Cost-Effective and Eco-Friendly Carbon-Based Nanomaterials in Wearable Energy Storage Devices

Abstract

The growing concerns of pollution and subsequent climate change have garnered researchers and enthusiasts all over the world to strive forward towards a sustainable and renewable energy economy. Nevertheless the energy production is not sufficient enough until, it is stored and utilised adequately. Henceforth, the electrochemical energy storage devices such batteries and supercapacitors have find a prominent place in the list. Quite recently, wearable energy storage devices can be a game changing for the energy storage industries. Thus, the search of competent electrodes for potential device is incalculable. The nanomaterials based electrodes are attracting the interest of scientist because of their efficient capacity in energy storage.In the nanomaterials, the physical and chemical properties can be extensively tuned by parameters such as morphology, distributions, composites etc. Besides that the electrolyte in an energy storage device also plays a vital role for the operating potential and cycle life of the device. The conductive electrolyte provides pathway for easy ion movements during charge and discharge of device. The carbon-based nanomaterials such as graphene, carbon quantum dots, activated carbon etc., can be used as negative electrode. These can be also used as positive electrodes when composite with some metal oxides, hydroxides or sulphides. These electrode materials can be synthesised by chemical methods or by carbonising the natural products such as dry leaves, fruits, peals, milk etc. Most interesting process to extract carbon is recycling the wastes viz., tyres, shoot, dry cells etc. to have an eco-friendly environment. Thus realize highly stable device, the development of carbon-based electrode materials is imperative. In this work, generation of efficient carbon-based electrodes by recycling of waste for energy storage devices will be presented in details.The wearable energy storage devices are emerging area for future electronics technology. Wearables are not just a smartwatch, but a whole range of wearable devices, including biosensors, biomedical equipment, renewable charged devices etc. These devices have tremendous potential to improve quality of life and safety. Researchers and industries are involved in developing carbon-based electrodes for wearable sensors and self-powered devices to create a new generation of wearables with high outcomes to meet the consumer demand. Henceforth, the generated carbon-based materials can be potential electrodes in wearable energy storage devices.Key words: Nanomaterials, Recycling, Carbon, Energy, Wearable Electronics, Capacity