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Graphene enhances lithium-ion batteries

Mon, 08/20/2012 - 12:28pm

2012 R&D 100 Winner
MS322_PNNL_GrapheneNanoTraditional rechargeable, lithium-ion cells are comprised of two electrodes soaked in a nonaqueous electrolyte and isolated from one another by an electrically insulating separator. This allows ions to flow between the two electrode compartments, but prevents shorting of the cell. To achieve higher energy density, the concentration of lithium-active species stored in the battery electrodes—which determines the battery's capacity—needs to increase significantly.

Graphene, the strongest and most conductive material known to science, has recently been tapped to provide this capability. Using a method for manufacturing functionalized graphene at a commercial scale, Vorbeck Materials, Jessup, Md., was founded in 2006 to develop graphene-based products. Led by researchers at Pacific Northwest National Laboratory, Richland, Wash., the collaborators have recently completed development of Graphene Nanostructures for Lithium Batteries.

Simple solution methods have been designed to prepare atomic-scale, 2D honeycomb lattices of high-capacity electrode materials and graphene. These ultrafine composites can further assemble into much larger particles that retain the intimate mixing. These larger particles/powders are in the size range currently used in commercial battery manufacturing equipment, thus facilitating rapid adoption. When used as electrodes in lithium-ion cells, these nanometer-scale composites show increased battery capacity, improved charge-discharge rates, shorter recharge time, and longer cycle life.

Technology
Graphene for lithium-ion batteries

Developers
Pacific Northwest National Laboratory
Vorbeck Materials


Development Team

 

MS322_PNNL_GrapheneNano_Bennett_WendyMS322_PNNL_GrapheneNano_Bennett_Wendy MS322_PNNL_GrapheneNano_Choi_Daiwon MS322_PNNL_GrapheneNano_Graff_GordonMS322_PNNL_GrapheneNano_Graff_Gordon
Wendy Bennett Daiwon Choi Gordon Graff

 

 

 

 

 

 

 

MS322_PNNL_GrapheneNano_Hu_Jianzhi MS322_PNNL_GrapheneNano_Lemmon_John MS322_PNNL_GrapheneNano_Kevin_Rosso
Jian Zhi Hu John Lemmon Kevin Rosso

 

 

 

 

 

 

 

MS322_PNNL_GrapheneNano_Li_Xiaolin MS322_PNNL_GrapheneNano_Liu_Jun MS322_PNNL_GrapheneNano_Mei_Donghai
Xiaolin Li Jun Liu Donghai Mei

 

 

 

 

 

 

 

MS322_PNNL_GrapheneNano_Murugesan_Vijay MS322_PNNL_GrapheneNano_Nie_Zimin MS322_PNNL_GrapheneNano_Saraf_Laxmikant
Vijayakumar Murugesan Zimin Nie Laxmikant Saraf

 

 

 

 

 

 

 

MS322_PNNL_GrapheneNano_Schwenzer_Birgit MS322_PNNL_GrapheneNano_Shin_Yongsoon MS322_PNNL_GrapheneNano_Sushko_Maria
Birgit Schwenzer Yongsoon Shin Maria Sushko

 

 

 

 

 

 

 

MS322_PNNL_GrapheneNano_Wang_Chongmin MS322_PNNL_GrapheneNano_Wang_Wei MS322_PNNL_GrapheneNano_Xiao_Jie
Chongmin Wang Wei Wang Jie Xiao

 

 

 

 

 

 

 

MS322_PNNL_GrapheneNano_Xu_Wu MS322_PNNL_GrapheneNano_Zhang_Jason MS322_PNNL_GrapheneNano_JL
Wu Xu Jason Zhang John Lettow

 

 

 

 

 

 

 


MS322_PNNL_GrapheneNano_Martin_Christy
Christy Martin

 

 

 

 

 

 

 

The Graphene Nanostructures for Lithium Batteries Development Team
Jun Liu, Principal Developer, Pacific Northwest National Laboratory
Wendy Bennett, Pacific Northwest National Laboratory
Daiwon Choi Pacific Northwest National Laboratory
Gordon Graff, Pacific Northwest National Laboratory
Jian Zhi Hu, Pacific Northwest National Laboratory
John Lemmon, Pacific Northwest National Laboratory
John S Lettow, Vorbeck Materials
Xiaolin Li, Pacific Northwest National Laboratory
Christy Martin, Vorbeck Materials
Donghai Mei, Pacific Northwest National Laboratory
Vijayakumar Murugesan, Pacific Northwest National Laboratory
Zimin Nie, Pacific Northwest National Laboratory
Kevin Rosso, Pacific Northwest National Laboratory
Laxmikant Saraf, Pacific Northwest National Laboratory
Birgit Schwenzer, Pacific Northwest National Laboratory
Yongsoon Shin, Pacific Northwest National Laboratory
Maria Sushko ,Pacific Northwest National Laboratory
Chongmin Wang, Pacific Northwest National Laboratory
Wei Wang, Pacific Northwest National Laboratory
Jie Xiao, Pacific Northwest National Laboratory
Wu Xu, Pacific Northwest National Laboratory
Ji-Guang Zhang, Pacific Northwest National Laboratory

Award Year

2012

Organization

Pacific Northwest National Laboratory (U.S. Dept. of Energy)
Vorbeck Materials

Developers

Jun Liu (Primary)
Wendy Bennett (Primary)
Daiwon Choi (Primary)
Gordon Graff (Primary)
Jian Hu (Primary)
John Lemmon (Primary)
Xiaolin Li (Primary)
Donghai Mei (Primary)
Vijayakumar Murugesan (Primary)
Zimin Nie (Primary)
Kevin Rosso\ (Primary)
Laxmikant Saraf (Primary)
Birgit Schwenzer (Primary)
Yongsoon Shin (Primary)
Maria Sushko (Primary)
Chongmin Wang (Primary)
Wei Wang (Primary)
Jie Xiao (Primary)
Wu Xu (Primary)
Ji-Guang Zhang (Primary)
John Lettow (co-developer)
Christy Martin (co-developer)
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