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High‐Performance Supercapacitors Based on Intertwined CNT/V 2 O 5 Nanowire Nanocomposites
Author(s) -
Chen Zheng,
Augustyn Veronica,
Wen Jing,
Zhang Yuewei,
Shen Meiqing,
Dunn Bruce,
Lu Yunfeng
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201003658
Subject(s) - supercapacitor , materials science , nanocomposite , capacitor , nanotechnology , capacitance , fabrication , nanowire , electrode , optoelectronics , voltage , electrical engineering , medicine , chemistry , alternative medicine , engineering , pathology
High‐performance asymmetric super‐capacitors containing thick‐film electrodes (over 100 μm thick) made of CNT/V 2 O 5 nanowire composite are designed. The excellent conductivity, high specific capacitance, and a large voltage window of the CNT/V 2 O 5 nanocomposite enable the fabrication of devices with high energy and high power densities. Moreover, the resulting devices exhibit excellent cycling stability. This supercapacitor approach may be attractive for a wide range of device applications.