In the present review, we focused on the fundamental concepts of hydrogels—classification,
the polymers involved, synthesis methods, types of hydrogels, properties, and applications …

The flourishing development of multifunctional flexible electronics cannot leave the
beneficial role of nature, which provides continuous inspiration in their material, structural …

Conductive hydrogels (CHs) are characterized by tissue-like mechanical properties, multiple
stimuli-responsive abilities and favourable biocompatibility, enabling their wearable devices …

Flexible electrochemical supercapacitors have shown great potential in the next-generation
wearable and implantable energy-storage devices. Conductive polymer hydrogels usually …

In recent years, as an energy storage device with a fast charge and discharge speed, long
cycle life, and good stability, flexible supercapacitors (SCs) have been extensively used in …

As a new generation of energy storage and power supply devices, flexible all-solid-state
supercapacitors (FASSS) have drawn extensive concern owing to their high power density …

Recently, with the continuous development of human society and the continuous innovation
of technologies, the intelligence era has arrived. Various intelligent electronic devices …

Hydrogel electrolytes have spurred the development of flexible energy storage devices by
endowing them with liquid‐like ion transport and solid‐like mechanical elasticity. However …

Novel flexible storage devices such as supercapacitors and rechargeable batteries are of
great interest due to their broad potential applications in flexible electronics and implants …

With the rapid development of portable electronic products, wearable flexible energy storage
devices such as flexible supercapacitors (FSCs) have attracted much attention. FSC devices …