To increase the viability of electric vehicles for the general population, it is critically important that rechargeable batteries are designed to support rapid charging, which is as important as increasing their energy density. However, commercial lithium-ion batteries (LIBs) encounter a ceiling of rate capability due to the sluggish intercalation kinetics of graphite anodes originated from their narrow interlayer spacing. Here, we report on graphite oxide frameworks (GOFs), whose interlayers are enlarged between 7.4 and 13 Å via a solvothermal reaction employing α,ω-diamino organic fillers. The GOFs offer ultrafast charging properties with a high lithium storage capacity of 370 mA h g⁻¹ (at 3,000 mA g⁻¹). In addition, we could determine the optimum interlayer spacing of layered electrode materials, at which the barrier for Li⁺ transport could be minimized. Altogether, our findings provide deep insight for the rational design fast chargeable LIBs with electrodes based on layered materials.

为了提高电动汽车对普通人群的生存能力，可充电电池的设计支持快速充电至关重要，这与提高其能量密度一样重要。然而，商业锂离子电池 (LIB) 遇到了倍率容量上限，因为石墨负极的嵌入动力学缓慢源于其狭窄的层间距。在这里，我们报告了氧化石墨框架 (GOF)，其中间层通过使用 α,ω-二氨基有机填料的溶剂热反应扩大了 7.4 到 13 Å。GOF 具有超快充电特性，具有 370 mA hg ^-1的高锂存储容量（在 3,000 mA g ^-1）。此外，我们可以确定层状电极材料的最佳层间距，在该间距下，Li ⁺传输的势垒可以最小化。总而言之，我们的研究结果为合理设计基于层状材料的电极的可快速充电 LIB 提供了深刻的见解。