Redox and conductive underwater adhesive: an innovative electrode material for convenient construction of flexible and stretchable supercapacitors

Abstract

Flexible supercapacitors (SCs) are promising energy storage devices for wearable and soft technologies. However, efforts to obtain reliable performance during mechanical deformation have been frustrated by the inevitable displacement and...

Taming of heteropoly acids into adhesive electrodes using amino acids for the development of flexible two-dimensional supercapacitors

“…However, the intrinsic mismatch in Young's modulus and bulk strain between the electrode and electrolyte layers typically causes inevitable interfacial displacement and delamination during repeated mechanical deformation, significantly increasing the interfacial contact resistance between the electrode and electrolyte layers [32]. Consequently, the charge/discharge rate is severely diminished, and the energy storage performance and stability are suppressed [34]. In addition, integrated HPA-based SC devices in series for high-voltage output still depend on many conducting metal wires [35], which significantly limits their actual application.…”

Recent advances in adhesive materials used in the biomedical field: adhesive properties, mechanism, and applications

“…19,20 This may be attributed to the functional needs of adhesives in the same industry being similar. 21 In addition, traditional medical adhesives have limited functional requirements and usually only partially satisfy the required mechanical properties, such as bond strength. 22 In particular, adhesives often require a variety of special properties to meet the complex medical requirements of biomedical applications.…”

A Hofmeister effect induced hydrogel electrolyte–electrode interfacial adhesion enhancement strategy for energy-efficient and mechanically robust redoxcapacitors

“…[24][25][26][27] This rather crude assembly process inevitably leads to the delamination of the components during repeated mechanical deformation, especially due to strain mismatch and the lack of tough interfacial adhesion between the components. [28][29][30][31] These drawbacks greatly undermine the achievable electrochemical performance and mechanical robustness of the exible ZHSCs for wearable applications. Therefore, more reasonable device architecture based on cathode materials with higher charge storage capacities and an advanced assembly process urgently requires exploration to effectively boost the energy density and power output stability, and more signicantly, the mechanical stability of the exible ZHSCs.…”