Controllable Synthesis of Mesoporous Peapod‐like Co3O4@Carbon Nanotube Arrays for High‐Performance Lithium‐Ion Batteries
- 27 April 2015
- journal article
- research article
- Published by Wiley in Angewandte Chemie International Edition
- Vol. 54 (24), 7060-7064
- https://doi.org/10.1002/anie.201501475
Abstract
Transition metal oxides are regarded as promising anode materials for lithium-ion batteries because of their high theoretical capacities compared with commercial graphite. Unfortunately, the implementation of such novel anodes is hampered by their large volume changes during the Li+ insertion and extraction process and their low electric conductivities. Herein, we report a specifically designed anode architecture to overcome such problems, that is, mesoporous peapod-like Co3O4@carbon nanotube arrays, which are constructed through a controllable nanocasting process. Co3O4 nanoparticles are confined exclusively in the intratubular pores of the nanotube arrays. The pores between the nanotubes are open, and thus render the Co3O4 nanoparticles accessible for effective electrolyte diffusion. Moreover, the carbon nanotubes act as a conductive network. As a result, the peapod-like Co3O4@carbon nanotube electrode shows a high specific capacity, excellent rate capacity, and very good cycling performance.Keywords
This publication has 48 references indexed in Scilit:
- Single‐Layered Ultrasmall Nanoplates of MoS2 Embedded in Carbon Nanofibers with Excellent Electrochemical Performance for Lithium and Sodium StorageAngewandte Chemie International Edition, 2014
- Single‐Layered Ultrasmall Nanoplates of MoS2 Embedded in Carbon Nanofibers with Excellent Electrochemical Performance for Lithium and Sodium StorageAngewandte Chemie, 2014
- Sol–Gel Design Strategy for Ultradispersed TiO2 Nanoparticles on Graphene for High-Performance Lithium Ion BatteriesJournal of the American Chemical Society, 2013
- 3D Graphene Foams Cross‐linked with Pre‐encapsulated Fe3O4 Nanospheres for Enhanced Lithium StorageAdvanced Materials, 2013
- Metal Oxide Hollow Nanostructures for Lithium‐ion BatteriesAdvanced Materials, 2012
- Recent developments in nanostructured anode materials for rechargeable lithium-ion batteriesEnergy & Environmental Science, 2011
- Battery materials for ultrafast charging and dischargingNature, 2009
- Nanomaterialien für wiederaufladbare LithiumbatterienAngewandte Chemie, 2008
- Nanomaterials for Rechargeable Lithium BatteriesAngewandte Chemie International Edition, 2008
- Building better batteriesNature, 2008