Synthesis of Ni-Rich Layered-Oxide Nanomaterials with Enhanced Li-Ion Diffusion Pathways as High-Rate Cathodes for Li-Ion Batteries

被引：49

作者：

Jiang, Ming ^{[1
,2
]}

Zhang, Qian ^{[2
,4
]}

Wu, Xiaochao ^{[2
,5
]}

Chen, Zhiqiang ^{[1
,2
]}

Danilov, Dmitri L. ^{[1
,2
]}

Eichel, Ruediger-A ^{[2
,4
]}

Notten, Peter H. L. ^{[1
,2
,3
]}

机构：

[1] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands

[2] Forschungszentrum Julich, IEK 9, D-52425 Julich, Germany

[3] Univ Technol Sydney, Sydney, NSW 2007, Australia

[4] Rhein Westfal TH Aachen, D-52074 Aachen, Germany

[5] Polymer Technol Grp Eindhoven PTG E BV, Eindhoven, Netherlands

来源：

ACS APPLIED ENERGY MATERIALS | 2020年 / 3卷 / 07期

关键词：

Ni-rich cathodes; lithium-ion batteries; nanobrick structure; active facets; high rate; 010 ACTIVE FACETS; ELECTROCHEMICAL PERFORMANCE; LINI0.6CO0.2MN0.2O2; CATHODE; SURFACE DEGRADATION; PERSPECTIVE; VOLTAGE; SYSTEM; ANODES; BULK;

D O I：

10.1021/acsaem.0c00765

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ni-rich LiNi0.6Co0.2Mn0.2O2 nanomaterials with a high percentage of exposed {010} facets have been prepared by surfactant-assisted hydrothermal synthesis followed by solid-state reaction. Characterization by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) confirmed that the particles have enhanced the growth of nanocrystal planes in favor of Li-ion diffusion. Electrochemical tests show these cathode materials endow a large Li-ion diffusion coefficient, which leads to a superior rate capability and cyclability, suggesting these cathode materials are highly beneficial for practical application in Li-ion batteries.

引用

页码：6583 / 6590

页数：8

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