Flexible electrochemical energy storage: The role of composite materials

Flexible electrochemical energy storage (EES) devices such as lithium-ion batteries (LIBs) and supercapacitors (SCs) can be integrated into flexible electronics to provide power for portable and steady operations under continuous mechanical deformation. Ideally, flexible EES devices should simultaneously possess high flexibility, high energy density, and high power density, thus requiring appropriate electrode materials, electrolytes, and...