skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Study of the Jahn-Teller distortion in LiNiO{sub 2}, a cathode material in a rechargeable lithium battery, by in situ X-ray absorption fine structure analysis

Abstract

Structural changes accompanying the electrochemical Li deintercalation of Li{sub 1{minus}x}NiO{sub 2} and Li{sub 1{minus}x}CoO{sub 2} were studied by the transmission X-ray absorption fine structure (XAFS) technique using an in situ X-ray cell of original design. The results revealed that the Jahn-Teller distortion of the Ni-O octahedra found in LiNiO{sub 2} decreased as the Li ion was removed from the cathode. The observed X-ray absorption near-edge structures (XANES) of Li{sub 1{minus}x}NiO{sub 2} and Li{sub 1{minus}x}CoO{sub 2} as a function of x are consistent with the phase transitions found by powder-diffraction studies. The Ni-O, Co-O, and Ni-Ni interatomic distances decreased almost linearly as the Li content decreased to x = 0.8, while the Co-Co distance slightly decreased to x = 0.5 and increased up to x = 0.8. The local distortion of NiO{sub 6} octahedra also decrease with increasing y in a Li(Ni{sub 1{minus}y}, Co{sub y}){sub 2} solid solution.

Authors:
; ; ;  [1];  [2]
  1. Science Univ. of Tokyo, Shinjuku, Tokyo (Japan). Dept. of Applied Chemistry
  2. Asahi Chemical Industry, Ltd., Kawasaki, Kanagawa (Japan). Battery Development Lab.
Publication Date:
OSTI Identifier:
305396
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 140; Journal Issue: 1; Other Information: PBD: Oct 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; CRYSTAL STRUCTURE; LITHIUM OXIDES; NICKEL OXIDES; ELECTRIC BATTERIES; CATHODES; JAHN-TELLER EFFECT; CHEMICAL COMPOSITION; FOURIER ANALYSIS; EXPERIMENTAL DATA

Citation Formats

Nakai, Izumi, Takahashi, Kouta, Shiraishi, Youhei, Nakagome, Tatsuji, and Nishikawa, Fumishige. Study of the Jahn-Teller distortion in LiNiO{sub 2}, a cathode material in a rechargeable lithium battery, by in situ X-ray absorption fine structure analysis. United States: N. p., 1998. Web. doi:10.1006/jssc.1998.7943.
Nakai, Izumi, Takahashi, Kouta, Shiraishi, Youhei, Nakagome, Tatsuji, & Nishikawa, Fumishige. Study of the Jahn-Teller distortion in LiNiO{sub 2}, a cathode material in a rechargeable lithium battery, by in situ X-ray absorption fine structure analysis. United States. doi:10.1006/jssc.1998.7943.
Nakai, Izumi, Takahashi, Kouta, Shiraishi, Youhei, Nakagome, Tatsuji, and Nishikawa, Fumishige. Thu . "Study of the Jahn-Teller distortion in LiNiO{sub 2}, a cathode material in a rechargeable lithium battery, by in situ X-ray absorption fine structure analysis". United States. doi:10.1006/jssc.1998.7943.
@article{osti_305396,
title = {Study of the Jahn-Teller distortion in LiNiO{sub 2}, a cathode material in a rechargeable lithium battery, by in situ X-ray absorption fine structure analysis},
author = {Nakai, Izumi and Takahashi, Kouta and Shiraishi, Youhei and Nakagome, Tatsuji and Nishikawa, Fumishige},
abstractNote = {Structural changes accompanying the electrochemical Li deintercalation of Li{sub 1{minus}x}NiO{sub 2} and Li{sub 1{minus}x}CoO{sub 2} were studied by the transmission X-ray absorption fine structure (XAFS) technique using an in situ X-ray cell of original design. The results revealed that the Jahn-Teller distortion of the Ni-O octahedra found in LiNiO{sub 2} decreased as the Li ion was removed from the cathode. The observed X-ray absorption near-edge structures (XANES) of Li{sub 1{minus}x}NiO{sub 2} and Li{sub 1{minus}x}CoO{sub 2} as a function of x are consistent with the phase transitions found by powder-diffraction studies. The Ni-O, Co-O, and Ni-Ni interatomic distances decreased almost linearly as the Li content decreased to x = 0.8, while the Co-Co distance slightly decreased to x = 0.5 and increased up to x = 0.8. The local distortion of NiO{sub 6} octahedra also decrease with increasing y in a Li(Ni{sub 1{minus}y}, Co{sub y}){sub 2} solid solution.},
doi = {10.1006/jssc.1998.7943},
journal = {Journal of Solid State Chemistry},
number = 1,
volume = 140,
place = {United States},
year = {1998},
month = {10}
}