“Mobius strip-like” FeSn alloy: A novel highly-distorted 3D hierarchical porous anode for ultrafast and stable Li storage

Liu, Huanyan; Zhang, Jizhou; Xiang, Peng; Zhang, Shichao; Shi, Sanqiang; Liu, Wenbo

doi:10.1016/j.ensm.2024.103234

Energy Storage Materials

2024

DOI: 10.1016/j.ensm.2024.103234

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“Mobius strip-like” FeSn alloy: A novel highly-distorted 3D hierarchical porous anode for ultrafast and stable Li storage

Huanyan Liu,

Jizhou Zhang,

Peng Xiang

et al.

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2024

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Cited by 3 publications

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In Situ Encapsulation of SnS₂/MoS₂ Heterojunctions by Amphiphilic Graphene for High‐Energy and Ultrastable Lithium‐Ion Anodes

Yu,

Cui,

Han

et al. 2024

Advanced Science

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Lithium‐ion batteries with transition metal sulfides (TMSs) anodes promise a high capacity, abundant resources, and environmental friendliness, yet they suffer from fast degradation and low Coulombic efficiency. Here, a heterostructured bimetallic TMS anode is fabricated by in situ encapsulating SnS2/MoS2 nanoparticles within an amphiphilic hollow double‐graphene sheet (DGS). The hierarchically porous DGS consists of inner hydrophilic graphene and outer hydrophobic graphene, which can accelerate electron/ion migration and strongly hold the integrity of alloy microparticles during expansion and/or shrinkage. Moreover, catalytic Mo converted from lithiated MoS2 can promote the reaction kinetics and suppress heterointerface passivation by forming a building‐in‐electric field, thereby enhancing the reversible conversion of Sn to SnS2. Consequently, the SnS2/MoS2/DGS anode with high gravimetric and high volumetric capacities achieves 200 cycles with a high initial Coulombic efficiency of >90%, as well as excellent low‐temperature performance. When the commercial Li(Ni0.8Co0.1Mn0.1)O2 (NCM811) cathode is paired with the prelithiated SnS2/MoS2/DGS anode, the full cells deliver high gravimetric and volumetric energy densities of 577 Wh kg−1 and 853 Wh L−1, respectively. This work highlights the significance of integrating spatial confinement and atomic heterointerface engineering to solve the shortcomings of conversion‐/alloying typed TMS‐based anodes to construct outstanding high‐energy LIBs.

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In Situ Encapsulation of SnS₂/MoS₂ Heterojunctions by Amphiphilic Graphene for High‐Energy and Ultrastable Lithium‐Ion Anodes

Yu,

Cui,

Han

et al. 2024

Advanced Science

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Designing 3D SnS@Cu‐Ni Nanoporous Column Array Electrode for High‐Capacity and High‐Rate Lithium‐Ion Batteries

Wang,

Liu,

Pan

et al. 2024

Small Methods

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Sn‐based materials with high capacity showcase great potential for next‐generation lithium‐ion batteries (LIBs). Yet, the large volume change and limited ion/electron transfer efficiency of Sn‐based materials upon operation significantly compromises the battery performance. In this study, a unique 3D copper‐nickel nanoporous column array current collector is rationally developed via a facile template‐free galvanostatic electrodeposition method, followed by electrodepositing SnS active material onto it (denoted as 3D SnS@CNCA). Excitingly, the morphology of the 3D SnS@CNCA electrode perfectly inherited the nanoporous column array structure of the 3D current collector, which not only endows the electrode with a large specific surface area to provide more active sites and sufficient ion/electron transport pathways, but also effectively alleviates the volume expansion of SnS upon repeated charge–discharge cycles. Therefore, the binder‐free 3D SnS@CNCA electrode showcases a significantly enhanced Li storage performance, showing a high initial reversible capacity of 1019.7 mAh g−1 with noteworthy cycling stability (a capacity retention rate of 89.4% after 200 cycles). Moreover, the designed electrode also manifests high rate performance with a high capacity of 570.6 mAh g−1 at 4 A g−1. This work provides a novel design idea for the preparation of high‐performance electrodes beyond LIBs.

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Nanoporous Ni current collectors with cone array supported Sn–Co alloys as anodes for high-performance lithium-ion batteries

Kang,

Liu,

Gou

et al. 2024

J. Mater. Chem. A

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“Mobius strip-like” FeSn alloy: A novel highly-distorted 3D hierarchical porous anode for ultrafast and stable Li storage

Cited by 3 publications

References 73 publications

In Situ Encapsulation of SnS₂/MoS₂ Heterojunctions by Amphiphilic Graphene for High‐Energy and Ultrastable Lithium‐Ion Anodes

In Situ Encapsulation of SnS₂/MoS₂ Heterojunctions by Amphiphilic Graphene for High‐Energy and Ultrastable Lithium‐Ion Anodes

Designing 3D SnS@Cu‐Ni Nanoporous Column Array Electrode for High‐Capacity and High‐Rate Lithium‐Ion Batteries

Nanoporous Ni current collectors with cone array supported Sn–Co alloys as anodes for high-performance lithium-ion batteries

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“Mobius strip-like” FeSn alloy: A novel highly-distorted 3D hierarchical porous anode for ultrafast and stable Li storage

Cited by 3 publications

References 73 publications

In Situ Encapsulation of SnS2/MoS2 Heterojunctions by Amphiphilic Graphene for High‐Energy and Ultrastable Lithium‐Ion Anodes

In Situ Encapsulation of SnS2/MoS2 Heterojunctions by Amphiphilic Graphene for High‐Energy and Ultrastable Lithium‐Ion Anodes

Designing 3D SnS@Cu‐Ni Nanoporous Column Array Electrode for High‐Capacity and High‐Rate Lithium‐Ion Batteries

Nanoporous Ni current collectors with cone array supported Sn–Co alloys as anodes for high-performance lithium-ion batteries

Contact Info

Product

Resources

About

In Situ Encapsulation of SnS₂/MoS₂ Heterojunctions by Amphiphilic Graphene for High‐Energy and Ultrastable Lithium‐Ion Anodes

In Situ Encapsulation of SnS₂/MoS₂ Heterojunctions by Amphiphilic Graphene for High‐Energy and Ultrastable Lithium‐Ion Anodes