Abstract: With the development of wearable，bendable and flexible electronic devices，the high energy and high power flexible energy storage devices attract more and more attention，which aims to match the requirements of different applications. Electrodes materials and electrolytes are the key components for the energy storage devices. Therefore，in this paper，the current developments regarding the chemical energy storage devices are introduced. At the same time，the recent developments of the flexible lithium batteries and super capacitors are emphasized， the main challenges and solutions are also analysized and summarized. At last，the prospects focused on the improvements in material developments，device design，materials process and the possible future trends are addressed.

Key words: lithium ion battery, supercapacitor, flexible device, carbon material, energy storage devices