2024-02-09 21:00:05
Published on February 9, 2024 at 10:00 p.m.
Y-Parc industrial zone, in Yverdon, February 1, 2024. In the Leclanché factory, there is very little noise other than that of the mechanics of a main production line, largely automated. A circuit equipped with robots and cameras assembles batteries. Their central parts – cells – are delivered from another site of the group in Germany, near Strasbourg. Rectangular and gray, they look like iPads. These concentrates of lithium, cobalt, nickel, copper, zinc, aluminum, manganese and others are key cogs in the electrification of society and the energy storage that must accompany it.
On the line, the cells are plasticized, which increases their electrical resistance, then put in frames which allow them to be stacked like Lego. They are then compressed and fitted with electronic management equipment. A stack of cells – there are around thirty here, a number which varies according to needs – forms what we call a module. These are then assembled into “pacs” or strings – battery boxes which are supplied to customers. Those from Leclanché are mainly train and boat builders.
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