NiFe nanoparticles embedded N-doped carbon nanotubes as high-efficient electrocatalysts for wearable solid-state Zn-air batteries

Lei, Hang; Wang, Zilong; Yang, Fan; Huang, Xueqi; Jing-huan, Liu; Liang, Yongyin; Xie, Junpeng; Javed, Muhammad Sufyan; Lu, Xihong; Tan, Shaozao; Mai, Wenjie

doi:10.1016/j.nanoen.2019.104293

Cited by 220 publications

(113 citation statements)

References 49 publications

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“…Increasing efforts are undertaken continuously to develop high‐performance aqueous rechargeable batteries as the frontrunner to replace the dominant Li‐ion batteries for industrial energy storage due to the scarce Li resources and toxic organic electrolytes. [ 1–34 ] Among various aqueous rechargeable batteries, aqueous secondary Ni‐Fe batteries with the abundant constituent elements, low cost, and ultra‐flat discharge plateau have attracted widespread attention. [ 35–40 ] Although a significant progress has been achieved for Ni‐based cathode materials, the lack of high‐capacity Fe‐based anode materials remains a stumbling block preventing further improvements of the energy density of aqueous rechargeable Ni‐Fe batteries.…”

Section: Introductionmentioning

confidence: 99%

Rational Construction of Self‐Standing Sulfur‐Doped Fe₂O₃ Anodes with Promoted Energy Storage Capability for Wearable Aqueous Rechargeable NiCo‐Fe Batteries

Yang

Zhang

Wang

et al. 2020

Advanced Energy Materials

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Aqueous rechargeable Ni‐Fe batteries featuring an ultra‐flat discharge plateau, low cost, and outstanding safety characteristics show promising prospects for application in wearable energy storage. In particular, fiber‐shaped Ni‐Fe batteries will enable textile‐based energy supply for wearable electronics. However, the development of fiber‐shaped Ni‐Fe batteries is currently challenged by the performance of fibrous Fe‐based anode materials. In this context, this study describes the fabrication of sulfur‐doped Fe2O3 nanowire arrays (S‐Fe2O3 NWAs) grown on carbon nanotube fibers (CNTFs) as an innovative anode material (S‐Fe2O3 NWAs/CNTF). Encouragingly, first‐principle calculations reveal that S‐doping in Fe2O3 can dramatically reduce the band gap from 2.34 to 1.18 eV and thus enhance electronic conductivity. The novel developed S‐Fe2O3 NWAs/CNTF electrode is further demonstrated to deliver a very high capacity of 0.81 mAh cm−2 at 4 mA cm−2. This value is almost sixfold higher than that of the pristine Fe2O3 NWAs/CNTF electrode. When a cathode containing zinc‐nickel‐cobalt oxide (ZNCO)@Ni(OH)2 NWAs heterostructures is used, 0.46 mAh cm−2 capacity and 67.32 mWh cm−3 energy density are obtained for quasi‐solid‐state fiber‐shaped NiCo‐Fe batteries, which outperform most state‐of‐the‐art fiber‐shaped aqueous rechargeable batteries. These findings offer an innovative and feasible route to design high‐performance Fe‐based anodes and may inspire new development for the next‐generation wearable Ni‐Fe batteries.

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Section: Introductionmentioning

confidence: 99%

Rational Construction of Self‐Standing Sulfur‐Doped Fe₂O₃ Anodes with Promoted Energy Storage Capability for Wearable Aqueous Rechargeable NiCo‐Fe Batteries

Yang

Zhang

Wang

et al. 2020

Advanced Energy Materials

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“…As for wearable energy storage devices, the solid‐state secondary aqueous battery is an ideal choice, especially the family of rechargeable Zn batteries (ZnAg 2 O, ZnMnO 2 , Znair ZnNiOOH, etc. [ 13,19–23 ] ). Though the energy density of aqueous Zn batteries is smaller than that of Li‐ion batteries, the Zn batteries outstand for the high power density, safety, and low cost.…”

Section: Introductionmentioning

confidence: 99%

Stretchable Textile Rechargeable Zn Batteries Enabled by a Wax Dyeing Method

Guo

Liu

Cong

et al. 2020

Adv Materials Technologies

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The development of smart electronic textiles faces one challenge that the power devices should be as comfortable, lightweight, and flexible as that of common fabrics. Herein, a stretchable textile‐based rechargeable Zn microbattery fabricated through a method analogous to Chinese traditional Batik wax dyeing is reported. Conductive metal coatings (Ni and Cu) in arbitrary patterns are prepared on a variety of fabrics, either hydrophobic or hydrophilic. The resistance of a knitted conductive textile is fully recoverable and extremely stable even after 1000 cycles of stretching to 50% tensile strain, due to the absence of damage in the conformal metal coatings. An in‐plane rechargeable alkaline Zn microbattery is then fabricated on the conductive textile using Zn as the anode and NiCo bimetallic oxyhydroxide as the cathode, achieving an areal capacity about 0.45 mAh cm−2. Stable stretchability of the textile Zn microbattery is also demonstrated. The stretchable textile conductors and rechargeable Zn microbatteries suggest great potentials in stretchable electronics or electronic textiles.

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“…Lei et al. have reported the longest cycle life (80 cycles) for solid‐state ZABs at a low current density of 1 mA cm −2 . Direct comparisons are difficult to make among the various references, since tests were not done under the same operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Effects of Crosslinker Concentration in Poly(Acrylic Acid)‐KOH Gel Electrolyte on Performance of Zinc‐Air Batteries

Tran

Clark

Chung

et al. 2020

Batteries & Supercaps

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Zinc-air batteries (ZABs) using gel polymer electrolytes suffer from low energy efficiency and poor cyclability. This issue is not only associated with the air electrode, as early failure of the battery is often due to the Zn electrode. Here, the cycle life of ZABs using alkaline poly(acrylic acid) (PAA-KOH) as the electrolyte is shown to vary by changing its crosslinking density. For ZABs using hydrogel electrolytes, understanding the failure mechanism and optimization of the hydrogel composition are key to achieving better utilization of the Zn electrode and battery rechargeability. In addition, the effects of crosslinker concentration on rheological properties, sol-gel fraction, ionic conductivity, and water retention ability of the hydrogel are discussed. PAA-KOH gels with lower crosslinking concentrations are weaker, but they have higher conductivity and better water retention, whereas gels with higher crosslinking concentrations affect the diffusion of zincate ions and facilitate passivation of the Zn electrode, resulting in early failure of the battery.[a] T.

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NiFe nanoparticles embedded N-doped carbon nanotubes as high-efficient electrocatalysts for wearable solid-state Zn-air batteries

Cited by 220 publications

References 49 publications

Rational Construction of Self‐Standing Sulfur‐Doped Fe₂O₃ Anodes with Promoted Energy Storage Capability for Wearable Aqueous Rechargeable NiCo‐Fe Batteries

Rational Construction of Self‐Standing Sulfur‐Doped Fe₂O₃ Anodes with Promoted Energy Storage Capability for Wearable Aqueous Rechargeable NiCo‐Fe Batteries

Stretchable Textile Rechargeable Zn Batteries Enabled by a Wax Dyeing Method

Effects of Crosslinker Concentration in Poly(Acrylic Acid)‐KOH Gel Electrolyte on Performance of Zinc‐Air Batteries

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NiFe nanoparticles embedded N-doped carbon nanotubes as high-efficient electrocatalysts for wearable solid-state Zn-air batteries

Cited by 220 publications

References 49 publications

Rational Construction of Self‐Standing Sulfur‐Doped Fe2O3 Anodes with Promoted Energy Storage Capability for Wearable Aqueous Rechargeable NiCo‐Fe Batteries

Rational Construction of Self‐Standing Sulfur‐Doped Fe2O3 Anodes with Promoted Energy Storage Capability for Wearable Aqueous Rechargeable NiCo‐Fe Batteries

Stretchable Textile Rechargeable Zn Batteries Enabled by a Wax Dyeing Method

Effects of Crosslinker Concentration in Poly(Acrylic Acid)‐KOH Gel Electrolyte on Performance of Zinc‐Air Batteries

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Rational Construction of Self‐Standing Sulfur‐Doped Fe₂O₃ Anodes with Promoted Energy Storage Capability for Wearable Aqueous Rechargeable NiCo‐Fe Batteries

Rational Construction of Self‐Standing Sulfur‐Doped Fe₂O₃ Anodes with Promoted Energy Storage Capability for Wearable Aqueous Rechargeable NiCo‐Fe Batteries