Low-Potential Sodium Insertion in a NASICON-Type Structure through the Ti(III)/Ti(II) Redox Couple

被引：220

作者：

Senguttuvan, P. ^{[1
,2
]}

Rousse, G. ^{[3
]}

Arroyo y de Dompablo, M. E. ^{[4
]}

Vezin, Herve ^{[5
]}

Tarascon, J. -M. ^{[2
]}

Palacin, M. R. ^{[1
]}

机构：

[1] ALISTORE ERI, Inst Ciencia Mat Barcelona ICMAB CSIC, E-08193 Bellaterra, Catalonia, Spain

[2] UPJV, ALISTORE ERI, CNRS UMR 6007, Lab Reactiv & Chim Solides, F-80039 Amiens, France

[3] Univ Paris 06, UMR CNRS 7590, IMPMC, F-75252 Paris 05, France

[4] Univ Complutense Madrid, Dept Quim Inorgan, E-28040 Madrid, Spain

[5] Univ Lille 1, CNRS, Univ Lille Nord France, UMR LASIR 8516, F-59655 Villeneuve Dascq, France

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 10期

关键词：

ION BATTERIES; LITHIUM; INTERCALATION; ELECTRODE; PHOSPHATES; ANODES; CELLS;

D O I：

10.1021/ja311044t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the direct synthesis of powder Na3Ti2(PO4)(3) together with its low-potential electrochemical performance and crystal structure elucidation for the reduced and oxidized phases. First-principles calculations at the density functional theory level have been performed to gain further insight into the electrochemistry of Ti(IV)/Ti(III) and Ti(III)/Ti(II) redox couples in these sodium superionic conductor (NASICON) compounds. Finally, we have validated the concept of full-titanium-based sodium ion cells through the assembly of symmetric cells involving Na3Ti2(PO4)(3) as both positive and negative electrode materials operating at an average potential of 1.7 V.

引用

页码：3897 / 3903

页数：7

共 48 条

[1] On the structure of Li3Ti2(PO4)3 [J].