Imperceptible Supercapacitors with High Area‐Specific Capacitance
نویسندگان
چکیده
منابع مشابه
Manganese oxide micro-supercapacitors with ultra-high areal capacitance.
A symmetric micro-supercapacitor is constructed by electrochemically depositing manganese oxide onto micro-patterned current collectors. High surface-to-volume ratio of manganese oxide and short diffusion distance between electrodes give an ultra-high areal capacitance of 56.3 mF cm(-2) at a current density of 27.2 μA cm(-2).
متن کاملPreparation of reduced graphite oxide with high volumetric capacitance in supercapacitors.
High density reduced graphite oxide was prepared via a novel precipitation-assisted method, and the micropore area was found to be above 70% of the total surface area for the as-prepared sample. Electrochemical experiments showed that the as-prepared samples exhibited high volumetric capacitance and excellent cycling stability as an electrode material in supercapacitors.
متن کاملTransition metal sulfides grown on graphene fibers for wearable asymmetric supercapacitors with high volumetric capacitance and high energy density
Fiber shaped supercapacitors are promising candidates for wearable electronics because they are flexible and light-weight. However, a critical challenge of the widespread application of these energy storage devices is their low cell voltages and low energy densities, resulting in limited run-time of the electronics. Here, we demonstrate a 1.5 V high cell voltage and high volumetric energy densi...
متن کاملHydrothermal synthesis of nanostructured graphene/polyaniline composites as high-capacitance electrode materials for supercapacitors
As known to all, hydrothermal synthesis is a powerful technique for preparing inorganic and organic materials or composites with different architectures. In this reports, by controlling hydrothermal conditions, nanostructured polyaniline (PANi) in different morphologies were composited with graphene sheets (GNS) and used as electrode materials of supercapacitors. Specifically, ultrathin PANi la...
متن کاملImprovement of system capacitance via weavable superelastic biscrolled yarn supercapacitors
Yarn-based supercapacitors having improved performance are needed for existing and emerging wearable applications. Here, we report weavable carbon nanotube yarn supercapacitors having high performance because of high loadings of rapidly accessible charge storage particles (above 90 wt% MnO2). The yarn electrodes are made by a biscrolling process that traps host MnO2 nanoparticles within the gal...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Small
سال: 2021
ISSN: 1613-6810,1613-6829
DOI: 10.1002/smll.202101704