Abstract
Ever increasing energy demand urges to impelled extensive research in the development of new eco-friendly energy harvesting and storage technologies. Energy harvesting technology exploiting renewable energy sources is an auspicious method for sustainable, autonomous, and everlasting operation of a variety of electronic devices. A new concept of an integrated self-powered system by combining an energy harvesting device with an energy storage device has been established to harvest renewable energy and simultaneously store it for sustainable operation of electronic devices. In this chapter, describes the fabrication of a self-powered system by integrating the supercapacitor with energy harvesting devices such as nanogenerator and solar cells to power portable electronic devices. Initially synthesis and electrochemical characterization of various electroactive materials for supercapacitors and further, fabrication of supercapacitor device were discussed. In conclusion, this chapter demonstrates self-powered system by the integration of energy harvesting, energy storage module with portable electronic devices. The various result validates the feasibility of using supercapacitors as efficient energy storage components in self-powered devices. The proposed self-powered technology based on energy conversion of renewable energy to electrical energy which stored in energy storage device and it will be used to operate several electronic devices as a self-powered device.
Highlights
A massive demand on the highly reliable energy sources with higher energy density and longer life to operate advanced electronic and optoelectronic devices, which have impelled extensive research in the development of new eco-friendly energy harvesting and storage technologies [1–5]
In order to alleviate these problems, renewable energy converters like solar and vibrational harvesters would be better choice to integrate with energy storage device, to achieve sustainable operation by storing the generated electric energy from energy harvesting devices
This study suggested that the self-powered device has a massive potential in wearable and portable device applications
Summary
A massive demand on the highly reliable energy sources with higher energy density and longer life to operate advanced electronic and optoelectronic devices, which have impelled extensive research in the development of new eco-friendly energy harvesting and storage technologies [1–5]. In order to alleviate these problems, renewable energy converters like solar and vibrational harvesters would be better choice to integrate with energy storage device, to achieve sustainable operation by storing the generated electric energy from energy harvesting devices. The nanogenerator is a device which can efficiently convert mechanical energy into electrical energy through piezoelectric and triboelectrification processes from our living/working environment These mechanical energy sources are uncontrollable fluctuation which reflects in output power [11–13]. It cannot be used directly to power electronic devices In this circumstance, an intermediate efficient energy storage system required to store this irregular renewable energy to achieve independent power source (stable and durable output). Researchers have been attempted to develop a new hybrid system by integrating the energy harvesting device (solar cell and nanogenerator) along with a storage device (lithiumion battery and supercapacitor) to perform a self-powered operation [8, 17–23]. (i) fabrication and integration of supercapacitor device with vibrational energy harvesters such as piezoelectric and triboelectric nanogenerator and (ii) fabrication and integration of supercapacitor device with solar energy harvesters such as a dye-sensitized solar cell (DSSC)
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