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Hierarchical micro-lamella-structured 3D porous copper current collector coated with tin for advanced lithium-ion batteries

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Title
Hierarchical micro-lamella-structured 3D porous copper current collector coated with tin for advanced lithium-ion batteries
Author(s)
Park H.; Ji Hyun Um; Choi H.; Yoon W.-S.; Yung-Eun Sung; Choe H.
Publication Date
2017-03
Journal
APPLIED SURFACE SCIENCE, v.399, no., pp.132 - 138
Publisher
ELSEVIER SCIENCE BV
Abstract
A Novel 3D porous Sn-Cu architecture is prepared as an anode material for use in an advanced lithium-ion battery. Micro-lamellar-structured 3D porous Cu foam, which is electroless-plated with Sn as an active material, is used as anode current collector. Compared to Sn-coated Cu foil, the 3D Sn-Cu foam exhibits superior Li-ion capacity and stable capacity retention, demonstrating the advantage of 3D porous architecture by preserving its structural integrity. In addition, the effect of heat-treatment after Sn plating is investigated. Sn/Sn6Cu5 and SnO2/Cu10Sn3 were formed on and in the 3D Sn-Cu foam under the heat-treatment at 150 °C and 500 °C, respectively. The development of Cu10Sn3 in the 3D Sn-Cu foam heat-treated at 500 °C can be a key factor for the enhanced cyclic stability because the Cu10Sn3 inactively reacts with Li-ion and alleviates the volume expansion of SnO2 as an inactive matrix. © 2016 Elsevier B.V
URI
https://pr.ibs.re.kr/handle/8788114/3435
ISSN
0169-4332
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
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