Zinc Metal Energy Storage Devices under Extreme Conditions of Low Temperatures

Li, Fuyun; Hu, Xianluo

doi:10.1002/batt.202000243

Cited by 32 publications

(18 citation statements)

References 156 publications

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“…As human activities diversify, such as polar inspections, high‐altitude drones, aerospace, deep sea exploration, and daily use in cold regions, enabling ZABs to survive and operate at subzero temperatures is highly pursued [3] . However, the performances of ZABs severely deteriorate when the temperature falls below 0 °C, due to the reduced ionic conductivity of the electrolyte [4] and the decelerated kinetics of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) during the discharge and charge process at the air cathode [5] . Research on low‐temperature ZABs (LT‐ZABs) is still in infancy stage with only a few demonstrations being reported in terms of low‐temperature‐resistant electrolyte [6] and cathode catalysts [7] .…”

Section: Introductionmentioning

confidence: 99%

Engineering Dual Single‐Atom Sites on 2D Ultrathin N‐doped Carbon Nanosheets Attaining Ultra‐Low‐Temperature Zinc‐Air Battery

et al. 2022

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Herein, a novel dual single-atom catalyst comprising adjacent Fe-N 4 and Mn-N 4 sites on 2D ultrathin N-doped carbon nanosheets with porous structure (FeMn-DSAC) was constructed as the cathode for a flexible low-temperature Znair battery (ZAB). FeMn-DSAC exhibits remarkable bifunctional activities for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Control experiments and density functional theory calculations reveal that the catalytic activity arises from the cooperative effect of the Fe/Mn dualsites aiding *OOH dissociation as well as the porous 2D nanosheet structure promoting active sits exposure and mass transfer during the reaction process. The excellent bifunctional activity of FeMn-DSAC enables the ZAB to operate efficiently at ultra-low temperature of À 40 °C, delivering 30 mW cm À 2 peak power density and retaining up to 86 % specific capacity from the room temperature counterpart.

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Section: Introductionmentioning

confidence: 99%

Engineering Dual Single‐Atom Sites on 2D Ultrathin N‐doped Carbon Nanosheets Attaining Ultra‐Low‐Temperature Zinc‐Air Battery

et al. 2022

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“…The mechanism of low‐temperature additives is to prevent the formation of HB structures between water molecules by combining with water, thereby reducing the freezing point of the electrolyte [68,69] . Inorganic and organic additives can be used as additives at low temperatures (Figure 6).…”

Section: Organic Solventsmentioning

confidence: 99%

Optimization Strategies of Electrolytes for Low‐Temperature Aqueous Batteries

Wang

Wei

et al. 2022

The Chemical Record

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Aqueous rechargeable batteries (ARBs) are considered promising electrochemical energy storage systems for grid‐scale applications due to their low cost, high safety, and environmental benignity. With the demand for a wide range of application scenarios, batteries are required to work in various harsh conditions, especially the cold weather. Nevertheless, electrolytes would freeze at extremely low temperatures, resulting in dramatically sluggish kinetics and severe performance degradation. Here, we discuss the behaviors of hydrogen bonds and basic principles of anti‐freezing mechanisms in aqueous electrolytes. Then, we present a systematical review of the optimization strategies of electrolytes for low‐temperature aqueous batteries. Finally, the challenges and promising routes for further development of aqueous low‐temperature electrolytes are provided. This review can serve as a comprehensive reference to boost the further development and practical applications of advanced ARBs operated at low temperatures.

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“…[ 2–4 ] Meanwhile, SCs with excellent low‐temperature performance are highly demanded, for more and more emerging application scenarios such as aerospace, polar expeditions, high‐altitude drones, petroleum exploration, etc. [ 5,6 ] Majority of SCs suffer from deterioration of cycle life, rate capability, and capacity or even device failure at low temperatures. Therefore, expanding the low‐temperature adaptation of SCs and improving their electrochemical performance at low temperatures is essential.…”

Section: Introductionmentioning

confidence: 99%

Brine Refrigerants for Low‐cost, Safe Aqueous Supercapacitors with Ultra‐long Stable Operation at Low Temperatures

You

Yuan

et al. 2022

Adv Funct Materials

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Traditional aqueous energy storage devices are difficult to operate at low temperatures owing to the poor ionic conductivity and sluggish interfacial dynamics in frozen electrolytes. Herein, the low-cost brine refrigerants for food freezing and preservation as electrolytes, and unexpectedly realize high ionic conductivity and stable operation of an aqueous storage device at low temperatures are demonstrated. A CaCl 2 brine refrigerant electrolyte (BRE) with a low freezing point −55 °C and high ionic conductivity (10.1 mS cm −1 at −50 °C) is developed for supercapacitors (SCs), which retains 80% of the room temperature capacity at −50 °C and exhibits ultra-long cycle life with excellent capacity retention of 92% over 98,500 cycles, outperforming the other SCs which can be operated below −40 °C in literature. Moreover, the SCs with MgCl 2 and NaCl BREs can also be operated successfully with excellent cycle stability and high-capacity retention at low temperatures of −30 and −20 °C, respectively. Fundamental correlation between various cations and their effect on the freezing point reduction of aqueous electrolytes is revealed via Raman investigation and molecular dynamics simulations. This study provides a rational design strategy for green, inexpensive, and safe low-temperature aqueous electrolytes for energy storage devices.

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Zinc Metal Energy Storage Devices under Extreme Conditions of Low Temperatures

Cited by 32 publications

References 156 publications

Engineering Dual Single‐Atom Sites on 2D Ultrathin N‐doped Carbon Nanosheets Attaining Ultra‐Low‐Temperature Zinc‐Air Battery

Engineering Dual Single‐Atom Sites on 2D Ultrathin N‐doped Carbon Nanosheets Attaining Ultra‐Low‐Temperature Zinc‐Air Battery

Optimization Strategies of Electrolytes for Low‐Temperature Aqueous Batteries

Brine Refrigerants for Low‐cost, Safe Aqueous Supercapacitors with Ultra‐long Stable Operation at Low Temperatures

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