Investigation on electrochemical performances of dryprocessed LiNi0.6Co0.2Mn0.2O2 and graphite electrode

초록

The conventional method for fabricating lithium-ion battery (LIB) electrodes heavily relies on the wet coating process,which involves the use of the environmentally harmful and toxic solvent N-methyl-2-pyrrolidone (NMP). Apart from beingunsustainable, this costly organic solvent significantly inflates the production expenses of batteries due to the need for dryingand recycling throughout the manufacturing process. In this report, we introduce a commercially viable and environmentallysustainable dry process technique. This method utilizes a (polytetrafluoroethylene)PTFE as a dry powder. We successfullysynthesize LiNi0.6Co0.2Mn0.2O2 and graphite electrodes by dry-processing using the fiberization of polytetrafluoroethylene. Theproduced electrodes exhibit a porous structure, and uniform dispersion of polytetrafluoroethylene was confirmed through F. The structural/electrochemical stability is observed at the driving voltage of the electrodes. The initial charge-discharge andcyclic voltammetry are measured and analyzed to evaluate the electrochemical performances. As a result, we could concludethat the synthesized electrodes could be sufficiently applicable to next-generation energy storage devices.

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