Cyclic voltammetry of electrodes based on LiMn2O4 with additive conducting polymer in water and organic electrolytes

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УДК 541.136


Electrochemical properties of the electrode based on lithium-manganese spinel (LiMn2O4), which were produced with conducting and binder additives using a conductive polymer poly-3,4-ethylenedioxythiophene/polystyrene sulfonate (PEDOT:PSS) with carboxymethylcellulose (CMC) were investigated by cyclic voltammetry in aqueous and organic solutions of lithium perchlorate. Values of specific capacitance of the cathode material and their dependence on potential sweep rate were obtained. A comparison of the functional characteristics of a standard composition of materials using the traditional binder of polyvinylidene fluoride (PVDF) and the modification composition using the conductive polymer dispersion was conducted. It is shown that the introduction of the conductive polymer into the cathode material lead to an increase of specific capacity (up to 10%) and improved stability of the material during the cycling.


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