A scalable top-down strategy toward practical metrics of Ni–Zn aqueous batteries with total energy densities of 165 W h kg<sup>−1</sup> and 506 W h L<sup>−1</sup>

Zhou, Wanhai; Zhu, Ding; He, Jian; Li, Jinchi; Chen, Hui; Chen, Yungui; Chao, Dongliang

doi:10.1039/d0ee01221a

Cited by 177 publications

(117 citation statements)

References 63 publications

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“…With the fast development of digital society, advanced batteries with high energy density and high‐power delivery, and more importantly, high safety, are in great demand for wireless communications, transportation, personal electronics, and so on. [ 1–3 ] These batteries generate considerable joule heat during fast charging/discharging, [ 4,5 ] resulting in a local high temperature environment. High operation temperature may cause permanent performance degradation of the batteries, or even lead to explosion and fire risks.…”

Section: Figurementioning

confidence: 99%

Thermal Self‐Protection of Zinc‐Ion Batteries Enabled by Smart Hygroscopic Hydrogel Electrolytes

Yang

Feng

Liu

et al. 2020

Advanced Energy Materials

123

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With the fast development of digital society, advanced batteries with high energy density and high-power delivery, and more importantly, high safety, are in great demand for wireless communications, transportation, personal electronics, and so on. [1-3] These batteries generate considerable joule heat during fast charging/discharging, [4,5] resulting in a local high temperature environment. High operation temperature may cause permanent performance degradation of the batteries, or even lead to explosion and fire risks. [6] Therefore, thermal

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Section: Figurementioning

confidence: 99%

Thermal Self‐Protection of Zinc‐Ion Batteries Enabled by Smart Hygroscopic Hydrogel Electrolytes

Yang

Feng

Liu

et al. 2020

Advanced Energy Materials

123

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“…Aqueous Zn-based batteries, such as Mn//Zn, [1][2][3][4] V//Zn, [5][6][7][8][9] Polymer//Zn, [10,11] Carbon//Zn, [12,13] Co//Zn, [14,15] Ni//Zn, [16,17] and ZnHCF//Zn [18] are expected as a vital alternative to Li-ion batteries (LIBs) owing to their low production costs, intrinsic safety, and environmentally friendly. Among them, Ni//Zn batteries employ good ionic conductivity compared with nonaqueous batteries, which provides key support to high-rate capability.…”

Section: Introductionmentioning

confidence: 99%

Water Invoking Interface Corrosion: An Energy Density Booster for Ni//Zn Battery

Wang

Shao

et al. 2021

Advanced Energy Materials

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Advanced Ni//Zn batteries possess great promise that combines battery‐level energy density and capacitor‐level power density. However, the surface chemical reactivity of the cathode is generally restricted by active material utilization, leading to an insensitive edge site and unsatisfactory capacity. Herein, a simple and energy‐saving strategy is reported for manipulating the bimetallic sulfide nanointerfaces via water invoking interface corrosion to achieve a 200% increase in the capacity of electrodes. The combined action of water and oxygen causes secondary in situ growth of NiCo–OH nanosheet coating layers on the CoxNi3‐xS2 nanowalls with surface enrichment of low‐valence mixed states, which deliver remarkable reactive activity and structural stability. As a result, the 3D cathode yields an ultrahigh capacity of 2.45 mAh cm−2, higher than that of the pristine nanomaterial (1.20 mAh cm−2). The resulting Ni//Zn battery with excellent reversibility and long‐life, achieves a remarkable energy density of 4.29 mWh cm−2 (728 Wh kg−1), which is superior to most recently reported aqueous Zn‐based batteries and is even comparable to Li‐ion batteries. This work explores the interface corrosion mechanism and corrosion‐surface activity relationship, which is a powerful strategy to construct high surface electrochemical activity of metallic sulfides/phosphides for renewable energy storage devices.

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“…P peak of 22.3 kW kg −1 ), while that of Co[Co(CN) 6 ]/I 2 //Zn and Co[Fe(CN) 6 ]/I 2 //Zn batteries are 14.8 and 13.2 kW kg −1 , respectively. This value far outperforms all of reported batteries, that is, NiS‐coated Ni 0.95 Zn 0.05 (OH) 2 //Zn (18.8 kW kg −1 ), [6] Co//Zn battery (12.6 kW kg −1 ), [7] Ni//MH battery (4.8 kW kg −1 ); [8] MnO 2 //Zn battery (9.45 kW kg −1 ) [9] . The high power delivered of the batteries originates from fast electrochemical reaction kinetics.…”

Section: Resultsmentioning

confidence: 73%

Electrocatalytic Iodine Reduction Reaction Enabled by Aqueous Zinc‐Iodine Battery with Improved Power and Energy Densities

Ying

Chen

et al. 2020

Angewandte Chemie

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Proposed are Prussian blue analogue hosts with ordered and continuous channels, and electrocatalytic functionality with open Co and Fe species, which facilitate maximum I2 utilization efficiency and direct I2 to I− conversion kinetics of the I2 reduction reaction, and free up 1/3 I− from I3−. Co[Co1/4Fe3/4(CN)6] exhibits a low energy barrier (0.47 kJ mol−1) and low Tafel slope (76.74 mV dec−1). Accordingly, the Co[Co1/4Fe3/4(CN)6]/I2//Zn battery delivers a capacity of 236.8 mAh g−1 at 0.1 A g−1 and a rate performance with 151.4 mAh g−1 achieved even at 20 A g−1. The battery delivers both high energy density and high‐power density of 305.5 Wh kg−1 and 109.1 kW kg−1, higher than I2//Zn batteries reported to date. Furthermore, solid‐state flexible batteries were constructed. A 100 mAh high capacity solid‐state I2//Zn battery is demonstrated with excellent cycling performance of 81.2 % capacity retained after 400 cycles.

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A scalable top-down strategy toward practical metrics of Ni–Zn aqueous batteries with total energy densities of 165 W h kg⁻¹ and 506 W h L⁻¹

Abstract:
The bias of Ni–Zn batteries between practical applications with gravimetrical limits and scientific research with volumetrical shortages has been corrected.

Cited by 177 publications

References 63 publications

Thermal Self‐Protection of Zinc‐Ion Batteries Enabled by Smart Hygroscopic Hydrogel Electrolytes

Thermal Self‐Protection of Zinc‐Ion Batteries Enabled by Smart Hygroscopic Hydrogel Electrolytes

Water Invoking Interface Corrosion: An Energy Density Booster for Ni//Zn Battery

Electrocatalytic Iodine Reduction Reaction Enabled by Aqueous Zinc‐Iodine Battery with Improved Power and Energy Densities

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A scalable top-down strategy toward practical metrics of Ni–Zn aqueous batteries with total energy densities of 165 W h kg−1 and 506 W h L−1

Abstract: The bias of Ni–Zn batteries between practical applications with gravimetrical limits and scientific research with volumetrical shortages has been corrected.

Cited by 177 publications

References 63 publications

Thermal Self‐Protection of Zinc‐Ion Batteries Enabled by Smart Hygroscopic Hydrogel Electrolytes

Thermal Self‐Protection of Zinc‐Ion Batteries Enabled by Smart Hygroscopic Hydrogel Electrolytes

Water Invoking Interface Corrosion: An Energy Density Booster for Ni//Zn Battery

Electrocatalytic Iodine Reduction Reaction Enabled by Aqueous Zinc‐Iodine Battery with Improved Power and Energy Densities

Contact Info

Product

Resources

About

A scalable top-down strategy toward practical metrics of Ni–Zn aqueous batteries with total energy densities of 165 W h kg⁻¹ and 506 W h L⁻¹

Abstract:
The bias of Ni–Zn batteries between practical applications with gravimetrical limits and scientific research with volumetrical shortages has been corrected.