Free‐standing, binder‐free, and conductive additive‐free mesoporous titanium dioxide/carbon hybrid electrodes were prepared from co‐assembly of a poly(isoprene)‐block‐poly(styrene)‐block‐poly(ethylene oxide) block copolymer and a titanium alkoxide. By tailoring an optimized morphology, we prepared macroscopic mechanically stable 300 μm thick monoliths that were directly employed as lithium‐ion battery electrodes. High areal mass loading of up to 26.4 mg cm⁻² and a high bulk density of 0.88 g cm⁻³ were obtained. This resulted in a highly increased volumetric capacity of 155 mAh cm⁻³, compared to cast thin film electrodes. Further, the areal capacity of 4.5 mAh cm⁻² represented a 9‐fold increase compared to conventionally cast electrodes. These attractive performance metrics are related to the superior electrolyte transport and shortened diffusion lengths provided by the interconnected mesoporous nature of the monolith material, assuring superior rate handling, even at high cycling rates.

中文翻译：

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订购的介孔二氧化钛/碳混合整体材料，用于锂离子电池阳极，具有较高的面积和体积容量

由聚（异戊二烯）-嵌段-聚（苯乙烯）-嵌段-聚（环氧乙烷）嵌段共聚物和钛醇盐。通过定制优化的形态，我们制备了宏观机械稳定的300μm厚的整料，可直接用作锂离子电池电极。获得高达26.4mg cm ^-2的高面积质量负荷和0.88g cm ^-3的高堆积密度。与流延薄膜电极相比，这导致155 mAh cm ^-3的体积容量大大增加。此外，面积容量为4.5 mAh cm ^-2与传统的铸造电极相比，它代表了9倍的增长。这些吸引人的性能指标与整体材料相互连通的中孔性质所提供的优异的电解质传输能力和缩短的扩散长度有关，即使在高循环速率下，也能确保出色的速率处理能力。