High-Rate and Cycling-Stable Nickel-Rich Cathode Materials with Enhanced Li+ Diffusion Pathway

Jun Tian; Yuefeng Su; Feng Wu; Shaoyu Xu; Fen Chen; Renjie Chen; Qing Li; Jinghui Li; Fengchun Sun; Shi Chen

doi:10.1021/acsami.5b09641

High-Rate and Cycling-Stable Nickel-Rich Cathode Materials with Enhanced Li⁺ Diffusion Pathway

Jun Tian, Yuefeng Su^*, Feng Wu, Shaoyu Xu, Fen Chen, Renjie Chen, Qing Li, Jinghui Li, Fengchun Sun, Shi Chen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

118 Citations (Scopus)

Abstract

The nickel-rich LiNi_0.7Co_0.15Mn_0.15O₂ material was sintered by Li source with the Ni_0.7Co_0.15Mn_0.15(OH)₂ precursor, which was prepared via hydrothermal treatment after coprecipitation. The intensity ratio of I₍₁₁₀₎/I₍₁₀₈₎ obtained from X-ray diffraction patterns and high-resolution transmission electronmicroscopy confirm that the particles have enhanced growth of (110), (100), and (010) surface planes, which supply superior inherent Li⁺ deintercalation/intercalation. The electrochemical measurement shows that the LiNi_0.7Co_0.15Mn_0.15O₂ material has high cycling stability and rate capability, along with fast charge and discharge ability. Li⁺ diffusion coefficient at the oxidation peaks obtained by cyclic voltammogram measurement is as large as 10^-11 (cm² s^-1) orders of magnitude, implying that the nickel-rich material has high Li⁺ diffusion capability.

Original language	English
Pages (from-to)	582-587
Number of pages	6
Journal	ACS applied materials & interfaces
Volume	8
Issue number	1
DOIs	https://doi.org/10.1021/acsami.5b09641
Publication status	Published - 13 Jan 2016

Keywords

Li transportation
cycling stability
lithium-ion batteries
nickel-rich layered material
rate capability

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsami.5b09641

Cite this

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title = "High-Rate and Cycling-Stable Nickel-Rich Cathode Materials with Enhanced Li+ Diffusion Pathway",

abstract = "The nickel-rich LiNi0.7Co0.15Mn0.15O2 material was sintered by Li source with the Ni0.7Co0.15Mn0.15(OH)2 precursor, which was prepared via hydrothermal treatment after coprecipitation. The intensity ratio of I(110)/I(108) obtained from X-ray diffraction patterns and high-resolution transmission electronmicroscopy confirm that the particles have enhanced growth of (110), (100), and (010) surface planes, which supply superior inherent Li+ deintercalation/intercalation. The electrochemical measurement shows that the LiNi0.7Co0.15Mn0.15O2 material has high cycling stability and rate capability, along with fast charge and discharge ability. Li+ diffusion coefficient at the oxidation peaks obtained by cyclic voltammogram measurement is as large as 10-11 (cm2 s-1) orders of magnitude, implying that the nickel-rich material has high Li+ diffusion capability.",

keywords = "Li transportation, cycling stability, lithium-ion batteries, nickel-rich layered material, rate capability",

author = "Jun Tian and Yuefeng Su and Feng Wu and Shaoyu Xu and Fen Chen and Renjie Chen and Qing Li and Jinghui Li and Fengchun Sun and Shi Chen",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2016",

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doi = "10.1021/acsami.5b09641",

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T1 - High-Rate and Cycling-Stable Nickel-Rich Cathode Materials with Enhanced Li+ Diffusion Pathway

AU - Tian, Jun

AU - Su, Yuefeng

AU - Wu, Feng

AU - Xu, Shaoyu

AU - Chen, Fen

AU - Chen, Renjie

AU - Li, Qing

AU - Li, Jinghui

AU - Sun, Fengchun

AU - Chen, Shi

PY - 2016/1/13

Y1 - 2016/1/13

N2 - The nickel-rich LiNi0.7Co0.15Mn0.15O2 material was sintered by Li source with the Ni0.7Co0.15Mn0.15(OH)2 precursor, which was prepared via hydrothermal treatment after coprecipitation. The intensity ratio of I(110)/I(108) obtained from X-ray diffraction patterns and high-resolution transmission electronmicroscopy confirm that the particles have enhanced growth of (110), (100), and (010) surface planes, which supply superior inherent Li+ deintercalation/intercalation. The electrochemical measurement shows that the LiNi0.7Co0.15Mn0.15O2 material has high cycling stability and rate capability, along with fast charge and discharge ability. Li+ diffusion coefficient at the oxidation peaks obtained by cyclic voltammogram measurement is as large as 10-11 (cm2 s-1) orders of magnitude, implying that the nickel-rich material has high Li+ diffusion capability.

AB - The nickel-rich LiNi0.7Co0.15Mn0.15O2 material was sintered by Li source with the Ni0.7Co0.15Mn0.15(OH)2 precursor, which was prepared via hydrothermal treatment after coprecipitation. The intensity ratio of I(110)/I(108) obtained from X-ray diffraction patterns and high-resolution transmission electronmicroscopy confirm that the particles have enhanced growth of (110), (100), and (010) surface planes, which supply superior inherent Li+ deintercalation/intercalation. The electrochemical measurement shows that the LiNi0.7Co0.15Mn0.15O2 material has high cycling stability and rate capability, along with fast charge and discharge ability. Li+ diffusion coefficient at the oxidation peaks obtained by cyclic voltammogram measurement is as large as 10-11 (cm2 s-1) orders of magnitude, implying that the nickel-rich material has high Li+ diffusion capability.

KW - Li transportation

KW - cycling stability

KW - lithium-ion batteries

KW - nickel-rich layered material

KW - rate capability

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