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Title: Spinel LiMn(2)O(4)/Reduced Graphene Oxide Hybrid for High Rate Lithium Ion Batteries

Abstract

A well-crystallized and nano-sized spinel LiMn{sub 2}O{sub 4}/reduced graphene oxide hybrid cathode material for high rate lithium-ion batteries has been successfully synthesized via a microwave-assisted hydrothermal method at 200 C for 30 min without any post heat-treatment. The nano-sized LiMn{sub 2}O{sub 4} particles were evenly dispersed on the reduced graphene oxide template without agglomeration, which allows the inherent high active surface area of individual LiMn{sub 2}O{sub 4} nanoparticles in the hybrid. These unique structural and morphological properties of LiMn{sub 2}O{sub 4} on the highly conductive reduced graphene oxide sheets in the hybrid enable achieving the high specific capacity, an excellent high rate capability and stable cycling performance. An analysis of the cyclic voltammogram data revealed that a large surface charge storage contribution of the LiMn{sub 2}O{sub 4}/reduced graphene oxide hybrid plays an important role in achieving faster charge/discharge.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
Sponsoring Org.:
USDOE EE OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY (EERE)
OSTI Identifier:
1034736
Report Number(s):
BNL-96647-2011-JA
Journal ID: ISSN 0959-9428; JMACEP; R&D Project: MA-453-MAEA; VT0301010; TRN: US201204%%155
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Journal of Materials Chemistry
Additional Journal Information:
Journal Volume: 21; Journal Issue: 43; Journal ID: ISSN 0959-9428
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; AGGLOMERATION; CAPACITY; CATHODES; ELECTRIC BATTERIES; LITHIUM IONS; LITHIUM OXIDES; MANGANESE OXIDES; OXIDES; PERFORMANCE; SPINELS; STORAGE; SURFACE AREA; national synchrotron light source

Citation Formats

Bak, S M, Nam, K, Lee, C -W, Kim, K -H, Jung, H -C, Yang, X-Q, and Kim, K -B. Spinel LiMn(2)O(4)/Reduced Graphene Oxide Hybrid for High Rate Lithium Ion Batteries. United States: N. p., 2011. Web. doi:10.1039/c1jm13741g.
Bak, S M, Nam, K, Lee, C -W, Kim, K -H, Jung, H -C, Yang, X-Q, & Kim, K -B. Spinel LiMn(2)O(4)/Reduced Graphene Oxide Hybrid for High Rate Lithium Ion Batteries. United States. https://doi.org/10.1039/c1jm13741g
Bak, S M, Nam, K, Lee, C -W, Kim, K -H, Jung, H -C, Yang, X-Q, and Kim, K -B. 2011. "Spinel LiMn(2)O(4)/Reduced Graphene Oxide Hybrid for High Rate Lithium Ion Batteries". United States. https://doi.org/10.1039/c1jm13741g.
@article{osti_1034736,
title = {Spinel LiMn(2)O(4)/Reduced Graphene Oxide Hybrid for High Rate Lithium Ion Batteries},
author = {Bak, S M and Nam, K and Lee, C -W and Kim, K -H and Jung, H -C and Yang, X-Q and Kim, K -B},
abstractNote = {A well-crystallized and nano-sized spinel LiMn{sub 2}O{sub 4}/reduced graphene oxide hybrid cathode material for high rate lithium-ion batteries has been successfully synthesized via a microwave-assisted hydrothermal method at 200 C for 30 min without any post heat-treatment. The nano-sized LiMn{sub 2}O{sub 4} particles were evenly dispersed on the reduced graphene oxide template without agglomeration, which allows the inherent high active surface area of individual LiMn{sub 2}O{sub 4} nanoparticles in the hybrid. These unique structural and morphological properties of LiMn{sub 2}O{sub 4} on the highly conductive reduced graphene oxide sheets in the hybrid enable achieving the high specific capacity, an excellent high rate capability and stable cycling performance. An analysis of the cyclic voltammogram data revealed that a large surface charge storage contribution of the LiMn{sub 2}O{sub 4}/reduced graphene oxide hybrid plays an important role in achieving faster charge/discharge.},
doi = {10.1039/c1jm13741g},
url = {https://www.osti.gov/biblio/1034736}, journal = {Journal of Materials Chemistry},
issn = {0959-9428},
number = 43,
volume = 21,
place = {United States},
year = {Tue Oct 04 00:00:00 EDT 2011},
month = {Tue Oct 04 00:00:00 EDT 2011}
}