Yolk–Shell Sn@C Eggette-like Nanostructure: Application in Lithium-Ion and Sodium-Ion Batteries

Li, Site; Wang, Ziming; Liu, Jun; Yang, Linyu; Guo, Yue; Cheng, Li; Lei, Ming; Wang, Wenjun

doi:10.1021/acsami.6b04736

Cited by 135 publications

(60 citation statements)

References 55 publications

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Section: Structure Design Of Sn‐based Anode Materialsmentioning

confidence: 99%

“…In order to combine the advantages of 2D structure and yolk–shell structure, Li et al7 synthesized yolk–shell Sn@C eggette‐like compounds (SCE) through hydrothermal and self‐assembly processes (Figure 15g). As shown in Figure 15i–m, the SCE consisted of Sn cores encapsulated by carbon membrane networks, with extra voids between the Sn cores and carbon shells.…”

Section: Structure Design Of Sn‐based Anode Materialsmentioning

confidence: 99%

“…Although having similar electrochemical energy storage mechanism, sodium‐ion batteries (SIBs) usually have poorer electrochemical properties than that of LIBs because of the much bigger size of Na + (0.59 Å for Li + and 1.02 Å for Na + in radius). This big Na + size results in poor kinetic performance and large volume fluctuations 6, 7. Hence SIBs have inspired much less research enthusiasm than LIBs in the past.…”

Section: Introductionmentioning

confidence: 99%

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Metallic Sn‐Based Anode Materials: Application in High‐Performance Lithium‐Ion and Sodium‐Ion Batteries

2017

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With the fast‐growing demand for green and safe energy sources, rechargeable ion batteries have gradually occupied the major current market of energy storage devices due to their advantages of high capacities, long cycling life, superior rate ability, and so on. Metallic Sn‐based anodes are perceived as one of the most promising alternatives to the conventional graphite anode and have attracted great attention due to the high theoretical capacities of Sn in both lithium‐ion batteries (LIBs) (994 mA h g−1) and sodium‐ion batteries (847 mA h g−1). Though Sony has used Sn–Co–C nanocomposites as its commercial LIB anodes, to develop even better batteries using metallic Sn‐based anodes there are still two main obstacles that must be overcome: poor cycling stability and low coulombic efficiency. In this review, the latest and most outstanding developments in metallic Sn‐based anodes for LIBs and SIBs are summarized. And it covers the modification strategies including size control, alloying, and structure design to effectually improve the electrochemical properties. The superiorities and limitations are analyzed and discussed, aiming to provide an in‐depth understanding of the theoretical works and practical developments of metallic Sn‐based anode materials.

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Section: Structure Design Of Sn‐based Anode Materialsmentioning

confidence: 99%

Section: Structure Design Of Sn‐based Anode Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metallic Sn‐Based Anode Materials: Application in High‐Performance Lithium‐Ion and Sodium‐Ion Batteries

2017

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“…Large-scale energy storage and renewable energy storage have not only provided better prospects for the applications of lithium-ion batteries (LIBs), but also put forward higher requirements on their energy density, rate capability, cycle life and safety 1–3 . However, conventional graphite anode in LIBs suffers from safety hazards due to their low operating voltage which can cause decomposition of the electrolyte and formation of the solid electrolyte interface (SEI) film.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Li4Ti5O12-TiO2 Nanosheets with Structural Defects as High-Rate and Long-Life Anodes for Lithium-Ion Batteries

Chen

et al. 2017

Sci Rep

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Development of high-power lithium-ion batteries with high safety and durability has become a key challenge for practical applications of large-scale energy storage devices. Accordingly, we report here on a promising strategy to synthesize a high-rate and long-life Li4Ti5O12-TiO2 anode material. The novel material exhibits remarkable rate capability and long-term cycle stability. The specific capacities at 20 and 30 C (1 C = 175 mA g−1) reach 170.3 and 168.2 mA h g−1, respectively. Moreover, a capacity of up to 161.3 mA h g−1 is retained after 1000 cycles at 20 C, and the capacity retention ratio reaches up to 94.2%. The extraordinary rate performance of the Li4Ti5O12-TiO2 composite is attributed to the existence of oxygen vacancies and grain boundaries, significantly enhancing electrical conductivity and lithium insertion/extraction kinetics. Meanwhile, the pseudocapacitive effect is induced owing to the presence of abundant interfaces in the composite, which is beneficial to enhancing specific capacity and rate capability. Additionally, the ultrahigh capacity at low rates, greater than the theoretical value of spinel Li4Ti5O12, may be correlated to the lithium vacancies in 8a sites, increasing the extra docking sites of lithium ions.

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“…When cycled in NIB at a current density of 200 mA g −1 , the 8-Sn@C composite showed a reversible capacity of 493 mA h g −1 (Figure 12). [199] Another interesting approach to reduce the negative effects of Sn volume changes involved the use of carbon nanotube (CNT)-coated cellulose fibers. This material delivered stable 400 mA h g −1 at a current density of 100 mA g −1 , and was able to maintain 200 mA h g −1 after 1000 cycles at 1 A g −1 .…”

Section: Sn and Sn-based Alloysmentioning

confidence: 99%

Na‐Ion Batteries for Large Scale Applications: A Review on Anode Materials and Solid Electrolyte Interphase Formation

Muñoz‐Márquez

Saurel

Gómez-Cámer

et al. 2017

Advanced Energy Materials

290

196

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Once lithium-ion battery (LIB) technology has reached a maturity level enough to be the battery of choice for consumer electronics and power tools, it will be very well positioned to take over transport applications while displacing, for instance, NiCd and Ni-MH technologies. However, a major challenge is waiting for us in the near term: large scale and low cost stationary energy storage. This will be crucial for boosting the efficiency, adaptability, and reliability of the next-generation power grid. The use of stationary energy storage systems coupled to the The urgent need for optimizing the available energy through smart grids and efficient large-scale energy storage systems is pushing the construction and deployment of Li-ion batteries in the MW range which, in the long term, are expected to hit the GW dimension while demanding over 1000 ton of positive active material per system. This amount of Li-based material is equivalent to almost 1% of current Li consumption and can strongly influence the evolution of the lithium supply and cost. Given this uncertainty, it becomes mandatory to develop an energy storage technology that depends on almost infinite and widespread resources: Na-ion batteries are the best technology for large-scale applications. With small working cells in the market that cannot compete in cost ($/W h) with commercial Li-ion batteries, the consolidation of Na-ion batteries mainly depends on increasing their energy density and stability, the negative electrodes being at the heart of these two requirements. Promising Na-based negative electrodes for large-scale battery applications are reviewed, along with the study of the solid electrolyte interphase formed in the anode surface, which is at the origin of most of the stability problems.

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Yolk–Shell Sn@C Eggette-like Nanostructure: Application in Lithium-Ion and Sodium-Ion Batteries

Cited by 135 publications

References 55 publications

Metallic Sn‐Based Anode Materials: Application in High‐Performance Lithium‐Ion and Sodium‐Ion Batteries

Metallic Sn‐Based Anode Materials: Application in High‐Performance Lithium‐Ion and Sodium‐Ion Batteries

Fabrication of Li4Ti5O12-TiO2 Nanosheets with Structural Defects as High-Rate and Long-Life Anodes for Lithium-Ion Batteries

Na‐Ion Batteries for Large Scale Applications: A Review on Anode Materials and Solid Electrolyte Interphase Formation

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