Understanding Na2Ti3O7 as an ultra-low voltage anode material for a Na-ion battery

被引：123

作者：

Xu, Jing ^{[1
]}

Ma, Chuze ^{[1
]}

Balasubramanian, Mahalingam ^{[2
]}

Meng, Ying Shirley ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept NanoEngn, La Jolla, CA 92093 USA

[2] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA

来源：

CHEMICAL COMMUNICATIONS | 2014年 / 50卷 / 83期

基金：

美国国家科学基金会;

关键词：

X-RAY-ABSORPTION; ELECTROCHEMICAL NA; SODIUM INSERTION; ENERGY-STORAGE; HIGH-CAPACITY; LI; INTERCALATION; LITHIUM; ELECTRODES; SPECTROSCOPY;

D O I：

10.1039/c4cc03973d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An in-depth understanding of Na2Ti3O7 as a Na-ion battery anode is reported. The battery performance is enhanced by carbon coating, due to increased electronic conductivity and reduced solid electrolyte interphase formation. Ti4+ reduction upon discharge is demonstrated using in situ XAS. The self-relaxation behaviour of the fully intercalated phase is revealed.

引用

页码：12564 / 12567

页数：4

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