Bacterial cellulose hydrogel: A promising electrolyte for flexible zinc-air batteries

Zhang, Yanan; Chen, Yajun; Li, Xin; Mensah, Alfred; Li, Dawei; Huang, Fenglin; Wei, Qufu

doi:10.1016/j.jpowsour.2020.228963

Cited by 76 publications

(53 citation statements)

References 25 publications

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“…There are many types of gel matrices such as PVA, PEO, PAA, and so forth. There are various gel networks (or polymer skeletons) that can be used to prepare GPEs, such as poly(ethylene oxide) (PEO), poly(acrylic acid) (PAA), poly(acrylonitrile) (PAN), poly(acrylamide) (PAM), poly(vinyl alcohol) (PVA), etc 89,92,93 . These polymer skeletons are used as mechanical matrices that can ensure high ionic conductivity, good mechanical properties, and flexibility in electrolytes.…”

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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“…Aside from alkaline gel electrolytes, modified cellulosebased electrolytes emerge as another competitive category for FZABs in view of biodegradability, the 3D nanofibrous network, increased mechanical strength and good chemical/ thermal stability of naturally abundant cellulose. [152] Chen et al designed a laminate-structured membrane electrolyte of quaternary ammonium-functionalized nanocellulose/GO, which is proved to be highly ionic conductive (0.050 S cm −1 at 70 °C) and favor the adhesion to the electrode, leading to the high power output (≈50 mW cm −2 ) and structural stability of FZABs even under different bending states. [153] Zhao et al reinforced PVA by introducing bacterial cellulose (BC) to form PVA/BC composite hydrogel electrolytes, showing excellent tensile strength (0.951 MPa) and super high ionic conductivity (0.081 S cm −1 at 25 °C).…”

Section: Cathode/electrolyte Interfaces and Polymeric Electrolytesmentioning

confidence: 99%

Integrated Bifunctional Oxygen Electrodes for Flexible Zinc–Air Batteries: From Electrode Designing to Wearable Energy Storage

Yang

et al. 2021

Adv Materials Technologies

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The global market of flexible/printed and organic electronics is about 41 billion dollars in 2020, which is expected to reach over 74 billion dollars in 2030 according to the relevant reports by IDTechEx. [3] As for the development and expansion toward practical application, flexible/wearable electronics urgently request for flexible energy sources and power devices with high specific energy density and long lifetime. During the past decade, a variety of flexible energy harvesting/conversion (e.g., solar cells, nanogenerators) and energy storage devices (e.g., batteries, supercapacitors, hybrid batteries) have dedicatedly progressed and gained ongoing recognition for future wearable applications. [4][5][6] Among those promising renewable energy technologies, rechargeable lithium-ion batteries (LIBs) have received widespread adoptions for power supplies ranging from mobile/portable electronics to plug-in/ hybrid electric vehicles because of their high working voltage, appreciable energy density, easy use, and ecofriendliness. [7] Flexible LIBs became one of the potential options for powering flexible electronics. With further advance, flexible LIBs are plagued by their limited energy density, deficient safety, and relatively high cost of electrode materials (e.g., lithium, cobalt). In this case, alternative battery technologies, especially metal-air batteries gain immense attention (Table 1). [8,9] Metal-air batteries (MABs) own 2-10 times higher specific energy than current LIBs (200-250 Wh kg −1 ) due to the direct utilization of oxygen from the atmosphere within a halfopen device system. Alongside, rechargeable MABs have more freedom in metallic anodes such as lithium, sodium, potassium, zinc, aluminum and magnesium, etc., where the latter three-based MABs are compatible with aqueous alkaline electrolytes and also intrigued numerous interest. [10][11][12] Given the high theoretical specific energy (1218 Wh kg −1 , 6136 Wh L −1 ), low fabrication cost, high operational safety and environmental benignancy, aqueous zinc-air batteries (ZABs) show far more practical prospect for new-generation energy storage sources. [11] Figure 1 illustrates the brief chronology of the development of ZABs. Dating back to 1878, the first The strong propulsion stem from flexible/wearable electronics has greatly stimulated the development of miniaturized and high-performance rechargeable batteries with adaptable shape. Flexible zinc-air batteries (FZABs), which exhibit high theoretical energy density (1218 Wh kg −1 ), low cost, environmental benignancy, and admirable operational safety, have been widely recognized as one of the promising portable powers to serve future wearable electronics for ubiquitous application. During the past five years, the energy/ power density and cycling stability of FZABs have gained significant improvement largely due to the rational construction of high-efficiency bifunctional air electrodes. Herein, the recent progress of integrated binder-free bifunctional oxygen electrodes is overviewed via elaborate ...

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“…Their characteristics make them suitable for use in the treatment of effluents from various industrial sectors, such as the medical-pharmaceutical [18], food [17], cosmetic [73], electronic [74][75][76] and packaging [56,77] ones, as ultrafiltration membranes [45,78] or separate apolar effluents [10,79].…”

Section: Bacterial Cellulose Membranesmentioning

confidence: 99%

Biocellulose for Treatment of Wastewaters Generated by Energy Consuming Industries: A Review

et al. 2021

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Water and energy are two of the most important resources used by humanity. Discharging highly polluting wastewater without prior treatment is known to adversely affect water potability, agriculture, aquatic life and even society. One of the greatest threats to water sources are contaminated effluents, which can be of residential or industrial origin and whose disposal in nature must comply with specific laws aimed at reducing their environmental impact. As the oil industry is closely related to energy consumption, it is among the sectors most responsible for global pollution. The damage caused by this industrial sector is present in all countries, whose legislations require companies to carry out wastewater treatment before disposal or recycling in their production process. Bacterial cellulose membranes have been shown to be efficient as filters for the removal of various contaminants, including biological and chemical agents or heavy metals. Therefore, their use could make an important contribution to bio-based technological development in the circular economy. Moreover, they can be used to produce new materials for industry, taking into consideration current environmental preservation policies aimed at a more efficient use of energy. This review aims to compare and describe the applications of cellulose membranes in the treatment of these effluents.

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Bacterial cellulose hydrogel: A promising electrolyte for flexible zinc-air batteries

Cited by 76 publications

References 25 publications

Recent progress and future perspectives of flexible metal‐air batteries

Recent progress and future perspectives of flexible metal‐air batteries

Integrated Bifunctional Oxygen Electrodes for Flexible Zinc–Air Batteries: From Electrode Designing to Wearable Energy Storage

Biocellulose for Treatment of Wastewaters Generated by Energy Consuming Industries: A Review

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