This product is designed as a ready-to-use sodium negative electrode chip for coin cell assembly, specifically developed for research on sodium-ion batteries and related energy storage systems. The chip features a composite structure consisting of a transparent protective film, a high-purity sodium layer (≥99.7%), an aluminum foil current collector, and a blue protective film. Available in standard diameters such as 15.6 mm, 14 mm, and 18 mm, with a uniform thickness of 0.45 mm, the chip ensures consistent surface smoothness and dimensional accuracy. This design minimizes common issues like surface burrs, uneven size, or micro-short circuits that can arise from manually prepared electrodes. The product is supplied in a vacuum-sealed can with argon protection, requiring handling inside a glove box. Common applications include use as the anode in CR2032, CR2025, or CR2016 button cells for evaluating electrode materials or electrolytes in sodium-based battery research.

1. There is air inside the plastic black can. Open the can outside the glove box, and take the aluminum foil bag into the glove box before unpacking (it is recommended to unpack the aluminum foil bag before use, it is better for storage, and it is not recommended to stock too much, buy as needed).

2. Hold the flat and widened tweezers with your left hand, and use the pointed stainless steel tweezers with your right hand. It is best not to use rubber tweezers to remove the film.

3. Both sides of the film (blue film, transparent film) should be removed. You can also remove the film with the help of the instructional video (remove the blue film first, then remove the transparent film). Install one battery per peeled piece, and tightly seal the remaining products in a white bottle for long-term storage.

4. The side with the blue film is aluminum foil, and the transparent film is sodium piece. Install it facing the separator and avoid installing it in reverse.

5. Both sides of the film should be removed (aluminum foil can be left unpeeled).