Recent Progress on Flexible Zn-Air Batteries

Zhang, Yongguang; Deng, Yaping; Wang, Jiayi; Jiang, Yi; Cui, Guoliang; Shui, Lingling; Yu, Aiping; Wang, Xin; Chen, Zhongwei

doi:10.1016/j.ensm.2020.09.008

Cited by 192 publications

(97 citation statements)

References 110 publications

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“…To simplify the process and reduce costs, a flexible Zn anode can be manufactured as fiber or ribbon type. Typically, a spiral or spring‐shaped Zn anode with good stretchability, flexibility, and stability can be obtained by winding Zn wires or Zn foils on a rod such as stainless steel 16,76 . This method is usually used to fabricate fiber‐shaped or cable‐type flexible ZABs which even can be processed or woven into wearable flexible electronic products.…”

Section: Flexible Zn‐air Batteriesmentioning

confidence: 99%

Recent progress and future perspectives of flexible metal‐air batteries

Peng

et al. 2021

SmartMat

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With the rapid development of wearable and intelligent flexible electronic devices (FEDs), the demand for flexible energy storage/conversion devices (ESCDs) has also increased. Rechargeable flexible metal‐air batteries (MABs) are expected to be one of the most ideal ESCDs due to their high theoretical energy density, cost advantage, and strong deformation adaptability. With the improvement of the device design, material assemblies, and manufacturing technology, the research on the electrochemical performance of flexible MABs has made significant progress. However, achieving the high mechanical flexibility, high safety, and wearable comfortability required by FEDs while maintaining the high performance of flexible MABs are still a daunting challenge. In this review, flexible Zn‐air and Li‐air batteries are mainly exemplified to describe the most recent progress and challenges of flexible MABs. We start with an overview of the structure and configuration of the flexible MABs and discuss their impact on battery performance and function. Then it focuses on the research progress of flexible metal anodes, gel polymer electrolytes, and air cathodes. Finally, the main challenges and future research perspectives involving flexible MABs for FEDs are proposed.

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Section: Flexible Zn‐air Batteriesmentioning

confidence: 99%

Recent progress and future perspectives of flexible metal‐air batteries

Peng

et al. 2021

SmartMat

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“…employing the non-combustible hydrogel electrolytes (HEs) with better safety offer a promising alternative power solution to support the booming wearable electronics. [1][2][3][4] The bifunctional electrocatalysts facilitating the kinetics of the oxygen reduction reaction (ORR)/oxygen evolution reaction (OER) occurred at the air cathode, and the Zn metal anode (ZMA) troubling with poor thermodynamic and electrochemical stabilities in frequentlyused strong corrosive alkaline electrolyte are considered as the key factors determining the energy efficiency of the assembled FSZABs. [5,6] Therefore, most of the previous studies focusing on FSZABs are mainly restricted to the catalytic performance improvement of bifunctional electrocatalysts loaded on the air cathode and durability enhancement of ZMA.…”

Section: Doi: 101002/smtd202101276mentioning

confidence: 99%

Synergetic Chemistry and Interface Engineering of Hydrogel Electrolyte to Strengthen Durability of Solid‐State Zn–Air Batteries

Tang

et al. 2021

Small Methods

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“…[ 1 ] A safe, effective and low‐cost power source is a prerequisite for the wide application of flexible electronic devices. [ 2 ] Although lithium‐ion batteries dominate the current energy market ranging from portable electronics to electric vehicles, their future development is restricted by inadequate supply of lithium, insufficient energy density and poor security performance. [ 3 ] The flexible metal‐air batteries straightforwardly using oxygen as cathodic material are considered one of the most hopeful energy power sources for flexible electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Flexible Zinc–Air Battery with High Energy Efficiency and Freezing Tolerance Enabled by DMSO‐Based Organohydrogel Electrolyte

Jiang

Wang

et al. 2021

Small Methods

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With the emergence of various flexible electronics, the flexible zinc–air battery (ZAB) is considered a promising energy source with low cost, high energy density, and safety. However, gel electrolytes that improve the freezing tolerance and energy efficiency of ZABs are rarely explored. Herein, an organohydrogel electrolyte (OHE) is fabricated by soaking poly(2‐acrylamido‐2‐methylpropanesulfonic acid)/polyacrylamide (PAMPS/PAAm) double‐network hydrogel in aqueous KOH electrolyte with dimethyl sulfoxide (DMSO) additive. The prepared OHE exhibits high mechanical strength and excellent ionic conductivity. In addition, the introduction of DMSO effectively improves freezing tolerance and electrochemical performance especially in energy efficiency of ZABs due to that DMSO can break the hydrogen bonds between water molecules and alter the path of the conventional oxygen evolution reaction in ZAB simultaneously. Compared with the control hydrogel electrolyte, the optimized OHE enables flexible ZABs to not only exhibit an exceptionally low charge voltage of 1.63 V, high energy efficiency of 74.2%, and long cycling life of 177 cycles, but also to operate with an excellent specific capacity of 562 mAh g−1 and energy density of 523.4 Wh kg−1 at −40 °C. Moreover, the obtained flexible ZABs keep a stable output under deformations and extreme low temperature, manifesting a great potential for functional wearable devices.

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Recent Progress on Flexible Zn-Air Batteries

Cited by 192 publications

References 110 publications

Recent progress and future perspectives of flexible metal‐air batteries

Recent progress and future perspectives of flexible metal‐air batteries

Synergetic Chemistry and Interface Engineering of Hydrogel Electrolyte to Strengthen Durability of Solid‐State Zn–Air Batteries

Flexible Zinc–Air Battery with High Energy Efficiency and Freezing Tolerance Enabled by DMSO‐Based Organohydrogel Electrolyte

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