A review of direct recycling methods for spent lithium-ion batteries

Energy storage materials, Год журнала: 2024, Номер 70, С. 103475 - 103475

Опубликована: Май 17, 2024

Язык: Английский

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Formation of 2D Amorphous Lithium Sulfide Enabled by Mo₂C Clusters Loaded Carbon Scaffold for High‐Performance Lithium Sulfur Batteries

Advanced Materials, Год журнала: 2024, Номер 36(28)

Опубликована: Апрель 26, 2024

Abstract Lithium‐sulfur (Li‐S) batteries, operated through the interconversion between sulfur and solid‐state lithium sulfide, are regarded as next‐generation energy storage systems. However, sluggish kinetics of sulfide deposition/dissolution, caused by its insoluble insulated nature, hampers practical use Li‐S batteries. Herein, leaf‐like carbon scaffold (LCS) with modification Mo 2 C clusters (Mo C@LCS) is reported host material powder. During cycles, dissociative ions at C@LCS/electrolyte interface detected to exhibit competitive binding Li for anions, which disrupts deposition behavior crystalline trends a shift in configuration toward an amorphous structure. Combining related electrochemical study first‐principle calculation, it revealed that formation sulfides shows significantly improved decomposition. As result, obtained C@LCS/S cathode ultralow capacity decay rate 0.015% per cycle high mass loading 9.5 mg cm −2 after 700 cycles. More strikingly, ultrahigh 61.2 can also be achieved. This work defines efficacious strategy advance commercialization C@LCS

Язык: Английский

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Chemomechanics Engineering Promotes the Catalytic Activity of Spinel Oxides for Sulfur Redox Reaction

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Май 13, 2024

Abstract Cooperative catalysis is a promising approach to enhance the sluggish redox kinetics of lithium polysulfides (LiPSs) for practical lithium–sulfur (Li–S) batteries. However, elusory synergistic effect among multiple active sites makes it challenging accurately customize electronic structure catalysts. Herein, strategy precisely tailoring e g orbitals spinel oxides through chemomechanics engineering porposed regulate LiPSs retention and catalysis. By manipulating regulable cations in Mn x Co 3‐ O 4 , theoretically experimentally revealed that lattice strain induced by Jahn–Teller high‐spin 3+ at octahedral (Oh) can increase occupancy low‐spin Oh which effectively regulates chemical affinity toward establishes an unblocked channel intrinsic charge transfer. This leads volcano‐type correlation between sulfur activity. Benefitting from cooperative dual‐active sites, MnCo 2 with average 0.45 affords most appropriate adsorption strength rapid LiPSs, leading remarkable rate performance capacity assembled Li–S work demonstrates promise optimizing achieve efficient

Язык: Английский

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Atom-Dominated Relay Catalysis of High-Entropy MXene Promotes Cascade Polysulfide Conversion for Lithium-Sulfur Batteries

Energy & Environmental Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

The high-entropy TiVNbMoC 3 MXene, with its atom-dominated relay catalysis effect and resilient lattice configuration, promotes a cascade of sulfur conversions guides uniform Li + deposition, enabling shuttle-free dendrite-free Li–S batteries.

Язык: Английский

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Advanced preparation and application of transition metal selenides in lithium–sulfur batteries: a review

Journal of Materials Chemistry A, Год журнала: 2022, Номер 10(44), С. 23433 - 23466

Опубликована: Янв. 1, 2022

In this review, we systematically summarize the working mechanism in cycle process of batteries, preparation ways, research progress and future developments transition metal selenides Li–S cells.

Язык: Английский

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