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A high-rate mangane...
A high-rate manganese oxide for rechargeable lithium battery applications
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- Doeff, Marca M. (författare)
- Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA
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- Anapolsky, Abraham (författare)
- Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA
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- Edman, Ludvig, 1967- (författare)
- Umeå universitet,Institutionen för fysik
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- Richardson, Thomas J. (författare)
- Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA
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- De Jonghe, L. C. (författare)
- Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA
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(creator_code:org_t)
- Electrochemical Society Inc, 2001
- 2001
- Engelska.
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Ingår i: Journal of the Electrochemical Society. - : Electrochemical Society Inc. - 0013-4651 .- 1945-7111. ; 148:3, s. A230-A236
- Relaterad länk:
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https://escholarship...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- LixMnO2 made by ion exchange of glycine-nitrate combustion synthesis-processed (GNP) orthorhombic Na0.44MnO2 (GNP-LixMnO2) has been cycled in lithium/liquid electrolyte cell configurations at room temperature and lithium/polymer cell configurations at 85 degreesC over one hundred times without showing capacity fading or phase conversion to spinel. At 2.5 mA/cm2 in liquid cells (5C rate) or 1 mA/cm2 (1.5C rate) in polymer cells, 80-95% of the expected capacity is delivered. The remarkable stability is attributable to the unusual double tunnel structure, which cannot easily undergo rearrangement to spinel. The enhanced rate capability of GNP-LixMnO2 compared to conventionally prepared materials is attributable to the shorter particle length, which allows faster diffusion of lithium ions along the tunnels.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- ORTHORHOMBIC NAXMNO2
- TRANSPORT-PROPERTIES
- SPINEL ELECTRODES
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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