Li‐ and Mn‐Rich Cathode Materials: Challenges to Commercialization |
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| Authors: | Jianming Zheng Seungjun Myeong Woongrae Cho Pengfei Yan Jie Xiao Chongmin Wang Jaephil Cho Ji‐Guang Zhang |
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| Affiliation: | 1. Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, WA, USA;2. School of Energy and Chemical Engineering, Green Energy Materials Development Center, Ulsan National Institute of Science and Technology (UNIST), Korea;3. Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA |
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| Abstract: | The lithium‐ and manganese‐rich (LMR) layered structure cathodes exhibit one of the highest specific energies (≈900 W h kg?1) among all the cathode materials. However, the practical applications of LMR cathodes are still hindered by several significant challenges, including voltage fade, large initial capacity loss, poor rate capability and limited cycle life. Herein, we review the recent progress and in depth understandings on the application of LMR cathode materials from a practical point of view. Several key parameters of LMR cathodes that affect the LMR/graphite full‐cell operation are systematically analyzed. These factors include the first‐cycle capacity loss, voltage fade, powder tap density, and electrode density. New approaches to minimize the detrimental effects of these factors are highlighted in this work. We also provide perspectives for the future research on LMR cathode materials, focusing on addressing the fundamental problems of LMR cathodes while keeping practical considerations in mind. |
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| Keywords: | Li‐ and Mn‐rich cathode doping/coating full cells initial capacity loss rate capability voltage fade |
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