Porous carbon/CeO<sub>2</sub>composites for Li-ion battery application

Karim, Hasanul; Shuvo, Mohammad Arif Ishtiaque; Islam, Md. Tariqul; Rodriguez, Gerardo; Sandoval, Armando M.; Nandasiri, Manjula I.; Schwarz, Ashleigh M.; Devaraj, Arun; Noveron, Juan C.; Vijayakumar, M.; Lin, Yirong

doi:10.1117/12.2084293

Cited by 2 publications

(1 citation statement)

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“…Juan et al reported that porous carbon structure is an excellent candidate for anode materials for high power density LIB [10]. In addition, various nano-materials of metal oxides have been used as anode materials for LIB [9,11,12]. Hybrid nanostructure electrodes, which interconnect nano-structured electrode materials with conductive additive nano-phases, are another way of improving Li-ion insertion properties [9,13,14].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of CeO2 nanoparticles on porous carbon for Li-ion battery

et al. 2017

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Carbon based materials have long been investigated as anodes for lithium ion batteries. Among these materials, porous carbon holds several advantages such as high stability, high specific surface area, and excellent cycling capability. To further enhance the energy storage performance, ceramic nanomaterials have been combined with carbon based materials as hybrid anodes for enhanced specific capacity. The use of metal oxide ceramic nanomaterials could enhance the surface electrochemical reactivity thus leads to the increasing of capacity retention at higher number of cycles. In this research, we synthesized ceria (CeO2) nano-particles on porous carbon to form inorganic-organic hybrid composites as an anode material for Li-ion battery. The high redox potential of ceria is expected to increase the specific capacity and energy density of the system. The electrochemical performance was determined by a battery analyzer. It is observed that the specific capacity could be improved by 77% using hybrid composites anode. The material morphology, crystal structure, and thermal stability were characterized by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-Ray Diffraction (XRD), and Thermogravimetric Analysis (TGA).

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of CeO2 nanoparticles on porous carbon for Li-ion battery

et al. 2017

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Microwave exfoliated graphene oxide/TiO2 nanowire hybrid for high performance lithium ion battery

Shuvo

Rodriguez

Islam

et al. 2015

Journal of Applied Physics

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Lithium ion battery (LIB) is a key solution to the demand of ever-improving, high energy density, clean-alternative energy systems. In LIB, graphite is the most commonly used anode material; however, lithium-ion intercalation in graphite is limited, hindering the battery charge rate and capacity. To date, one of the approaches in LIB performance improvement is by using porous carbon (PC) to replace graphite as anode material. PC's pore structure facilitates ion transport and has been proven to be an excellent anode material candidate in high power density LIBs. In addition, to overcome the limited lithium-ion intercalation obstacle, nanostructured anode assembly has been extensively studied to increase the lithium-ion diffusion rate. Among these approaches, high specific surface area metal oxide nanowires connecting nanostructured carbon materials accumulation have shown promising results for enhanced lithium-ion intercalation. Herein, we demonstrate a hydrothermal approach of growing TiO2 nanowires (TON) on microwave exfoliated graphene oxide (MEGO) to further improve LIB performance over PC. This MEGO-TON hybrid not only uses the high surface area of MEGO but also increases the specific surface area for electrode–electrolyte interaction. Therefore, this new nanowire/MEGO hybrid anode material enhances both the specific capacity and charge–discharge rate. Scanning electron microscopy and X-ray diffraction were used for materials characterization. Battery analyzer was used for measuring the electrical performance of the battery. The testing results have shown that MEGO-TON hybrid provides up to 80% increment of specific capacity compared to PC anode.

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Porous carbon/CeO₂composites for Li-ion battery application

Cited by 2 publications

References 15 publications

Synthesis and characterization of CeO2 nanoparticles on porous carbon for Li-ion battery

Synthesis and characterization of CeO2 nanoparticles on porous carbon for Li-ion battery

Microwave exfoliated graphene oxide/TiO2 nanowire hybrid for high performance lithium ion battery

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Porous carbon/CeO2composites for Li-ion battery application

Cited by 2 publications

References 15 publications

Synthesis and characterization of CeO2 nanoparticles on porous carbon for Li-ion battery

Synthesis and characterization of CeO2 nanoparticles on porous carbon for Li-ion battery

Microwave exfoliated graphene oxide/TiO2 nanowire hybrid for high performance lithium ion battery

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Porous carbon/CeO₂composites for Li-ion battery application