Flexible fiber-based Zn-ion batteries represent an ideal power platform for smart wearable energy textiles featuring safety, flexibility, and unique integration. However, the inevitably low elongation limits (<400%) of common fiber-based Zn-ion batteries may restrict applications in highly deformable wearable materials and lead to unstable energy storage performance during practical activities. Herein, an elastic graphene/polyaniline-Zn@silver fiber-based battery (eG/P-Zn@SFB) with a helical structure inspired by the biological structure of luffa tendril is reported. eG/P-Zn@SFB exhibits ultrastretching properties and can be stretched to 900% with a 71% capacity retention ratio. Moreover, the prefabricated battery delivers a high specific capacity of 32.56 mAh/cm3 at 10 mA/cm3 and an energy density of 36.04 mWh/cm3. As a proof of concept, the knitted integrated eG/P-Zn@SFB served as an effective power supply with different bending angles ranging from 0° to 180°, demonstrating potential applications and promising prospects in stretchable flexible electronics and wearable energy textiles.

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The strong oxidizing ability of nanoceria was verified, and a reasonable origin was hypothesized.

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Rescue rope plays an indispensable role in the emergency rescue. And with the continuous development of modern society, rescue rope has been gradually developed from only with the single mechanical function to the multi‐functional rescue rope. However, the lack of smart active warning for dangers usually leads to injury or even death at complex especially some extreme environment. Herein, a smart self‐powered rope is developed by integrating fiber‐based Zn battery unit and traditional rope unit based on the mature braiding technology, which performs desirable electrochemical performance (specific capacity of 31.1 mAh cm−3 and stable cycling stability of 81.95% after 1000 cycles). Moreover, the floatable self‐powered rope and thermoduric self‐powered rope are demonstrated in extreme environment to indicate their potential application for practical water/fire rescue. Therefore, smart active response is successfully realized with the integration toward fiber‐based Zn battery and rescue rope, which largely shorten the rescue time to protect the safety and health of the human body. This study provides an effective strategy of the construction of smart rope used in emergency rescue.