Chemical Dealloying Derived 3D Porous Current Collector for Li Metal Anodes

Qinbai Yun; Yan-Bing He; Wei Lv; Yan Zhao; Baohua Li; Feiyu Kang; Quan-Hong Yang

doi:10.1002/adma.201601409

Chemical Dealloying Derived 3D Porous Current Collector for Li Metal Anodes

Adv Mater. 2016 Aug;28(32):6932-9. doi: 10.1002/adma.201601409. Epub 2016 May 24.

Authors

Qinbai Yun^{1

2}, Yan-Bing He¹, Wei Lv¹, Yan Zhao^{1

2}, Baohua Li¹, Feiyu Kang^{1

2}, Quan-Hong Yang^{1

3}

Affiliations

¹ Shenzhen Key Laboratory for Graphene-based Materials and Engineering Laboratory for Functionalized Carbon Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China.
² Laboratory of Advanced Materials, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
³ School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.

PMID: 27219349
DOI: 10.1002/adma.201601409

Abstract

A 3D porous Cu current collector is fabricated through chemical dealloying from a commerial Cu-Zn alloy tape. The interlinked porous framework naturally integrated can accommodate Li deposition, suppressing dendrite growth and alleviating the huge volume change during cycling. The Li metal anode combined with such a porous Cu collector demonstrates excellent performance and commerial potentials in Li-based secondary batteries.

Keywords: Coulombic efficiency (CE); chemical dealloying; lithium metal anodes; porous current collectors; solid electrolyte interphases.