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<p>The thermal management and performance of lithium-ion batteries (LIBs) are critical for their application in high-power systems, especially under fast-charging and high-discharge conditions. While multiple-tab configurations have been extensively studied for cylindrical cells, their implementation in pouch cells remains underexplored. This study systematically investigates the effects of tab positioning, tab size, cell aspect ratio, and the arrangement of multiple tabs on the thermal and electrochemical behavior of pouch cells. Using a validated electrochemical-thermal model, we analyzed the charge and discharge capabilities, ohmic losses, heat generation, and temperature distribution across various cell designs operating at a 12C rate. The findings demonstrate that multiple-tab designs, particularly configurations with tabs aligned on opposite sides, offer significant advantages in reducing ohmic losses and ensuring uniform temperature distribution. These designs not only improve thermal management but also show potential in mitigating thermal stress, enhancing durability, and enabling high C-rate operations. A cost-performance analysis revealed that multiple-tab designs can achieve a favorable balance between manufacturing/material costs and thermal advantages. Among all configurations, the multiple-tab design emerged as the most promising, combining low cost and superior thermal management. The insights gained from this research contribute significantly to the design of next-generation lithium-ion batteries, advancing energy storage technology and supporting the broader adoption of electric vehicles.</p>

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Multiple tab design for lithium-ion pouch cells: enhancing thermal management at high C-rates

  • 期刊论文

  • 发表日期：

    2026年7月14日

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  • Wasipim Chansiriwat,
  • Nutthanicha Boonkord,
  • Titiwat Dechasiribun,
  • Natthaphon Suankhem,
  • Makarapun Makaramani,
  • Kotchakarn Nantasaksiri,
  • Danai Phaoharuhansa,
  • Patcharawat Charoen-amornkitt

摘要

The thermal management and performance of lithium-ion batteries (LIBs) are critical for their application in high-power systems, especially under fast-charging and high-discharge conditions. While multiple-tab configurations have been extensively studied for cylindrical cells, their implementation in pouch cells remains underexplored. This study systematically investigates the effects of tab positioning, tab size, cell aspect ratio, and the arrangement of multiple tabs on the thermal and electrochemical behavior of pouch cells. Using a validated electrochemical-thermal model, we analyzed the charge and discharge capabilities, ohmic losses, heat generation, and temperature distribution across various cell designs operating at a 12C rate. The findings demonstrate that multiple-tab designs, particularly configurations with tabs aligned on opposite sides, offer significant advantages in reducing ohmic losses and ensuring uniform temperature distribution. These designs not only improve thermal management but also show potential in mitigating thermal stress, enhancing durability, and enabling high C-rate operations. A cost-performance analysis revealed that multiple-tab designs can achieve a favorable balance between manufacturing/material costs and thermal advantages. Among all configurations, the multiple-tab design emerged as the most promising, combining low cost and superior thermal management. The insights gained from this research contribute significantly to the design of next-generation lithium-ion batteries, advancing energy storage technology and supporting the broader adoption of electric vehicles.