IN-SITU MEASUREMENT OF LEAD ELECTRODES COMBINING CYCLIC VOLTAMMETRY AND AMPLITUDE MODULATION ATOMIC FORCE MICROSCOPY: GROWTH OF LEAD SULFATE CRYSTALS

被引：0

作者：

Imamura, Yuki ^{[1
]}

Akatsu, Toshiya ^{[1
]}

Katsube, Daiki ^{[1
]}

Kogure, Akinori ^{[2
,3
]}

Hirai, Nobumitsu ^{[4
]}

Kimura, Munehiro ^{[1
]}

机构：

[1] Nagaoka Univ Technol, Grad Sch Engn, 1603-1 Kamitomioka, Nagaoka, Niigata Pref 9402188, Japan

[2] INC, Shimadzu Techno Res, AMC Dept Testing, 380-1 Horiyamashita, Hadano, Kanagawa Pref 2591304, Japan

[3] INC, Anal Div, 380-1 Horiyamashita, Hadano, Kanagawa Pref 2591304, Japan

[4] Suzuka Coll, Natl Inst Technol KOSEN, Dept Chem & Biochem, Suzuka, Mie Pref 5100294, Japan

来源：

PROCEEDINGS OF 11TH INTERNATIONAL CONFERENCE ON LEAD-ACID BATTERIES (LABAT'2021) | 2021年

关键词：

atomic force microscopy; in-situ observation; cyclic voltammetry; negative electrode; oxidation reaction; SULFURIC-ACID; SURFACE;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In-situ amplitude-modulated atomic force microscopy observation was performed to clarify the process of lead sulfate crystal growth on the negative electrode surface of lead-acid batteries. At the peak of the discharge current in response to the oxidation reaction in cyclic voltammetry measurement, it was confirmed that crystals of several hundred nm, which are regarded to be lead sulfate, were thriving on the surface. After this process, when extinct the discharge current the gradual growth of the lead sulfate crystals observed continuously. From these results, it was found that the oxidation reaction (discharge) causes crystal growth in a two-step process on the negative electrode surface of the lead-acid battery.

引用

页码：41 / 44

页数：4

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