Surface dual-shell construction enhances the electrochemical performances of Li1.2Ni0.13Co0.13Mn0.54O2 cathode materials

被引：9

作者：

Chen, Yongxiang ^{[1
]}

Li, Yunjiao ^{[1
]}

Zheng, Junchao ^{[1
]}

Li, Wei ^{[1
,2
]}

Luo, Linshan ^{[3
]}

Yang, Jiachao ^{[1
]}

Liu, Shuaiwei ^{[1
]}

Xiong, Yike ^{[1
]}

Wang, Shan ^{[1
]}

机构：

[1] Cent South Univ, Sch Met & Environm, Changsha 410083, Peoples R China

[2] Citic Dameng Min Ind Ltd, Nanning 530028, Peoples R China

[3] Xiamen Univ, Coll Phys Sci & Technol, Xiamen 361005, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2020年 / 341卷

关键词：

Lithium- and manganese-rich cathodes; Dual-shell modification; Electrochemical performance; Lithium-ion batteries; RICH LAYERED-OXIDE; MN-RICH; CYCLING STABILITY; RATE CAPABILITY; VOLTAGE DECAY; LI; LINI0.5CO0.2MN0.3O2; INTERFACE; NH4F; CO2;

D O I：

10.1016/j.electacta.2020.136082

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

High-capacity lithium- and manganese-rich cathodes play a critical role in the development of the advanced Li-ion batteries. However, the severe capacity fading and voltage decay impede their commercial applications. Herein, the vacancy-enriched Li1.2Ni0.13Co0.13Mn0.54O2 cathodes with spinet/defective structure shell are realized by the gas-solid reactions (GSR) and the followed Li-Nb-0 coating shell coated Li1.2Ni0.13Co0.13Mn0.54O2 cathodes are achieved by a liquid coating process (LCP). The dual-shell modified Li1.2Ni0.13Co0.13Mn0.54O2 cathodes can deliver 219.5 mAh.g (-1 )at 250 mA.g( -1) and corresponding to 96.44% capacity retentions after 100 cycles over 2.0-4.6 V, far higher than those (212.3 mAh.g(-1) and 83.09%) of the pristine Li1.2Ni0.13Co0.13Mn0.54O2 cathode material. Even at 1250 mA the capacity retentions also improve from 50.68% to 95.92% after 100 cycles. The enhanced electrochemical performances are mainly ascribed to the enhanced structural stability and the suppressed harmful side-reactions/transition metal dissolutions. The construction of the dual shells provides an effective method to optimize the interfacial structure of Li- and Mn-rich cathode material and other cathode materials. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：10

共 49 条

[1] Engineering oxygen vacancies in hierarchically Li-rich layered oxide porous microspheres for high-rate lithium ion battery cathode [J].

Cai, Yuxin ;

Ku, Lun ;

Wang, Laisen ;

Ma, Yating ;

Zheng, Hongfei ;

Xu, Wanjie ;

Han, Jiangtao ;

Qu, Baihua ;

Chen, Yuanzhi ;

Xie, Qingshui ;

Peng, Dong-Liang .

SCIENCE CHINA-MATERIALS, 2019, 62 (10) :1374-1384

[2] Chemical coupling constructs amorphous silica modified LiNi0.6Co0.2Mn0.2O2 cathode materials and its electrochemical performances [J].

Chen, Yongxiang ;

Tang, Shuyun ;

Deng, Shiyi ;

Lei, Tongxing ;

Li, Yunjiao ;

Li, Wei ;

Cao, Guolin ;

Zhu, Jie ;

Zhang, Jinping .

JOURNAL OF POWER SOURCES, 2019, 431 :8-16

[3] Enhancing the high-voltage electrochemical performance of the LiNi0.5Co0.2Mn0.3O2 cathode materials via hydrothermal lithiation [J].

Chen, Yongxiang ;

Li, Puliang ;

Li, Yunjiao ;

Su, Qianye ;

Xue, Longlong ;

Han, Qiang ;

Cao, Guoling ;

Li, Jianguo .

JOURNAL OF MATERIALS SCIENCE, 2018, 53 (03) :2115-2126

[4] Stable heteroepitaxial interface of Li-rich layered oxide cathodes with enhanced lithium storage [J].

Ding, Zhengping ;

Zhang, Chunxiao ;

Xu, Sheng ;

Liu, Jiatu ;

Liang, Chaoping ;

Chen, Libao ;

Wang, Peng ;

Ivey, Douglas G. ;

Deng, Yida ;

Wei, Weifeng .

ENERGY STORAGE MATERIALS, 2019, 21 :69-76

[5] High-Temperature Treatment of Li-Rich Cathode Materials with Ammonia: Improved Capacity and Mean Voltage Stability during Cycling [J].

Erickson, Evan M. ;

Sclar, Hadar ;

Schipper, Florian ;

Liu, Jing ;

Tian, Ruiyuan ;

Ghanty, Chandan ;

Burstein, Larisa ;

Leifer, Nicole ;

Grinblat, Judith ;

Talianker, Michael ;

Shin, Ji-Yong ;

Lampert, Jordan K. ;

Markovsky, Boris ;

Frenkel, Anatoly I. ;

Aurbach, Doron .

ADVANCED ENERGY MATERIALS, 2017, 7 (18)

[6] Electrochemical Properties of the LiNi0.6Co0.2Mn0.2O2 Cathode Material Modified by Lithium Tungstate under High Voltage [J].

Fu, Jiale ;

Mu, Daobin ;

Wu, Borong ;

Bi, Jiaying ;

Cui, Hui ;

Yang, Hao ;

Wu, Hanfeng ;

Wu, Feng .

ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (23) :19704-19711

[7] Impedance spectroscopic study of the charge transfer resistance at the interface between a LiNi0.5Mn1.5O4 high-voltage cathode film and a LiNbO3 coating film [J].

Gellert, Michael ;

Gries, Katharina I. ;

Sann, Joachim ;

Pfeifer, Erik ;

Volz, Kerstin ;

Roling, Bernhard .

SOLID STATE IONICS, 2016, 287 :8-12

[8] Improving the electrochemical properties of Mn-rich Li1.20[Mn0.54Ni0.13Co0.13]O2 by Nb and F co-doping [J].

Gu, Haidong ;

Liu, Tingrui ;

Liu, Tingting ;

Zhou, Yuyang ;

Xu, Ming ;

Chen, Feng .

SOLID STATE IONICS, 2019, 336 :129-138

[9] Abundant nanoscale defects to eliminate voltage decay in Li-rich cathode materials [J].

Guo, Haocheng ;

Wei, Zhen ;

Jia, Kai ;

Qiu, Bao ;

Yin, Chong ;

Meng, Fanqi ;

Zhang, Qinghua ;

Gu, Lin ;

Han, Shaojie ;

Liu, Yan ;

Zhao, Hu ;

Jiang, Wei ;

Cui, Hongfu ;

Xia, Yonggao ;

Liu, Zhaoping .

ENERGY STORAGE MATERIALS, 2019, 16 :220-227

[10] Facile synthesis of Li-rich layered oxides with spinel-structure decoration as high-rate cathode for lithium-ion batteries [J].

Han, Jiangtao ;

Zheng, Hongfei ;

Hu, Zhenyu ;

Luo, Xianrui ;

Ma, Yating ;

Xie, Qingshui ;

Peng, Dong-Liang ;

Yue, Guanghui .

ELECTROCHIMICA ACTA, 2019, 299 :844-852

← 1 2 3 4 5 →