Doping of titania with manganese for improving cycling and rate performances in lithium-ion batteries

被引：25

作者：

Opra, D. P. ^{[1
]}

Gnedenkov, S., V ^{[1
]}

Sinebryukhov, S. L. ^{[1
]}

Podgorbunsky, A. B. ^{[1
]}

Sokolov, A. A. ^{[1
,2
]}

Ustinov, A. Yu ^{[1
,2
]}

Kuryavyi, V. G. ^{[1
]}

Mayorov, V. Yu ^{[1
]}

Zheleznov, V. V. ^{[1
]}

机构：

[1] Inst Chem FEB RAS, 159,100 Letiya Vladivostoka, Vladivostok 690022, Russia

[2] Far Eastern Fed Univ, 8 Sukhanova St, Vladivostok 690950, Russia

来源：

CHEMICAL PHYSICS | 2020年 / 538卷

基金：

俄罗斯基础研究基金会;

关键词：

Lithium-ion battery; Anode; Titanium dioxide; Anatase; Doping; Cycleability; Rate capability; DOPED TIO2 NANOPARTICLES; ANODE MATERIALS; ANATASE TIO2; ELECTROCHEMICAL PERFORMANCE; HOLLOW SPHERES; MICROSPHERES; COMPOSITE; STORAGE;

D O I：

10.1016/j.chemphys.2020.110864

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：

Titanium dioxide have received a much attention for lithium-ion batteries due to safety as anode upon fast and low temperature cycling as well as appropriate stability during insertion and extraction of guest ions. However, TiO2 has low conductivity and sluggish diffusion of Li+. In order to eliminate these shortcomings, reducing of particle size and doping are considered as promising approaches. Herein, we investigate the effect of doping with manganese (atomic ratios of Mn/Ti = 0.05; 0.1; 0.2) on characteristics of anatase titania having nanoparticulate morphology. As found, Mn/Ti = 0.05 is optimal dopant concentration in terms of battery performance of titania: the capacity of 113 mAh g(-1) was still maintained after 118 cycles at 1C that is rather higher as compared to undoped anatase. Such improved electrochemical behavior is associated with anatase lattice expansion due to Mn3+ incorporation and enhanced conductivity.

引用

页数：9

共 53 条

[51] Formation of TiO2 hollow spheres through nanoscale Kirkendall effect and their lithium storage and photocatalytic properties [J].

Yu, Kaifeng ;

Ling, Meiqi ;

Liang, Jicai ;

Liang, Ce .

CHEMICAL PHYSICS, 2019, 517 :222-227

[52] Nanostructured transition metal oxides as advanced anodes for lithium-ion batteries [J].

Zhang, Jingjing ;

Yu, Aishui .

SCIENCE BULLETIN, 2015, 60 (09) :823-838

[53] Synthesis of nickel doped anatase titanate as high performance anode materials for lithium ion batteries [J].

Zhang, Wei ;

Gong, Yuxuan ;

Mellott, Nathan P. ;

Liu, Dawei ;

Li, Jiangang .

JOURNAL OF POWER SOURCES, 2015, 276 :39-45

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