Synthesis of Cu-doped Li4Ti5O12 anode materials with a porous structure for advanced electrochemical energy storage: Lithium-ion batteries

被引：33

作者：

Deng, Xiaoqian ^{[1
]}

Li, Wenrui ^{[1
]}

Zhu, Menghan ^{[1
]}

Xiong, Deping ^{[1
]}

He, Miao ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou 510006, Peoples R China

来源：

SOLID STATE IONICS | 2021年 / 364卷

基金：

中国国家自然科学基金;

关键词：

Li4Ti5O12; Freeze-drying; Cu-doped; Anode; Lithium-ion batteries; RATE PERFORMANCE; RATE CAPABILITY; NANOSHEETS; NANOPARTICLES; STABILITY; CAPACITY; SPINEL; COMPOSITES;

D O I：

10.1016/j.ssi.2021.115614

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：

Cu-doped Li4Ti5O12 anode material is prepared through a facile direct-synthesis-from-solution (DSS) route assisted with freeze-drying. The Cu-doping can reduce the charge transfer resistance and enhance the lithium-ion diffusion and electronic conductivity. Among the as-fabricated samples, LTO-0.1Cu sample shows the best cycling performance and rate capability, delivering the capacity of 216.4, 206.4, 195.1, 184.5 and 173.3 mAhg(-1) at 1, 2, 5, 10 and 20C, respectively, and 180.6 mAhg(-1) at 10C after 500 cycles with 83.8% retention. Thus, this work provides an effective approach to improve the electrochemical performance of Li4Ti5O12 as the anode materials for high-rate lithium-ion battery applications.

引用

页数：8

共 51 条

[1] Research Progress on Negative Electrodes for Practical Li-Ion Batteries: Beyond Carbonaceous Anodes [J].

Aravindan, Vanchiappan ;

Lee, Yun-Sung ;

Madhavi, Srinivasan .

ADVANCED ENERGY MATERIALS, 2015, 5 (13)

[2] Pseudocapacitive oxide materials for high-rate electrochemical energy storage [J].

Augustyn, Veronica ;

Simon, Patrice ;

Dunn, Bruce .

ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (05) :1597-1614

[3] Capacity degradation of Li4Ti5O12 during long-term cycling in terms of composition and structure [J].

Bai, Xue ;

Li, Tao ;

Bai, Yu-Jun .

DALTON TRANSACTIONS, 2020, 49 (29) :10003-10010

[4] Preparation and electrochemical performance of F-doped Li4Ti5O12 for use in the lithium-ion batteries [J].

Bai, Xue ;

Li, Wen ;

Wei, Aijia ;

Chang, Qian ;

Zhang, Lihui ;

Liu, Zhenfa .

SOLID STATE IONICS, 2018, 324 :13-19

[5] Pseudocapacitive Na-Ion Storage Boosts High Rate and Areal Capacity of Self-Branched 2D Layered Metal Chalcogenide Nanoarrays [J].

Chao, Dongliang ;

Liang, Pei ;

Chen, Zhen ;

Bai, Linyi ;

Shen, He ;

Liu, Xiaoxu ;

Xia, Xinhui ;

Zhao, Yanli ;

Savilov, Serguei V. ;

Lin, Jianyi ;

Shen, Ze Xiang .

ACS NANO, 2016, 10 (11) :10211-10219

[6] Copper-Doped Dual Phase Li4Ti5O12-TiO2 Nanosheets as High-Rate and Long Cycle Life Anodes for High-Power Lithium-Ion Batteries [J].

Chen, Chengcheng ;

Huang, Yanan ;

An, Cuihua ;

Zhang, Hao ;

Wang, Yijing ;

Jiao, Lifang ;

Yuan, Huatang .

CHEMSUSCHEM, 2015, 8 (01) :114-122

[7] Capacity Fade Mechanism of Li4Ti5O12 Nanosheet Anode [J].

Chiu, Hsien-Chieh ;

Lu, Xia ;

Zhou, Jigang ;

Gu, Lin ;

Reid, Joel ;

Gauvin, Raynald ;

Zaghib, Karim ;

Demopoulos, George P. .

ADVANCED ENERGY MATERIALS, 2017, 7 (05)

[8] Challenges in the development of advanced Li-ion batteries: a review [J].

Etacheri, Vinodkumar ;

Marom, Rotem ;

Elazari, Ran ;

Salitra, Gregory ;

Aurbach, Doron .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (09) :3243-3262

[9] Fluorine-doped porous SnO2@C nanosheets as a high performance anode material for lithium ion batteries [J].

Feng, Yefeng ;

Bai, Chen ;

Wu, Kaidan ;

Dong, Huafeng ;

Ke, Jin ;

Huang, Xiping ;

Xiong, Deping ;

He, Miao .

JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 843

[10] Surface-engineered Li4Ti5O12 nanoparticles by TiO2 coating for superior rate capability and electrochemical stability at elevated temperature [J].

Gangaja, Binitha ;

Nair, Shantikumar ;

Santhanagopalan, Dhamodaran .

APPLIED SURFACE SCIENCE, 2019, 480 :817-821

← 1 2 3 4 5 6 →