Liquid exfoliation of interlayer spacing-tunable 2D vanadium oxide nanosheets: High capacity and rate handling Li-ion battery cathodes

Zhang, Chuanfang; Park, Sang Hoon; O’Brien, Sean; Seral‐Ascaso, Andrés; Liang, Meiying; Hanlon, Damien; Dileep, K.; Crossley, Alison; McEvoy, Niall; Coleman, Jonathan N.; Nicolosi, Valeria

doi:10.1016/j.nanoen.2017.06.044

Cited by 126 publications

(71 citation statements)

References 75 publications

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“…Nanotechnology solution has been used to compensate the intrinsic disadvantages of cathode materials by shortening the ion diffusion time tremendously. Numerous V 2 O 5 nanostructures, including nanoparticles, nanowires, nanobelts, nanosheets, nanoflower and etc., have been studied to investigate the significance of nanoscopic architectures towards their electrochemical performances [19][20][21][22][23][24] . However, it is found that their influence in boosting the power density is still very limited.…”

Section: Introductionmentioning

confidence: 99%

3D porous V2O5 architectures for high-rate lithium storage

Chen

Tan

et al. 2020

Journal of Energy Chemistry

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Section: Introductionmentioning

confidence: 99%

3D porous V2O5 architectures for high-rate lithium storage

Chen

Tan

et al. 2020

Journal of Energy Chemistry

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“…The corresponding types of lithiation/delithiation (capacitive/diffusion processes) can be analyzed by Equations (2) and (3). [33][34][35] i ¼ av b ð2Þ Where i and v represent the currenta nd sweep rate, respectively,a nd a and b refer to constants. Consequently,t he b value of Fe 2 O 3 /GR can be quantified from the plots of log i versus log v for peaks 1a nd 2( 0.96 and 0.93, Figure 4b), [36,37] giving av alue approaching1 .0, [38,39] suggesting the kinetics of lithiation/delithiation are dominated by capacitive behavior.…”

Section: Resultsmentioning

confidence: 99%

Advanced Li‐Ion Batteries with High Rate, Stability, and Mass Loading Based on Graphene Ribbon Hybrid Networks

Zhang

Wei

Jiang

et al. 2019

Chemistry A European J

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To optimize the cycle life and rate performance of lithium-ion batteries (LIBs), ultra-fine Fe 2 O 3 nanowires with a diameter of approximately 2nmu niformly anchoredo na cross-linked graphene ribbon network are fabricated. The unique three-dimensional structure can effectively improve the electrical conductivity and facilitate ion diffusion,e specially cross-plane diffusion. Moreover,F e 2 O 3 nanowires on graphene ribbons( Fe 2 O 3 /GR) are easilya ccessible for lithium ions compared with the traditional graphene sheets (Fe 2 O 3 / GS). In addition, the well-developed elastic network can not only undergo the drastic volume expansionduring repetitive cycling, but also protect the bulk electrode from further pulverization. As ar esult,t he Fe 2 O 3 /GR hybrid exhibits high rate and long cycle life Li storagep erformance (632 mAh g À1 at 5Ag À1 ,a nd 471 mAh g À1 capacity maintained even after 3000 cycles). Especially at high mass loading(% 4mgcm À2 ), the Fe 2 O 3 /GR can still deliver higher reversible capacity (223 mAh g À1 even at 2Ag À1 )c ompared with the Fe 2 O 3 /GS (37 mAh g À1 )f or LIBs.Scheme1.Schematicoft he synthesis procedureofF e 2 O 3 nanowires anchored on GR, and the corresponding Li ion transfer pathwaysf or Fe Supporting information and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

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“…Nanostructured vanadium oxides (such as V 2 O 5 ) are considered as promising active cathode materials in LIBs as well. Recently, V 2 O 5 nanobelts/MWCNTs, [ 238 ] V 2 O 5 nanosheets/SWCNTs, [ 239 ] and V 2 O 5 nanowires/MWCNTs [ 240 ] have been fabricated based on CNT substrates and have served as binder‐free cathodes for LIBs with impressive electrochemical performances. For instance, Rui et al [ 238 ] fabricated binder‐free bulky papers by simply mixing single‐crystalline V 2 O 5 nanobelts with acid‐treated MWCNTs homogeneously, followed by suction filtration.…”

Section: Binder‐free Nanostructured Electrodes For Libsmentioning

confidence: 99%

“…The relationship between loading mass of active materials and prices of corresponding supporting matrixes for binder‐free electrodes in LIBs. [ 48–109,141–240 ] ...…”

Section: Applications Of Binder‐free Nanostructured Electrodes For Fumentioning

confidence: 99%

Advanced Matrixes for Binder‐Free Nanostructured Electrodes in Lithium‐Ion Batteries

et al. 2020

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Commercial lithium‐ion batteries (LIBs), limited by their insufficient reversible capacity, short cyclability, and high cost, are facing ever‐growing requirements for further increases in power capability, energy density, lifespan, and flexibility. The presence of insulating and electrochemically inactive binders in commercial LIB electrodes causes uneven active material distribution and poor contact of these materials with substrates, reducing battery performance. Thus, nanostructured electrodes with binder‐free designs are developed and have numerous advantages including large surface area, robust adhesion to substrates, high areal/specific capacity, fast electron/ion transfer, and free space for alleviating volume expansion, leading to superior battery performance. Herein, recent progress on different kinds of supporting matrixes including metals, carbonaceous materials, and polymers as well as other substrates for binder‐free nanostructured electrodes in LIBs are summarized systematically. Furthermore, the potential applications of these binder‐free nanostructured electrodes in practical full‐cell‐configuration LIBs, in particular fully flexible/stretchable LIBs, are outlined in detail. Finally, the future opportunities and challenges for such full‐cell LIBs based on binder‐free nanostructured electrodes are discussed.

show abstract

Liquid exfoliation of interlayer spacing-tunable 2D vanadium oxide nanosheets: High capacity and rate handling Li-ion battery cathodes

Cited by 126 publications

References 75 publications

3D porous V2O5 architectures for high-rate lithium storage

3D porous V2O5 architectures for high-rate lithium storage

Advanced Li‐Ion Batteries with High Rate, Stability, and Mass Loading Based on Graphene Ribbon Hybrid Networks

Advanced Matrixes for Binder‐Free Nanostructured Electrodes in Lithium‐Ion Batteries

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