Improved pseudocapacitive charge storage in highly ordered mesoporous TiO2/carbon nanocomposites as high-performance Li-ion hybrid supercapacitor anodes.
RSC Adv
; 9(65): 37882-37888, 2019 Nov 19.
Article
em En
| MEDLINE
| ID: mdl-35541764
ABSTRACT
A Li-ion hybrid supercapacitor (Li-HSCs), an integrated system of a Li-ion battery and a supercapacitor, is an important energy-storage device because of its outstanding energy and power as well as long-term cycle life. In this work, we propose an attractive material (a mesoporous anatase titanium dioxide/carbon hybrid material, m-TiO2-C) as a rapid and stable Li+ storage anode material for Li-HSCs. m-TiO2-C exhibits high specific capacity (â¼198 mA h g-1 at 0.05 A g-1) and promising rate performance (â¼90 mA h g-1 at 5 A g-1) with stable cyclability, resulting from the well-designed porous structure with nanocrystalline anatase TiO2 and conductive carbon. Thereby, it is demonstrated that a Li-HSC system using a m-TiO2-C anode provides high energy and power (â¼63 W h kg-1, and â¼4044 W kg-1).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
RSC Adv
Ano de publicação:
2019
Tipo de documento:
Article