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Nguyen, B. P. N., Kumar, N. A., Gaubicher, J., Duclairoir, F., Brousse, T., Crosnier, O., Dubois, L., Bidan, G., Guyomard, D. & Lestriez, B. (2013) Nanosilicon-Based Thick Negative Composite Electrodes for Lithium Batteries with Graphene as Conductive Additive. Adv. Energy Mater. 3 1351–1357. 
Added by: Laurent Cournède (2016-03-10 21:23:29)
Type de référence: Article
DOI: 10.1002/aenm.201300330
Numéro d'identification (ISBN etc.): 1614-6832
Clé BibTeX: Nguyen2013
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Catégories: ST2E
Mots-clés: anodes, energy-storage, Interphase, Li-ion batteries, nanocomposite, oxide nanosheets, performance, silicon nanoparticles, solid-electrolyte
Créateurs: Bidan, Brousse, Crosnier, Dubois, Duclairoir, Gaubicher, Guyomard, Kumar, Lestriez, Nguyen
Collection: Adv. Energy Mater.
Consultations : 12/429
Indice de consultation : 2%
Indice de popularité : 0.5%
Reduced graphene oxide (rGO) is used as a conductive additive for nanosilicon-based lithium battery anodes with the high active-mass loading typically required for industrial applications. In contrast to conventional Si electrodes that use acetylene black (AcB) as an additive, the rGO system shows pronounced improvement of electrochemical performance, irrespective of the cycling conditions. With capacity limitation, the rGO system results in improved coulombic efficiency (99.9\%) and longer cycle life than conventional electrodes. Upon cycling without capacity limitation, much higher discharge capacity is maintained (2000 mAh g(-1) after 100 cycles for 2.5 mg of Si cm(-2)). Used in conjunction with the bridging carboxymethyl cellulose binder, the crumpled and resilient rGO allows highly reversible functioning of the electrode in which the Si particles repeatedly inflate and deflate upon alloying and dealloying with lithium.
Added by: Laurent Cournède  
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