Safety assessment of Mn-based lithium-ion battery: thermal stability and vent gas explosion characteristics

Carbon Neutrality, Journal Year: 2025, Volume and Issue: 4(1)

Published: Feb. 11, 2025

Abstract Driven by the goals of carbon neutrality, electrochemical storage technologies play a vital role in supporting integration renewable energy and reducing dependency on fossil fuels. The Mn-based rechargeable battery (MnRB) is gaining significant attention industry due to its high voltage platform density, making it potential alternative e-bike system area. safety performance MnRB crucial for widespread application. However, there has been scarcity studies evaluating MnRB. In this study, thermal behavior commercial composite cathode from perspectives "heat generation-gas emission- explosion risks". Its was compared with that existing batteries using Li(Ni x Co y Mn z )O 2 LiFePO 4 (LFP) as materials. results indicate exhibits higher triggering temperature, 0.8% lower than 0.5 0.2 0.3 (NCM523) approximately 12.7% LFP. MnRB's normalized gas emission during runway (TR) 1.3% NCM523, primary components being CO, H , CO . limit 2.7% NCM523 44.0% intermediate stability combustion-explosion characteristics between This study provides valuable data TR behavior, offering comprehensive assessment intrinsic through quantitative evaluation. findings present clear directions designing, optimizing, implementing measures against TR.

Language: Английский

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Innovative Zinc Anodes: Advancing Metallurgy Methods to Battery Applications

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

Published: Oct. 20, 2024

Abstract Aqueous zinc metal batteries (AZMBs) are emerging as a powerful contender in the realm of large‐scale intermittent energy storage systems, presenting compelling alternative to existing ion battery technologies. They harness benefits zinc's high safety, natural abundance, and favorable electrochemical potential (−0.762 V vs Standard hydrogen electrode, SHE), alongside an impressive theoretical capacity (820 mAh g −1 5655 cm −3 ). However, performance ZMBs is impeded by several challenges, including poor compatibility with high‐loading cathodes persistent side reactions. These issues intricately linked inherent physicochemical properties anodes (ZMAs). Here, this review delves into traditional methods ZMAs production, encompassing extraction, electrodeposition, rolling processes. The discussion then progresses exploration cutting‐edge methodologies designed enhance ZMAs. categorized alloying, pre‐treatment substrate, advanced electrodeposition techniques, development composite utilizing powder. offers comparative analysis merits drawbacks various optimization strategies, highlighting beneficial outcomes achieved. It aspires inspire novel concepts for advancement innovation next‐generation zinc‐based solutions.

Language: Английский

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From Ab Initio to Instrumentation: A Field Guide to Characterizing Multivalent Liquid Electrolytes

Chemical Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

In this field guide, we outline empirical and theory-based approaches to characterize the fundamental properties of liquid multivalent-ion battery electrolytes, including (i) structure chemistry, (ii) transport, (iii) electrochemical properties. When detailed molecular-scale understanding multivalent electrolyte behavior is insufficient use examples from well-studied lithium-ion electrolytes. recognition that coupling techniques highly effective, but often nontrivial, also highlight recent characterization efforts uncover a more comprehensive nuanced underlying structures, processes, reactions drive performance system-level behavior. We hope insights these discussions will guide design future studies, accelerate development next-generation batteries through modeling with experiments, help avoid pitfalls ensure reproducibility results.

Language: Английский

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Strategically Modulating Proton Activity and Electric Double Layer Adsorption for Innovative All‐Vanadium Aqueous Mn²⁺/Proton Hybrid Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(41)

Published: Aug. 17, 2024

Abstract Aqueous Mn‐ion batteries (MIBs) exhibit a promising development potential due to their cost‐effectiveness, high safety, and for energy density. However, the of MIBs is hindered by lack electrode materials capable storing Mn 2+ ions acidic manganese salt electrolytes large ion radius. Herein, tunnel‐type structure monoclinic VO 2 nanorods effectively store via reversible (de)insertion chemistry first time reported. Utilizing exhaustive in situ/ex situ multi‐scale characterization techniques theoretical calculations, co‐insertion process /proton revealed, elucidating capacity decay mechanism wherein proton activity leads irreversible dissolution loss vanadium species. Further, Grotthuss transfer protons broken hydrogen bond reconstruction strategy while achieving modulation electric double‐layer structure, which suppresses interface activity. Consequently, demonstrates excellent electrochemical performance at both ambient temperatures −20 °C, especially maintaining 162 mAh g −1 5 A after record‐breaking 20 000 cycles. Notably, all‐vanadium symmetric pouch cells are successfully assembled based on “rocking‐chair” hybrid mechanism, demonstrating practical application potential.

Language: Английский

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π-Electron-Assisted Charge Storage in Fused-Ring Aromatic Carbonyl Electrodes for Aqueous Manganese-Ion Batteries

ACS Energy Letters, Journal Year: 2024, Volume and Issue: unknown, P. 5627 - 5634

Published: Oct. 29, 2024

Language: Английский

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Monoclinic Silver Vanadate (Ag_0.33V₂O₅) as a High‐Capacity Stable Cathode Material for Aqueous Manganese Batteries

Advanced Science, Journal Year: 2024, Volume and Issue: 11(39)

Published: Aug. 13, 2024

Abstract Aqueous rechargeable metal batteries have recently garnered considerable attention owing to their low cost, sufficient capacity, and the use of non‐flammable water‐based electrolytes. Among them, manganese are particularly favored because stability, abundance, affordability, high energy density. Despite advantages, Mn storage host structures remain underexplored. Therefore, developing innovative materials is crucial for advancing this field. In paper, study reports first time, Ag 0.33 V 2 O 5 as a cathode material in aqueous batteries. The explains displacement/intercalation behavior silver using electrochemical, structural, spectroscopic analyses. Additionally, it shown that cation (Ag + , 2+ H ) diffusion pathways can be simulated diffusion‐barrier calculations. Finally, demonstrates high‐performance exhibit remarkable reversible capacity ≈261.9 mAh g −1 at current 0.1 A an excellent cycle retention 69.1% after 2000 cycles density 1.5 A/g. findings contribute advancement battery technology, offering promising pathway safer, more cost‐effective, systems.

Language: Английский

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A High‐Capacity Manganese‐Metal Battery with Dual‐Storage Mechanism

Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

Abstract As a promising post lithium‐ion‐battery candidate, manganese metal battery (MMB) is receiving growing research interests because of its high volumetric capacity, low cost, safety and energy‐to‐price ratio. However, the energy density, mainly constrained by scarce choices unsatisfying capacity cathodes, strictly bottlenecks development MMBs. In this work, new class cathodes based on novel dual‐storage mechanism (DSM) are reported. Working principles DSM revealed deeply understood via ex situ X‐ray diffraction photoelectron spectroscopy. Besides, proof‐of‐concept DSM‐based Cu 1.8 S cathode, which shows highest specific 220 mAh g −1 97.1 % higher density than previously reported in storing Mn 2+ ions, presented. The key determinants design strategies for next‐generation theoretical calculations. This work provides high‐capacity cathode materials MMBs, expected to draw inspirations further enhance

Language: Английский

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A High‐Capacity Manganese‐Metal Battery with Dual‐Storage Mechanism

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

As a promising post lithium-ion-battery candidate, manganese metal battery (MMB) is receiving growing research interests because of its high volumetric capacity, low cost, safety and energy-to-price ratio. However, the energy density, mainly constrained by scarce choices unsatisfying capacity cathodes, strictly bottlenecks development MMBs. In this work, new class cathodes based on novel dual-storage mechanism (DSM) are reported. Working principles DSM revealed deeply understood via ex situ X-ray diffraction photoelectron spectroscopy. Besides, proof-of-concept DSM-based Cu1.8S cathode, which shows highest specific 220 mAh g-1 97.1 % higher density than previously reported in storing Mn2+ ions, presented. The key determinants design strategies for next-generation theoretical calculations. This work provides high-capacity cathode materials MMBs, expected to draw inspirations further enhance

Language: Английский

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Nonaqueous Electrolyte Rechargeable Manganese Batteries with Potassium Manganese Hexacyanoferrate Cathodes

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

Published: March 28, 2025

Abstract Manganese batteries garnered significant attention as sustainable and cost‐effective alternatives to lithium‐ion batteries. For the first time, manganese are demonstrated using a hexacyanoferrate cathode organic electrolyte solution, specifically saturated Mn(ClO₄)₂ in acetonitrile. The exhibits an average operating voltage of 1.7 V discharge capacity 73.4 mAh g −1 at 0.1 A , retaining 71.1% after 1500 cycles 0.2 . Diffusion pathways barriers reveal efficient 3D Mn 2 ⁺ ion diffusion within framework, with low migration barrier 0.514 eV. Despite promising performance, surface analysis metal anode reveals formation complex organic/inorganic SEI (solid interphase) layers, including MnO x MnCl compounds, due decomposition. These findings highlight critical importance layer control optimization for enhancing durability efficiency electrolyte‐based established viable next‐generation energy storage solution provide foundation further advancements battery systems.

Language: Английский

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Environmentally Benign and Long Cycling Mn-Ion Full Batteries Enabled by Hydrated Eutectic Electrolytes and Polycarbonyl Conjugated Organic Anodes

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

Published: April 14, 2025

Aqueous rechargeable manganese (Mn)-ion batteries have recently emerged as a promising candidate for multivalent ion batteries. However, challenges remain, particularly in expanding the electrolyte's voltage window and identifying compatible anode materials. Herein, we introduce Mn-ion full battery comprising nickel hexacyanoferrate (NiHCF) cathode, perylene-3,4,9,10-tetracarboxylic diimide (PTCDI) anode, novel hydrated eutectic electrolyte formulated from Mn(ClO4)2·6H2O acetamide. This composition, optimized molar ratio, provides stable solvation structure that suppresses water reactivity supports high ionic conductivity, confirmed by spectroscopic molecular dynamics analyses. The PTCDI facilitates highly reversible Mn2+ storage via unique enolization redox reaction, delivering exceptional rate capability cycling stability. As result, NiHCF||PTCDI achieves 1.2 V plateau, excellent performance (up to 5.0 A g-1), long life with 95.6% capacity retention over 1200 cycles at 1.0 g-1. study proposes feasible strategy construction of environment-friendly, long-life low-cost aqueous batteries, offering sustainable high-performance solution future energy applications.

Language: Английский

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