−4°F c'est -15°C. En gros un hydrogel qui reste flexible même très froid et qui pourrait alimenter des objets connectés. Je cite:
Consequently, the electrolyte maintained both ionic conductivity and mechanical performance at temperatures of -4 degrees Fahrenheit, unlike traditional hydrogel systems. Moreover, energy storage devices built using the materials retained 98 percent of their performance after 45,000 charge-discharge cycles.
Park highlighted the innovation’s significance. “This work introduces a new design strategy for hydrogel electrolytes based on liquid metal and provides a viable platform for next-generation wearable electronics and flexible energy storage systems operating under extreme conditions,” he concluded in a press release.
Source: interestingengineering.com
