Nanocellulose (NC) is a new type of nanomaterials with unique structure

excellent mechanical properties

light weight

high specific surface area

renewable

and biodegradable properties. The characteristics and main preparation methods for the three types of nanocellulose

including cellulose nanocrystal (CNC)

cellulose nanofibers (CNF)

and bacterial nanocellulose (BC)

were discussed. At the same time

we introduce recent advances of NC derived materials in the field of electrochemistry

including supercapacitors

lithium-ion batteries

sensor

lithium-sulfur batteries

and sodiumion batteries.The application prospect of new nanocomposites with NC as the main component is prospected.