Role of Lignin on Depressing of Anomalous Growth of Pb Negative Electrode in Lead-acid Battery

木质素对抑制铅酸电池Pb负极异常生长的作用

• 批准号: 09555224
• 负责人: TAGUCHI Masami
• 金额: $ 2.94万
• 依托单位: Akita University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555224/
• 关键词: lead-acid battery; lignin; lead electrode; additive; anomalous growth; acicular precipitate; adsorption; electron spectroscopy; 鉛バッテリ-

The negative electrode in lead-acid battery is containing a spongy Pb as the active material and a natural polymer, lignin. During repeated charge-discharge cycling in a sulfuric acid solution without lignin, an anomalous growth of acicular precipitate is observed on the negative electrode. In this project, The influence of different lignins on the anomalous growth of metallic Pb on the negative electrode in the lead-acid battery has been investigated. The cell voltage during charge is increased by adding lignin to the electrolyte, while the growth is depressed. The higher the cell voltage increases, the lower the x-ray intensity ratio of Pb(111)/PbSOィイD24ィエD2(211) decreases for the negativeelectrode; therefore the cell voltage during charge has come to be useful criterion of lignin quality for depressing the anomalous growth of metallic Pb. The partially desulfonized lignin (PD-lignin) is more effective in depressing the growth than the standard one. The arrangement of the functional group such as carboxyl and alcoholic hydroxide, rather than the molecular weight, is important to the effect. During charge, the lignin obstructs the movement of PbィイD12+ィエD1 ion to the site, on which the charge-transfer is progressing. The presumption that the lignin suppress the onset of the solid-state reaction in favor of a dissolution-precipitation process during discharge is deduced from the rotating ring-disk experiment. The information must be useful in the field of lead-acid battery manufacturing.

铅酸蓄电池的负极是以海绵状铅为活性物质，以天然高分子木质素为主要成分。在不含木质素的硫酸溶液中反复充放电循环过程中，在负极上观察到针状沉淀物的异常生长。本课题研究了不同木质素对铅酸蓄电池负极金属铅异常生长的影响。通过向电解质中添加木质素，充电期间的电池电压增加，同时生长被抑制。电池电压越高，负极Pb（111）/PbSO_4 ~（211）的X射线强度比越小，因此电池电压可以作为衡量木质素质量的一个有用的指标，从而抑制金属Pb的异常生长。部分磺化木质素（PD-木质素）比标准木质素更有效地抑制生长。羧基和醇类氢氧化物等官能团的排列方式对这种效应很重要，而不是分子量。在充电过程中，木质素阻碍了铅离子D12+铅离子D1向电荷转移进行的位点的移动。从旋转环盘实验中推断出木质素抑制了固相反应的发生，有利于放电过程中的溶解-沉淀过程。这些信息必须在铅酸电池制造领域有用。

项目成果

Masami Taguchi and Maki Watanabe: "Influence of lignin on Anomalous Growth of negative Electrode and Charge-discharge Property of Lead-acid Battery"journal of the Surface Finishing Society of Japan. 50, No. 2. 196-201 (1999)

Masami Taguchi和Maki Watanabe：“木质素对铅酸电池负极异常生长和充放电性能的影响”日本表面处理协会期刊。

Masami Taguchi,Ta-Chen Chant and Tsukasa Baba: "Electromotive Force and Discharge Properties of Solid State Cell Pb/PbO/PbO_2"Materials Trans. JIM. 38. 437-442 (1997)

Masami Taguchi、Ta-Chen Chant 和 Tsukasa Baba：“固态电池 Pb/PbO/PbO_2 的电动势和放电特性”材料翻译。

Masami Taguchi and Kazunori Kanda: "Electrical Conductivity of PbO and Discharge Property of Thin Film Pb/PbO/PbO_2 Solid Cell"Electrochemistry. 67. 1249-1253 (1999)

Masami Taguchi和Kazunori Kanda：“PbO的电导率和薄膜Pb/PbO/PbO_2固体电池的放电特性”电化学。

田口正美、 平沢今吉: "室温近傍における再生Pbの酸化挙動に及ぼす不純物の影響" 表面技術. 48・10. 1025-1031 (1997)

Masami Taguchi、Imayoshi Hirasawa：“杂质对室温附近回收的 Pb 氧化行为的影响”表面技术 48・10 (1997)。

Masami Taguchi and Kazunori Kanda: "Electrical Conductivity of PbO and Discharge Property of Thin Film Pb/PbO/PbOィイD22ィエD2 Solid Cell"Electrochemistry. 67, No. 12. 1249-1253 (1999)

Masami Taguchi 和 Kazunori Kanda：“PbO 的电导率和薄膜 Pb/PbO/PbO2 固体电池的放电特性”电化学 67，第 12 期。1249-1253 (1999)