Achieving highly stable Sn-based anode by a stiff encapsulation heterostructure

Li, Ruizhe; Lv, Zhuoran; Dong, Wujie; Huang, Fuqiang

doi:10.1007/s40843-021-1783-0

Cited by 10 publications

(6 citation statements)

References 52 publications

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“…Although Sn-based nanomaterials (i.e., nanoparticles, nanotubes, and nanowires) exhibit effective strain relaxation to volume changes and shortened pathways for Li-ion diffusion, they still suffer from inherent fragility and continuous SEI growth due to large specific surface areas [22][23][24][25][26][27][28][29][30][31]. In this regard, core-shell structure and various Sn/carbon and SnO 2 /carbon nanocomposites, wherein Sn or SnO 2 is confined in carbon nanotubes, nanofibers, and graphene layer, have been reported to accommodate the large volume changes and facilitate stable SEI formation [32][33][34][35][36][37][38][39]. However, Li-ion diffusion is blocked by outer carbon coating, nanotubes, nanofibers, and graphene, limiting the electrochemical performance [38,[40][41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, core-shell structure and various Sn/carbon and SnO 2 /carbon nanocomposites, wherein Sn or SnO 2 is confined in carbon nanotubes, nanofibers, and graphene layer, have been reported to accommodate the large volume changes and facilitate stable SEI formation [32][33][34][35][36][37][38][39]. However, Li-ion diffusion is blocked by outer carbon coating, nanotubes, nanofibers, and graphene, limiting the electrochemical performance [38,[40][41][42][43][44][45]. Thus, embedding nanostructured Sn-based electrode materials into the porous matrix is a potential strategy to enhance the Li-ion diffusion kinetics [46][47][48][49][50].…”

Section: Introductionmentioning

confidence: 99%

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Temperature-dependent synthesis of SnO2 or Sn embedded in hollow porous carbon nanofibers toward customized lithium-ion batteries

Liang

Dong

et al. 2023

Sci. China Mater.

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Lithium-ion batteries (LIBs) have been widelyused as grid-level energy storage systems to power electric vehicles, hybrid electric vehicles, and portable electronic devices. However, it is a big challenge to develop high-capacity electrode materials with large energy storage and ultrafast charging capability simultaneously due to the sluggish charge carrier transport in bulk materials and fragments of active materials. To address this issue, composite electrodes of SnO 2 nanodots and Sn nanoclusters embedded in hollow porous carbon nanofibers (denoted as SnO 2 @HPCNFs and Sn@HPCNFs) were respectively constructed programmatically for customized LIBs. Highly interconnected carbon nanofiber networks served as fast electron transport pathways. Additionally, the hierarchical hollow and porous structure facilitated rapid Li-ion diffusion and alleviated the volume expansion of Sn and SnO 2 . SnO 2 @HPCNFs delivered a remarkably high capacity of 899.3 mA h g −1 at 0.1 A g −1 due to enhanced Li adsorption and high ionic diffusivity. Meanwhile, Sn@HPCNFs displayed fast charging capability and superior high rate performance of 238.8 mA h g −1 at 5 A g −1 (~10 C) due to the synergetic effect of enhanced Li-ion storage in the bulk pores of Sn and improved electronic conductivity. The investigation of the electrochemical behaviors of SnO 2 and Sn by tailoring the carbonization temperature provides new insight into constructing high-capacity anode materials for high-performance energy storage devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temperature-dependent synthesis of SnO2 or Sn embedded in hollow porous carbon nanofibers toward customized lithium-ion batteries

Liang

Dong

et al. 2023

Sci. China Mater.

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“…The surging consuming demand of energy has accelerated the development of new energy conversion and storage technology. , Among them, lithium-ion and sodium-ion batteries (LIBs/SIBs) are particularly widely used and show great potential for improvement. Anode materials, as the key component of batteries, are crucial to improve the performance of LIBs/SIBs. − …”

Section: Introductionmentioning

confidence: 99%

Interface Engineering Enhances Pseudocapacitive Contribution to Alkali Metal Ion Batteries

Xie

Zhou

Fang

et al. 2023

ACS Appl. Energy Mater.

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Increasing the pseudocapacitive contribution has been regarded as an effective means to overcome slow diffusion-limited redox mechanism in electrode materials. Enhanced pseudocapacitive contribution by interface engineering holds huge potential in improving the electrochemical performance of composite electrodes owing to the effective manipulation of ionic transfer kinetics. In this work, the Sb2S3@TiO2 composite with a nitrogen-doped three-dimensional carbon skeleton was designed as the anode for lithium (sodium)-ion batteries (LIBs/SIBs), which delivered significantly enhanced pseudocapacitive contribution. Sb2S3 acted as the main contributor of high capacity, while the addition of amorphous TiO2 suppressed the excessive growth of Sb2S3 on the three-dimensional carbon framework and improved the stability of composite electrodes. Moreover, the edge positions of Sb2S3 and TiO2 are abundant. The combination of TiO2 and Sb2S3 eliminated the band gap of the material, greatly improved the electronic conductivity and pseudocapacitance contribution, thus accelerating the reaction kinetics, which verifies by the first-principles calculation results. Benefit from this, the featured anode exhibited ultralong cycle life and improved rate performance, with a specific capacity of 451.5 mA h g–1 for 200 cycles at 0.5 A g–1 (LIBs) and 300.5 mA h g–1 for 1600 cycles at 0.5 A g–1 (SIBs). This work provides some insights into enhanced pseudocapacitive contribution to multi-battery charge storage by manipulating the interface effect of electrode materials.

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“…Moreover, after long-term cycling, the carbon matrices usually encounter structure deformation in common electrolytes, resulting in unstable structures and severe Sn agglomeration in the long run. [19][20][21] Therefore, the reversibility and cyclability of SnO 2 still need to be improved.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, constructing heterostructure with bicomponent hybridization, such as SnO 2 /Fe 2 O 3 , SnO 2 @SnS 2 , and SnO 2 @Nb 2 O 5 , has been proved to be an effective strategy to achieve high reversible capacities and long-term cyclic life. [19,22,23] MoS 2 nanosheet, a typical p-type semiconductor, has also attracted tremendous interest as an excellent anode material owing to its high reversible capacity of 900-1200 mAh g À1 . [24][25][26][27] Coupling with MoS 2 nanosheets, the SnO 2 anode (an n-type semiconductor) demonstrates enhanced charge transfer and surface reaction kinetics owing to the built-in electric field between them.…”

Section: Introductionmentioning

confidence: 99%

Binding SnO₂ Nanoparticles with MoS₂ Nanosheets Toward Highly Reversible and Cycle‐Stable Lithium/Sodium Storage

Cheng,

Zhang,

Tang

et al. 2023

Energy & Environ Materials

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SnO2, with its high theoretical capacity, abundant resources, and environmental friendliness, is widely regarded as a potential anode material for lithium‐ion batteries (LIBs). Nevertheless, the coarsening of the Sn nanoparticles impedes the reconversion back to SnO2, resulting in low coulombic efficiency and rapid capacity decay. In this study, we fabricated a heterostructure by combining SnO2 nanoparticles with MoS2 nanosheets via plasma‐assisted milling. The heterostructure consists of in‐situ exfoliated MoS2 nanosheets predominantly in 1 T phase, which tightly encase the SnO2 nanoparticles through strong bonding. This configuration effectively mitigates the volume change and particle aggregation upon cycling. Moreover, the strong affinity of Mo, which is the lithiation product of MoS2, toward Sn plays a pivotal role in inhibiting the coarsening of Sn nanograins, thus enhancing the reversibility of Sn to SnO2 upon cycling. Consequently, the SnO2/MoS2 heterostructure exhibits superb performance as an anode material for LIBs, demonstrating high capacity, rapid rate capability, and extended lifespan. Specifically, discharged/charged at a rate of 0.2 A g−1 for 300 cycles, it achieves a remarkable reversible capacity of 1173.4 mAh g−1. Even cycled at high rates of 1.0 and 5.0 A g−1 for 800 cycles, it still retains high reversible capacities of 1005.3 and 768.8 mAh g−1, respectively. Moreover, the heterostructure exhibits outstanding electrochemical performance in both full LIBs and sodium‐ion batteries.

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Achieving highly stable Sn-based anode by a stiff encapsulation heterostructure

Cited by 10 publications

References 52 publications

Temperature-dependent synthesis of SnO2 or Sn embedded in hollow porous carbon nanofibers toward customized lithium-ion batteries

Temperature-dependent synthesis of SnO2 or Sn embedded in hollow porous carbon nanofibers toward customized lithium-ion batteries

Interface Engineering Enhances Pseudocapacitive Contribution to Alkali Metal Ion Batteries

Binding SnO₂ Nanoparticles with MoS₂ Nanosheets Toward Highly Reversible and Cycle‐Stable Lithium/Sodium Storage

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Achieving highly stable Sn-based anode by a stiff encapsulation heterostructure

Cited by 10 publications

References 52 publications

Temperature-dependent synthesis of SnO2 or Sn embedded in hollow porous carbon nanofibers toward customized lithium-ion batteries

Temperature-dependent synthesis of SnO2 or Sn embedded in hollow porous carbon nanofibers toward customized lithium-ion batteries

Interface Engineering Enhances Pseudocapacitive Contribution to Alkali Metal Ion Batteries

Binding SnO2 Nanoparticles with MoS2 Nanosheets Toward Highly Reversible and Cycle‐Stable Lithium/Sodium Storage

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Product

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Binding SnO₂ Nanoparticles with MoS₂ Nanosheets Toward Highly Reversible and Cycle‐Stable Lithium/Sodium Storage