Stretchable energy storage devices have become indispensable components toward energy autonomy for wearable electronic, implantable medical devices, and untethered soft machines. A Zn-based battery with a neutral electrolyte could act as a competitive candidate for wearable/implantable electronics because of its intrinsic safety and high energy density. Therefore, it is highly desired to develop a synergistic combination of stretchable anodes/cathodes and neutral electrolytes for stretchable Zn-based batteries. Herein, a scalable fabrication process is developed to produce stretchable Zn-ion hybrid batteries composed of V₂CT_x MXene cathodes and zinc-decorated Ti₃C₂T_x MXene anodes. To endow high stretchability to the Zn-ion hybrid battery, both MXene-based electrodes are fabricated with crumple-like microtextures enabling reversible folding/unfolding behaviors to attenuate in-plane stress while stretching. In comparison with the state-of-the-art work, the as-fabricated Zn-ion hybrid battery features large deformability (50% strain), ultrathin device (≈170 µm), low areal weight (≈20 mg cm⁻²), and an ultralow self-discharge rate (0.7 mV h⁻¹), and demonstrates rechargeable and strain-insensitive specific capacities of 118.5 and 103.6 mAh g⁻¹ under 0% and 50% strains, respectively. Finally, with ultrathin and lightweight merits, the stretchable battery is further fabricated into a magnetically actuated soft robot with remote control, capable of crawling between two designated points for charging/discharging tasks.

中文翻译：

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具有可重构 V2CTx 和 Ti3C2Tx MXene 电极的可拉伸锌离子混合电池作为磁驱动软机器人

可伸缩储能设备已成为可穿戴电子设备、可植入医疗设备和无绳软机器的能源自主不可或缺的组成部分。由于其固有的安全性和高能量密度，具有中性电解质的锌基电池可以作为可穿戴/可植入电子产品的竞争候选者。因此，非常需要为可拉伸的锌基电池开发可拉伸的阳极/阴极和中性电解质的协同组合。在此，开发了一种可扩展的制造工艺来生产由 V ₂ CT _x MXene 阴极和锌装饰的 Ti ₃ C ₂ T _x组成的可拉伸锌离子混合电池MXene 阳极。为了赋予锌离子混合电池高拉伸性，两种基于 MXene 的电极均采用皱褶状微纹理制造，可实现可逆折叠/展开行为，以在拉伸时减弱面内应力。与最先进的工作相比，所制造的锌离子混合电池具有大变形能力（50% 应变）、超薄器件（≈170 µm）、低面积重量（≈20 mg cm ^-2）和超低自放电率 (0.7 mV h ^-1 )，并展示了 118.5 和 103.6 mAh g ^{-1 的}可充电和应变不敏感比容量分别在 0% 和 50% 菌株下。最后，凭借超薄轻巧的优点，将可伸缩电池进一步制成具有遥控功能的磁驱动软机器人，能够在两个指定点之间爬行进行充电/放电任务。