Journal
INORGANIC CHEMISTRY
Volume 51, Issue 10, Pages 5554-5560Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic3004382
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Funding
- MICINN [MAT2008-05880, MAT2011-22753]
- EC
- National Science Fund of Bulgaria [Ch1701/2007, DCVP-02/2/2009]
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A promising group of inorganic salts recently emerged for the negative electrode of advanced lithium-ion batteries. Manganese carbonate combines low weight and significant lithium storage properties. Electron paramagnetic resonance (EPR) and magnetic measurements are used to study the environment of manganese ions during cycling in lithium test cells. To observe reversible lithium storage into manganese carbonate, preparation by a reverse micelles method is used. The resulting nanostructuration favors a capacitive lithium storage mechanism in manganese carbonate with good rate performance. Partial substitution of cobalt by manganese improves cycling efficiency at high rates.
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