A Smart Self‐Powered Rope for Water/Fire Rescue

Abstract

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.

Modern Developments for Textile-Based Supercapacitors

“…PPy is one polymer that benefits from in situ polymerization and can be added to a fabric substrate such as carbon fiber felt, pineapple polyester, water hyacinth polyester, and cotton to produce a flexible electrode that exhibits faradaic responses and almost no change in current after bending. − Electrochemical polymerization is a method of depositing polymer films onto a substrate with the use of an electric field . This method can be partnered with other fabrication methods, such as dip coating, or it can be used on its own to create stretchable, flexible devices with high capacitance. ,, Electrodeposition is where the deposition of material onto a conductive surface is controlled by electric current from a solution. Metals can be deposited onto conductive fibers, or conductive polymers can be added to metal substrates.…”

“… 95 This method can be partnered with other fabrication methods, such as dip coating, or it can be used on its own to create stretchable, flexible devices with high capacitance. 6 , 34 , 96 Electrodeposition is where the deposition of material onto a conductive surface is controlled by electric current from a solution. Metals can be deposited onto conductive fibers, or conductive polymers can be added to metal substrates.…”

“…Researchers used post treatments of PDMS, PU, resin, or other polymeric material to encapsulate the system. 62 , 68 , 81 , 83 , 96 , 143 Even after encapsulating, however, rarely did the research group report their findings on how well the encapsulation held up from washing. One group used silicon rubber encapsulation to protect the system and saw no decrease in electrical output and was able to continue bending the device, 70 while another group used a resin and saw a slight increase in resistance after washing.…”

“…Researchers have noted that the poor stability of the deposited inks on textile substrates with regard to washability is a primary challenge for commercialization of these systems, but many researchers do not answer how to prevent this degradation from happening. ,,, While one research group decided removing the device from the textile before washing to avoid the degradation was necessary, most groups decided to encapsulate the system. Researchers used post treatments of PDMS, PU, resin, or other polymeric material to encapsulate the system. ,,,,, Even after encapsulating, however, rarely did the research group report their findings on how well the encapsulation held up from washing. One group used silicon rubber encapsulation to protect the system and saw no decrease in electrical output and was able to continue bending the device, while another group used a resin and saw a slight increase in resistance after washing .…”

Autonomous Electroluminescent Textile for Visual Interaction and Environmental Warning

“…Textiles are widely believed to be the most effective candidate platforms for wearable applications arising from excellent wearability, − and textile-based alternate current electroluminescent (T-ACEL) devices generally have good flexibility, high brightness, uniformity, and mechanical stability . For fabricating wearable ACEL, the common way is to assemble functional materials layer by layer onto two-dimension fabric via inkjet printing, electroless metallization, chemical deposition, screen printing, etc.…”