his is a special CR2032 coin cell case with Aluminum coated on the inside and outside of the positive can
his is a special CR2032 coin cell case with Aluminum coated on the inside and outside of the positive can (60pcs/pack). It can tolerate polarization of higher voltages (up to 5.5V) due to the passivation of cladding 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.
For more information on this Al-Clad coin cell case, please read a testing report by Dr. John B. Kerr's Research Group from the Lawrence Berkeley National Laboratory (LBL). MTI would like to extend our special thanks to Dr. John B. Kerr and Dr. Li Yang for their contributions and findings in this test.
Material | Stainless Steel 304 with the Aluminum coating: Aluminum-Clad on both inside and outside of the 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 (the 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. Sealing Gasket: PP Max. working temperature: 80oC |
Aluminum coating thickness | 1 micron with 99.7% purity |
Dimensions (Dia x Height) | 20mm x 3.2mm |
Shipping Weight | 2 lbs |
Shipping Dimensions | 12" x 8" x 8" |
Optional | Please click the picture below to order Al spacer and spring |
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