Lithium storage in carbon-coated SnO2 by conversion reaction

Guo, Xianwei; Fang, Xiangpeng; Sun, Yi‐Yang; Shen, Lian; Wang, Z.X.; Chen, L.Q.

doi:10.1016/j.jpowsour.2012.10.068

Cited by 153 publications

(98 citation statements)

References 26 publications

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“…), [27,28] as shown in Figure S9. These reaction products were different from lithium titanates (Li 2 TiO 3 ) but similar to Li 2 CO 3 formed on the TiO 2 -Li anode surface.…”

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confidence: 97%

Li‐ion Reaction to Improve the Rate Performance of Nanoporous Anatase TiO₂ Anodes

Liu

et al. 2013

Energy Tech

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Large initial capacity losses and low tap densities are among the major challenges to the wide‐ranging application of Li ion batteries based on anatase titania (TiO2) anodes. This study reports the root causes of the capacity losses and proposes effective ways to control them. Nanoporous TiO2 microspheres with a tap density as high as 1.1 g cm−3 are successfully prepared by using a spray drying method and a focused study is made of their electrochemical reaction kinetics. According to the results, the capacity losses are ascribed to the irreversible Li‐ion interfacial storage capability that arises mainly from the high reactivity between TiO2 and the electrolyte solution. A new anode material, TiO2–Li, prepared by reacting TiO2 with Li ions delivers a 50 % reduction in charge‐transfer resistance and a remarkable enhancement of Li‐ion diffusion coefficient by almost seven times, as compared to the neat TiO2 powders. The TiO2–Li anode presents a much lower initial capacity loss, higher rate performance, and better reversibility.

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“…), [27,28] as shown in Figure S9. These reaction products were different from lithium titanates (Li 2 TiO 3 ) but similar to Li 2 CO 3 formed on the TiO 2 -Li anode surface.…”

mentioning

confidence: 97%

Li‐ion Reaction to Improve the Rate Performance of Nanoporous Anatase TiO₂ Anodes

Liu

et al. 2013

Energy Tech

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“…The electrochemical reaction of SnO 2 with lithium is based on the conversion mechanism of SnO 2 reduced to Sn and Li 2 O, followed by alloying mechanism of Sn with Li. While the first step of conversion reaction is irreversible with a theoretical capacity of 780 mA h g −1 in some previous reports [162,163], several groups confirmed the reversibility of conversion reaction of SnO 2 with higher theoretical capacity of~1493 mA h g −1 [164,165]. The irreversible capacity resulted from irreversible formation of Li 2 O and huge volume change during cycling would induce limited cycle performance of SnO 2 .…”

Section: Metal Oxidesmentioning

confidence: 87%

Nanostructured electrode materials for lithium-ion and sodium-ion batteries via electrospinning

Zeng

et al. 2016

Sci. China Mater.

127

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Electrospinning has attracted tremendous attention in the design and preparation of 1D nanostructured electrode materials for lithium-ion batteries (LIBs) and sodium-ion batteries (NIBs), due to the versatility and facility. In this review, we present a comprehensive summary of the development of electrospun electrode nanomaterials for LIBs and NIBs, and a brief introduction about electrode materials beyond LIBs and NIBs. By summarizing various electrochemical active materials, this review focuses on the evolution in structures and the constitution of electrospun electrode materials. In detail, a variety of electrospun anode and cathode materials of LIBs and NIBs have been properly discussed, respectively. Finally, the current progress in the electrospun electrode materials is well reviewed and the development direction is also pointed out. We believe that in the nearly future, electrospun electrode materials would be applied in commercial LIBs and promote the advance in NIBs. And we hope that this review could be helpful in the design and fabrication of electrospun hierarchical materials for other advanced energy-storage devices.

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“…Guo et al [9] reported that, although only alloying/dealloying reactions can reversibly take place in carbon-free SnO 2 hollow microspheres, SnO could be detected in the recharge products of carbon-coated SnO 2 hollow spheres. The occurrence of the partial oxidation of tin was attributed to the improved electronic conductivity after carbon coating.…”

Section: Introductionmentioning

confidence: 99%

Transition‐Metal‐Catalyzed Oxidation of Metallic Sn in NiO/SnO₂ Nanocomposite

Hua

Fang

Wang

et al. 2014

Chemistry A European J

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It is well accepted that metallic tin as a discharge (reduction) product of SnO(x) cannot be electrochemically oxidized below 3.00 V versus Li(+)/Li(0) due to the high stability of Li2O, though a similar oxidation can usually occur for a transition metal formed from the corresponding oxide. In this work, nanosized Ni2 SnO4 and NiO/SnO2 nanocomposite were synthesized by coprecipitation reactions and subsequent heat treatment. Owing to the catalytic effect of nanosized metallic nickel, metallic tin can be electrochemically oxidized to SnO2 below 3.00 V. As a result, the reversible lithium-storage capacities of the nanocomposite reach 970 mAh g(-1) or above, much higher than the theoretical capacity (ca. 750 mAh g(-1)) of SnO2, NiO, or their composites. These findings extend the well-known electrochemical conversion reaction to non-transition-metal compounds and may have important applications, for example, in constructing high-capacity electrode materials and efficient catalysts.

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Lithium storage in carbon-coated SnO2 by conversion reaction

Cited by 153 publications

References 26 publications

Li‐ion Reaction to Improve the Rate Performance of Nanoporous Anatase TiO₂ Anodes

Li‐ion Reaction to Improve the Rate Performance of Nanoporous Anatase TiO₂ Anodes

Nanostructured electrode materials for lithium-ion and sodium-ion batteries via electrospinning

Transition‐Metal‐Catalyzed Oxidation of Metallic Sn in NiO/SnO₂ Nanocomposite

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Lithium storage in carbon-coated SnO2 by conversion reaction

Cited by 153 publications

References 26 publications

Li‐ion Reaction to Improve the Rate Performance of Nanoporous Anatase TiO2 Anodes

Li‐ion Reaction to Improve the Rate Performance of Nanoporous Anatase TiO2 Anodes

Nanostructured electrode materials for lithium-ion and sodium-ion batteries via electrospinning

Transition‐Metal‐Catalyzed Oxidation of Metallic Sn in NiO/SnO2 Nanocomposite

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Li‐ion Reaction to Improve the Rate Performance of Nanoporous Anatase TiO₂ Anodes

Li‐ion Reaction to Improve the Rate Performance of Nanoporous Anatase TiO₂ Anodes

Transition‐Metal‐Catalyzed Oxidation of Metallic Sn in NiO/SnO₂ Nanocomposite