Ein Hinweis zu den neuen Terminals, ein "Durchschrauben" ggf. mit einer sich festsetzenden Mutter kann katastrophale Konsequenzen hinsichtlich Kurzschluss haben.
Ich empfehle dringend, 1. die Stifte in den Terminals mit Schraubensicherung im Gewinde der Terminals zu sichern und 2. ein wenig Isolatormatrial zusätzlich zwischen Terminal und Außenhülle zu legen und dort mit dem Klebeband eurer Wahl zu sichern.
Hier ein Science paper wie sich unterschiedliche Verpressung (0kN, 3kN, 6kN,9kN) von prismatischen LFL Zellen auf die Entstehung und Ausprägung des Thermal Runaway auswirkt.
Conclusions
This paper presents the pioneering study on the TR and venting behaviors
of LFP batteries under different preload forces. The experiments
were conducted on 280 Ah LFP batteries triggered by overheating, and
some behavioral manifestations of the batteries were monitored. The
conclusions drawn from this study are listed as follows.
(1)The preload force has a great effect on the safety venting and the TR time. As the preload force increases, the safety vent opens earlier. At
0, 3 and 6 kN, the TR of the LFP battery occurs after the safety venting,
and the TR is advanced with the increase of preload force. At 9 kN, the
TR occurs at 536 s after the safety venting due to excessive preload force.
(2)The 280 Ah LFP battery has two peaks of expansion force during
TR, and the expansion peaks correspond to the peaks of gas pressure
from the battery. The gas release of the LFP battery is horizontal and
vertical at the same time, and the battery expansion behavior has a
mitigating effect on gas pressure. At 0 and 9 kN, the expansion behaviors
of the LFP battery are smaller during TR. The mitigation of the gas
pressure is small, and the gas venting pressure is large.
(3)By analyzing the gas composition and venting velocity of the
battery during TR, the order of the measured gas composition percentage
of the LFP battery under four preload forces is CO2 > CO > CH4 >
C2H4 > HCl. The preload force has little effect on the gas composition
percentage. However, the total gas volumes at 6 and 9 kN are twice as much as the total gas volumes at 0 and 3 kN. Similarly, the maximum gas
venting velocities at 0 and 9 kN are much greater than the maximum gas
venting velocities at 3 and 6 kN. The preload force has a significant effect on the total gas volume and the maximum gas venting velocity of the LFP battery.
(4)The TR hazard assessment model is constructed. By comparing the TR hazard of the 280 Ah LFP batteries under four preload forces, it is concluded that the TR hazard is the smallest at 3 kN, and the TR hazards are the largest at 0 and 9 kN.