This work investigates the relationship between the particle morphology and electrochemical properties of LiNi_1/3Co_1/3Mn_1/3O₂ (NCM), a promising positive electrode material for high-power batteries. Consequently, four NCM particles with different morphologies (small octahedral, large octahedral, small plate-like, and large plate-like) were synthesized by the flux method. The electrochemical measurements revealed that the NCM particles with smaller particle sizes exhibited larger reversible capacities and better rate capabilities than the larger ones. On the other hand, the particle shape did not significantly affect the electrochemical properties. It was thus concluded that the electrochemical properties are more significantly affected by the particle size rather than its shape. The obtained correlation can thus help in establishing guidelines for the control of the particle morphology while designing high-power electrode materials.

中文翻译：

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助熔剂法生长LiNi1/3Co1/3Mn1/3O2单晶及其电化学性能

_{这项工作研究了LiNi 1/3} Co 1/3 Mn _1/3 O ₂ (NCM)的颗粒形态和电化学性能之间的关系，LiNi 1/3 Co _1/3 Mn 1/3 O 2 (NCM)是一种有前途的高功率电池正极材料。因此，通过通量法合成了四种不同形貌的NCM颗粒（小八面体、大八面体、小板状和大板状）。电化学测量表明，较小粒径的NCM颗粒比较大颗粒表现出更大的可逆容量和更好的倍率性能。另一方面，颗粒形状并没有显着影响电化学性能。由此得出的结论是，电化学性能更受颗粒尺寸的影响，而不是其形状的影响。因此，所获得的相关性有助于在设计高功率电极材料时建立颗粒形态控制指南。