Compton scattering study of strong orbital delocalization in a LiNiO<sub>2</sub> cathode
Year of publication
2024
Authors
Kothalawala, Veenavee Nipunika; Suzuki, Kosuke; Nokelainen, Johannes; Hyvönen, Arttu; Makkonen, Ilja; Barbiellini, Bernardo; Hafiz, Hasnain; Tynjälä, Pekka; Laine, Petteri; Välikangas, Juho; Hu, Tao; Lassi, Ulla; Takano, Kodai; Tsuji, Naruki; Amada, Yosuke; Devi, Assa Aravindh Sasikala; Alatalo, Matti; Sakurai, Yoshiharu; Sakurai, Hiroshi; Bansil, Arun
Show moreAbstract
Cobalt is used in Li-ion batteries, but it is expensive and could be replaced by nickel to deliver better performance at a lower cost. With this motivation, we discuss how the character of redox orbitals of LiNiO2 can be ascertained through x-ray Compton scattering measurements combined with parallel first-principles simulations. Our analysis reveals the nature of hole states in Li-doped NiO resulting from the hybridization of O 2p and Ni 3d orbitals. Our study also gives insight into the ferromagnetic ground state and provides a pathway toward the rational design of next-generation battery materials.
Show moreOrganizations and authors
University of Helsinki
Makkonen Ilja
Publication type
Publication format
Article
Parent publication type
Journal
Article type
Original article
Audience
ScientificPeer-reviewed
Peer-ReviewedMINEDU's publication type classification code
A1 Journal article (refereed), original researchPublication channel information
Journal
Parent publication name
Publisher
Volume
109
Issue
3
Article number
035139
ISSN
Publication forum
Publication forum level
2
Open access
Open access in the publisher’s service
No
Self-archived
Yes
License of the self-archived publication
Muu lisenssi
Other information
Fields of science
Physical sciences; Chemical sciences; Materials engineering; Nanotechnology
Internationality of the publisher
International
Language
English
International co-publication
Yes
Co-publication with a company
No
DOI
10.1103/physrevb.109.035139
The publication is included in the Ministry of Education and Culture’s Publication data collection
Yes