Maximum Li storage in Si nanowires for the high capacity three-dimensional Li-ion battery
By Kibum Kang, Hyunseung Lee, Dongwook Han, Gil-Sung Kim, Donghun Lee, Geunhee Lee, Yong‐Mook Kang, M. Jo. 2010
169 citations recorded by the source corpus.
Nanowires can serve as three-dimensional platforms at the nanometer scale for highly efficient chemical energy storage and conversion vehicles, such as fuel cells and secondary batteries. Here we report a coin-type Si nanowire (NW) half-cell Li-ion battery showing the Li capacity of approximately 4000 mAh/g, which nearly approaches the theoretical limit of 4200 mAh/g, with very high Coulombic efficiency of up to 98%. Concomitantly, we provide direct evidence of reversible phase transitions in the Si NW anodes at the full electrochemical cycles, varying from pure Si to Li22Si5 phase, which has been known empirically inaccessible in the bulk limit.
Subfields: Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/916711bd22c4e31da99468d5e8c823334af9b7bf
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In Materials Chemistry
Citations in the corpus
- Evaluating the performance of nanostructured materials as lithium-ion battery electrodes (2013, methodology): “[24], prepared single crystalline Si nanowires on stainless steel substrates by a chemical vapour deposition (CVD) method, which approached a near theoretical limit (4212 mA h g–1) in the first discharge of ~4000 mA h g–1.”