнала: 2024, Номер 36(29)

Опубликована: Май 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.

Язык: Английский

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High Energy Density Solid‐State Lithium Metal Batteries Enabled by In Situ Polymerized Integrated Ultrathin Solid Electrolyte/Cathode

Advanced Functional Materials, Год журнала: 2024, Номер 34(18)

Опубликована: Янв. 20, 2024

Abstract Solid‐state batteries (SSBs) are regarded as the most promising next‐generation energy storage devices due to their potential achieve higher safety performance and density. However, troubles in preparation of ultrathin solid‐state electrolytes (SEs) well resultant compromise mechanical strength greatly limit application SSBs. Herein, a novel situ polymerized integrated SE/cathode design is developed. The ceramic layer supported on cathode serves not only rigid scaffold prevent direct contact between anode but also active inorganic fillers enhance properties SE film. unique Li‐ion coordination environments Li hopping mechanism profoundly promote fast ion transport composite SEs. SEs simultaneously balance thickness (10 µm), (0.65 mS cm −1 ), superior Young's modulus (66.8 GPa), excellent interface contact. pouch cells with practical Li||LiNi 0.8 Co 0.1 Mn O 2 configuration an ultrahigh volumetric density 1018 Wh L performance. exhibits great promise for SSBs high

Язык: Английский

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The safety aspect of sodium ion batteries for practical applications

Journal of Energy Chemistry, Год журнала: 2024, Номер 95, С. 407 - 427

Опубликована: Апрель 16, 2024

Язык: Английский

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Anode‐Free Alkali Metal Batteries: From Laboratory to Practicability

Advanced Functional Materials, Год журнала: 2024, Номер 34(44)

Опубликована: Май 19, 2024

Abstract Anode‐free alkali metal batteries (AFAMBs) are regarded as the most promising candidates for next‐generation high‐energy systems owing to their high safety, energy density, and low cost. However, restricted supply at cathode, severe dendrite growth, unstable electrode‐electrolyte interface result in Coulombic efficiency severely short cycle life. The optimization strategies mainly based on laboratory‐level coin cells, but effectiveness practical‐level is rarely discussed. This review presents a comprehensive overview of recent developments challenges AFAMBs from laboratory toward practicability. First, advances, major challenges, systematically summarized. More significantly, given vast differences battery structures operating conditions, gap between particularly emphasized this review. In addition, failure mechanisms have been outlined key parameters affecting performance identified. Finally, insightful perspectives practical presented, aiming provide helpful guidance subsequent basic research promote large‐scale commercial applications AFAMBs.

Язык: Английский

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Intrinsically Safe Lithium Metal Batteries Enabled by Thermo‐electrochemical Compatible in‐situ Polymerized Solid‐state Electrolytes

Advanced Materials, Год журнала: 2024, Номер 36(35)

Опубликована: Июнь 28, 2024

In situ polymerized solid-state electrolytes have attracted much attention due to high Li-ion conductivity, conformal interface contact, and low resistance, but are plagued by lithium dendrite, degradation, inferior thermal stability, which thereby leads limited lifespan severe safety hazards for high-energy metal batteries (LMBs). Herein, an in electrolyte is proposed copolymerization of 1,3-dioxolane with 1,3,5-tri glycidyl isocyanurate (TGIC) as a cross-linking agent, realizes synergy battery compatibility Li anode. Functional TGIC enhances the polymeric level. The unique carbon-formation mechanism facilitates flame retardancy eliminates fire risk. meantime, TGIC-derived inorganic-rich interphase inhibits side reactions promotes uniform plating. Intrinsically safe LMBs nonflammability outstanding electrochemical performances under extreme temperatures (130 °C) achieved. This functional polymer design shows promising prospect development LMBs.

Язык: Английский

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Thermal runaway evolution of a 280 Ah lithium-ion battery with LiFePO4 as the cathode for different heat transfer modes constructed by mechanical abuse

Journal of Energy Chemistry, Год журнала: 2024, Номер 93, С. 32 - 45

Опубликована: Фев. 8, 2024

Язык: Английский

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Challenges and Solutions of Solid‐State Electrolyte Film for Large‐Scale Applications

Advanced Energy Materials, Год журнала: 2024, Номер 14(11)

Опубликована: Янв. 26, 2024

Abstract Solid‐state lithium‐ion batteries are widely accepted as the promising next‐generation energy storage technology due to higher density and improved safety compared conventional with liquid electrolytes. Large‐area solid‐state electrolyte (SSE) films adequate thickness control, ionic conductivity, good interfacial contact can reduce internal resistance, increase real of batteries, manufacturing costs. Optimization SSE properties at particle scale large‐scale preparation key development high‐performance their industrialization. Therefore, this paper provides a comprehensive review SSE, covering both particle‐level features like effects size, density, air stability on electrochemical performance, well four major routes for relevant strategies structural optimization films. In addition, large‐area performance applications in pouch battery systems discussed detail. Finally, design principles particles summarized direction thin SSEs is envisaged.

Язык: Английский

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Lithiophilic V₂CT_x/MoO₃ Hosts with Electronic/Ionic Dual Conductive Gradients for Ultrahigh‐Rate Lithium Metal Anodes

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 24, 2024

Abstract Lithium (Li) metal is considered as a promising anode material for high‐energy batteries; yet, its practical application hindered by uncontrolled Li dendrite growth, especially at high rate. Herein, dual conductive gradient V 2 CT x /MoO 3 (DG‐V ) host that integrates electronic/ionic gradients and lithiophilicity prepared layer‐by‐layer assembly dendrite‐free anodes. Gradient LiF deriving from different amount of endows good ionic gradient; while, MoO regarded spacer to avoid the restacking , increasing space deposition. The effectively optimize current density + flux distribution bottom, achieving fast reduction “bottom–up” deposition mode. Meanwhile, lithiophilic guide homogeneous growth. As result, symmetrical half‐cells based on DG‐V @Li anodes conduct 700 h 5 mAh cm −2 20 mA . @Li||LiFePO 4 full‐cells maintain capacity retention 85.4% after 1350 cycles C. Remarkably, @Li||LiNi 0.6 Co 0.2 Mn O can run 150 with 80.6% even harsh conditions. well‐adjusted materials structures both properties will bring inspiration novel design other batteries.

Язык: Английский

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Ultrafast Li‐Rich Transport in Composite Solid‐State Electrolytes

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 31, 2025

Solid-state lithium (Li) metal batteries (SSLMBs) have garnered considerable attention due to their potential for high energy density and intrinsic safety. However, widespread development has been hindered by the low ionic conductivity of solid-state electrolytes. In this contribution, a novel Li-rich transport mechanism is proposed achieve ultrafast Li-ion conduction in composite By incorporating cation-deficient dielectric nanofillers into polymer matrices, it found that negatively charged cation defects effectively intensify adsorption Li ions, resulting concentration enrichment on surface fillers. More importantly, these formed layers are interconnected establish continuous networks. The electrolyte exhibited remarkably ion activation (0.17 eV) achieved an unprecedented approaching 1 × 10⁻3 S cm⁻1 at room temperature. Li||LiNi0.8Co0.1Mo0.1O2 full cells demonstrated extended cycling life over 200 cycles with capacity retention 70.7%. This work provides fresh insight improving constructing networks, paving way high-performance SSLMBs.

Язык: Английский

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