High Voltage Li-Ion Battery Using Exfoliated Graphite/Graphene Nanosheets Anode

• DOI: 10.1021/acsami.6b01407
• Publication Date: 2016-04-07T09:55:49Z
• Authors: Marco Agostini; Sergio Brutti; Jusef Hassoun
• Keywords: anode; graphene; graphite; high-voltage; lithium-ion battery; materials science (all); 02 engineering and technology; 0210 nano-technology; 01 natural sciences; 7. Clean energy; anode; graphene; graphite; high-voltage; lithium-ion battery; 0104 chemical sciences

The achievement of a new generation lithium-ion battery, suitable for continuously growing consumer electronic and sustainable electric vehicle markets, requires the development new, low-cost, highly performing materials. Herein, we propose efficient battery obtained by coupling exfoliated graphite/graphene nanosheets (EGNs) anode high-voltage, spinel-structure cathode. shows capacity exceeding 40% that ascribed to commercial graphite in lithium half-cell, at very high C-rate, due its particular structure morphology as demonstrated X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission (TEM). Li-ion reveals excellent efficiency cycle life, extending up 150 cycles, well an estimated practical energy density about 260 Wh kg(-1), is, value one associated with present-state battery.