ER14505S 3.6V 3/2C High-temperature Battery for Geothermal product
Primary Lithium Battery ER14505S 3.6V 3/2C High-temperature Battery for Geothermal Downhole Electronic Pressure Gauges
Introduction
Primary lithium batteries are a type of non-rechargeable battery that offers high energy density, long shelf life, and excellent performance in a wide range of temperatures. Among these, the ER14505S 3.6V 3/2C high-temperature battery stands out due to its specific design for high-temperature applications, such as in geothermal products. This article focuses on the ER14505S battery, its application in downhole electronic pressure gauges used in geothermal exploration and production, and the safety, discharge performance, and stability features that make it an ideal choice for such harsh environments.
Overview of the ER14505S Battery
The ER14505S is a Li-SOCL2 battery with a nominal voltage of 3.6V. It belongs to the family of lithium primary batteries, which are known for their high energy density, long shelf life, and wide operating temperature range. The ER14505S, in particular, is designed to operate reliably in high-temperature environments, making it suitable for applications where traditional batteries may fail or have reduced performance.
The battery's dimensions are 14mm in diameter and 50.5mm in length, making it a compact and efficient energy source. The "3/2C" rating indicates its ability to deliver high pulse currents, which is crucial for applications that require sudden bursts of power, such as electronic pressure gauges that need to transmit data instantaneously.
Chemistry and Construction
The ER14505S battery uses a lithium anode and a manganese dioxide cathode, separated by an electrolyte. The lithium anode provides the high-energy density, while the manganese dioxide cathode is stable and offers good discharge characteristics. The electrolyte, typically a lithium salt in an organic solvent, allows for the transfer of ions between the anode and cathode during discharge.
The battery's construction includes a stainless steel case and a sealing ring to ensure that it is hermetically sealed. This is crucial for applications in high-temperature environments, as it prevents the ingress of moisture and contaminants that could compromise the battery's performance.
High-Temperature Performance
One of the key features of the ER14505S battery is its ability to operate reliably in high-temperature environments. Geothermal exploration and production often involve downhole instruments that need to operate at temperatures that can exceed 150°C. Traditional batteries, such as alkaline or nickel-cadmium batteries, would fail or have significantly reduced performance in such conditions.
The ER14505S battery, however, is specifically designed to maintain its performance and reliability in high-temperature environments. The battery's materials and construction are carefully chosen to ensure that it can withstand high temperatures without compromising its safety or performance.
Application in Downhole Electronic Pressure Gauges
Downhole electronic pressure gauges are essential instruments in geothermal exploration and production. They are used to measure the pressure in geothermal wells, providing critical data for reservoir analysis, production optimization, and well integrity monitoring.
These gauges need to be reliable and accurate, as incorrect pressure readings can lead to incorrect interpretations and potentially dangerous situations. They also need to be able to operate in harsh environments, including high temperatures and high pressures.
The ER14505S battery is an ideal power source for downhole electronic pressure gauges due to its high-temperature performance, high energy density, and long shelf life. The battery's ability to deliver high pulse currents also ensures that the gauge can transmit data instantaneously, even in environments where power consumption is a concern.
Safety Features
Safety is a critical consideration in any battery application, especially in high-temperature environments. The ER14505S battery is designed with several safety features to ensure that it operates safely and reliably even under extreme conditions.
Hermetic Sealing
As mentioned earlier, the battery is hermetically sealed to prevent the ingress of moisture and contaminants. This ensures that the battery's internal components are protected from the harsh environment, and that the battery maintains its performance and reliability over its lifetime.
Pressure Relief Vent
The battery is equipped with a pressure relief vent that opens if the internal pressure exceeds a safe level. This prevents the battery from rupturing or exploding, even if it is exposed to extreme temperatures or pressures.
Short-Circuit Protection
The battery's design includes short-circuit protection to prevent it from overheating or exploding if it is accidentally short-circuited. This is crucial in downhole applications, where the battery may be exposed to conditions that could lead to accidental short-circuiting.
Excellent Discharge Performance
In addition to its safety features, the ER14505S battery offers excellent discharge performance, making it an ideal choice for downhole electronic pressure gauges.
High Energy Density
The battery's high energy density allows it to provide a large amount of power over its lifetime. This ensures that the gauge can operate reliably for extended periods, even in environments where power consumption is a concern.
Flat Discharge Curve
The battery's discharge curve is relatively flat, meaning that it maintains a consistent voltage output over a wide range of discharge currents. This ensures that the gauge receives a stable power supply, even as the battery discharges.
Low Self-Discharge Rate
The ER14505S battery has a low self-discharge rate, meaning that it loses only a small amount of charge over time when not in use. This ensures that the battery maintains its performance and reliability over long periods of storage, making it an ideal choice for downhole instruments that may not be used frequently.
Stable Features
In addition to its safety and discharge performance, the ER14505S battery offers several stable features that make it an ideal choice for downhole electronic pressure gauges.
Wide Operating Temperature Range
The battery's wide operating temperature range allows it to perform reliably in environments where traditional batteries may fail. This ensures that the gauge can operate accurately and reliably, even in high-temperature environments.
Long Shelf Life
The battery's long shelf life means that it can be stored for extended periods without losing significant charge. This is crucial for downhole instruments that may not be used frequently, as it ensures that the battery is ready for use when needed.
Vibration and Shock Resistance
The battery is designed to be vibration and shock-resistant, making it ideal for downhole applications where it may be exposed to harsh conditions. This ensures that the battery maintains its performance and reliability, even in environments where it is subjected to mechanical stress.
Environmental Considerations
In addition to its technical specifications, the ER14505S battery also offers several environmental benefits that make it an attractive choice for geothermal applications.
Non-Toxic Materials
The battery uses non-toxic materials in its construction, making it an environmentally friendly choice. This is important in geothermal applications, where the battery may be exposed to the environment during drilling or well abandonment.
RoHS Compliance
The ER14505S battery is compliant with the Restriction of Hazardous Substances (RoHS) directive, meaning that it does not contain any of the restricted substances listed in the directive. This ensures that the battery can be used in applications where RoHS compliance is required.
Conclusion
The ER14505S 3.6V 3/2C high-temperature battery is an ideal choice for downhole electronic pressure gauges used in geothermal exploration and production. Its high-temperature performance, high energy density, long shelf life, and stable features make it a reliable and efficient power source for these instruments. The battery's safety features, including hermetic sealing, pressure relief vent, and short-circuit protection, ensure that it operates safely and reliably even under extreme conditions. Additionally, its environmental benefits, such as non-toxic materials and RoHS compliance, make it an attractive choice for geothermal applications.
Technical Specifications of the ER14505S Battery
Below are the technical specifications of the ER14505S battery, which highlight its performance and suitability for downhole electronic pressure gauges:
Nominal Voltage: 3.6V
Diameter: 14mm
Length: 50.5mm
Weight: Approximately 14g
Operating Temperature Range: -40°C to +150°C (depending on specific application and manufacturer)
Pulse Discharge Capability: 3/2C (able to deliver high pulse currents)
Energy Density: High (specific to lithium primary batteries)
Shelf Life: Up to 10 years (depending on storage conditions)
Discharge Curve: Relatively flat, providing consistent voltage output over a wide range of discharge currents
Self-Discharge Rate: Low, meaning that the battery loses only a small amount of charge over time when not in use
Safety Features: Hermetic sealing, pressure relief vent, short-circuit protection
Environmental Benefits: Non-toxic materials, RoHS compliance
