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Title: Graphene materials having randomly distributed two-dimensional structural defects

Patent ·
OSTI ID:1097264
; ; ;

Graphene-based storage materials for high-power battery applications are provided. The storage materials are composed of vertical stacks of graphene sheets and have reduced resistance for Li ion transport. This reduced resistance is achieved by incorporating a random distribution of structural defects into the stacked graphene sheets, whereby the structural defects facilitate the diffusion of Li ions into the interior of the storage materials.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
Northwestern University (Evanston, IL)
Patent Number(s):
8,551,650
Application Number:
13/106,210
OSTI ID:
1097264
Country of Publication:
United States
Language:
English

References (21)

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Silicon nanoparticles–graphene paper composites for Li ion battery anodes journal February 2010
Determination of the Local Chemical Structure of Graphene Oxide and Reduced Graphene Oxide journal August 2010
Nanowire, method for producing the nanowire, nanonetwork using the nanowires, method for producing the nanonetwork, carbon structure using the nanowire, and electronic device using the nanowire patent-application March 2003
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Electrode Material Comprising Graphene Composite Materials in a Graphite Network Formed from Reconstituted Graphene Sheets patent-application May 2011
Building better batteries journal February 2008
Enhanced Cyclic Performance and Lithium Storage Capacity of SnO 2 /Graphene Nanoporous Electrodes with Three-Dimensionally Delaminated Flexible Structure journal January 2009
Method of Depositing Silicon on Carbon Materials and Forming an Anode for Use in Lithium Ion Batteries patent-application October 2008
Hybrid anode compositions for lithium ion batteries patent-application May 2009
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Lithium-ion rechargeable battery patent-application December 2004
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Defect formation in graphene nanosheets by acid treatment: an x-ray absorption spectroscopy and density functional theory study journal February 2008
Secondary Battery Electrode, Method for Manufacturing Same, and Secondary Battery patent-application July 2008

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Related Subjects

36 MATERIALS SCIENCE