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Cho, Jaephil
Nano Energy Storage Materials Lab (NESM)
Research Interests
  • Li-ion battery, metal-air battery, redox-flow battery, flexible battery .

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High power LiCoO2 cathode materials with ultra energy density for Li-ion cells

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Title
High power LiCoO2 cathode materials with ultra energy density for Li-ion cells
Author
Jo, MinkiJeong, SookyungCho, Jaephil
Keywords
Energy density; High-power; Li-Ion cells; LiCoO2; Rate capabilities
Issue Date
201007
Publisher
ELSEVIER SCIENCE INC
Citation
ELECTROCHEMISTRY COMMUNICATIONS, v.12, no.7, pp.992 - 995
Abstract
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.
URI
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DOI
http://dx.doi.org/10.1016/j.elecom.2010.05.010
ISSN
1388-2481
Appears in Collections:
ECHE_Journal Papers

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