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分享一篇文獻(xiàn) 極片厚度對電化學(xué)和熱性能的影響 已有14人參與
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目前,通過使用電化學(xué)和熱耦合模型來分析和預(yù)測鋰離子電池的研究越來越多,其中極片厚度是一個很重要的參數(shù)。電池的在工藝上為能量型還是功率型?到底極片厚度多少可以滿足性能輸出要求?都與這個厚度有關(guān)。我認(rèn)為,通過試驗和模擬可以進(jìn)行很好的研究電池性能,模擬只是手段,關(guān)注點最終放到物理意義和機理的研究,研究水平就上來了![]() 題目:The effects of electrode thickness on the electrochemical and thermal characteristics of lithium ion battery 雜志:Applied Energy 摘要: Lithium ion (Li-ion) battery, consisting of multiple electrochemical cells, is a complex system whose high electrochemical and thermal stability is often critical to the well-being and functional capabilities of electric devices. Considering any change in the specifications may significantly affect the overall performance and life of a battery, an investigation on the impacts of electrode thickness on the electrochemical and thermal properties of lithium-ion battery cells based on experiments and a coupling model composed of a 1D electrochemical model and a 3D thermal model is conducted in this work. In-depth analyses on the basis of the experimental and simulated results are carried out for one cell of different depths of discharge as well as for a set of cells with different electrode thicknesses. Pertinent results have demonstrated that the electrode thickness can significantly influence the battery from many key aspects such as energy density, temperature response, capacity fading rate, overall heat generation, distribution and proportion of heat sources. |
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