Hierarchical
Fusiform Microrods Constructed by Parallelly
Arranged Nanoplatelets of LiCoO2 Material with Ultrahigh
Rate Performance
Posted on 2020-04-01 - 00:13
The
past few decades have witnessed the unprecedented success of
the commercialized LiCoO2 layered cathode in consumer electronics,
but it still faces the poor rate capability and cycling performance
because of its hexagonal layered α-NaFeO2 structure
and the high energy of electrochemically active crystal planes. In
a bid to address these problems, we report the delicate design and
synthesis of hierarchical fusiform LiCoO2 microrods constructed
by directionally assembled nanoplatelets along the [001] direction
via a self-template route (PAHF-LCO). Remarkably, it is the first
time that almost all the exposed surfaces of layered cathodes are
dominated by the consistent {010} facets, which enable the express
channels of Li+ diffusion to penetrate throughout the entire
fusiform microrods. The as-obtained PAHF-LCO cathode material delivers
specific capacities of 113 and 106 mA h g–1 at 10
and 20 C after 200 cycles, respectively. Even under the high rate
of 50 C, the discharge capacity initializes around 105 mA h g–1 and ends around 80 mA h g–1 after
200 cycles. The improvement mechanisms to the high-rate performance
through crystal habit tuning have also been unraveled. The enhanced
electrochemical performance can be attributed to the hierarchical
fusiform structure as well as the coordinated crystal orientation
of {010} facets.
CITE THIS COLLECTION
DataCite
3 Biotech
3D Printing in Medicine
3D Research
3D-Printed Materials and Systems
4OR
AAPG Bulletin
AAPS Open
AAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)
Academic Medicine
Academic Pediatrics
Academic Psychiatry
Academic Questions
Academy of Management Discoveries
Academy of Management Journal
Academy of Management Learning and Education
Academy of Management Perspectives
Academy of Management Proceedings
Academy of Management Review
Zhou, Shiyuan; Mei, Tao; Liu, Jiapeng; Wang, Xianbao; Qian, Yitai (2020). Hierarchical
Fusiform Microrods Constructed by Parallelly
Arranged Nanoplatelets of LiCoO2 Material with Ultrahigh
Rate Performance. ACS Publications. Collection. https://doi.org/10.1021/acsami.9b21526
or
Select your citation style and then place your mouse over the citation text to select it.
SHARE
Usage metrics
Read the peer-reviewed publication
AUTHORS (5)
SZ
Shiyuan Zhou
TM
Tao Mei
JL
Jiapeng Liu
XW
Xianbao Wang
YQ
Yitai Qian