The Evolution of Smartphone Battery Technology: From the First Mobile Phone to Modern-Day Devices and Future Advancements

Smartphones have become an integral part of life in this world and play key roles as productivity tools, entertainment, and communication. Also, with these day-to-day improvements in technology, smartphones have evolved to provide strong power with little effort. However, increasing dependence on these has led towards the rising concern about their battery life. With every growing demand for a longer battery life, there has been a great improvement in battery technology. Starting from early models all the way up to today's latest technologies, this study focuses on lithium-ion batteries and a selection of the emerging alternatives. The promising future innovations which include solid-state, sodium-ion, graphene-based, lithium-sulfur, and lithium-silicon batteries are compared against the technology of lithium ions available today and are depicted as bringing about a new revolution in the performance level of batteries as well as extending smartphone usage.