ER9V Li-SoCl2 Battery (1200mAh) | Pkcell

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Passivation is an interesting natural phenomenon observed in Lithium Thionyl Chloride (LiSO₂Cl₂) batteries! When lithium metal touches the thionyl chloride (SOCl₂) electrolyte, a thin, protective layer forms on the surface of the lithium negative electrode. This layer, mostly made up of Lithium Chloride (LiCl), creates a high-resistance barrier that prevents a continuous reaction between the lithium and the electrolyte. Isn't it fascinating how this process helps maintain the battery's performance?

Passivation has some excellent benefits along with a few potential drawbacks that are important to consider:

Benefits:

• Low Self-Discharge: The passivation layer does a fantastic job of slowing down any unwanted side reactions between the lithium and the electrolyte, leading to an impressively low self-discharge rate. Thanks to this, LiSO₂Cl₂ batteries can be stored for many years, often over 10 years, while still keeping most of their capacity intact.
• Long Shelf Life: Because of the low self-discharge, these batteries can hold onto their energy for quite an extended period, which is great for long-term storage.

Potential Drawbacks:

• Voltage Delay: When a passivated battery starts discharging—especially after being stored or during high-current pulses—the current first needs to break through or dissolve the high-resistance passivation layer. This can temporarily drop the battery's voltage below its normal operating level before it bounces back. This occurrence is often referred to as "voltage delay."

The nominal voltage of an ER9V battery is 9V, and its capacity typically ranges from 1200mAh to 1500mAh, depending on the brand and design. It provides a stable output over a long period.

ER9V batteries are widely used in smoke alarms, wireless security devices, gas detectors, asset tracking systems, medical instruments, and industrial monitoring equipment that require long-lasting and reliable 9V power.

No. While both are 9V in output, ER9V is a lithium-based primary battery, offering much longer life, higher energy density, and a wider temperature range than traditional alkaline 9V batteries.

Only if your device supports lithium batteries. ER9V offers better performance but is not rechargeable and may not be compatible with all devices due to voltage curve differences and size tolerances.

To maintain ER9V batteries effectively, store them in a cool, dry place away from direct sunlight or heat sources, ideally at room temperature. Avoid short-circuiting the terminals, and ensure the battery is not exposed to mechanical stress or moisture. When used in long-term applications, periodically inspect battery terminals for corrosion and ensure proper electrical contact. Always follow the manufacturer's guidelines for handling and storage to maximize shelf life and performance.