LiMnPO4 surface coating on LiNi0.5Co0.2Mn0.3O2 by a simple sol-gel method and improving electrochemical properties

LiMnPO4 surface coating on LiNi0.5Co0.2Mn0.3O2 by a simple sol-gel method and improving... Recently, cathode materials based on LiNi0.5Co0.2Mn0.3O2 are being widely investigated for application in lithium ion batteries (LIB). However, the cycle performance of this material needs to be enhanced. The surface coating modification is a feasible option to further improve the electrochemical properties of the material. In this paper, a simple sol-gel method was used to prepare a LiMnPO4 (LMP) coating with a thickness of about 25 nm on the surface of LiNi0.5Co0.2Mn0.3O2 (denoted as NCM523-LMP). As a cathode material for lithium ion batteries, NCM523 coated with 3 wt% LMP showed good cycle performance as well as improved thermal stability. The coated sample exhibited improved cycle stability (200 cycles, 136.8 mAh g−1) and high temperature cycle performance (55 °C, 200 cycles, and 125.2 mAh g−1). This significant enhancement can be attributed to the strengthening of surface structure and effective isolation from harmful side reactions between the material and electrolyte. The LMP coating modified NCM523 shows potential as a high-performance cathode material for LIB. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Solid State Ionics Elsevier

LiMnPO4 surface coating on LiNi0.5Co0.2Mn0.3O2 by a simple sol-gel method and improving electrochemical properties

Loading next page...
 
/lp/elsevier/limnpo4-surface-coating-on-lini0-5co0-2mn0-3o2-by-a-simple-sol-gel-DWyh6rJLIV
Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier B.V.
ISSN
0167-2738
eISSN
1872-7689
D.O.I.
10.1016/j.ssi.2018.01.018
Publisher site
See Article on Publisher Site

Abstract

Recently, cathode materials based on LiNi0.5Co0.2Mn0.3O2 are being widely investigated for application in lithium ion batteries (LIB). However, the cycle performance of this material needs to be enhanced. The surface coating modification is a feasible option to further improve the electrochemical properties of the material. In this paper, a simple sol-gel method was used to prepare a LiMnPO4 (LMP) coating with a thickness of about 25 nm on the surface of LiNi0.5Co0.2Mn0.3O2 (denoted as NCM523-LMP). As a cathode material for lithium ion batteries, NCM523 coated with 3 wt% LMP showed good cycle performance as well as improved thermal stability. The coated sample exhibited improved cycle stability (200 cycles, 136.8 mAh g−1) and high temperature cycle performance (55 °C, 200 cycles, and 125.2 mAh g−1). This significant enhancement can be attributed to the strengthening of surface structure and effective isolation from harmful side reactions between the material and electrolyte. The LMP coating modified NCM523 shows potential as a high-performance cathode material for LIB.

Journal

Solid State IonicsElsevier

Published: Apr 1, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from Google Scholar, PubMed
Create lists to organize your research
Export lists, citations
Access to DeepDyve database
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off