S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
Electrodes with high power and high capacity for rechargeable lithium batteries
- Kang, Kisuk; Meng, Ying Shirley; Breger, Julien; Grey, Clare P; Ceder, Gerbrand
- Issue Date
- Science, Vol.311 No.5763, pp.977-980
- New applications such as hybrid electric vehicles and power backup require rechargeable batteries that combine high energy density with high charge and discharge rate capability. Using ab initio computational modeling, we identified useful strategies to design higher rate battery electrodes and tested them on lithium nickel manganese oxide [Li(Ni0.5Mn0.5)O-2], a safe, inexpensive material that has been thought to have poor intrinsic rate capability. By modifying its crystal structure, we obtained unexpectedly high rate-capability, considerably better than lithium cobalt oxide (LiCoO2), the current battery electrode material of choice.
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