Air‐Stable Copper‐Based P2‐Na7/9Cu2/9Fe1/9Mn2/3O2 as a New Positive Electrode Material for Sodium‐Ion Batteries. Issue 6 (4th May 2015)

• Record Type: Journal Article
• Authors: Li, Yunming; Yang, Zhenzhong; Xu, Shuyin; Mu, Linqin; Gu, Lin; Hu, Yong‐Sheng; Li, Hong; Chen, Liquan
• Is Part Of: Advanced science. Volume 2:Issue 6(2015:Jun.)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2015-05-04
• Subjects: Science -- Periodicals; 505
• DOI: 10.1002/advs.201500031
• Languages: English
• ISSNs: 2198-3844

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="advs201500031-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>An air‐stable copper‐based P2‐Na_7/9Cu_2/9Fe_1/9Mn_2/3O₂</bold> is designed and synthesized by a simple solid‐state method and investigated as a positive electrode material for sodium‐ion batteries. The attractive long cycling stability is demonstrated by the capacity retention of 85% after 150 cycles at 1 C rate without phase transformation. The reversible Cu²⁺/Cu³⁺ redox couple in P2 phase oxides is proved for the first time. <graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgjzsj8f10" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </abstract>