Electroplated Aluminum for Lithium Batteries
Aluminum coated CR2032 “coin cell” bases are available now!
Coin cells, commonly used in research to test battery materials, are better protected against corrosion when coated with high purity aluminum. This is due to the coating’s unique combination of high purity, strong adhesion, and pore-free structure. The surface of the aluminum plating is pure and consistent, facilitating experimentation, testing, and characterization of battery materials.
Our aluminum plating greatly exceeds the mechanical and workmanship requirements of MIL-DTL-83488D, a US government specification for high purity aluminum coatings.
- Purity: Typically >99.99%
- Structure: Fully dense, pore-free, and granular microstructure
- Thickness: 10 micrometers (0.0004”) or more
- Adhesion: Greater than 75 MPa
- Corrosion Resistance: 2X criteria per ASTM-B117 accelerated corrosion testing
Mechanical properties for the aluminum plating are linked here.
Electroplated aluminum provides a nearly contaminant-free highly pure surface. The coating is usually more than 99.99% pure, two orders of magnitude better than the minimum recommended aluminum current collector purity of 98%.
Applications such as electric vehicles, renewable energy systems or medical devices can benefit from the improved electrochemical stability and corrosion resistance of AlumiPlate® Aluminum.
- Extends the life and integrity of the cathode current collector by retarding corrosion
- Lessens Al, F and impurity migration that can degrade the solid electrolyte interface (SEI)
- Lowers possibility of dissolved contaminants degrading the electrolyte
High purity aluminum can improve the electrochemical stability and corrosion resistance of lithium batteries. The plating reduces cathode contact degradation, which affects battery performance, safety, capacity, resistance, and thermal runaway properties. Additionally, aluminum plated coin cells provide an ideal test bed for novel electrolytes that require more electrochemically stable and corrosion resistant battery materials.
Surface engineering modifications of the plating can enhance battery energy and power density, charge and discharge efficiency, cycle life and other factors that affect battery performance.
Our plating engineers are ready to collaborate and customize the plating based on your application. Please contact us for pricing and availability of aluminum coated coin cells.