Macroporous Cu(OH)2 nanorod network fabricated directly on Cu foil as binder-free Lithium-ion battery anode with ultrahigh capacity

Akbar I. Inamdar, Harish S. Chavan, Abu Talha Aqueel Ahmed, Yongcheol Jo, Sangeun Cho, Jongmin Kim, Sambhaji M. Pawar, Hyungsang Kim, Hyunsik Im

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Metal-hydroxide based materials have attracted much attention as electrode materials for electrochemical energy storage and conversion owing to their unique large interlayer spacing, enhanced active surface area and robustness that can result in high electrochemical performance. Here, we report on the synthesis of a macroporous Cu(OH)2 nanorod network via single-step surface chemical oxidation and demonstrate its impressive Li ion battery (LIB) performance as a binder-free anode material. The Cu(OH)2 nanorod network anode delivers an ultrahigh reversible discharge capacity of 2145 mAhg−1 at a current density of 0.1 Ag−1 in the first cycle that then stabilizes at 1472 mAhg−1 in the subsequent cycles. The excellent rate performance at the ultrahigh current rates of 1.0 and 2.0 Ag−1 with a Coulombic efficiency of 99% was obtained. The electrode exhibits the capacity of 506 mAhg−1 even after 100 cycles which is higher than the conventional carbonaceous materials. Our experimental findings and scalable synthesis approach can be useful for developing other free-standing binder-free transition metal hydroxide materials that can be directly used as battery electrodes and catalysts.

Original languageEnglish
Article number154593
JournalJournal of Alloys and Compounds
Volume829
DOIs
StatePublished - 15 Jul 2020

Keywords

  • Binder free anode
  • Cu(OH) nanorod network
  • Li–ion batteries
  • Ultra-high specific discharge capacity

Fingerprint

Dive into the research topics of 'Macroporous Cu(OH)2 nanorod network fabricated directly on Cu foil as binder-free Lithium-ion battery anode with ultrahigh capacity'. Together they form a unique fingerprint.

Cite this