Asset Details
Do you wish to reserve the book?
Improvement of electrochemical performance of LiNi0.5Co0.2Mn0.3O2 by LaF3 coating at high cut-off voltage
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Improvement of electrochemical performance of LiNi0.5Co0.2Mn0.3O2 by LaF3 coating at high cut-off voltage
Do you wish to request the book?
Improvement of electrochemical performance of LiNi0.5Co0.2Mn0.3O2 by LaF3 coating at high cut-off voltage
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Improvement of electrochemical performance of LiNi0.5Co0.2Mn0.3O2 by LaF3 coating at high cut-off voltage
2023
Overview
A simple wet chemical method was used to coat a layer of LaF
3
on the surface of LiNi
0.5
Co
0.2
Mn
0.3
O
2
(NCM523) to improve the electrochemical performance. Through the characterization of X-ray diffractometer (XRD), scanning electron microscope (SEM), X-ray energy dispersive spectrometer (EDS), and X-ray photoelectron spectroscopy (XPS), it can be seen that the LaF
3
coating can be uniformly coated on the surface of the material and will not change the crystal structure and micro-morphology of the material. In this work, the amount of LaF3 coating on the materials is 0.0 wt%, 0.5 wt%, 1.0 wt%, and 2.0 wt%, respectively. Under the condition of the optimum coating amount of 1 wt%, the rate performance and cycle performance of the coated material can be improved obviously. After 100 cycles at a high cut-off voltage of 4.6 V, the capacity retention of the 1 wt% LaF
3
coated material is 88.7%, which is higher than 80.4% of the bare material. And through EIS analysis, the coated material after 50 cycles still has excellent lithium ion diffusion kinetics. This may be due to the fact that an appropriate amount of LaF
3
coating can effectively avoid direct contact between cathode materials and electrolytes, inhibit the generation of oxygen vacancies, and reduce unnecessary side effects. This could provide a new idea for improving the electrochemical performance of LiNi
0.5
Co
0.2
Mn
0.3
O
2
at high cut-off voltage.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
