摘要翻译：
锂离子电池组件的结构，例如电极和隔板，通常根据其孔隙率和曲折度来表征。这些值的比值给出了锂离子在充满电解液的孔隙中的有效输运，可以用来确定离子电阻率和相应的电压损失。在这里，我们表明这些微观结构特征是不充分的。对商用聚烯烃隔膜层析数据的分析表明，不同聚烯烃隔膜具有相似的孔隙率和通面曲折率，在锂离子电池运行的均匀图像中，这意味着这些不同的隔膜具有相似的性能。然而，数值扩散模拟表明情况并非如此。我们证明了锂离子浓度梯度被隔膜结构诱导或平滑的程度与孔隙空间连通性有关，孔隙空间连通性可以通过基于拓扑或网络的隔膜分析来确定。这些发现使我们能够提出如何设计更安全和适应快速充放电的分离器微结构。
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英文标题：
《Topological and Network Analysis of Lithium Ion Battery Components: The
  Importance of Pore Space Connectivity for Cell Operation》
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作者：
Marie Francine Lagadec, Raphael Zahn, Simon M\"uller and Vanessa Wood
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最新提交年份：
2018
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分类信息：

一级分类：Physics        物理学
二级分类：Applied Physics        应用物理学
分类描述：Applications of physics to new technology, including electronic devices, optics, photonics, microwaves, spintronics, advanced materials, metamaterials, nanotechnology, and energy sciences.
物理学在新技术中的应用，包括电子器件、光学、光子学、微波、自旋电子学、先进材料、超材料、纳米技术和能源科学。
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一级分类：Physics        物理学
二级分类：Materials Science        材料科学
分类描述：Techniques, synthesis, characterization, structure.  Structural phase transitions, mechanical properties, phonons. Defects, adsorbates, interfaces
技术，合成，表征，结构。结构相变，力学性质，声子。缺陷，吸附质，界面
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一级分类：Electrical Engineering and Systems Science        电气工程与系统科学
二级分类：Image and Video Processing        图像和视频处理
分类描述：Theory, algorithms, and architectures for the formation, capture, processing, communication, analysis, and display of images, video, and multidimensional signals in a wide variety of applications. Topics of interest include: mathematical, statistical, and perceptual image and video modeling and representation; linear and nonlinear filtering, de-blurring, enhancement, restoration, and reconstruction from degraded, low-resolution or tomographic data; lossless and lossy compression and coding; segmentation, alignment, and recognition; image rendering, visualization, and printing; computational imaging, including ultrasound, tomographic and magnetic resonance imaging; and image and video analysis, synthesis, storage, search and retrieval.
用于图像、视频和多维信号的形成、捕获、处理、通信、分析和显示的理论、算法和体系结构。感兴趣的主题包括：数学，统计，和感知图像和视频建模和表示；线性和非线性滤波、去模糊、增强、恢复和重建退化、低分辨率或层析数据；无损和有损压缩编码；分割、对齐和识别；图像渲染、可视化和打印；计算成像，包括超声、断层和磁共振成像；以及图像和视频的分析、合成、存储、搜索和检索。
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英文摘要：
  The structure of lithium ion battery components, such as electrodes and separators, are commonly characterised in terms of their porosity and tortuosity. The ratio of these values gives the effective transport of lithium ions in the electrolyte-filled pore spaces, which can be used to determine the ionic resistivity and corresponding voltage losses. Here, we show that these microstructural characteristics are not sufficient. Analysis of tomographic data of commercial separators reveals that different polyolefin separators have similar porosity and through-plane tortuosity, which, in the homogenised picture of lithium ion cell operation, would imply that these different separators exhibit similar performance. However, numerical diffusion simulations indicate that this is not the case. We demonstrate that the extent to which lithium ion concentration gradients are induced or smoothed by the separator structure is linked to pore space connectivity, a parameter that can be determined by topological or network based analysis of separators. These findings enable us to propose how to design separator microstructures that are safer and accommodate fast charge and discharge.
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PDF链接：
https://arxiv.org/pdf/1806.00083