NaxVO2 as possible electrode for Na-ion batteries

被引：228

作者：

Hamani, David ^{[1
]}

Ati, Mohamed ^{[2
]}

Tarascon, Jean-Marie ^{[2
]}

Rozier, Patrick ^{[1
]}

机构：

[1] Univ Toulouse, CEMES CNRS, F-31055 Toulouse, France

[2] Univ Picardie Jules Verne, Lab React & Chim Solides, CNRS UMR 6007, F-80039 Amiens, France

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2011年 / 13卷 / 09期

关键词：

Na batteries; Electrode materials; Insertion compound; NaxVO(2) phases; Electrochemical process; LITHIUM; SODIUM; INTERCALATION;

D O I：

10.1016/j.elecom.2011.06.005

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report the electrochemical properties vs. Na of the layered NaxVO2 phases having either octahedral or trigonal prismatic symmetries. Both phases can reversibly insert 0.5 Na atom per unit formula leading to sustained reversible capacities of nearly 120 mAh/g. Their voltage profile shows numerous voltage steps being mainly associated to subtle ordering of the Na ions within the layers while each phase preserves its initial structure through the entire Na insertion deinsertion process. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：938 / 941

页数：4

共 15 条

[11] Investigation of the New P′3-Na0.60VO2 Phase: Structural and Physical Properties [J].