Effect of Calcination Temperature on a P-type Na0.6Mn0.65Ni0.25Co0.10O2 Cathode Material for Sodium-Ion Batteries. Issue 1 (31st December 2016)

• Record Type: Journal Article
• Authors: Nguyen, Ngoc-Anh; Kim, Kyuman; Choi, Kwang Ho; Jeon, Hyunkyu; Lee, Kyubock; Ryou, Myung-Hyun; Lee, Yong Min
• Is Part Of: Journal of the Electrochemical Society. Volume 164:Issue 1(2017)
• Page Start: A6308
• Page End: A6314
• Publication Date: 2016-12-31
• Subjects: Calcination temperature -- Crystalline structure -- Electrochemical performance -- P-type Na0.6Mn0.65Ni0.25Co0.10O2 cathode -- Sodium-ion batteries; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0511701jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Unstable and deficient supplies of lithium resources have led to the development of alternative battery systems such as sodium-ion batteries. Herein, P-type Na0.6 Mn0.65 Ni0.25 Co0.10 O2 cathode materials were synthesized by a co-precipitation and solid-state reaction method. When the calcination temperature was changed from 700 to 1000°C, Na0.6 Mn0.65 Ni0.25 Co0.10 O2 had a different morphology and crystalline structure; however, a P3-type structure was formed only at 700°C, and P2-type structured cathodes could be obtained at 800, 900, and 1000°C. Their electrochemical performances were evaluated with 2032 coin-type half cells. Among them, the P2-type cathode calcinated at 900°C, exhibited a high specific discharge capacity of 148 mAh g −1, and a stable cycling performance at a 0.2 C rate for 150 cycles.