ER Series Lithium Thionyl Chloride (Li-SOCl2) batteries feature a metallic lithium anode and thionyl chloride (SOCl2) as the active cathode. They offer the highest specific capacity and specific energy among primary lithium batteries, making them ideal for modern, high-drain electronic devices.
Key Features of ER Series Li-SOCl2 Batteries
High and Stable Operating Voltage
These 3.6V lithium thionyl chloride (Li-SOCl2) batteries provide a nominal voltage of 3.6V, and the operating voltage remains exceptionally stable throughout their entire service life.
High Energy Density
Delivers industry-leading energy density up to 650 Wh/kg.
Ultra-Long Shelf Life
Experience less than a 2% annual capacity loss when stored at +20℃. Built with a hermetic glass-to-metal seal, these batteries can be stored for over 10 years at normal room temperature.
Wide Working Temperature Range
Designed for extreme environments, the batteries operate reliably in temperatures ranging from -60℃ to +85℃.
3.6V Li-SOCl2 Battery Specifications
| Model | Size | Nominal Voltage (V) | Nominal Capacity (mAh) | Max. Continuous Current (mA) | Max. Pulse Current (mA) | Working Temperature Range (℃) | Max. Outside Dimension (mm) | Weight (g) |
|---|---|---|---|---|---|---|---|---|
| Bobbin Type | ||||||||
| ER14250 | 1/2AA | 3.6 | 1200 | 15 | 50 | -55 ~ +85 | φ14.5*25.5 | 10 |
| ER14335 | 2/3AA | 3.6 | 1650 | 35 | 60 | -55 ~ +85 | φ14.5*33.5 | 13 |
| ER14505 | AA | 3.6 | 2600 | 50 | 130 | -55 ~ +85 | φ14.5*50.5 | 19 |
| ER17335 | 2/3A | 3.6 | 2200 | 40 | 100 | -55 ~ +85 | φ17.0*33.5 | 19 |
| ER17505 | A | 3.6 | 3500 | 80 | 160 | -55 ~ +85 | φ17.5*50.5 | 26 |
| ER18505 | A | 3.6 | 3800 | 130 | 180 | -55 ~ +85 | φ18.5*50.5 | 32 |
| ER26500 | C | 3.6 | 8500 | 150 | 300 | -55 ~ +85 | φ26.2*50.0 | 58 |
| ER34615 | D | 3.6 | 19000 | 200 | 350 | -55 ~ +85 | φ34.2*61.5 | 107 |
| ER261020 | CC | 3.6 | 17000 | 200 | 400 | -55 ~ +85 | φ26.2*100.0 | 100 |
| ER341245 | DD | 3.6 | 35000 | 400 | 600 | -55 ~ +85 | φ34.2*125.0 | 220 |
| Spiral Type | ||||||||
| ER14250M | 1/2AA | 3.6 | 800 | 200 | 300 | -55 ~ +85 | φ14.5*26.3 | 11 |
| ER14335M | 2/3AA | 3.6 | 1300 | 200 | 400 | -55 ~ +85 | φ14.5*33.7 | 14 |
| ER14505M | AA | 3.6 | 2200 | 500 | 1000 | -55 ~ +85 | φ14.5*50.5 | 21 |
| ER17335M | 2/3A | 3.6 | 1900 | 500 | 1000 | -55 ~ +85 | φ17.0*33.8 | 20 |
| ER17505M | A | 3.6 | 2700 | 1000 | 2000 | -55 ~ +85 | φ17.0*50.5 | 29 |
| ER18505M | A | 3.6 | 3500 | 1000 | 2000 | -55 ~ +85 | φ18.5*50.5 | 33 |
| ER26500M | C | 3.6 | 6500 | 1500 | 2500 | -55 ~ +85 | φ26.2*50.0 | 57 |
| ER34615M | D | 3.6 | 14500 | 2000 | 4000 | -55 ~ +85 | φ34.2*61.5 | 110 |
Li-SOCl2 Battery Applications
These robust ER Series batteries are highly suitable for Smart Meters (Water, Electricity, Gas, Heat), ETC (Electronic Toll Collection) Systems, alarms and wireless security devices, RFID tags, marine and oceanographic equipment (like Tsunami Detectors, Life Jackets, and Buoys), Oil & Gas exploration tools, and demanding military systems.
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