Hierarchical porous LiNi₁⁄₃Co₁⁄₃Mn₁⁄₃O₂ with yolk–shell-like architecture as stable cathode material for lithium-ion batteries

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dc.contributor.authorChen, Z.
dc.contributor.authorChao, D.
dc.contributor.authorChen, M.
dc.contributor.authorShen, Z.
dc.date.issued2020
dc.description.abstractThe 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.
dc.description.statementofresponsibilityZhen Chen, Dongliang Chao, Minghua Chen and Zexiang Shen
dc.identifier.citationRSC Advances, 2020; 10(32):18776-18783
dc.identifier.doi10.1039/d0ra03022h
dc.identifier.issn2046-2069
dc.identifier.issn2046-2069
dc.identifier.orcidChao, D. [0000-0001-7793-0044]
dc.identifier.urihttp://hdl.handle.net/2440/128296
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.rightsThis journal is © The Royal Society of Chemistry 2020
dc.source.urihttps://doi.org/10.1039/d0ra03022h
dc.titleHierarchical porous LiNi₁⁄₃Co₁⁄₃Mn₁⁄₃O₂ with yolk–shell-like architecture as stable cathode material for lithium-ion batteries
dc.title.alternativeHierarchical porous LiNi(1)/(3)Co(1)/(3)Mn(1)/(3)O(2) with yolk-shell-like architecture as stable cathode material for lithium-ion batteries
dc.typeJournal article
pubs.publication-statusPublished

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