Flexible and Stretchable Power Sources: A Key Technology for Wearable Electronics

A Critical and Comprehensive Review

Flexible and stretchable power sources represent a key technology for the realization of wearable electronics. This review presents a comprehensive overview of recent advances in the research and development of flexible batteries, including discussions on the device configurations, materials, and performance.

The review begins with an overview of the different types of flexible batteries that are currently being developed, including fiber-shaped, thin-film, and stretchable batteries. The advantages and disadvantages of each type of battery are discussed, and the current state-of-the-art performance is presented.

Device Configurations for Flexible Batteries

One of the key challenges in developing flexible batteries is to find device configurations that can provide both high power output and flexibility. This review discusses the different device configurations that have been proposed, including planar, cylindrical, and 3D structures. The advantages and disadvantages of each configuration are discussed, and the current state-of-the-art performance is presented.