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Prospect and Reality of Ni-Rich Cathode for Commercialization

机译：富镍阴极商业化的前景与现实

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摘要

The layered nickel-rich cathode materials are considered as promising cathode materials for lithium-ion batteries (LIBs) due to their high reversible capacity and low cost. However, several significant challenges, such as the unstable powder properties and limited electrode density, hindered the practical application of the nickel-rich cathode materials with the nickel content over 80%. Herein, important stability issues and in-depth understanding of the nickel-rich cathode materials on the basis of the industrial electrode fabrication condition for the commercialization of the nickel-rich cathode materials are reviewed. A variety of factors threatening the battery safety such as the powder properties, thermal/structural stability are systemically investigated from a material point of view. Furthermore, recent efforts for enhancing the electrochemical stability of the nickel-rich cathode materials are summarized. More importantly, critical key parameters that should be considered for the high energy LIBs at an electrode level are intensively addressed for the first time. Current electrode fabrication condition has a difficulty in increasing the energy density of the battery. Finally, light is shed on the perspectives for the future research direction of the nickel-rich cathode materials with its technical challenges in current state by the practical aspect.
机译：层状富镍正极材料由于其高可逆容量和低成本而被认为是锂离子电池（LIB）的有前途的正极材料。但是，一些重大挑战，例如不稳定的粉末性能和有限的电极密度，阻碍了镍含量超过80％的富镍阴极材料的实际应用。在此，综述了重要的稳定性问题以及基于用于富镍阴极材料的商业化的工业电极制造条件对富镍阴极材料的深入理解。从材料的角度系统地研究了各种威胁电池安全的因素，例如粉末性质，热/结构稳定性。此外，总结了最近的用于增强富镍阴极材料的电化学稳定性的努力。更重要的是，首次集中讨论了针对电极级高能LIB应考虑的关键关键参数。当前的电极制造条件难以增加电池的能量密度。最后，从实践的角度出发，对富镍正极材料的未来研究方向进行了展望，并提出了当前状态下的技术挑战。

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