Improvement of 12 V overcharge behavior of LiCoO2 cathode material by LiNi0.8Co0.1Mn0.1O2 addition in a Li-ion cell
| Autor: | Jaephil Cho, Jisuk Kim, Mijung Noh |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Overcharge
Thermal runaway Renewable Energy Sustainability and the Environment Chemistry Inorganic chemistry Energy Engineering and Power Technology Instability Cathode Lithium battery law.invention Ion Chemical engineering law Cathode material Electrical and Electronic Engineering Physical and Theoretical Chemistry |
| Zdroj: | Journal of Power Sources. 153:345-349 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2005.05.035 |
| Popis: | The 12 V overcharge instability of the LiCoO2 cathode material was improved by the physical blending it with LiNi0.8Co0.1Mn0.1O2. Even though a Li-ion cell containing a LiCoO2 cathode did not exhibit thermal runaway at 12 V at the 1 C overcharging rate, it showed thermal runaway at the 2 C overcharging rate, and the cell surface temperature reached more than 400 °C. However, the LiCoO2 cell containing 40, 50, and 60 wt.% LiNi0.8Co0.1Mn0.1O2 did not exhibit thermal runaway at the 2 C overcharging rate. In conclusion, 60 wt.% LiNi0.8Co0.1Mn0.1O2 in the LiCoO2 cathode showed the lowest cell surface temperature of |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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