Journal
NANO LETTERS
Volume 12, Issue 3, Pages 1146-1151Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl202681b
Keywords
Li2MSiO4; nanosheets; supercritical fluids; high capacity; cathode
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Funding
- Grants-in-Aid for Scientific Research [11F01074] Funding Source: KAKEN
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Novel ultrathin Li2MnSiO4 nanosheets have been prepared in a rapid one pot supercritical fluid synthesis method. Nanosheets structured cathode material exhibits a discharge capacity of similar to 340 mAh/g at 45 +/- 5 degrees C. This result shows two lithium extraction/insertion performances with good cycle ability without any structural instability up to 20 cycles. The two-dimensional nanosheets structure enables us to overcome structural instability problem in the lithium metal silicate based cathode materials and allows successful insertion/extraction of two complete lithium ions.
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