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Lee, J., Zhang, Q., Kim, J., Dupre, N., Avdeev, M., Jeong, M., Yoon, W.-S., Gu, L. & Kang, B. (2020) Controlled Atomic Solubility in Mn-Rich Composite Material to Achieve Superior Electrochemical Performance for Li-Ion Batteries. Adv. Energy Mater. 10 1902231. 
Added by: Richard Baschera (2020-01-10 16:18:13)   Last edited by: Richard Baschera (2020-04-24 08:33:05)
Type de référence: Article
DOI: 10.1002/aenm.201902231
Numéro d'identification (ISBN etc.): 1614-6832
Clé BibTeX: Lee2020
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Mots-clés: capacity cathode material, charge-compensation, electrode material, high energy density, high power density, layered oxide, limited atomic solubility, lini0.5mn1.5o4, Mn-rich composite materials, ni, spinel, spinel-layered composite compound, Stability, transformation, voltage
Créateurs: Avdeev, Dupre, Gu, Jeong, Kang, Kim, Lee, Yoon, Zhang
Collection: Adv. Energy Mater.
Consultations : 7/189
Indice de consultation : 2%
Indice de popularité : 0.5%
The quest for high energy density and high power density electrode materials for lithium-ion batteries has been intensified to meet strongly growing demand for powering electric vehicles. Conventional layered oxides such as Co-rich LiCoO2 and Ni-rich Li(NixMnyCoz)O-2 that rely on only transition metal redox reaction have been faced with growing constraints due to soaring price on cobalt. Therefore, Mn-rich electrode materials excluding cobalt would be desirable with respect to available resources and low cost. Here, the strategy of achieving both high energy density and high power density in Mn-rich electrode materials by controlling the solubility of atoms between phases in a composite is reported. The resulting Mn-rich material that is composed of defective spinel phase and partially cation-disordered layered phase can achieve the highest energy density, approximate to 1100 W h kg(-1) with superior power capability up to 10C rate (3 A g(-1)) among other reported Mn-rich materials. This approach provides new opportunities to design Mn-rich electrode materials that can achieve high energy density and high power density for Li-ion batteries.
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