The results indicated when Cu and Al were used as anode and cathode current collectors respectively, they both (exhibited) the properties of low lithium intercalating capacity, high electrochemical stability and decreasing the electrode polarization.

A time space field based algorithm is proposed, which introduces the array encode to improve the embedding efficiency, hide the information into the least significant three bit planes to extend the embedding capacity, pick the pixel whose grey value greater than certain valve value as cover pixel to prevent the image to lose the nature looking.

With the main purpose of improving the embedding capacity and concealment,using Human Auditory System (HAS) masking properties,an audio steganography algorithm based on lifting wavelet transform and matrix coding to embed secret information was proposed.

Structure of carbon materials prepared from coal and its performance of lithium insertion;

The microstructure and electrochemical lithium intercalation of artificial graphite granules with coating modification are analyzed with the help of SEM,FTIR,X-ray diffraction and electrochemical tests.