Scholarlink

<p>A voltage difference is induced between two parallel-connected lithium-ion batteries (LIBs) of the same voltage when these LIBs imposed temperature difference depending on the entropy change (Δ<i>S</i>) in the discharge of the LIB cell and their temperature difference. In this study, electrical power is extracted based on the voltage difference arising from the temperature change of two LIB cells (approximately 60 mAh for each cell) in two voltage regions characterized by opposite Δ<i>S</i> signs. An electric energy of 1.8&#xa0;mJ was extracted from two LIB cells subjected to a temperature difference of 30&#xa0;°C, which was the higher of the two conditions tested. Although the extracted electric energy was extremely lower than the thermal energy affording a temperature change in the electrodes and electrolyte for the two LIB cells (total 96.6&#xa0;J), this suggests that a portion of the thermal energy was extracted as electric energy into the external circuit.</p> Graphical abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Exploratory evaluation of current extraction between two lithium-ion batteries under temperature difference

  • 期刊论文

  • 发表日期：

    2026年6月22日

查看全文
  • Yuu Watanabe

摘要

A voltage difference is induced between two parallel-connected lithium-ion batteries (LIBs) of the same voltage when these LIBs imposed temperature difference depending on the entropy change (ΔS) in the discharge of the LIB cell and their temperature difference. In this study, electrical power is extracted based on the voltage difference arising from the temperature change of two LIB cells (approximately 60 mAh for each cell) in two voltage regions characterized by opposite ΔS signs. An electric energy of 1.8 mJ was extracted from two LIB cells subjected to a temperature difference of 30 °C, which was the higher of the two conditions tested. Although the extracted electric energy was extremely lower than the thermal energy affording a temperature change in the electrodes and electrolyte for the two LIB cells (total 96.6 J), this suggests that a portion of the thermal energy was extracted as electric energy into the external circuit.

Graphical abstract