How did the oxygen tank explode on Apollo 13?

The oxygen tank explosion on Apollo 13 was caused by a combination of factors, including a damaged thermostat and flammable materials inside the tank. During a pre-launch check, the tank was subjected to a higher voltage than it was designed to handle, leading to a short circuit that ignited insulation. This resulted in an explosion on April 13, 1970, severely damaging the service module and jeopardizing the mission. The crew had to rely on the lunar module as a lifeboat to safely return to Earth.