Loading…
Highly uniform platanus fruit-like CuCoS microspheres as an electrode material for high performance lithium-ion batteries and supercapacitors
Platanus fruit-like CuCo 2 S 4 microspheres were fabricated by using a facile hydrothermal method followed by a sulfidation process. As a lithium storage material, they deliver an outstanding initial specific capacity of 1119.3 mA h g −1 at 0.05 A g −1 and a high reversibility of 954 mA h g −1 over...
Saved in:
Published in: | Dalton transactions : an international journal of inorganic chemistry 2021-09, Vol.5 (37), p.1342-1351 |
---|---|
Main Authors: | , , , , , |
Format: | Article |
Language: | |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Platanus fruit-like CuCo
2
S
4
microspheres were fabricated by using a facile hydrothermal method followed by a sulfidation process. As a lithium storage material, they deliver an outstanding initial specific capacity of 1119.3 mA h g
−1
at 0.05 A g
−1
and a high reversibility of 954 mA h g
−1
over 200 cycles even at 1 A g
−1
. In addition, when applied in supercapacitors they display a superb specific capacitance of 824 F g
−1
at 1 A g
−1
, even over 10 000 cycles and they can also maintain 75% retention at 5 A g
−1
and exhibit good reversibility. Furthermore, an advanced asymmetric supercapacitor (ASC) exhibits an advantageous energy density of 36.67 W h kg
−1
when the power density increases up to 750 W kg
−1
. Additionally, the assembled device can easily light a 1.5 V bulb for several minutes. The excellent performance of CuCo
2
S
4
is due to the bimetallic synergistic effect and the unique platanus fruit-like microsphere architecture, which can limit the restacking of the structure and provide suitable voids. This excellent performance confirms that platanus fruit-like CuCo
2
S
4
microspheres are a promising electrode material for energy storge. This work will provide a new strategy to prepare high-performance bimetallic sulfide anode materials by a facile method.
Highly uniform platanus-like CuCo
2
S
4
microspheres show potential for both lithium ion batteries and supercapacitors. |
---|---|
ISSN: | 1477-9226 1477-9234 |
DOI: | 10.1039/d1dt02306c |