Stress-responsive, highly flexible, and breathable nanocomposite sponges show an electrical conductivity from 1.7 to 166.6 S/cm depending on the applied stress. Key for the responsive electrical conductivity of the sponges is the change of percolation of the silver nanowires. These sponges made of short electrospun fibers and silver nanowires could be applied without any amplifier for the operation of automobile bulbs and as an efficient Joule heater. The time required for electric heating (current on) and cooling is very short. Interestingly, the maximum temperature reached by electric heating depends on the compression status. The higher the compression status, the lower is the maximum temperature, which is in accordance with the understanding of Joule heaters. It is noteworthy that these sponges are thermally, chemically, and mechanically very stable. These conductive sponges will open a new area for novel conductive devices with relevance for real-world applications.

中文翻译：

---

双网状银纳米线/聚酰亚胺多孔低密度可压缩海绵电导率的探讨

应力响应性，高度柔韧性和透气性的纳米复合海绵根据所施加的应力显示出1.7至166.6 S / cm的电导率。海绵的响应电导率的关键是银纳米线渗滤的变化。这些由短电纺纤维和银纳米线制成的海绵可在不使用任何放大器的情况下用于汽车灯泡的运行，并可作为高效的焦耳加热器使用。电加热（通电）和冷却所需的时间非常短。有趣的是，电加热达到的最高温度取决于压缩状态。压缩状态越高，最高温度越低，这符合焦耳加热器的理解。值得注意的是，这些海绵是热化学的 并且机械上非常稳定。这些导电海绵将为与现实应用相关的新型导电设备开辟新的领域。