Study of corrosion on PVD coated current collectors in lithium-ion battery

Abstract

This work focuses on lithium-ion batteries, and more specifically on current collectors, which are one of the components of these batteries. These current collectors, usually made from a simple sheet of metal, were produced differently, before being tested to verify the viability of this new production method. Therefore the current collectors were produced by physical vapour deposition. The thin layer of metal was deposited on various kinds of substrate. These new current collectors were then compared with conventional current collectors, and tested with active materials, to check how these parts can be produced, what are the determining parameters, and if they function correctly in real-life conditions. These parts were therefore studied in terms of their electrical conductivity, then their resistance to electrochemical corrosion.