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- Cho, Jaephil
- Nano Energy Storage Material Lab.
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Enhanced structural stability of o-LiMnO2 by sol-gel coating of Al2O3
- Author(s)
- Cho, Jaephil, Kim, YJ, Kim, TJ, Park, B
- Issued Date
- 2001-01
- Citation
- CHEMISTRY OF MATERIALS, v.13, no.1, pp.18 - 20
- Abstract
- Sol-gel coating of Al2O3 and subsequent heat-treatment at 400 degreesC greatly improved structural instability of orthohombic LiMnO2 during electrochemical cycling at 55 degreesC. The coated electrode showed only 2% capacity loss after 50 cycles, which was superior to that of the bare one (35% loss) in its capacity stability. This was attributed to the formation of a protective coating layer, consisting of LiMn1-xAlxO2, only at the particle surface.
- Publisher
- AMER CHEMICAL SOC
- ISSN
- 0897-4756
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