A one-pot self-assembled AgNW aerogel electrode with ultra-high electric conductivity for intrinsically 500% super-stretchable high-performance Zn–Ag batteries

Abstract

Aqueous Zn-Ag batteries are promising candidate for the energy supply of stretchable and wearable electronics due to their stable voltage output and high energy density. However, due to the weak...

Anisotropic Silver Nanowires/Activated Nanofiber Aerogels for Electromagnetic Shielding

“…Simultaneously, the presence of a weak intensity peak indicates the deprotonation of ANF via chemical cleavage, leading to a reduction in crystallinity while preserving their molecular chain structure. Moreover, following the incorporation of AgNWs into the composite aerogel, distinct diffraction peaks appeared at angles of 37.8, 44.2, 63.8, 77.8, and 81.1°, corresponding to the (111), (200), (220), (311), and (222) crystal planes of fcc silver crystals, respectively. , Meanwhile, an increase in AgNWs content within the composite aerogel led to a drop in the distinctive peak intensity of ANF, while the equivalent characteristic value intensity of AgNWs increased, aligning with established findings. Importantly, the distinctive diffraction peak of ANF remained unchanged in its position even after the incorporation of AgNWs, suggesting that ANF maintained its inherent crystal structure.…”

Ultra-durable and flexible fibrous mild quasi-solid-state Ag–Zn batteries with Na2SO4electrolyte additive

“…13 As promising alternatives to conventional rechargeable batteries based on organic electrolytes, aqueous rechargeable batteries have attracted extensive attention due to the advantages of low cost, incombustibility, high security, and high ionic conductivity of aqueous electrolytes. 14 Among numerous ARBs, aqueous rechargeable Zn-based batteries such as Zn–MnO 2 batteries, 15 Ag–Zn batteries, 16 and Zn–Ni batteries 17 have been regarded as promising substitute energy storage devices owing to the high abundance of Zn metal sources, their nontoxicity and environmental benignity. 18 Among various Zn-based batteries, silver–zinc (Ag–Zn) batteries are one of the most mature aqueous batteries with a high energy density and an ultra-flat operating voltage that not only deliver a comparable specific energy density to commercial lithium-ion batteries but also offer high safety and effortless large-scale preparation.…”

“…However, the Ag–Zn batteries still suffer from poor cycling performance, which principally originates from the migration of Ag + ion from the cathode to the electrolyte and the problems of Zn anode formation during the cyclic measurement, particularly in alkaline electrolytes. 16 These deficiencies not only restrict the wide application of Ag–Zn batteries but also cause an enormous waste of metal resources. Aiming at alleviating the migration of Ag + ion, in recent years, some valid approaches have been established to prolong the cycling performance of Ag–Zn batteries, for example, applying cellophane film, 22 introducing a protective layer, 23 and replacing traditional alkaline electrolytes with mild electrolytes.…”

Study of bismuth oxide, and other metal oxides, as positive electrodes in zinc based batteries

“…Recientemente se han desarrollado baterías flexibles de Ag-Zn, de estado casi sólido, como fuente de energía para los dispositivos electrónicos flexibles de próxima generación (72)(73)(74), pero existen varias cuestiones intrínsecas que deben abordarse antes de poder desarrollar su aplicación (75).En general, las baterías flexibles de Ag-Zn sufren de baja capacidad debido a la adición de aglutinantes inertes y una baja área superficial, lo que limita su aplicación en dispositivos electrónicos que requieren de una gran capacidad y alta potencia (75). Se han desarrollado nanocables derivados de estructuras metalorgánicas de Ag y aerogeles con elevadas áreas superficiales, para emplearlos como cátodos sin aglutinantes en baterías de Ag-Zn (76). Sin embargo, la sinterización a alta temperatura y la compleja preparación del aerogel restringen su aplicación a gran escala y es necesario seguir mejorando su capacidad.…”