Recommendations to Mitigate Passivation EffectsAvoid prolonged inactivity: Long periods of inactivity can intensify passivation. Choose quality products: Not all LiSOCl 2 batteries are equal.
Why is passivation important in a battery?
However, the passivation must also be considered when the battery is used for the first time. The passivation layer over the battery's anode obstructs the flow of current and thus provokes a drop in the operating voltage. With continuous operation, the passivation layer is gradually eroded, so the operating voltage raises to its normal level.
How does temperature affect a battery cell's passivation layer?
Then the cell is capped and sealed. The passivation “layer” continues to “grow” thicker with time until reaching equilibrium dependent on the temperature and age of the battery cell. Higher temperature causes a thicker passivation layer, thus storing at cooler (room) temperature helps mitigate passivation layer growth.
Where does passivation occur in a lithium battery?
Since passivation begins to occur as soon as the lithium metal battery cell is manufactured, it occurs anywhere the cell or battery pack using the cell is located. Thus passivation is occurring naturally in the battery while in transit, in storage, at the shop, at the rig, or downhole even while operating, if current loads are very low. Why?
Does passivation affect the shelf life of lisocl 2 batteries?
Regarding the shelf life of LiSOCl 2 batteries, passivation has a positive effect. However, the passivation must also be considered when the battery is used for the first time. The passivation layer over the battery's anode obstructs the flow of current and thus provokes a drop in the operating voltage.
Battery de-passivation is a process that “conditions” the battery for proper operation.
How do I avoid re-passivation of a battery?
In order to avoid this re-passivation, specific depassivation currents are defined for each battery type. For an ER14505J battery, for example, a continuous load current of 30 µA is recommended.