MXene-enabled textile-based energy grid utilizing wireless charging

MXenes are integrated into wireless charging coils printed onto textiles, serving as a conductive adhesive between MXene textile components. These MXene coils can power MXene-textile supercapacitors, allowing electromyography measurements with epidermal MXene electrodes and active heating with printed MXene-textile filaments. • MXenes can be integrated into textiles for conductivity, energy storage, sensing, and thermal management. • MXenes can be directly printed onto textiles to make induction coils. • MXene induction coils can produce 100 mW of power. • Induction coils can be used to wirelessly charge e-textile devices. As the Internet of Things (IoT) expands, electronics will take on new form factors. With the ubiquity of textiles in our daily lives, integrating functionality into them is a promising proposition. Realizing a future with textile-based electronics (e-textiles) will require on-textile power supplies. Due to their high conductivity, electrochemically active surface, and ability to produce additive-free coatings from aqueous inks, MXenes are an ideal material to integrate into textiles to add functionality as well as generate and store electrical energy. Herein, we demonstrate an on-garment energy grid utilizing MXenes in textile-based supercapacitors and wireless chargers. Our on-garment energy grid can power real-world electronics, including peripheral electronics performing environmental sensing and data transmission, including an all-MXene surface electromyography (sEMG) sensor with real-time data transmission. Finally, we create a fully wireless textile-MXene joule heater directly powered by our MXene coil.