A novel flexible fiber-shaped dual-ion battery with high energy density based on omnidirectional porous Al wire anode

Song, Chenhui; Li, Yongpeng; Li, Hui; He, Tao; Guan, Qun; Yang, Jie; Li, Xuelian; Cheng, Jianli; Wang, Bin

doi:10.1016/j.nanoen.2019.03.062

Cited by 55 publications

(48 citation statements)

References 52 publications

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“…Particularly, fiber-shaped energy storage devices (FESDs) have great potential due to the miniature volume, excellent flexibility and textile property [15,[19][20][21][22][23]. Unfortunately, the low energy density restricts their practical applications in daily life [21,22,24]. Therefore, more and more efforts have been made to enhance the energy density of FESDs.…”

Section: Introductionmentioning

confidence: 99%

Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery

Liu

Cao³

et al. 2020

Science Bulletin

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Section: Introductionmentioning

confidence: 99%

Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery

Liu

Cao³

et al. 2020

Science Bulletin

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“…The as‐fabricated fiber‐shaped battery delivered an excellent specific capacity (0.092 mAh cm −2 ) and an energy density of 30.61 mWh cm −3 . Song et al proposed a novel design of fiber‐shaped dual‐ion batteries (DIBs) with omnidirectional porous Al wire as the anode and graphite on the Al wire as the cathode. During charge/discharge processes, the Li + and PF 6 − ions moved back and forth, accompanied by reversible PF 6 − anion intercalation/deintercalation into/from the graphite interlayers.…”

Section: Summary Of Fiber‐shaped Batteriesmentioning

confidence: 99%

Section: From Fiber‐shaped Batteries To Fabric Batteriesmentioning

confidence: 99%

“…In this work, the fiber‐shaped batteries could be integrated into smart textiles as power accessories to light up an LED, drive a wireless mouse, and actuate a shape memory nitinol wire attached to a textile screen. Furthermore, Song et al prepared 18.1 cm long fiber‐shaped DIBs with omnidirectional porous Al wire and graphite‐coated Al wire as electrodes, which could be woven into wearable textiles to continuously power electronic devices such as digital watches and LED lamps (Figure h).…”

Section: From Fiber‐shaped Batteries To Fabric Batteriesmentioning

confidence: 99%

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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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“…[160][161][162] Wire-type batteries are omnidirectionally flexible, which can survive from complicated deformations (e.g., bending, twisting, folding, and tying) (Figure 13a). [88,161,[163][164][165][166][167] Besides, wire-type batteries are capable of woven, knitted, or embroidered into functional textiles due to their small feature size (Figure 13b). [88] Fang et al reported the first example of wire-type Li-S battery by wrapping S encapsulated particles inside lightweight CNT fibers (68 wt% for S).…”

Section: Wire-type Li-s Batterymentioning

confidence: 99%

Fibrous Materials for Flexible Li–S Battery

Gao

Guo

Zhang

et al. 2020

Advanced Energy Materials

100

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density and good flexibility. [6][7][8][9][10] Among various battery technologies, lithiumsulfur (Li-S) batteries have received considerable attention due to their ultrahigh theoretical energy density (2567 Wh kg −1 ), environmental benignancy, and low cost of S. [11][12][13] However, their applications in the wearable electronics are hampered by the severe interfacial issues, e.g., the formation of Li dendrites and the shuttle effect of polysulfide, which occur in the Li-S chemistries. [14][15][16][17][18] In addition, most Li-S batteries exhibit poor mechanical stability and low areal capacity. [11,12,18] During the past decades, there is an increasing interest in the development of cutting-edge materials that can simultaneously endow Li-S batteries with high energy, long cycle life, and good flexibility. [11,18,19] Among those, fibrous materials represent a promising option attributing to their large surface area (10 2-3 m 2 kg −1 ), lightweight, good flexibility, and cost-effectiveness. Generally, fibrous materials are in the form of high-aspect-ratio (>50) fibers, filaments, yarns, and their superstructures with the geometrical sizes from several hundreds of nanometer to meter. [20] Material wise, they consist of metals, carbons, ceramics, polymers, and composites of those. [21][22][23][24][25] The fibrous materials provide a solid, hollow, coreshell, or hierarchically porous structure. [26][27][28][29][30] Mechanically, most of the fibrous materials are flexible and even stretchable, which can sustain complex deformations. [31][32][33] Technically, fibrous materials and their assemblies are highly manufacturable via various high-throughput methods such as spinning, vacuum infiltration, and textile technology. [34][35][36] With these appealing properties, fibrous materials have been demonstrated to serve as different battery components of Li-S batteries (Figure 1), including current collectors of both Li anodes and S cathodes, buffer layers, interlayers, and solid-state electrolytes (SSEs).Considering the great promises of utilizing fibrous materials in Li-S batteries, this review presents the recent advances of this rapidly developing area. We first introduce the working principles and the challenges of Li-S batteries (Section 2). We then give an overview of the advantages of using fibrous materials for flexible Li-S batteries (Section 3). After that, we provide an in-depth discussion on the preparation of fibrous materials and the design of fibrous structures and functionalities for flexible current collectors (Section 4) and flexible interfacial layers (Section 5) of Li-S batteries, with a special focus on the enhancements of electrochemical and mechanical performances of Li anodes and S cathodes. Regarding the device-level performance, we finally highlight several layouts of flexible Li-S batteries including wire-type battery, battery with integrated architecture, and foldable battery (Section 6).The lithium-sulfur (Li-S) battery is an attractive high-energy-density technology for future flexible and wea...

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A novel flexible fiber-shaped dual-ion battery with high energy density based on omnidirectional porous Al wire anode

Cited by 55 publications

References 52 publications

Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery

Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery

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

Fibrous Materials for Flexible Li–S Battery

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