25 February 2021 3 4K Report

Hello everyone,

I'm looking for a way to delaminate copper current collector of water-based anodes in Li-ion batteries without damaging the graphite film. I tried different materials such as HNO3 or saturated FeCl3 in organic solvents like acetone, ethanol, DMSO. They could be able to dissolve copper (depending on temperature and concentration) but the problem is that the film dissolves before copper dissolution.

I really appreciate any help.

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