Exploring reversible oxidation of oxygen in a manganese oxide

被引：235

作者：

Du, Ke ^{[1
,2
,3
]}

Zhu, Jinyou ^{[1
]}

Hu, Guorong ^{[1
]}

Gao, Hongcai ^{[2
,3
]}

Li, Yutao ^{[2
,3
]}

Goodenough, John B. ^{[2
,3
]}

机构：

[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Peoples R China

[2] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA

[3] Univ Texas Austin, Mat Sci & Engn Program, Austin, TX 78712 USA

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2016年 / 9卷 / 08期

关键词：

REDOX PROCESSES; BATTERIES; CAPACITY; P2-TYPE;

D O I：

10.1039/c6ee01367h

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Nominal Na-0.6(Li0.2Mn0.8)O-2 with the layered P3 structure (s.g. R3m) showed XPS evidence of holes in the O-2p bands on removal of Na+ ions. A large voltage plateau at 4.1 V versus Na+/Na faded significantly over 50 cycles although the capacity in the range 20 <= V < 4.5 V remained unchanged. Oxidation of the O-2p bands is not reversible.

引用

收藏

页码：2575 / 2577

页数：3

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