Issue 57, 2014

Synthesis of sodium manganese oxides with tailored multi-morphologies and their application in lithium/sodium ion batteries

Abstract

Sodium manganese oxides (SMO) with different crystal structures have been synthesized by high-temperature solid-state reaction (HTSSR), in which both morphology and crystal structure of SMO can be well-controlled by synergistic effects of both the ratio of sodium-to-manganese and the heat-treatment temperature. The material is further used as the cathode in Li/Na-ion batteries, and the experimental results indicated that the performance of SMO as the electrode material mainly depends on its crystal structure, while its morphology only plays an important role in the initial stage. SMO with a 3-D tunnel structure (Na0.44MnO2) and a layer structure (Na0.67MnO2 and Na0.91MnO2) delivers better battery performance.

Graphical abstract: Synthesis of sodium manganese oxides with tailored multi-morphologies and their application in lithium/sodium ion batteries

Article information

Article type
Paper
Submitted
24 Eph 2014
Accepted
27 Jun 2014
First published
30 Jun 2014

RSC Adv., 2014,4, 30340-30345

Synthesis of sodium manganese oxides with tailored multi-morphologies and their application in lithium/sodium ion batteries

M. Xu, Y. Niu, Y. Li, S. Bao and C. M. Li, RSC Adv., 2014, 4, 30340 DOI: 10.1039/C4RA03735A

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