Sn@CNT and Sn@C@CNT nanostructures for superior reversible lithium ion storage

Wang, Yong; Wu, Minghong; Jiao, Zheng; Lee, Jim Yang

doi:10.1021/cm900702d

Cited by 188 publications

(139 citation statements)

References 28 publications

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“…alloys and Sn/C composites are two effective approaches. Sn/C composites such as Sn@C [11,12] or Sn embedded in C, [13][14][15][16] Sn/graphene composites, [17][18][19][20] and Sn/ carbon nanotube (CNT) composites (including depositing Sn onto CNTs [21,22] or growth of CNTs with Sn as a catalyst [23][24][25][26] ) have rich pores that can accommodate the volume expansion upon lithiation. CNTs possess excellent electrical conductivity, mechanical strength, and flexibility, and thus is a great matrix for alleviating the mechanical strain of Sn during lithiation/de-lithiation.…”

mentioning

confidence: 99%

A Hierarchical Tin/Carbon Composite as an Anode for Lithium‐Ion Batteries with a Long Cycle Life

Huang,

Cui,

Chang

et al. 2014

Angew Chem Int Ed

158

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Tin is a promising anode candidate for next-generation lithium-ion batteries with a high energy density, but suffers from the huge volume change (ca. 260 %) upon lithiation. To address this issue, here we report a new hierarchical tin/carbon composite in which some of the nanosized Sn particles are anchored on the tips of carbon nanotubes (CNTs) that are rooted on the exterior surfaces of micro-sized hollow carbon cubes while other Sn nanoparticles are encapsulated in hollow carbon cubes. Such a hierarchical structure possesses a robust framework with rich voids, which allows Sn to alleviate its mechanical strain without forming cracks and pulverization upon lithiation/de-lithiation. As a result, the Sn/C composite exhibits an excellent cyclic performance, namely, retaining a capacity of 537 mAh g(-1) for around 1000 cycles without obvious decay at a high current density of 3000 mA g(-1) .

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mentioning

confidence: 99%

A Hierarchical Tin/Carbon Composite as an Anode for Lithium‐Ion Batteries with a Long Cycle Life

Huang,

Cui,

Chang

et al. 2014

Angew Chem Int Ed

158

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show abstract

“…4.12). Using the same concept of free space in a composite made of 37.6 wt% of tin encapsulated in carbon nanotubes (CNTs), a very stable capacity of about 500 mAh g À1 was obtained [47]. This capacity value represents 100% of the theoretical capacity of the composite.…”

Section: Tin-based Compositesmentioning

confidence: 96%

Tin-Based Anode Materials for Lithium-Ion Batteries

Courtel

Abu-Lebdeh

2012

Nanotechnology for Lithium-Ion Batteries

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Tin and its compounds constitute a new class of high-capacity anode materials that can replace graphitic carbon in current lithium-ion batteries. In the case of the two most studied, tin metal and tin oxide, it was shown that the inevitable volume expansion during electrochemical alloying with lithium can be mitigated using many strategies including formation of nanofilms, nanoparticles, nanocomposites, and nanostructures. It was demonstrated that high reversible capacities can be obtained and this was highlighted by the successful commercialization of a lithium-ion battery with a Sn/Co/C nanocomposite (Nexelion TM ).

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“…Some examples of these materials are carbon nanotubes [10][11][12][13], graphene [14][15][16][17], carbon nanofiber [18][19][20], and porous carbon [21,22]. Tubular nanostructure offers high surface area with less utilization of mass to encapsulate materials with poor conductivity [23,24] but has low surface area [25] and high contact resistance at the electrode-current collector [26,27]. Although 2D materials, such as graphene nanosheets, provide short diffusion distance and high flexibility [28,29], graphene nanosheets tend to aggregate (self-restack) during the preparation of the electrode, resulting in substantial loss of active surface area and reduced electrochemical performance [28].…”

Section: Introductionmentioning

confidence: 99%

Biomass-Derived, Interconnected and Reticular Carbon Microtubes Electrodes for Symmetric Capacitors

Wang

Wei

et al. 2017

Preprint

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Biomass materials have received attention for energy storagebecaused of the advantage of low-cost, easy-to-prepare, and eco-friendliness. Three-dimensional carbon materialswith abundant pore structure gradually becomeresearch hotspot in high-performance energy storage. In this study, an easy-to-prepare, green, light and elastic activated carbon was present using the biomass Juncus effusus (JCE) via high-temperature pyrolysis, followed by activation in air. Compared with previously reported bio-carbons, the proposed air-activated bio-carbon contributes in the fabrication of pores to preserve the interconnected, reticular and tubular structure. Moreover, the interconnected porous material also inherits the excellent tenacity of the original JCE such as the material can be bended to below 90 o under an external force while maintaining structural integrity. The activated porous carbon material exhibits an enhanced electric double-layer capacitance (~210 F g -1 at 1 A g -1 ), with capacitance retention of ~78.62% at 10 A g -1 . The interconnected porous carbon microtubes electrode as a double-layer symmetric capacitor exhibits considerable capacitance retention (84%) after 2000 cycles at 1 A g -1 . The improved energy storage performance was proposed to be attributed to the shortened ionic diffusion distance and sufficient contact between the interface of the carbon electrode and electrolyte, which is resulted from the elastic, undamaged structure and types of pores. These results demonstrated that as-preparedcarbon materials have potentional application in symmetric capacitors.

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Sn@CNT and Sn@C@CNT nanostructures for superior reversible lithium ion storage

Cited by 188 publications

References 28 publications

A Hierarchical Tin/Carbon Composite as an Anode for Lithium‐Ion Batteries with a Long Cycle Life

A Hierarchical Tin/Carbon Composite as an Anode for Lithium‐Ion Batteries with a Long Cycle Life

Tin-Based Anode Materials for Lithium-Ion Batteries

Biomass-Derived, Interconnected and Reticular Carbon Microtubes Electrodes for Symmetric Capacitors

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