Paper Title:
LiNiO2 Thin Films Fabricated by Diffusion of Li on Ni Tapes
  Abstract

LiNiO2 thin films for the application of cathode of the rechargeable battery were fabricated by Li ion diffusion on the surface oxidized NiO layer. Bi-axially textured Ni-tapes with 50 ~ 80 μm thickness were fabricated using cold rolling and annealing of Ni-rod prepared by cold isostatic pressing of Ni powder. Surface oxidation of Ni-tapes were conducted using tube furnace or line-focused infrared heater at 700 °C for 150 sec in flowing oxygen atmosphere, resulted in NiO layer with thickness of 400 and 800 μm, respectively. After Li was deposited on the NiO layer by thermal evaporation, LiNiO2 was formed by Li diffusion through the NiO layer during subsequent heat treatment using IR heater with various heat treatment conditions. IR-heating resulted in the smoother surface and finer grain size of NiO and LiNiO2 layer compared to the tube-furnace heating. The average grain size of LiNiO2 layer was 0.5~1 μm, which is much smaller than that of sol-gel processed LiNiO2. The reacted LiNiO2 region showed homogeneous composition throughout the thickness and did not show any noticeable defects frequently found in the solid state reacted LiNiO2, but crack and delamination between the reacted LiNiO2 and Ni occurred as the reaction time increased above 4hrs.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
505-508
DOI
10.4028/www.scientific.net/KEM.336-338.505
Citation
C. J. Kim, I. S. Ahn, K. K. Cho, S. G. Lee, J. K. Chung, "LiNiO2 Thin Films Fabricated by Diffusion of Li on Ni Tapes", Key Engineering Materials, Vols. 336-338, pp. 505-508, 2007
Online since
April 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dong Young Sung, In Soo Kim, Min Gu Lee, No Jin Park, Bee Lyong Yang, Jun Mo Yang, Jung Kyu Ko
Abstract:TiN thin films are widely used as a coating material due to their good mechanical and conductivity properties, high thermal properties,...
1371
Authors: Haruki Ryoken, Isao Sakaguchi, Naoki Ohashi, Yutaka Adachi, Takeshi Ohgaki, Shunichi Hishita, Hajime Haneda
Abstract:The defect structure of undoped ZnO and (Zn1-x,Mgx)O solid-solution films were deposited on YSZ substrate with pulsed laser deposition (PLD)...
103
Authors: In Sup Lee, Yong Ho Park, Ik Min Park
Abstract:Plasma radical nitriding has been performed to harden the surface of SKD 61 steel for 1- 10 hours at temperature range of 450-550°C. A NH...
155
Authors: Boris A. Gizhevskii, Anatoly Yakovlevich Fishman, E.A. Kozlov, Tatiana Eugenievna Kurennykh, S.A. Petrova, I.Sh. Trakhtenberg, Vladimir Borisovich Vykhodets, V.B. Vykhodets, Robert Grigorievich Zakharov
Abstract:The kinetics of the isotope exchange between gaseous oxygen enriched with the 18O isotope and two LaMnO3+δ oxide samples – a nanopowder and...
233
Authors: Yan Wu, Yan Lu, Xiang Zhao, Liang Zuo
Abstract:The effect of magnetic field on diffusion behavior of carbon in pure iron was investigated. The results showed that the magnetic field can...
67