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Solution combustion synthesis of LiMn2O4 fine powders for lithium ion batteries
| 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)
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Submitter: 秋山 友宏
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