Compact Lithium-Ion Battery Electrodes with Lightweight Reduced Graphene Oxide/Poly(Acrylic Acid) Current Collectors

Pender, Joshua P.; Han, Xiaobin; Dong, Ziyue; Cavallaro, Kelsey A.; Weeks, Jason A.; Heller, Adam; Ellison, Christopher J.; Mullins, C. Buddie

doi:10.1021/acsaem.8b02007

Cited by 11 publications

(15 citation statements)

References 38 publications

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“…A high-density energy storage system is highly in demand for electric vehicles and flexible energy systems requiring a portfolio of various distributed energy resources. Extensive research has been considerably expanded over the last few years to develop innovative green energy-storage devices such as batteries and supercapacitors to cope with highly intermittent demand on electric energy storage [ 1 , 2 , 3 , 4 , 5 ]. Most of the energy-storage devices are based on batteries, which still have low power density and safety issues [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Ultra-High Energy Density Hybrid Supercapacitors Using MnO2/Reduced Graphene Oxide Hybrid Nanoscrolls

et al. 2020

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Manganese oxide (MnO2) is a promising material for supercapacitor applications, with a theoretical ultra-high energy density of 308 Wh/kg. However, such ultra-high energy density has not been achieved experimentally in MnO2-based supercapacitors because of several practical issues, such as low electrical conductivity of MnO2, incomplete utilization of MnO2, and dissolution of MnO2. The present study investigates the potential of MnO2/reduced graphene oxide (rGO) hybrid nanoscroll (GMS) structures as electrode material for overcoming the difficulties and for developing ultra-high-energy storage systems. A hybrid supercapacitor, comprising MnO2/rGO nanoscrolls as anode material and activated carbon (AC) as a cathode, is fabricated. The GMS/AC hybrid supercapacitor exhibited enhanced energy density, superior rate performance, and promising Li storage capability that bridged the energy–density gap between conventional Li-ion batteries (LIBs) and supercapacitors. The fabricated GMS/AC hybrid supercapacitor demonstrates an ultra-high lithium discharge capacity of 2040 mAh/g. The GMS/AC cell delivered a maximum energy density of 105.3 Wh/kg and a corresponding power density of 308.1 W/kg. It also delivered an energy density of 42.77 Wh/kg at a power density as high as 30,800 W/kg. Our GMS/AC cell’s energy density values are very high compared with those of other reported values of graphene-based hybrid structures. The GMS structures offer significant potential as an electrode material for energy-storage systems and can also enhance the performance of the other electrode materials for LIBs and hybrid supercapacitors.

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Section: Introductionmentioning

confidence: 99%

Ultra-High Energy Density Hybrid Supercapacitors Using MnO2/Reduced Graphene Oxide Hybrid Nanoscrolls

et al. 2020

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“…Electrochemical tests demonstrated a specific capacity of 176.6 mAh g −1 at a rate of 1C, a rate capability of 167 and 143 mAh g −1 at 3C and 10C, respectively, and a capacity retention of 95.4% after 100 cycles at 10C. Pender et al [370,371] reported the fabrication and electrochemical performance of metal-foil free Li 4 Ti 5 O 12 (LTO) and LiNi 1/3 Mn 1/3 Co 1/3 O 2 (NMC) electrodes supported on conductive and porous reduced graphene oxide/poly(acrylic acid) (rGO-PAA) aerogels. This 3D nanocomposite had a low density (~5 mg cm −3 ) and high porosity (99.6% void space) [370].…”

Section: Molybdenum-based Oxide Compositesmentioning

confidence: 97%

“…When applied as a free-standing, 3D current collector in LIBs, the highly porous rGO-PAA substrate increased the effective electrode−electrolyte contact area 2.5-fold (16 mg cm −2 loading) by increasing the electrode surface roughness and thus improving the lithiation/delithiation kinetics of a commercial LFP cathode [372]. The use of rGO-PAA instead of conventional metal-foil (CMF) showed a 25% increase in energy density over similar electrodes built with CMF current collector, i.e., high volumetric energy densities of 1723 Wh L −1 for NMC and 625 Wh L −1 for LTO [371].…”

Section: Molybdenum-based Oxide Compositesmentioning

confidence: 99%

Nanostructured Graphene Oxide-Based Hybrids as Anodes for Lithium-Ion Batteries

Sehrawat

Abid

Islam

et al. 2020

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Presently, the negative electrodes of lithium-ion batteries (LIBs) are constituted by carbon-based materials, which exhibit a limited specific capacity 372 mAh g−1 associated with the cycle in the composition between C and LiC6. Therefore, many efforts are currently made towards the technological development of nanostructured graphene materials because of their extraordinary mechanical, electrical, and electrochemical properties. Recent progress on advanced hybrids based on graphene oxide (GO) and reduced graphene oxide (rGO) has demonstrated the synergistic effects between graphene and an electroactive material (silicon, germanium, metal oxides (MOx)) as electrode for electrochemical devices. In this review, attention is focused on advanced materials based on GO and rGO and their composites used as anode materials for lithium-ion batteries.

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“…Reproduced with permission from Kong et al (2018b). 2019), foam-like current collectors (Mukanova et al, 2017(Mukanova et al, , 2018Lu et al, 2019), porous reduced graphene oxide/poly(acrylic acid) (rGO-PAA) aerogels based current collectors (Pender et al, 2019). These approaches revolve around the idea of changing the planar architecture of conventional current collectors to confine dendritic growth or redirect it away from the separator.…”

Section: Novel Current Collector Concept Materials and Chemistriesmentioning

confidence: 99%

Batteries Safety: Recent Progress and Current Challenges

2019

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In this growing age of clean energy and the use of power storage to circumvent the use of traditional fossil fuel technologies, batteries of greater capacity, storage, and power are increasingly becoming indispensable. New chemistries are being developed to increase the capacity of traditional lithium ion batteries and to develop batteries beyond Lithium ion. Promising high capacity cathodes and anodes are developed however their large-scale deployment is hindered due to safety concerns. In this review, we summarize recent progress of lithium ion batteries safety, highlight current challenges, and outline the most advanced safety features that may be incorporated to improve battery safety for both lithium ion and batteries beyond lithium ion. Of particular interest is the issue of thermal runaway mitigation by incorporation of novel nano-materials and advanced technologies.

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Compact Lithium-Ion Battery Electrodes with Lightweight Reduced Graphene Oxide/Poly(Acrylic Acid) Current Collectors

Cited by 11 publications

References 38 publications

Ultra-High Energy Density Hybrid Supercapacitors Using MnO2/Reduced Graphene Oxide Hybrid Nanoscrolls

Ultra-High Energy Density Hybrid Supercapacitors Using MnO2/Reduced Graphene Oxide Hybrid Nanoscrolls

Nanostructured Graphene Oxide-Based Hybrids as Anodes for Lithium-Ion Batteries

Batteries Safety: Recent Progress and Current Challenges

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