Nanosilicon-based thick negative composite electrodes for lithium batteries with graphene as conductive additive

Nguyen, Binh Phuong Nhan, Kumar, Nanjundan Ashok, Gaubicher, Joel, Duclairoir, Florence, Brousse, Thierry, Crosnier, Olivier, Dubois, Lionel, Bidan, Gerard, Guyomard, Dominique and Lestriez, Bernard (2013) Nanosilicon-based thick negative composite electrodes for lithium batteries with graphene as conductive additive. Advanced Energy Materials, 3 10: 1351-1357. doi:10.1002/aenm.201300330


Author Nguyen, Binh Phuong Nhan
Kumar, Nanjundan Ashok
Gaubicher, Joel
Duclairoir, Florence
Brousse, Thierry
Crosnier, Olivier
Dubois, Lionel
Bidan, Gerard
Guyomard, Dominique
Lestriez, Bernard
Title Nanosilicon-based thick negative composite electrodes for lithium batteries with graphene as conductive additive
Journal name Advanced Energy Materials   Check publisher's open access policy
ISSN 1614-6832
1614-6840
Publication date 2013
Year available 2013
Sub-type Article (original research)
DOI 10.1002/aenm.201300330
Open Access Status
Volume 3
Issue 10
Start page 1351
End page 1357
Total pages 7
Place of publication Weinheim, Germany
Publisher Wiley - V C H Verlag GmbH
Language eng
Abstract 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. Copyright
Keyword Anodes
Cycle performance
Graphene additives
Lithium ion batteries
Nanosilicon
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
 
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