26 May '17, 9pm

[email protected] team devises Li metal anode that completely suppresses Li dendrite formation

.@Riceuniversity team devises Li metal anode that completely suppresses Li dendrite formation

Rice team devises Li metal anode that completely suppresses Li dendrite formation 19 May 2017 Rice University scientists have used a seamless graphene-carbon nanotube (GCNT) electrode to store lithium metal reversibly and with complete suppression of dendrite formation. The GCNT-Li capacity of 3351 mAh g-1 GCNT-Li approaches that of bare Li metal (3861 mAh g-1 Li )—indicating the low contributing mass of GCNT—while yielding a practical areal capacity up to 4 mAh cm-2 and cycle stability. In a paper published in the journal ACS Nano , the team led by Dr. James Tour reports that a full battery based on GCNT-Li/sulfurized carbon (SC) exhibits high energy density (752 Wh kg-1 total electrodes , where total electrodes = GCNT-Li + SC + binder), high areal capacity (2 mAh cm-2 ), cyclability (80% retention at > 500 cycles) and is free of Li polysulfides and dendrites that would c...

Full article: http://www.greencarcongress.com/2017/05/20170519-rice.html

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