The OPzV battery is not a solid lead-acid battery in the sense of having solid electrodes or electrolytes like some modern lithium-ion batteries. Instead, it is a type of valve-regulated lead-acid (VRLA) battery, also known as a gel battery.
- Gel Electrolyte: OPzV batteries use a gel electrolyte rather than the liquid electrolyte found in traditional flooded lead-acid batteries. This gel electrolyte is immobilized, typically by the addition of silica, which prevents it from spilling or leaking even if the battery case is damaged.
- Tubular Plate Design: OPzV batteries often use tubular plates made of lead-calcium alloys. These plates are more robust and have a longer service life compared to flat plates found in some other lead-acid battery designs.
- Valve Regulation: Like other VRLA batteries, OPzV batteries are valve-regulated, meaning they have valves that allow gases to escape if the internal pressure becomes too high during charging. This design helps maintain a sealed and maintenance-free operation.
- Deep Cycle Design: OPzV batteries are designed for deep-cycle applications, meaning they can withstand repeated discharging and recharging cycles without significant loss of capacity.
In summary, while OPzV batteries are not solid-state batteries, they are a type of lead-acid battery with gel electrolyte and other design features that make them suitable for deep-cycle applications where maintenance-free operation and resistance to spills or leaks are important.