Construction Of Lead-Acid Battery Chargers

Fiberglass tubular anode plates: These consist of a flexible fiberglass tube attached to a comb-shaped grid (core metal) made of lead alloy. Lead powder is filled between the tube and the core metal, and the tube is then sealed. This process causes a change, producing an active material.

Because the active material does not detach and has good contact with the electrolyte, it is an excellent electrode plate material. Batteries using this type of plate are the preferred choice for electric vehicles. Braided tubing is made of 9-micron (μm) fiberglass woven into a tubular shape. It has good elasticity, is resistant to expansion and contraction, and has excellent electrolyte permeability. This type of tubing is the best product and has a long history of good performance.

Paste-type electrode plates: These are formed by coating a lead powder paste, refined from dilute sulfuric acid, onto a lead alloy grid. After drying, the active material is formed. This method has long been used in the cathode plates of lead-acid batteries, and also in the anode plates of automobile and light truck batteries.

Separator: Prevents short circuits between the anode and cathode plates without hindering ion flow between them. It also does not deteriorate or release impurities even after prolonged use. Lead-acid batteries generally use a rubber separator.

Battery Casing: Highly acid-resistant and mechanically strong. Electric vehicle battery casings are made of a tough synthetic resin through special treatment, resulting in exceptionally high mechanical strength. The top cover also uses the same material and is heat-fused together.

Electrolyte: The specific gravity of the electrolyte is standardized at 20°C. The standard specific gravity of the electrolyte in an electric vehicle battery when fully charged is 1.280.

Fluid Cap: The function of the fluid cap is to release gases generated during charging, add pure water, and measure specific gravity.