Mechanisms of the Reversible Electrochemical Insertion of Lithium Occurring with NCIMs (Nano–Crystallite Insertion–Materials)
A new family of insertion-compound electrodes, so called NCIMs (Nano-Crystallite-Insertion-Materials) has been proposed: the major requirement is that the electrode materials have to be polycrystalline with a crystallite and particle size as small as possible (the accepted definition being that many...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1995-01-01
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| Series: | Active and Passive Electronic Components |
| Online Access: | http://dx.doi.org/10.1155/1995/86802 |
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| Summary: | A new family of insertion-compound electrodes, so called NCIMs (Nano-Crystallite-Insertion-Materials) has been proposed: the major requirement is that the electrode materials have to be polycrystalline with a crystallite and particle size as small as possible (the accepted definition being that many
crystallites make a particle). Indeed, by minimizing the size of the crystallites, the formation of defects
is favored, particularly at the crystallite surface, acting as reversible (de)grafting sites of Li+. Also, the
cation-anion bonding is weakened not only in the grain boundary region but also within the crystallite
close to its surface: then the electrochemical insertion of Li+ takes place through easy bonding
rearrangements. |
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| ISSN: | 0882-7516 1563-5031 |