Electrochemical studies on mixtures of LiNi0.8Co0.17Al0.03O2 and LiCoO2 cathode materials for lithium ion batteries |
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| Authors: | CH Lin AAM Prince RS Liu |
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| Institution: | a SYNergy Scien Tech Corporation, Science-based Industrial Park, Hsinchu 300, Taiwan, ROC
b Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, ROC |
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| Abstract: | Detailed electrochemical investigations have been carried out on LiNi0.8Co0.17Al0.03O2 as cathode materials for lithium ion batteries in the potential range of 2.8-4.3 V. This sample showed an initial discharge capacity of 186 mAh/g which corresponds to 67% of its theoretical capacity. The effect of addition of LiCoO2 to LiNi0.8Co0.17Al0.03O2 in the ratio 10:90, 30:70, 50:50 has been studied. The results showed that the addition of LiCoO2 has improved the working voltage of the cell. In addition, the percentage retention (95%) of the cell is significantly increased in the composition ratio 50:50. |
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| Keywords: | 82 47 Aa 52 80 &minus s |
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