An environmentally adaptive quasi-solid-state zinc-ion battery based on magnesium vanadate hydrate with commercial-level mass loading and anti-freezing gel electrolyte

Zhou, Weijun; Chen, Jizhang; Chen, Minfeng; Wang, Anran; Huang, Aixiang; Xu, Xinwu; Xu, Junling; Wong, Ching‐Ping

doi:10.1039/d0ta01033b

Cited by 127 publications

(50 citation statements)

References 72 publications

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“…According to the Nyquist plots in Figure 1E , the ionic conductivity values of gel electrolytes can be calculated. The calculation details can be found in our previous reports (Chen et al, 2020 ; Zhou et al, 2020 ). At a temperature of 20°C, the PAM/GO/EG gel electrolyte demonstrates a high ionic conductivity of 19.8 mS cm −1 , which drops to 17.9 and 14.9 mS cm −1 when the temperature declines to 0 and −20°C, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…However, energy-storage devices are required to work in low-temperature environments, since it is cold in winter in many regions around the world. It has been reported that adding cryoprotectants such as glycerol and ethylene glycol (EG) into gel electrolytes can realize good anti-freezing capabilities (Mo et al, 2019 ; Zhou et al, 2020 ). In our previous report, we developed a borax-cross-linked PVA/glycerol gel electrolyte, in which glycerol can interact with PVA chains strongly, thus effectively preventing the formation of ice crystals within the whole gel network (Chen et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

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High-Performance Anti-freezing Flexible Zn-MnO2 Battery Based on Polyacrylamide/Graphene Oxide/Ethylene Glycol Gel Electrolyte

et al. 2020

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It remains a great challenge for aqueous zinc-ion batteries to work at subzero temperatures, since the water in aqueous electrolytes would freeze and inhibit the transportation of electrolyte ions, inevitably leading to performance deterioration. In this work, we propose an anti-freezing gel electrolyte that contains polyacrylamide, graphene oxide, and ethylene glycol. The graphene oxide can not only enhance the mechanical properties of gel electrolyte but also help construct a three-dimensional macroporous network that facilitates ionic transport, while the ethylene glycol can improve freezing resistance. Due to the synergistic effect, the gel electrolyte exhibits high ionic conductivity (e.g., 14.9 mS cm −1 at −20 • C) and good mechanical properties in comparison with neat polyacrylamide gel electrolyte. Benefiting from that, the assembled flexible quasi-solid-state Zn-MnO 2 battery exhibits good electrochemical durability and superior tolerance to extreme working conditions. This work provides new perspectives to develop flexible electrochemical energy storage devices with great environmental adaptability.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-Performance Anti-freezing Flexible Zn-MnO2 Battery Based on Polyacrylamide/Graphene Oxide/Ethylene Glycol Gel Electrolyte

et al. 2020

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“…Besides, glycerol/water also shows good freeze‐resistant property for zinc metal energy storage devices. A PVA/glycerol anti‐freezing gel electrolyte with an ionic conductivity of 10.7 mS cm −1 at −30 °C was reported by Wong and coworkers [31c] . The Zn−δ−MgVO battery assembled with this electrolyte can work from −30 °C to 60 °C.…”

Section: Design Of Anti‐freezing Electrolytesmentioning

confidence: 90%

“…Wong et al. reported a Mg 0.19 V 2 O 5 ⋅ 0.99H 2 O material for anti‐freezing zinc‐ion batteries (Figure 6c) [31c] . Mg 2+ and H 2 O molecules acted as pillars between the layers to stabilize the structure during charge and discharge.…”

Section: Low‐temperature‐resistant Cathode Materialsmentioning

confidence: 99%

Zinc Metal Energy Storage Devices under Extreme Conditions of Low Temperatures

2020

Batteries & Supercaps

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Zinc‐based energy storage devices have received extensive attention because of their low‐cost and high‐safety characteristics. Numerous breakthroughs have been made in this field in recent years. Some special applications, such as polar inspections, oil exploration, high‐altitude drones, aerospace, and cold regions, place higher requirements on the performance of zinc‐based energy storage devices under extreme conditions of low temperatures. However, aqueous electrolytes will freeze at sub‐zero temperatures, resulting in device failure. Besides, the sluggish kinetics of the electrodes at low temperatures limits their capacity retention and rate performance. During the past several years, considerable efforts have been devoted to circumventing these problems. In this review, we summarize the recent progress on zinc metal energy storage devices under extreme conditions of low temperatures. Three aspects including the design of anti‐freezing electrolytes, low‐temperature‐resistant cathode materials, and zinc anodes are discussed. Finally, a perspective on this field is summarized to guide future researches.

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“…Further investigation manifested that fabricated battery exhibited robustness and flexibility which can light up LED lights. Wong [ 133 ] and co‐workers [ 134 ] also developed poly(vinyl alcohol) (PVA)/glycerol gel electrolyte which exhibits anti‐freezing ability (Figure 15b). The borax crosslinking in the framework strongly interact with PVA chains, hence effectively prohibiting the formation of ice crystals within the whole gel network.…”

Section: Hybrid Polymer Electrolytesmentioning

confidence: 99%

Insights on Flexible Zinc‐Ion Batteries from Lab Research to Commercialization

et al. 2021

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fields such as healthcare, automotive, and aviation. Among them, flexible and wearable electronics exhibit a growing interest such as implantable medical devices, [1] wearable health monitoring systems, [1,2] flexible displays, [3] and smart clothes. [4] Conventional devices utilizing rigid and relatively unsafe lithium-ion batteries (LIBs) as the power supply cannot satisfy the future requirements of biocompatible and flexible features. Moreover, the bottleneck of flexible LIBs, such as the high cost, safety issues and intricate manufacturing requirements restrict the commercialization of flexible LIBs. As promising alternatives, aqueous zinc-ion batteries (AZIBs) have attracted a significant attention. They are regarded as competitive candidates for flexible devices owing to the high volumetric capacity (5855 mAh cm −3 ) of the zinc metal and its facile fabrication process. Meanwhile, the superior cost advantage, $25/kWh [5] for AZIBs comparing to $135/kWh [6,7] for LIBs, is beneficial to applying AZIBs in different scales of devices.Aqueous zinc ion batteries (AZIBs) currently suffer from unfavorable water-induced side reactions that result in zinc dendrite formation, dissolution of cathode materials and the formation of byproducts on cathodes, thus causing a fast capacity fade. Owing to the water electrolysis (stable Owing to the development of aqueous rechargeable zinc-ion batteries (ZIBs), flexible ZIBs are deemed as potential candidates to power wearable electronics. ZIBs with solid-state polymer electrolytes can not only maintain additional load-bearing properties, but exhibit enhanced electrochemical properties by preventing dendrite formation and inhibiting cathode dissolution. Substantial efforts have been applied to polymer electrolytes by developing solid polymer electrolytes, hydrogel polymer electrolytes, and hybrid polymer electrolytes; however, the research of polymer electrolytes for ZIBs is still immature. Herein, the recent progress in polymer electrolytes is summarized by category for flexible ZIBs, especially hydrogel electrolytes, including their synthesis and characterization. Aiming to provide an insight from lab research to commercialization, the relevant challenges, device configurations, and life cycle analysis are consolidated. As flexible batteries, the majority of polymer electrolytes exploited so far only emphasizes the electrochemical performance but the mechanical behavior and interactions with the electrode materials have hardly been considered. Hence, strategies of combining softness and strength and the integration with electrodes are discussed for flexible ZIBs. A ranking index, combining both electrochemical and mechanical properties, is introduced. Future research directions are also covered to guide research toward the commercialization of flexible ZIBs.

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An environmentally adaptive quasi-solid-state zinc-ion battery based on magnesium vanadate hydrate with commercial-level mass loading and anti-freezing gel electrolyte

Abstract: A quasi-solid-state zinc-ion battery exhibits remarkable areal and volumetric energy/power densities and excellent cyclability from −30 to 60 °C.

Cited by 127 publications

References 72 publications

High-Performance Anti-freezing Flexible Zn-MnO2 Battery Based on Polyacrylamide/Graphene Oxide/Ethylene Glycol Gel Electrolyte

High-Performance Anti-freezing Flexible Zn-MnO2 Battery Based on Polyacrylamide/Graphene Oxide/Ethylene Glycol Gel Electrolyte

Zinc Metal Energy Storage Devices under Extreme Conditions of Low Temperatures

Insights on Flexible Zinc‐Ion Batteries from Lab Research to Commercialization

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