Synthesis of LiMn2O4 with Outstanding Lithium‐Insertion Kinetics and Long‐Term Stability. Issue 9 (25th July 2014)

• Record Type: Journal Article
• Authors: Laszczynski, Nina; von Zamory, Jan; Loeffler, Nicholas; Cho, Gyu Bong; Kim, Guk‐Tae; Passerini, Stefano
• Is Part Of: ChemElectroChem. Volume 1:Issue 9(2014)
• Page Start: 1537
• Page End: 1542
• Publication Date: 2014-07-25
• Subjects: Electrochemistry -- Periodicals; 541.37
• DOI: 10.1002/celc.201402057
• Languages: English
• ISSNs: 2196-0216

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A simple route for the synthesis of LiMn₂O₄ (LMO) at low calcination temperatures is proposed. The calcination temperature is known to influence the structure and surface morphology of LMO; therefore, materials synthesized at different temperatures are characterized by using different techniques. A correlation between the calcination temperature and the structure and surface morphology of the material is shown. The synthesis route described here works at low calcination temperatures (650 °C), which leads to LMO that has an excellent rate performance (110 mAh g⁻¹) at a charge/discharge rate of 100 C, and avoids cation mixing, manganese dissolution, and Jahn–Teller distortion. The obtained morphology of octahedrons showing primarily (111) planes, ensures excellent electrochemical performance and stability.</p> </abstract>