Nanosized CoO Loaded on Copper Foam for High-Performance, Binder-Free Lithium-Ion Batteries

Mingna Liao; Qilun Zhang; Fengling Tang; Zhiwei Xu; Xin Zhou; Youpeng Li; Yali Zhang; Chenghao Yang; Qiang Ru; Lingzhi Zhao

doi:10.3390/nano8040183

Nanomaterials (Mar 2018)

Nanosized CoO Loaded on Copper Foam for High-Performance, Binder-Free Lithium-Ion Batteries

Mingna Liao,
Qilun Zhang,
Fengling Tang,
Zhiwei Xu,
Xin Zhou,
Youpeng Li,
Yali Zhang,
Chenghao Yang,
Qiang Ru,
Lingzhi Zhao

Affiliations

Mingna Liao: Institute of Opto-Electronic Materials and Technology, South China Normal University, Guangzhou 510631, China
Qilun Zhang: Institute of Opto-Electronic Materials and Technology, South China Normal University, Guangzhou 510631, China
Fengling Tang: Department of Medical Engineering, Guangdong Food and Drug Vocational-Technical School, Guangzhou 510663, China
Zhiwei Xu: Guangzhou Zhixin Middle School, No.152, Zhixin South Road, Guangzhou 510080, China
Xin Zhou: Institute of Opto-Electronic Materials and Technology, South China Normal University, Guangzhou 510631, China
Youpeng Li: Institute of Opto-Electronic Materials and Technology, South China Normal University, Guangzhou 510631, China
Yali Zhang: Institute of Opto-Electronic Materials and Technology, South China Normal University, Guangzhou 510631, China
Chenghao Yang: New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
Qiang Ru: Guangdong Provincial Engineering Technology Research Center for Low Carbon and Advanced Energy Materials, Guangzhou 510631, China
Lingzhi Zhao: Institute of Opto-Electronic Materials and Technology, South China Normal University, Guangzhou 510631, China

DOI: https://doi.org/10.3390/nano8040183
Journal volume & issue: Vol. 8, no. 4
p. 183

Abstract

Read online

The synthesis of nanosized CoO anodes with unique morphologies via a hydrothermal method is investigated. By adjusting the pH values of reaction solutions, nanoflakes (CoO-NFs) and nanoflowers (CoO-FLs) are successfully located on copper foam. Compared with CoO-FLs, CoO-NFs as anodes for lithium ion batteries present ameliorated lithium storage properties, such as good rate capability, excellent cycling stability, and large CoO nanoflakes; CoO nanoflowers; anodes; binder free; lithium ion batteriesreversible capacity. The initial discharge capacity is 1470 mA h g−1, while the reversible capacity is maintained at 1776 m Ah g−1 after 80 cycles at a current density of 100 mA h g−1. The excellent electrochemical performance is ascribed to enough free space and enhanced conductivity, which play crucial roles in facilitating electron transport during repetitive Li+ intercalation and extraction reaction as well as buffering the volume expansion.

Published in Nanomaterials

ISSN: 2079-4991 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: https://www.mdpi.com/journal/nanomaterials

About the journal

Abstract

Keywords