The demand for lithium ion batteries continues to expand for powering applications such as portable electronics, grid-scale energy storage, and electric vehicles. As the application requirements advance, the innovation of lithium ion batteries toward higher energy density and power output is required. Along with the investigation of new materials, an important strategy for increasing battery energy content is to design electrodes with high areal loading to minimize the fraction of nonactive materials such as current collectors, separators, and packaging components, resulting in significant gains in energy content and the reduction of the system-level cost. However, the adoption of thick high areal loading electrodes has been impeded by sluggish charge transport and mechanical instability. With conventional slurry cast electrodes, battery function significantly deteriorates with increases in electrode thickness due to high cell polarization and the incomplete utilization of active materials. Thus, a consideration of approaches that facilitate an understanding and eventual adoption of high-loading electrodes is warranted to enable the deliberate advancement of next-generation batteries.

中文翻译：

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便于电子和离子传输的厚电极设计：架构、高级表征和建模

锂离子电池的需求不断扩大，用于为便携式电子产品、电网规模储能和电动汽车等供电应用提供动力。随着应用需求的推进，锂离子电池需要向更高的能量密度和功率输出进行创新。随着对新材料的研究，增加电池能量含量的一个重要策略是设计具有高面积负载的电极，以最大限度地减少非活性材料（如集电器、隔膜和包装组件）的比例，从而显着提高能量含量和降低系统级成本。然而，由于电荷传输缓慢和机械不稳定性，阻碍了采用厚的大面积负载电极。使用传统的浆液浇注电极，由于高电池极化和活性材料的不完全利用，电池功能随着电极厚度的增加而显着恶化。因此，有必要考虑有助于理解和最终采用高负载电极的方法，以实现下一代电池的有意推进。