Ti3C2 MXene as Additive for Low‐Cost Textile Supercapacitors with Enhanced Electrical Performance

• DOI: 10.1002/admt.202301266
• Publication Date: 2023-12-04T02:52:33Z
• Authors: Sheng Yong; Chengning Yao; Nicholas Hillier; Hyunho Kim; Martin Holicky; Sihui Liu; Regan Doherty; Felice Torrisi; Stephen Beeby
• Keywords: MXenes; Separator (oil production); Power density

Abstract Textile‐based energy storage components are paramount for establishing invisible electronic textiles that do not require conventional rigid batteries. A novel and scalable fabrication method is reported introducing MXene (Ti 3 C 2 T x ) into activated carbon (AC) supercapacitors to enhance electrochemical performance. Supercapacitors prepared within a single layer of textile with phase‐inverted polymer membrane fabricated the yarn structure form porous, flexible, mechanically durable separator. introduced in two different forms: 1) multilayer (m‐MXene)powder mixed an AC slurry deposited onto textile. 2) Delaminated (d‐Mxene) nanosheets spray‐coated surface spray coated electrode. With organic electrolyte, 1 M tetraethylammonium tetrafluoroborate dimethyl sulfoxide, these electrochemically stable between +/− 2.6 V demonstrate maximum areal capacitance 148.7 mF cm −2 , density 0.921 mWh power 1.01 mW . The addition MXenes improves by combining both approaches improvement 220% achieved compared identical standard electrodes. novelty this work develop straightforward solution processing supercapacitor electrodes enabling high‐performance textile‐based devices.