Synthesis and electrochemical properties of spherical spinel Li1.05M0.05Mn1.9O4 (M = Mg and Al) as a cathode material for lithium-ion batteries by co-precipitation method
- Authors
- Lee, Kwang Seop; Bang, Hyun Joo; Myung, Seung-Taek; Prakash, Jai; Amine, Kahlil; Sun, Yang Kook
- Issue Date
- Dec-2007
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- lithium-ion battery; cathode; spinel; co-precipitation; substitution
- Citation
- JOURNAL OF POWER SOURCES, v.174, no.2, pp.726 - 729
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 174
- Number
- 2
- Start Page
- 726
- End Page
- 729
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/179295
- DOI
- 10.1016/j.jpowsour.2007.06.110
- ISSN
- 0378-7753
- Abstract
- Cation (Mg and Al)-substituted spinel were synthesized using metal oxide precursor by co-precipitation method. XRD revealed that the prepared substituted spinel has spinel structure with Fd3m space group. In order to compensate the decreased initial capacity of cation-substituted spinel, partial anion (F) substitution was also carried out. The cycling performance of all the substituted spinel was improved, compared to the Li1.05Mn1.95O4 at 55 degrees C. Li1.05Al0.1Mn1.85O3.F-95(0.05) showed better capacity retention than the other substituted spinels. Both cation and anion substitution appeared to be effective for improving the cycling performance of spinel material at elevated temperature.
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