ER2450 3.6V ER Battery
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Product Name: ER2450 3.6V ER battery
Open circuit voltage
Max. Pulse capability
Max. recommended continuous current
Operating temperature range
Stored in clean, dry and cool circumstances (≤20℃)
Don't charge, crush, disassemble, expose contents to water, heat above 100°C or may lead to explosion, burn or poison goods leakage. Discarded battery should be buried deeply to the ground
|Discharge characteristics at 25°C||Discharge characteristics after storage|
|Voltage vs Temperature curve||Capacity vs Current curve|
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Wide operating temperature range (-40°C ~ +85°C), up to 600Wh/Kg energy density, extremely low self-discharge rate, flat discharge characteristics, contains no cadmium, mercury or lead
ER Battery Chemical Priciple
The Li/SOCl2 battery consists of a lithium negative electrode, a carbon positive electrode, and a non-aqueous SOCl2:LiAlCl4 electrolyte. Thionyl chloride is both an electrolyte and a positive electrode active material. Other electrolyte salts, such as LiAlCl4, have been used in specially designed batteries, but the electrolyte formulation is different and the electrode performance is different. The composition of the negative electrode, positive electrode, and SOCl2 is selected by the manufacturer according to the expected performance of the battery.
The generally accepted general reaction mechanism is:
Sulfur and sulfur dioxide are dissolved in an excess of thionyl chloride electrolyte, and a certain degree of pressure is generated during the discharge due to the generation of sulfur dioxide. During storage, the lithium negative electrode, upon contact with the electrolyte, reacts with the thionyl chloride electrolyte to form LiCl, and the lithium negative electrode is protected by the LiCl film formed thereon. This passivation film is useful for prolonging the storage life of the battery, but causes voltage lag at the beginning of the discharge. The battery after long-term storage at a high temperature discharges at a low temperature, and its voltage hysteresis phenomenon is particularly noticeable.
The low freezing point (-110°C) and high boiling point (78.8°C) of the electrolyte allow the battery to operate over a wide temperature range. As the temperature drops, the conductivity of the electrolyte decreases only slightly. Li/SOCl2 batteries are toxic and flammable in certain components, so avoid disassembling the battery or exposing the open-ended battery and battery components to the air.