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Highly oriented macroporous graphene hybrid monoliths for lithium ion battery electrodes with ultrahigh capacity and rate capability

Huang Y, Wu D, Jiang J, Mai Y, Zhang F, Pan H, Feng X (2015)

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Publication Type: Journal article

Publication year: 2015

Journal

Book Volume: 12

Pages Range: 287-295

DOI: 10.1016/j.nanoen.2014.12.034

Abstract

The highly oriented macroporous graphene monoliths hybridized with carbon-coated metal oxide or phosphate (C/M/GM) with core/shell structure were fabricated by an ice-templating co-assembly of M/GO nanosheets (metal oxide/phosphates decorated graphene oxide) and polyvinyl alcohol (PVA), and following thermal treatment. With either tin oxide (SnO2) or iron phosphate (FePO4), the resulting C/M/GMs possess periodic macropores with diameters ranging from 5 to 20μm and high loading contents of active components (~70wt%). Served as the anode in LIBs, C/SnO2/GM maintains an ultrahigh capacity of 1665mAhg^-1 at a current density of 0.2Ag^-1 for 200 cycles. Even at an ultrafast charge rate of 10Ag^-1, a decent capacity of 300mAhg^-1 can still be achieved, with excellent cycling stability. And C/FePO4/GM also delivers a highly reversible capacity of 175mAhg^-1 at a current density of 0.05Ag^-1 for 150 cycles and a good capacity of 57mAhg^-1 at 2Ag^-1 when as the LIB cathode electrode.

Involved external institutions

How to cite

APA:

Huang, Y., Wu, D., Jiang, J., Mai, Y., Zhang, F., Pan, H., & Feng, X. (2015). Highly oriented macroporous graphene hybrid monoliths for lithium ion battery electrodes with ultrahigh capacity and rate capability. Nano Energy, 12, 287-295. https://doi.org/10.1016/j.nanoen.2014.12.034

MLA:

Huang, Yanshan, et al. "Highly oriented macroporous graphene hybrid monoliths for lithium ion battery electrodes with ultrahigh capacity and rate capability." Nano Energy 12 (2015): 287-295.

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