Flexible all-solid-state fiber-shaped Ni–Fe batteries with high electrochemical performance

Li, Qiulong; Zhang, Qichong; Liu, Chenglong; Sun, Juan; Guo, Jiahao; Zhang, Jun; Zhou, Zhenyu; He, Bing; Pan, Zhenghui; Yao, Yagang

doi:10.1039/c8ta09822k

Cited by 74 publications

(55 citation statements)

References 56 publications

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“…Moreover, with the ever‐growing consumer usage of portable and wearable electronics, small, flexible, and lightweight fiber‐shaped Ni‐Fe batteries are regarded as promising energy supply devices. [ 41–45 ] Therefore, the exploration of high‐performance fibrous Fe‐based anodes is still highly valuable and significant for the use in high‐energy‐density wearable 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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“…For instance, Jin et al proposed a shape‐controlled manganese‐doping method to optimize the copper fiber electrode by growing nickel oxide (Mn–NiO) and ferric oxide (Mn–Fe 2 O 3 ) nanocrystals on the surface, which exhibited excellent energy density (61.0 mWh cm −3 ) and power density (48.4 W cm −3 ). In addition, Li et al designed a fiber‐shaped Ni–Fe battery with a CoP@Ni(OH) 2 nanowire array/CNT fiber cathode and a spindle‐like α‐Fe 2 O3/CNT fiber anode. The assembled battery showed an operating voltage of 1.6 V and a high energy density (81.0 mW h cm −3 ).…”

Section: Summary Of Fiber‐shaped Batteriesmentioning

confidence: 99%

An Overview of Fiber‐Shaped Batteries with a Focus on Multifunctionality, Scalability, and Technical Difficulties

et al. 2019

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active materials, [13,14] have been made. However, 1D fiber-shaped batteries offer many intriguing features and promising advantages over the conventional bulky or planar structure batteries: 1) fiber-shaped batteries exhibit high compatibility with the current textile industry. Yarn is an essential element of current fabrics, and fiber-shaped batteries can be considered as functional yarn and woven/knitted into an energy textile. 2) The fabric woven/ knitted from fiber-shaped batteries can be air permeable, which solves the problem that most planar structure batteries possess a leather-like feature impermeable to air. 3) Fiber-shaped batteries can be used to fabricate various flexible power sources with unbeatable flexibility, compatibility, and miniaturization potential, providing diverse possibilities.However, the fiber shape adversely results in a few persistent disadvantages: 1) high internal resistance. The long and thin structure of fiber-shaped batteries results in a very high internal resistance, especially considering that a piece of energy storage fabric may be woven from hundreds of meters of fiber-shaped batteries. 2) Difficult fabrication. Short circuiting must be very carefully avoided during fabrication with the long and thin electrode adopted. 3) Difficult set up of the separator. Most of the current reports used a gel electrolyte as the separator. However, considering practical applications, a specific separator cannot be avoided. Setting up a separator film between two long and thin electrodes is much more difficult than setting up a separator film between two planar structured electrodes. 4) Difficult encapsulation. While most of the current reports did not encapsulate the fiber-shaped battery, encapsulating a long and thin device is clearly difficult. 5) Difficult minimization of the thickness. A battery is an electrochemical device with an electrolyte, a separator and two electrodes. With this complicated structure, the current fiber-shaped batteries are usually much thicker than normal yarns. 6) Unsatisfactory mechanical performance of fiber-shaped batteries for weaving with a machine. The tensile strength and surface friction of fiber-shaped batteries are very different from those of traditional yarns. 7) Difficult achievement of yarn texture. With or without encapsulation, fibershaped batteries possess the texture of plastic wire instead of soft and multistrand yarn. These major problems, together with other minor issues, will be further discussed in detail in Section 7.Flexible and wearable energy storage devices are receiving increasing attention with the ever-growing market of wearable electronics. Fiber-shaped batteries display a unique 1D architecture with the merits of superior flexibility, miniaturization potential, adaptability to deformation, and compatibility with the traditional textile industry, which are especially advantageous for wearable applications. In the recent research frontier in the field of fiber-shaped batteries, in addition to higher performance, advances in mult...

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“…For instance, SCs are extremely shaped by its low energy density while various batteries lack the high power density. Besides, the safety issues in non‐aqueous LIB and Pb‐acid batteries cannot be neglected due to their toxic and flammable organic electrolytes . Accordingly, hybrid supercapacitors (HSC) that tackle the challenges along with the diagonal line of a Ragone plot, by coupling with the high energy advantages of batteries with the high power features of SC, have been developed …”

Section: Introductionmentioning

confidence: 99%

“…In addition, their microscopic morphology should also be considered to remove the seriously restriction to their electrochemical properties caused by their conventional structures. Current advances in novel structures have empowered researchers to restudy heterostructured materials to further enhance their charge storage ability …”

Section: Introductionmentioning

confidence: 99%

“…Current advances in novel structures have empowered researchers to restudy heterostructured materials to further enhance their charge storage ability. [8] On the anode side of HSC, carbonaceous materials are the most suitable electrode materials due to their rather high power densities, unique charge storage mechanism (results from the electric double layer capacitance, abbr. EDLC, a fast physical reversible ions adsorption/desorption process at the electrode/interface), desirable physical properties, controllable porosities and relatively inert electrochemical characters.…”

Section: Introductionmentioning

confidence: 99%

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Solid‐State Hybrid Supercapacitor Assembled from a Heterostructured Co−Ni Battery‐like Cathode and Supercapacitor‐Type Highly Disordered Carbon Nanosheets

et al. 2020

ChemElectroChem

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Hybrid at either the mechanism or the device level can lead to a hybridization effect of the kinetics and electrochemical characteristic of a supercapacitor (SC). Herein, a heterostructured NiCo 2 S 4 /Co x Ni 1-x (OH) 2 battery-like cathode material was designed, with which the obtained sample accomplished the combination of excellent electronic and ionic conductivity so as to realize an enhanced faradaic redox storage process. Besides, a SC-type highly capacitive anode material of a N and S codoped porous carbon nanosheets (ACNS) was also fabricated, which exhibits great advantages in terms of its enlarged specific surface area, the ease of introducing pseudocapacitive reactions, and its physical structure. These features directly lead to significant improvements in the electric double-layer capacitor (EDLC)-type electrochemical properties of the carbon anode. The combination of an EDLC-type carbon anode with the redox-reaction-type cathode in a full cell device could potentially lead to a charge storage process that simultaneously integrates the electrophysical and electrochemical processes. For these reasons, the obtained solid-state hybrid SC delivers a wide voltage window of 1.6 V, a high specific capacity of 121.3 C g À 1 , and enhanced energy/power densities of 26.1 Wh kg À 1 /11 kW kg À 1 . The as-assembled device can maintain a high and stable capacity retention of 89.1 % for over 10 000 cycles. The developed hybrid assembly strategy and the electrode combination may provide design guidelines for designing other high-energy hybrid SCs.

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Flexible all-solid-state fiber-shaped Ni–Fe batteries with high electrochemical performance

Cited by 74 publications

References 56 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

An Overview of Fiber‐Shaped Batteries with a Focus on Multifunctionality, Scalability, and Technical Difficulties

Solid‐State Hybrid Supercapacitor Assembled from a Heterostructured Co−Ni Battery‐like Cathode and Supercapacitor‐Type Highly Disordered Carbon Nanosheets

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Flexible all-solid-state fiber-shaped Ni–Fe batteries with high electrochemical performance

Cited by 74 publications

References 56 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

An Overview of Fiber‐Shaped Batteries with a Focus on Multifunctionality, Scalability, and Technical Difficulties

Solid‐State Hybrid Supercapacitor Assembled from a Heterostructured Co−Ni Battery‐like Cathode and Supercapacitor‐Type Highly Disordered Carbon Nanosheets

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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