The environment risk assessment was presented in this paper particularly, the framework of environmental risk assessment on lead-acid batteries was established and methods for analyzing and forecasting the environmental risk of lead-acid batteries were selected.
Lead acid batteries can cause serious injury if not handled correctly. They are capable of delivering an electric charge at a very high rate. Gases released when batteries are charging – hydrogen (very flammable and easily ignited) and oxygen (supports combustion) – can result in an explosion.
The work procedure included identifying accident, analyzing risk, pollution forecast and defensive measures. By analysing the environmental risk assessment of lead-acid batteries, the study supplied direction for the preventive measures according to the forecast results of lead-acid batteries.
Lead-acid batteries also come with the risk of hydrogen off-gassing during normal operation. Off-gassing occurs when batteries, particularly lead-acid types, release gases such as hydrogen during overcharging. This can create flammable or explosive conditions if not properly ventilated.
Vented lead acid: This group of batteries is “open” and allows gas to escape without any positive pressure building up in the cells. This type can be topped up, thus they present tolerance to high temperatures and over-charging. The free electrolyte is also responsible for the facilitation of the battery’s cooling.
Implementing safety measures, such as building battery safety awareness, proper design and manufacturing, adequate ventilation, thermal management, and regular safety studies, can support in reducing the potential for accidents.