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Non-Annealed Graphene Paper as a Binder-Free Anode for Lithium-Ion Batteries

Tipo de material: TextoTextoSeries ; J. Phys. Chem. C, 114(29), p.12800-12804, 2010Trabajos contenidos:
  • Abouimrane, A
  • Compton, O.C
  • Amine, K
  • Nguyen, S.T
Recursos en línea: Resumen: Non-annealed graphene paper, prepared via reduction of prefabricated graphene oxide paper with hydrazine hydrate, was employed as the sole component of a binder-free lithium-ion battery anode, circumventing the polymer binders and other additives required for the fabrication of conventional electrodes. The binder-free anode fabricated from this non-annealed paper possessed excellent cyclability, while exhibiting a voltage versus capacity profile similar to that of a polymer-bound graphene powder anode. Kinetic barriers may exist for Li ion diffusion through the layered paper structure as decreasing the current rate from 50 to 10 mA· g-1 increased the reversible capacity by over 150
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Non-annealed graphene paper, prepared via reduction of prefabricated graphene oxide paper with hydrazine hydrate, was employed as the sole component of a binder-free lithium-ion battery anode, circumventing the polymer binders and other additives required for the fabrication of conventional electrodes. The binder-free anode fabricated from this non-annealed paper possessed excellent cyclability, while exhibiting a voltage versus capacity profile similar to that of a polymer-bound graphene powder anode. Kinetic barriers may exist for Li ion diffusion through the layered paper structure as decreasing the current rate from 50 to 10 mA· g-1 increased the reversible capacity by over 150

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