Textiled-based electrochemical energy storage devices including supercapacitors and Li-ion batteries that made use of and/or shaped into textile fibers, yarns, and fabrics, which are promising energy storage devices for wearable electronic applications. To date, the major challenge in the development of wearable energy storage devices is how to improve the electrochemical properties of the device while acquiring high flexibility and durability under wearing conditions. Recently, our laboratory has developed several yarns and fabrics-type devices, which show record­high electrochemical performances of their kinds as well as excellent flexibility. These textile­based devices can be readily integrated into different textile forms by means of weaving, embroidery, and heat pressing for wearable applications.