Detailed Information

Cited 0 time in webofscience Cited 3 time in scopus
Metadata Downloads

Synthesis of LixNi0.85Co0.15O2 by the PVA-precursor method and the effect of air flow during the pyrolysis

Authors
Kweon, HJKim, GBKim, SJSong, MYPark, SHKwon, HYPark, DG
Issue Date
Oct-1999
Publisher
KOREAN CHEMICAL SOC
Keywords
ENGL
Citation
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.20, no.5, pp 508 - 516
Pages
9
Journal Title
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
Volume
20
Number
5
Start Page
508
End Page
516
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/16842
DOI
10.5012/bkcs.1999.20.5.508
ISSN
0253-2964
1229-5949
Abstract
Polycrystalline powder of LixNi0.85Co0.15O2 was synthesized by pyrolyzing a powder precursor obtained by the PVA-precursor method. Coin cells of lithium-ion rechargeable battery were assembled, whose the cathodes were fabricated from the crystalline powders of LixNi0.85Co0.15O2 synthesized by the method. The effect of synthetic variation on the property of the cell was tested by carrying out 100 consecutive cycles of charge-discharge on the cells. The property of the cell was largely influenced by the pyrolysis conditions applied for the synthesis of the LixNi0.85Co0.15O2. Depending on whether the pyrolysis was carried out in standing air or in the flow of dry air, the discharge capacity and cycle-reversibility of the cell varied in large extent. When the powder precursor was pyrolyzed in standing air, a minor phase of lithium carbonate was remained in the LixNi0.85Co0.15O2. The carbon containing powder precursor had to be pyrolyzed in the Row of dry air to eliminate the minor phase. In the flow of dry air, the lithium carbonate in the precursor was eliminated over 500 similar to 700 degrees C without any prominent heat event. By controlling the flow of air over the precursor during its pyrolysis, particle size could also be altered. The effect of flowing dry air, during first step pyrolysis or during second step heat treatment, on the property of the cell was discussed.
Files in This Item
Go to Link
Appears in
Collections
이과대학 > 화학과 > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Park, Dong Gon photo

Park, Dong Gon
이과대학 (화학과)
Read more

Altmetrics

Total Views & Downloads

BROWSE