High power LiCoO2 cathode materials with ultra energy density for Li-ion cells
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- High power LiCoO2 cathode materials with ultra energy density for Li-ion cells
- Jo, Minki; Jeong, Sookyung; Cho, Jaephil
- Energy density; High-power; Li-Ion cells; LiCoO2; Rate capabilities
- Issue Date
- ELSEVIER SCIENCE INC
- ELECTROCHEMISTRY COMMUNICATIONS, v.12, no.7, pp.992 - 995
- Hydrothermally prepared 100 nm-sized LiCoO2 with a plate morphology packed in a crucible resulted in 40 mu m-sized particles that consisted of aggregated <1 micron-sized particles after annealing at 900 degrees C for 3 h. In the condition where the optimized electrode pore volume was 20%, 4.1 g/cc of electrode density was obtained, which corresponded to 3 Wh/cc, which is the highest value among the cathode materials. Furthermore, the LiCoO2 showed excellent capacity retention of 78% after 290 cycles in a Li-ion cell under 7 C rate cycling.
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