Reinforcing electronic and ionic conductivity is very important to realize the high-rate Li₂ZnTi₃O₈ (LZTO) anode for Lithium-ion batteries (LIBs). Here, we reported a synthetic strategy toward in situ growth of homodispersed Li₂ZnTi₃O₈ on ultralight 3D carbon aerogels (CAs) via facile heat treatment and activation process taking LiOH as activating agent. Such an optimized composite obtains a specific surface area of 154.427 m² g⁻¹ and a high pore volume. The strong interaction between the LZTO and N-doped CAs, a highly electrical conductivity and multidimensional ion transport channels of the hybrid result in a high capacity, outstanding high-rate performance and long cycle life. As a result, the NPC-LZTO electrode (NPC-LZTO-B) delivers a commendable reversible capacity at high-rate (e.g. 162.4 mAh g⁻¹ at 5 A g⁻¹ (22 C) and 127.3 mAh g⁻¹ at 10 A g⁻¹) and durable long-term performance (capacity retention of 73% after 4500 cycles at 5 A g⁻¹). Moreover, the kinetic analysis confirms that the feature of pseudocapacitance boosts lithium-ion storage performance at high rate. Porous carbon aerogels frame constructed LZTO nanocomposite electrodes provide a facile way to design high durable LIBs anode.

增强电子和离子电导率对于实现锂离子电池 ( LIB)的高倍率 Li ₂ ZnTi ₃ O ₈ (LZTO) 负极非常重要。在这里，我们报告了一种合成策略，通过简单的热处理和活化过程，以 LiOH 作为活化剂，在超轻 3D 碳气凝胶 (CA) 上原位生长均分散的 Li ₂ ZnTi ₃ O ₈。这种优化的复合材料获得了 154.427 m ²  g ^-1的比表面积和高孔隙体积。LZTO 和 N 掺杂 CA 之间的强相互作用、高导电性和多维离子传输通道导致高容量、出色的高倍率性能和长循环寿命。因此，NPC-LZTO 电极 (NPC-LZTO-B) 在高倍率下提供了值得称道的可逆容量（例如5 A g ^-1 (22 C) 时的162.4 mAh g ^-1和10时的 127.3 mAh g ^-1 A g ^-1 ) 和持久的长期性能（5 A g ^{-1 下}4500 次循环后容量保持率为 73%）。此外，动力学分析证实了赝电容的特性可以高速提高锂离子存储性能。多孔碳气凝胶框架构造的 LZTO 纳米复合电极为设计高耐用性 LIBs 阳极提供了一种简便的方法。