Enhancing the Kinetics of Li-Rich Cathode Materials through the Pinning Effects of Gradient Surface Na+ Doping

被引：309
作者：
Qing, Ren-Peng [1 ,2 ]
Shi, Ji-Lei [1 ]
Xiao, Dong-Dong [3 ]
Zhang, Xu-Dong [1 ]
Yin, Ya-Xia [1 ]
Zhai, Yun-Bo [2 ]
Gu, Lin [3 ]
Guo, Yu-Guo [1 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China
[2] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
[3] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
[4] Shandong Wina Green Power Co Ltd, Shouguang 262705, Peoples R China
来源：
ADVANCED ENERGY MATERIALS | 2016年 / 6卷 / 06期
基金：
中国国家自然科学基金;
关键词：
cathode materials; kinetics; Li-ion batteries; lithium-rich; sodium doping; LITHIUM-ION BATTERIES; ELECTROCHEMICAL PROPERTIES; CYCLING STABILITY; OXIDE ELECTRODES; RATE CAPABILITY; HIGH-CAPACITY; PERFORMANCE; STORAGE; MN; NI;
D O I：
10.1002/aenm.201501914
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：
Gradient surface Na-ion doping is realized and demonstrated as an effective strategy to enhance the kinetics of Li-rich cathode materials. Owing to the pinning effect of Na-doping in the Li layer, the resultant Li-rich particles exhibit superior electrochemical performances in terms of specific capacity, Coulombic efficiency, and cycling stability. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页数：6
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