Battery is the device that converts the chemical energy of electrode material into electrical energy through electrochemical reaction. Batteries can be divided into primary and secondary batteries according to whether the electrochemical reaction is reversible or not.
In modern battery design, the electrically active material used in the electrodes are powders, which require a mechanical support structure to hold them in place during manufacturing process. Expanded metal foil (micro expanded metal) is used as battery mesh to be widely used in the battery production as support structure, current collector and provide electrical connection point for the external circuit.
Primary battery will be discarded after single use. It contains zinc manganese battery, alkaline battery, silver zinc batteries and so on.
Secondary battery can be recycled for multiple use. It contains nickel--cadmium battery, nickel-hydrogen battery, lithium-ion battery, lead-acid battery.
| Material | Pure Silver Sheets |
|---|---|
| Strand Width | 0.06–0.09 mm |
| Mesh Opening | 0.5 × 1.0 mm, 1.0 × 2.0 mm, 1.25 × 2.5 mm, 1.5 × 2.5 mm, 1.5 × 3.0 mm |
| Width | 21–240 mm ±0.4 mm |
| Overall Thickness | 0.05–0.30 mm ± 0.01 mm |
| Density | 100–400 g/m2 ± 20 g/m2 |
| Folding Edge Width | 2.0–3.0 mm |
| Flexibility | no cracking when folding for 10 times at 180 degree |
| Overall Length | ≥ 300 m and with only 2 joints |
| Tensile Strength | ≥ 2.5 kg (sample with 40 mm width and 300 mm length) |
| Elongation | ≤ 3% (sample with 40 mm width and 300 mm length) |
| Material | Pure copper (copper content ≥ 99.9%) or Brass (copper content ≥ 65%) |
|---|---|
| Nickel Coating Thickness | 1.5–1.8 μm |
| Mesh Opening | 0.5 mm × 1.0 mm, 0.8 mm × 1.2 mm, 1.0 mm × 2.0 mm, 1.25 mm × 2.5 mm, 1.5 mm × 2.5 mm, etc. |
| Overall Thickness | 0.1–0.4 mm ± 0.01 mm |
| Overall Width | 21–300 mm ± 0.2 mm |
| Folding Width | 2.0–2.5 mm ±0.5 mm |
| Density | 150–500 g/m2 ± 10 g/m2 |
| Flexibility | no cracking when folding for 10 times at 180 degree |
| Overall Length | ≥ 300 m and with only 2 joints |
| Material | TA1 pure titanium foil (titanium content ≥99.6%) |
|---|---|
| Width | 100 mm (available for slitting and edge folding) |
| Thickness | 0.05–0.25 mm ± 0.01 mm |
| Density | 150 g/m2 ± 10 g/m2 |
| Mesh Opening | 0.75 × 1.25 mm |
| Strand Width | 0.25 mm |
