Elements and Structure as Well as the Electrochemical Property of the Carbon Derived from Ni²⁺ Ion Adulterating Polystyrene Canon Exchange Resin

The polystyrene canon exchange resin were exchanged byNi²⁺ ions and then were carbonized to make resin carbon. The elements and structure of the resin carbon were analyzed, and the electrochemical properties of the resin carbon as the electrode of the lithium ion cell were also investigated. The test shown that the element contents of the hydrogen and oxygen were increased and the one of the sulpher was fall for the resin carbon material derived fromNi²⁺ ion adulterating polystyrene canon exchange resin to compare with the one from the noNi²⁺ ion adulterating resin. The test also found that it is to increase the graphite degree of the resin carbon, to accelerate the bigger stratum graphite minicrystal structure to form, as well as to be prone to array in the uprightness direction of the strata graphite minicrystal for theNi²⁺ ion adulterating resin. The electrochemical test also proved that the lithium ion cell, was assembled by the resin carbon derived fromNi²⁺ ion adulterating resin, had much better electrochemical property than the one from noNi²⁺ ion adulterating resin, and the capacity of the charge and discharge of the cell was increased about 20 (mA·h)/g in average, at one time, the first charge and discharge irreversibility of the lithium ion cell was fall evidently.