Batteries are the source of power for electric vehicles, and most electric vehicles are fitted with lead-acid batteries, which are low-cost and cost-effective. Because they are rechargeable and can be used repeatedly, they are called ‘lead-acid batteries’. Because lead-acid batteries use a high specific gravity of lead, there is an oxidation reaction during energy conversion, so the lead-acid battery casing has to withstand heavy pressure, oxidation, corrosion and high temperatures. What is the material of the lead-acid battery shell in the electric vehicle?
1, early is to take the rubber material. Rubber shell bulky, plus asphalt sealing, complex production process, pollution, and easy to blister in the process of use, so to the elimination of.
2. Transparent PVC material. This kind of battery can see the internal structure, the maintenance especially electrolyte reduction or which cell out of the problem, a clear, but precisely because the visible internal, because of the internal electrolyte turbid, difficult to see, so not accepted by the market, rarely used, now only part of the lid is left that is transparent slot opaque kind of structure form.
3, with PP plastic, automotive batteries are all taken this material, production process with heat sealing form, fast, suitable for mass production, so the material is very popular, but the plastic performance is not as good as ABS.
4、 Use ABS material. The material is well shaped, so that large specifications fixed with more. At present, the UPS battery basically take ABS, although there are attempts to use PP production UPS battery, but PP in the UPS battery is currently not a high share
Flame-retardant ABS lead-acid battery special materials. This material is highly efficient flame retardant, can give the composite material good self-extinguishing or flame-retardant, to UL94 standards; has good heat resistance, fluidity, impact resistance, low-temperature environment by the impact does not crack, the formula is specially designed, heat sealing and glue sealing effect is good.