1D–3D Carbon Nanostructures for Flexible and Ultrathin Batteries

The rising demand for electrical energy and the effect of global warming leads to a paradigm change in the electricity sector. This has led to the augmented practice of renewable energy sources. Devices capable of storing electrical energy are vital to upsurge their reliability owing to the recurrent quality of renewable energy. In the current era, battery technology has become omnipresent, from mobile electronics to transportation and grid-scale energy storage. To boost the performance of the batteries, accurate modeling of the charging profile must be taken into concern. Flexible batteries have swiftly advanced as promising energy storage devices for flexible and wearable electronics, due to the advantages of high energy density, fast charge-discharge memory effect, and stable cycle performance. Flexible electrodes have engrossed extensive consideration to sustain stable electrochemical function under deformation. Carbon materials are preferred and practical electrode materials for energy storage devices for the advantages of excellent chemical stability, abundant resources, lightweight, low electrode potential, high conductivity, tunable structure, and outstanding mechanical flexibility. In addition, the low-dimensional structure plays a significant role in enhancing structural stability, and a porous structure can effectively shorten the diffusion path of charged ions in batteries.