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Mesoporous Spinel LiMn2O4 Nanomaterial as a Cathode for High-Performance Lithium Ion Batteries
- Authors
- Hwang, Bo-Mi; Kim, Si-Jin; Lee, Young-Woo; Han, Biao; Kim, Seong-Bae; Kim, Woo-Seong; Park, Kyung-Won
- Issue Date
- Jul-2013
- Publisher
- ESG
- Keywords
- LiMn2O4; Nanostructure; Polymer template method; Cathode; Lithium ion batteries
- Citation
- INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, v.8, no.7, pp.9449 - 9458
- Journal Title
- INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
- Volume
- 8
- Number
- 7
- Start Page
- 9449
- End Page
- 9458
- ISSN
- 1452-3981
- Abstract
- We demonstrate mesoporous spinel LiMn2O4 nanomaterial (NS-LMO) synthesized by polymer template method for high-performance lithium ion batteries. The as-synthesized NS-LMO exhibits complete spinel LMO structure with dominant {111} surfaces, nanocrystalline of similar to 30 nm in size, and relatively high surface area (similar to 13.8 m(2) g(-1)) with mesoporous characteristics. In contrast, the LMO (SS-LMO) prepared by the solid state reaction method consists of a spinel structure of LMO and an extra phase of Mn2O3. The NS-LMO displays much higher capacity of similar to 96.19 mAh g(-1) at 1 C compared to the SS-LMO (similar to 57.03 mAh g(-1)) and improved rate cycling performance with the complete capacity retention.
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Related Researcher
- PARK, KYUNG WON
- College of Engineering (Department of Chemical)