Flexible energy-storage devices are attracting increasing attention as they show unique promising advantages, such as flexibility, shape diversity, light weight, and so on; these properties enable.
Flexible energy-storage devices are attracting increasing attention as they show unique promising advantages, such as flexibility, shape diversity, light weight, and so on; these properties enable applications in portable, flexible, and even wearable electronic devices, including soft electronic products, roll-up displays, and wearable devices.
Can flexible energy storage devices be used in wearable electronics?
Although flexible energy storage devices have achieved great advancements, they are still rarely used in current wearable electronics due to far more satisfactory performances. The following aspects are highlighted to convert existing academic achievements into future practical applications (Fig. 20).
Consequently, considerable effort has been made in recent years to fulfill the requirements of future flexible energy-storage devices, and much progress has been witnessed. This review describes the most recent advances in flexible energy-storage devices, including flexible lithium-ion batteries and flexible supercapacitors.
Can polymer materials be used for flexible energy storage devices?
Then the design requirements and specific applications of polymer materials as electrodes, electrolytes, separators, and packaging layers of flexible energy storage devices are systematically discussed with an emphasis on the material design and device performance.
Why should wearable energy storage devices have high flexibility and stretchability?
High flexibility and stretchability Wearable energy storage devices should have high flexibility to keep stable in various applications by the design of materials (e.g., soft electrodes, electrolytes, separators, and packaging layer) and configurations (e.g., fiber and fabric).
With the development of flexible energy storage devices and artificial intelligence, flexible energy devices are expected to have some extra smart functions beyond energy storage and conversion [14, 215].