Studies of structural and morphological properties of cuprate conductive ceramics after electrochemical treatment in alkaline electrolyte

Stoyanova-Ivanova, Angelina; Lilov, Peter; Vasev, Alexander; Stoyanova, Antonia; Ivanova, Galya; Karashanova, Daniela; Mikli, Valdek

doi:10.1016/j.matchemphys.2019.121934

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…This extends the battery life and increases its discharge capacity (28). On the other hand, the Ca-and Sr-products in the case of B(Pb)SCCO 2212 modification decrease the solubility of ZnO in the electrolyte and suppress the shape change of the electrode (32). The impedance studies have shown that the positive effect of the B(Pb)SCCO 2201 additive on the zinc anode performance is not due to its intrinsic conductivity, but more probably of reduction products of the ceramic that could be produced during charging of the electrode (33).…”

Section: Introductionmentioning

confidence: 99%

Ultrasound Assisted Mixing of Zinc Active Mass with Conductive Ceramic Additives for Ni-Zn Battery

Petrova¹,

Stoyanova-Ivanova²,

Lilov³

et al. 2019

ECS Trans.

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Three zinc electrodes with carbon additive were prepared through ultrasound treatment. Two of them were mixed with conductive ceramic additives from the Bi-Sr-Ca-Cu-O (BSCCO) system with nominal chemical composition Bi1.7Pb0.3Sr2CuOx (B(Pb)SCCO 2201) and Bi1.7Pb0.3Sr2CaCu2Ox (B(Pb)SCCO 2212). The phase composition and morphology of the as-prepared samples were characterized by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The EDX specters suggest that the composition of the active mass does not change during the ultrasound treatment. The micrographs show that the active mass with carbon and 2201 additive has superior particle distribution compared to the other two samples.

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Section: Introductionmentioning

confidence: 99%

Ultrasound Assisted Mixing of Zinc Active Mass with Conductive Ceramic Additives for Ni-Zn Battery

Petrova¹,

Stoyanova-Ivanova²,

Lilov³

et al. 2019

ECS Trans.

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Research of Multifunctional Ceramic Materials for Their Application

Stoyanova-Ivanova,

Slavov

2023

Ceramic Materials - Present and Future

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A new challenge is obtaining and researching ceramic multifunctional materials containing phases with various properties, as well as Aurivillius phases, which determine their application. They show potential for use in electrochemical applications and ferroelectric and piezoelectric devices, sensors, and non-volatile memories. Presented are our studies of volumetric nonmonophasic ceramics from the RE-Ba-Cu-O (ReBCO, RE = rare-earth; Y, Dy) and Bi-Pb-Sr-Ca-Cu-O (B(Pb) SCCO) systems that are superconductors, obtained via solid phase synthesis. A bulk ceramic composite Y123/BaCuO2 was synthesized with starting stoichiometry of 1:3:4(Y:Ba:Cu) via a one-step procedure. It has superconducting and magnetic properties at low temperatures. DyBCO bulk ceramic with a nano-Fe3O4 additive was synthesized and characterized to identify the phase and elemental composition, the microstructure, and the superconducting transition temperature. The Aurivillius phases were synthesized via solid-phase synthesis and a melt-quench method. B(Pb)SCCO ceramics (2223, 2212, and 2201), with conductive properties, have been used as an addition to the active mass of a Zn electrode. The method of mixing the materials was also investigated. Their behavior in an alkaline environment and positive influence on the properties and longevity of the nickel-zinc battery has been studied. Part of the obtained ceramic systems was patented.

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Studies of structural and morphological properties of cuprate conductive ceramics after electrochemical treatment in alkaline electrolyte

Cited by 2 publications

References 26 publications

Ultrasound Assisted Mixing of Zinc Active Mass with Conductive Ceramic Additives for Ni-Zn Battery

Ultrasound Assisted Mixing of Zinc Active Mass with Conductive Ceramic Additives for Ni-Zn Battery

Research of Multifunctional Ceramic Materials for Their Application

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