Al-Clad Cr2032 Coin Cell Can (20d X 3.2mm) for Li-ion Battery R&D up to 5.5V- 50 PCS/Pck

Al-Clad CR2032 Coin Cell Can (20d x 3.2mm) for Li-ion Battery R&D up to 5.5V- 50 Pcs/pck

This is a special CR2032 coin cell case with Aluminum coated on the inside of the positive can (20pcs/pck). It can tolerate polarization of higher voltages (up to 5.5V) due to the passivation of can by electrolyte component (especially LiPF6 based electrolyte system) to form a layer of AlF3. This AlF3 layer is thin enough (several angstroms) to allow electron tunneling, and simultaneously blocking the dissolution of Al3+ into the electrolyte.

Specifications
Material
Stainless Steel 304 with Aluminum coat:

Aluminum is claded on inside of POSITIVE case (bottom part, larger, connects to the Cathode with Al current collector), to prevent electrolyte from reacting with steel during high voltage charging > 4.5V.
Negative case (top part with insulating O-ring, smaller, connects to Anode with Cu current collector): Made of SS304, you may need to put Spring/Spacer in between this case and anode.
Dimensions (Dia x Height)
20mm x 3.2mm

CR2032 CR2025 CR2016 are okk for us!