Abstract
A mathematical model of the process of electrochemical intercalation of a granular graphite bed in nitric and sulfuric acids that takes into account the varying physicochemical properties of the graphite matrix is proposed. The numerical solution of the problem by the finite element method shows that, in agreement with the literature data, the current distribution is nonuniform even for a granular bed of a small height (∼2 × 10−2 m), which results in the synthesis of a nonuniform product. The methods of assessing the nonuniformity of intercalation and its elimination by passing to a multistage process are proposed. The results of numerical methods can be used in predicting the technological characteristics of the final product.
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