Novel Core‐Shell Sn‐Cu Anodes for Lithium Rechargeable Batteries Prepared by a Redox‐Transmetalation Reaction

Kim, Min; Sim, Seongmun; Cho, Jaephil

doi:10.1002/adma.201002480

Cited by 145 publications

(85 citation statements)

References 36 publications

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“…It shows high reversibility and stable capacity with prolonged cycling, but the reversible capacity has reached its theoretical limit (~372 mAh g ) [5][6][7], and tin (994 mAh g -1 ) [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity

Wang

Chou

Kim

et al. 2013

Electrochimica Acta

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Dou, S. Xue. (2013). Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity. Electrochimica Acta, 93 (March), 213-221.Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity AbstractFrom energy and environmental consideration, an industrial waste product, coal tar pitch (CTP), is used as the carbon source for Si/AC composite. We exploited a facile sintering method to largely scale up Si/ amorphous carbon nanocomposite. The composites with 20 wt.% silicon with PVdF binder exhibited stable lithium storage ability for prolonged cycling. The composite anode delivered a capacity of 400.3 mAh g−1 with a high capacity retention of 71.3% after 1000 cycles. Various methods are used to investigate the reason for the outstanding cyclability. The results indicate that the silicon nanoparticles are wrapped by amorphous SiOx and AC in Si/AC composite. This uniform structure is very favorable to lithium storage, the SiOx and AC layers can supply sufficient conductivity and strong elasticity to suppress the stress resulting from the reaction of Si with Li during charge/discharge process.

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Section: Introductionmentioning

confidence: 99%

Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity

Wang

Chou

Kim

et al. 2013

Electrochimica Acta

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“…Nevertheless, Sn is also plagued by large volume change. To maintain the structural stability, many Sn-based composites have been attempted [18,[60][61][62][63][64][65]. Our group prepared ultrasmall Sn nanoparticles with a particle size of ~5 nm homogenously embedded in N-doped porous carbon (5-Sn/C) by carbonizing the Sn (Salen) (Fig.…”

Section: Tin (Sn)mentioning

confidence: 99%

“…The composite delivered a capacity of 410 mA h g −1 after 1,000 cycles at 4,000 mA g (6.1 C). Cho's group [63] synthesized core-shell Sn-Cu nanoalloys with a particle size of 10 nm, and the Sn-Cu composite displayed a charge capacity of 620 mA h g −1 at 6 C.…”

Section: Tin (Sn)mentioning

confidence: 99%

Inorganic & organic materials for rechargeable Li batteries with multi-electron reaction

Zhang

Tao

2014

Sci. China Mater.

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where ΔG is the Gibbs free energy difference, n the transfer electron number, F the Faraday constant, M w the molecular weight. It is very important to choose the electrode materials with high specific capacity and suitable voltage. The high specific capacity is attributed to high transfer electron number and low molecular weight. Fig. 1 Rechargeable Li batteries as electrochemical energy storage and conversion devices are continuously changing human life. In order to meet the increasing demand for energy and power density, it is essential and urgent to exploit the electrode materials with high capacity and fast charge transfer (for Li-ion and Li-S batteries) and electrocatalysts with high activity (for rechargeable Li-O 2 batteries). The high capacity is attributed to high electron transfer number and low molecular weight of the electrode materials. Combined with proper nanostructure design, the electronic transfer and ionic conductivity will be improved. This review summarizes recent efforts to apply electrode materials for Li-ion batteries with multi-electron reaction, Li-S batteries, and efficient electrocatalysts for Li-O 2 batteries. The methods to enhance the cycling and rate performance have been discussed in detail. Advanced rechargeable Li batteries with multi-electron reaction will become the research emphasis in the future.

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“…Another approach is to hybridize with conducting materials to form the composite structures [17][18][19]. The introduction of elements Cu or Zn into the host materials had been reported to greatly improve the electrical conductivity and supply as buffer matrix during Li insertion [20,21]. Wang et al have reported that the ternary Cu 2 SnS 3 with the interlayer spaces and tunnels in its crystal structures make itself ideal lithium-ion electrode materials and exhibited excellent conducting ability [22].…”

Section: Introductionmentioning

confidence: 98%

Solvothermal synthesis of flower-like Cu2ZnSnS4 nanostructures and their application as anode materials for lithium-ion batteries

Zhou

Feng

et al. 2012

Chemical Physics Letters

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Novel Core‐Shell Sn‐Cu Anodes for Lithium Rechargeable Batteries Prepared by a Redox‐Transmetalation Reaction

Cited by 145 publications

References 36 publications

Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity

Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity

Inorganic & organic materials for rechargeable Li batteries with multi-electron reaction

Solvothermal synthesis of flower-like Cu2ZnSnS4 nanostructures and their application as anode materials for lithium-ion batteries

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