Journal
ACS ENERGY LETTERS
Volume 4, Issue 2, Pages 508-516Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.8b02302
Keywords
-
Categories
Funding
- Freiberger Compound Materials GmbH
- Federmann Enterprises Ltd.
- Federmann-Scholarship
- BASF
- Israeli Prime Minister's Office
- Israeli Committee for Higher Education within the framework of the INREP project
Ask authors/readers for more resources
Ni-rich materials of layered structure LiNixCoyMnzO2 , x > 0.5, are promising candidates as cathodes in high-energy-density Li-ion batteries for electric vehicles. The structural and cycling stability of Ni-rich cathodes can be remarkably improved by doping with a small amount of extrinsic multivalent cations. In this study, we examine development of a fast screening methodology for doping LiNi0.8Co0.1Mn0.1O2 with cations Mg2+, A(13+), Si4+, Ti4+, zr(4+), and Ta5+ by a top-down approach. The cathode material is coated by a precursor layer that contains the dopant, which then is introduced into the particles by diffusion during heat treatment at elevated temperatures. The methodology described herein can be applied to Ni-rich cathode materials and allows relatively easy and prompt identification of the most promising dopants. Then further optimization work can lead to development of high-capacity stable cathode materials. The present study marks Ta5+ cations as very promising dopants for Ni-rich NCM cathodes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available