Abstract: This disclosure relates to systems, methods, and techniques for estimating battery parameters using a battery analysis system. In certain embodiments, the system receives current data for a battery cell, preprocesses the data to reduce frequency and amplitude, and executes a shallow estimation function using a reduced-order electrochemical model to estimate battery parameters based on the preprocessed data. In some embodiments, a deep estimation function, which utilizes a full-order electrochemical model, may be utilized to further refine the battery parameter estimates if higher accuracy is desired. Other embodiments are disclosed herein as well.

Abstract: The present invention relates to a negative electrode active material including a silicon-based core particle and an outer carbon coating layer formed on the silicon-based core particle, wherein the outer carbon coating layer contains graphene having a D/G ratio of 0.35 or less in the Raman spectrum.

Abstract: The present invention provides graphene in which a polymer having a functional group capable of improving the dispersibility of graphene is bonded to the surface of the graphene. The present invention also provides a method for preparing the graphene described above.

Abstract: The present invention relates to a method for preparing a functionalized graphene. The method for preparing a functionalized graphene according to the present invention can functionalize graphene by a simple method and does not use any other substance other than graphene and a salt containing a double bond, thereby enabling functionalization of graphene while exhibiting characteristics inherent to graphene.

Abstract: The present invention provides graphene in which a polymer having a functional group capable of improving the dispersibility of graphene is bonded to the surface of the graphene. The present invention also provides a method for preparing the graphene described above.

Abstract: The present invention relates to a method for preparing a functionalized graphene. The method for preparing a functionalized graphene according to the present invention can functionalize graphene by a simple method and does not use any other substance other than graphene and a salt containing a double bond, thereby enabling functionalization of graphene while exhibiting characteristics inherent to graphene.

Abstract: The present disclosure relates to a graphene-nanomaterial complex, a flexible and stretchable complex including the same, and methods for manufacturing the complexes. A graphene-nanomaterial complex according to a first aspect of the present disclosure includes a plurality of graphenes and nanomaterials disposed between the graphenes, in which the graphenes are not disposed on the same plane to form a three-dimensional (3D) graphene structure, and the graphenes, the nanomaterials or both form an electrical network.

Abstract: The present disclosure relates to a graphene-nanomaterial complex, a flexible and stretchable complex including the same, and methods for manufacturing the complexes. A graphene-nanomaterial complex according to a first aspect of the present disclosure includes a plurality of graphenes and nanomaterials disposed between the graphenes, in which the graphenes are not disposed on the same plane to form a three-dimensional (3D) graphene structure, and the graphenes, the nanomaterials or both form an electrical network.