Comparative study of intrinsically safe zinc-nickel batteries and lead-acid batteries for energy storage

Zhao, Zequan; Liu, Bin; Shen, Yuanhao; Wu, Tian; Zang, Xiaoxian; Zhao, Yu; Zhong, Cheng; Ma, Fuyuan; Hu, Wenbin

doi:10.1016/j.jpowsour.2021.230393

Cited by 23 publications

(11 citation statements)

References 26 publications

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“…Before tests, the nickel–zinc batteries were preactivated following the process reported previously by our laboratory . The discharge capacity (2.5 Ah) during the preactivation process was defined as the nominal capacity of the battery.…”

Section: Methodsmentioning

confidence: 99%

“…The preparation of the electrodes was performed following the procedure of the previous report of our laboratory. 28 Briefly, the anode was composed of ZnO and Zn as the active material, polytetrafluoroethylene (PTFE) and poly(vinyl alcohol) (PVA) as the binder, and Bi 2 O 3 , potassium polyacrylate as the additive. Bi 2 O 3 could increase the electrical conductivity of the anode, and potassium polyacrylate would improve electrolyte's water retention ability.…”

Section: Methodsmentioning

confidence: 99%

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Long-Life and Highly Utilized Zinc Anode for Aqueous Batteries Enabled by Electrolyte Additives with Synergistic Effects

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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After decades of development, zinc-based batteries with the advantages of high energy density, low cost, and environmental benignity have been considered as a promising battery system in the application of energy storage. However, the poor cycle performance of zinc anode strongly restricts the cycle life of zinc-based batteries and thus limits its large-scale application. Electrolyte additives have been proven to be one of the most straightforward strategies in improving the stability of zinc anode during cycles, while the options of additives are still limited. This work is based on the in-depth investigation of the electrochemical behavior of both the organic additives and the zinc species in the electrolyte. The modification effects of poly(vinyl alcohol) (PVA) and vanillin as two typical additives from the electroplating industry in both the zinc plating and zinc anode are systematically studied. It is revealed that PVA could increase the utilization and rate performance of the anode, while greatly promoting the corrosion and shape change of the zinc anode. On the contrary, the existence of vanillin could maintain the structure of the anode during cycles, while the rate performance of the battery is hindered. With the coaddition of the PVA and vanillin, the zinc anode shows superior performance in cycle life, rate performance, active material utilization, and discharge energy retention. These findings provide insight for the enrichment of electrolyte additives in zinc-based batteries.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Long-Life and Highly Utilized Zinc Anode for Aqueous Batteries Enabled by Electrolyte Additives with Synergistic Effects

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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“…The preparation of electrodes was based on the formula previously proposed in our laboratory. 33 The slurry of anode was prepared by mixing ZnO, Zn, Al 2 O 3 , Bi 2 O 3 , poly(vinyl alcohol) (PVA), potassium polyacrylate, and poly(tetrafluoroethylene) (PTFE, 60 wt % aqueous solution). The addition of Bi 2 O 3 can not only inhibit hydrogen evolution but also improve conductivity.…”

Section: Methodsmentioning

confidence: 99%

Root Reason for the Failure of a Practical Zn–Ni Battery: Shape Changing Caused by Uneven Current Distribution and Zn Dissolution

Shen¹,

Wang³

et al. 2021

ACS Appl. Mater. Interfaces

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In recent years, with the increasing application of lithium-ion batteries in energy storage devices, fire accidents caused by lithium-ion batteries have become more frequent and have arisen wide concern. Due to the safety of aqueous electrolyte, aqueous Zn-based batteries have attracted vast attention, among which Zn–Ni batteries stand out by virtue of their excellent rate performance and environmental friendliness. However, poor cycling life limits the application of Zn–Ni batteries. To figure out the main cause, a failure analysis of a practical Zn–Ni battery has been carried out. During the cycling of the Zn–Ni battery, the evolution of gas, the shape changing, and the aggregation of additive and binder of Zn anode can be observed. Combined with the finite element analysis, we finally reveal that the key factor of battery failure is the shape changing of the Zn anode caused by uneven current distribution and the dissolution of Zn. The shape changing of the Zn anode reduces the effective surface area of anode and increases the possibility of dead Zn, which makes the battery unable to discharge even in the presence of a large amount of Zn. These findings are helpful to deepen the understanding of the working and failure mechanisms of the Zn anode and provide effective guidance for subsequent research.

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“…[5][6][7] Nickel and related oxides are considered suitable low-cost catalysts widely used in energy applications such as electrochemical capacitance, photocatalysis, batteries, solar cells, and urea electrooxidation. [8][9][10][11][12][13] Catalyst composed of two metallic, known as a bimetallic, have got much attention due to the synergetic effect between the two metals compared with monometallic counterparts. This leads to enhancing electrical conductivity and structure stability catalytic activity, sensitivity, and durability.…”

Section: Introductionmentioning

confidence: 99%

NiO‐MnOx/Polyaniline/Graphite Electrodes for Urea Electrocatalysis: Synergetic Effect between Polymorphs of MnOx and NiO.

et al. 2022

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In this work, we are enhancing the catalytic activity of the urea electrooxidation (UEO) process by using the composite of polyaniline (Pani), nickel oxide (NiO), and polymorphs of manganese oxide (MnOx) based on a graphite electrode. The hydro‐gel method was used to prepare catalyst suspension with different ratios from NiO and MnOx. The chemical structures and surface morphology were characterized by employing the IR, XRD, and SEM/EDEX techniques. The catalytic activity of four modified electrocatalysts G/Pani/NiMn1, G/Pani/NiMn2, G/Pani/NiMn3, G/Pani/NiMn4 was investigated using cyclic voltammetry, chronoamperometry, and electrochemical impedance. The kinetic parameters such as diffusion coefficient, Tafel slope, charge transfer coefficient, and surface coverage were calculated to choose the best electrocatalysts toward UEO in alkaline solution. The anodic current of new electrodes achieved about 16 mA.cm−2 at potential of 550 mV (vs. Ag/AgCl). Density functional theory studies (DFT) have been carried out to assess the adsorption energy between polyaniline (Pani) and the metal oxides.

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Comparative study of intrinsically safe zinc-nickel batteries and lead-acid batteries for energy storage

Cited by 23 publications

References 26 publications

Long-Life and Highly Utilized Zinc Anode for Aqueous Batteries Enabled by Electrolyte Additives with Synergistic Effects

Long-Life and Highly Utilized Zinc Anode for Aqueous Batteries Enabled by Electrolyte Additives with Synergistic Effects

Root Reason for the Failure of a Practical Zn–Ni Battery: Shape Changing Caused by Uneven Current Distribution and Zn Dissolution

NiO‐MnOx/Polyaniline/Graphite Electrodes for Urea Electrocatalysis: Synergetic Effect between Polymorphs of MnOx and NiO.

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