Chen, Z.Chao, D.Chen, M.Shen, Z.2020-09-302020-09-302020RSC Advances, 2020; 10(32):18776-187832046-20692046-2069http://hdl.handle.net/2440/128296The relatively sluggish lithium ion diffusion of LiNi₁⁄₃Co₁⁄₃Mn₁⁄₃O₂ (NCM) is one of the fatal factors which can significantly prevent its widespread usage in high-power applications. In this work, the monodispersed hierarchical porous yolk–shell-like LiNi₁⁄₃Co₁⁄₃Mn₁⁄₃O₂ (YS-NCM) with exposure to {010} electrochemical active facets was successfully synthesized, aiming to elevate the lithium ion diffusion ability and thus to enhance the electrochemical performance. The hierarchical porous nano-/microsphere morphology as well as the voids between the yolk and the shell allow for shortened Li⁺ diffusion pathways, leading to improved Li⁺ diffusion capability. These voids are also beneficial for providing more buffers for the volume changes during repeated charge and discharge. Additionally, the exposure of {010} electrochemical active facets provides more open structure for unimpeded Li⁺ migration. Therefore, by this design strategy, the lithium ion transport kinetics is greatly improved, yielding superior electrochemical performances. When examined as the cathode material for lithium-ion batteries (LIBs), the YS-NCM-based cells have achieved superior rate capability and stable cycling performance, rendering it as a promising cathode candidate for practical lithium-ion battery applications.enThis journal is © The Royal Society of Chemistry 2020Journal article100002229710.1039/d0ra03022h0005367054000272-s2.0-85085734519535985Chao, D. [0000-0001-7793-0044]