The Effect of the Positive Electrode Properties on the Activation Time of the Lead–Perchloric Acid–Lead Dioxide-Based Reserve Chemical Power Sources

IF 1.1 4区工程技术 Q4 ELECTROCHEMISTRY Russian Journal of Electrochemistry Pub Date : 2024-01-16 DOI:10.1134/s1023193523120121

P. A. Shcheglov, D. A. Samsonov, A. B. Pavlenkov, T. L. Kulova, A. Yu. Rychagov, N. F. Nikolskaya, A. A. Shiryaev, A. M. Skundin

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Abstract

Abstract—

The influence of the positive electrode properties on the activation time of the reserve chemical power sources based on the lead–perchloric acid–lead dioxide system is studied. Coatings of cathodes with lead dioxide obtained under various conditions are characterized by scanning electron spectroscopy, X-ray spectral microanalysis, X-ray photoelectron spectroscopy, and standard contact porosimetry. The improvement of the performance characteristics of the power sources including the ensuring of a short time of their activation at a low temperature is shown to be possible with the use of a lead dioxide nanoporous coating. To evaluate the applicability of cathodes for the manufacturing of power sources with a minimal activation time, a diagnostic principle is used that it based on the testing of the cathodes by chronopotentiometric measurements during their galvanostatic discharge. Pilot industrial samples of small-sized reserve power sources of the above-mentioned electrochemical system with unprecedented short activation time (less than 30 ms at temperature –50°С) were manufactured and tested.

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正极特性对高氯酸铅-二氧化铅储备化学电源活化时间的影响

摘要研究了正极特性对基于铅-高氯酸-二氧化铅体系的储备化学电源活化时间的影响。通过扫描电子显微镜、X 射线光谱显微分析、X 射线光电子能谱和标准接触孔隙率测定法对在不同条件下获得的二氧化铅阴极涂层进行了表征。结果表明，使用二氧化铅纳米多孔涂层可以改善电源的性能特征，包括确保在低温下短时间内激活电源。为了评估阴极在制造激活时间最短的电源方面的适用性，我们采用了一种诊断原理，即在阴极的电静电放电过程中，通过计时电位测量法对阴极进行测试。我们制造并测试了上述电化学系统的小型后备电源试验性工业样品，其活化时间前所未有地短（温度为-50°С时小于 30 毫秒）。

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来源期刊

Russian Journal of Electrochemistry 工程技术-电化学

CiteScore

1.90

自引率

8.30%

发文量

102

审稿时长

6 months

期刊介绍： Russian Journal of Electrochemistry is a journal that covers all aspects of research in modern electrochemistry. The journal welcomes submissions in English or Russian regardless of country and nationality of authors.