High capacity and excellent stability of lithium ion battery anode using interface-controlled binder-free multiwall carbon nanotubes grown on copper

Indranil Lahiri; Sung-Woo Oh; Jun Y Hwang; Sungjin Cho; Yang-Kook Sun; Rajarshi Banerjee; Wonbong Choi

doi:10.1021/nn100400r

High capacity and excellent stability of lithium ion battery anode using interface-controlled binder-free multiwall carbon nanotubes grown on copper

ACS Nano. 2010 Jun 22;4(6):3440-6. doi: 10.1021/nn100400r.

Authors

Indranil Lahiri¹, Sung-Woo Oh, Jun Y Hwang, Sungjin Cho, Yang-Kook Sun, Rajarshi Banerjee, Wonbong Choi

Affiliation

¹ Nano Materials and Device Lab, Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida, USA.

PMID: 20441185
DOI: 10.1021/nn100400r

Abstract

We present a novel binder-free multiwall carbon nanotube (MWCNT) structure as an anode in Li ion batteries. The interface-controlled MWCNT structure, synthesized through a two-step process of catalyst deposition and chemical vapor deposition (CVD) and directly grown on a copper current collector, showed very high specific capacity, almost three times as that of graphite, excellent rate capability even at a charging/discharging rate of 3 C, and no capacity degradation up to 50 cycles. Significantly enhanced properties of this anode could be related to high Li ion intercalation on the carbon nanotube walls, strong bonding with the substrate, and excellent conductivity.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Copper / chemistry*
Electric Power Supplies*
Electrodes*
Energy Transfer
Equipment Design
Equipment Failure Analysis
Lithium / chemistry*
Materials Testing
Nanotechnology / instrumentation*
Nanotubes, Carbon / chemistry*
Nanotubes, Carbon / ultrastructure*
Particle Size

Substances

Nanotubes, Carbon
Copper
Lithium