Abstract
The capacity fading of LiMn2O4 is improved by adding amphoteric oxides such as Al2O3, ZnO, SnO2, and ZrO2 to the cathode slurry. The effectiveness of the amphoteric oxides on the fade resistance of LiMn2O4 is compared by measuring the capability of scavenging hydrofluoric acid (HF) in the electrolyte by the oxides using a pH meter and by BET surface analysis. Results suggest that the capacity fading is determined by the reactivity of oxides with HF and the effective surface-area of the oxide particles when they were mixed in the slurry. Zinc oxide is the most effective of the oxides in scavenging HF.
| Original language | English |
|---|---|
| Pages (from-to) | 597-601 |
| Number of pages | 5 |
| Journal | Journal of Power Sources |
| Volume | 180 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 May 15 |
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Keywords
- Amphoteric oxide
- Capacity fading hydrofluoric acid scavenging
- Coating
- LiMnO
- Lithium-ion battery
ASJC Scopus subject areas
- Electrochemistry
- Fuel Technology
- Materials Chemistry
- Energy (miscellaneous)
Cite this
Improvement of capacity fading resistance of LiMn2O4 by amphoteric oxides. / Park, Sung Bin; Shin, Ho Chul; Lee, Wan Gyu; Cho, Won Il; Jang, Ho.
In: Journal of Power Sources, Vol. 180, No. 1, 15.05.2008, p. 597-601.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Improvement of capacity fading resistance of LiMn2O4 by amphoteric oxides
AU - Park, Sung Bin
AU - Shin, Ho Chul
AU - Lee, Wan Gyu
AU - Cho, Won Il
AU - Jang, Ho
PY - 2008/5/15
Y1 - 2008/5/15
N2 - The capacity fading of LiMn2O4 is improved by adding amphoteric oxides such as Al2O3, ZnO, SnO2, and ZrO2 to the cathode slurry. The effectiveness of the amphoteric oxides on the fade resistance of LiMn2O4 is compared by measuring the capability of scavenging hydrofluoric acid (HF) in the electrolyte by the oxides using a pH meter and by BET surface analysis. Results suggest that the capacity fading is determined by the reactivity of oxides with HF and the effective surface-area of the oxide particles when they were mixed in the slurry. Zinc oxide is the most effective of the oxides in scavenging HF.
AB - The capacity fading of LiMn2O4 is improved by adding amphoteric oxides such as Al2O3, ZnO, SnO2, and ZrO2 to the cathode slurry. The effectiveness of the amphoteric oxides on the fade resistance of LiMn2O4 is compared by measuring the capability of scavenging hydrofluoric acid (HF) in the electrolyte by the oxides using a pH meter and by BET surface analysis. Results suggest that the capacity fading is determined by the reactivity of oxides with HF and the effective surface-area of the oxide particles when they were mixed in the slurry. Zinc oxide is the most effective of the oxides in scavenging HF.
KW - Amphoteric oxide
KW - Capacity fading hydrofluoric acid scavenging
KW - Coating
KW - LiMnO
KW - Lithium-ion battery
UR - http://www.scopus.com/inward/record.url?scp=41949128817&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=41949128817&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2008.01.051
DO - 10.1016/j.jpowsour.2008.01.051
M3 - Article
VL - 180
SP - 597
EP - 601
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
IS - 1
ER -