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Solution combustion synthesis of LiMn2O4 fine powders for lithium ion batteries

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/57629

Title: Solution combustion synthesis of LiMn2O4 fine powders for lithium ion batteries
Authors: Zhu, Chunyu Browse this author
Nobuta, Akira Browse this author
Saito, Genki Browse this author →KAKEN DB
Nakatsugawa, Isao Browse this author
Akiyama, Tomohiro Browse this author →KAKEN DB
Keywords: Combustion synthesis
Lithium ion battery
LiMn2O4
Cathode material
Issue Date: Jan-2014
Publisher: Elsevier
Journal Title: Advanced Powder Technology
Volume: 25
Issue: 1
Start Page: 342
End Page: 347
Publisher DOI: 10.1016/j.apt.2013.05.015
Abstract: In this work, fine powders of spinel-type LiMn2O4 as cathode materials for lithium ion batteries (LIBs) were produced by a facile solution combustion synthesis using glycine as fuel and metal nitrates as oxidizers. Single phase of LiMn2O4 products were successfully prepared by SCS with a subsequent calcination treatment at 600-1000 degrees C. The structure and morphology of the powders were studied in detail by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The electrochemical properties were characterized by galvanostatic charge-discharge cycling and cyclic voltammetry. The crystallinity, morphology, and size of the products were greatly influenced by the calcination temperature. The sample calcined at 900 C had good crystallinity and particle sizes between 500 and 1000 nm. It showed the best performance with an initial discharge capacity of 115.6 mAh g(-1) and a capacity retention of 93% after 50 cycles at a 1 C rate. In comparison, the LiMn2O4 sample prepared by the solid-state reaction showed a lower capacity of around 80 mAh g(-1).
Type: article (author version)
URI: http://hdl.handle.net/2115/57629
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 秋山 友宏

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