What is the structural design of the downhole high temperature lithium battery? The strong casing, like a thick layer of armour for the battery, is usually made of particularly strong materials that can withstand high temperatures and are not afraid of corrosion, such as special metals or very strong plastics, to protect the inside of the battery from being broken…

What is the role of energy density in downhole high temperature lithium batteries? High energy density means more electricity can be stored in a battery of the same size and weight. This makes it possible to power equipment with smaller and lighter batteries that are easier to carry and install for downhole work. With high energy density, the battery can…

How does a downhole high-temperature lithium battery in a well resist electromagnetic interference? Putting a metal protective suit on a battery is like putting a protective suit on a person by adding a layer of something metal on the outside of the battery, such as a metal foil or metal mesh. This layer of metal can shut out the electromagnetic…

How do you understand the chemical stability of high temperature lithium batteries downhole? The stabilisation of the electrolyte is like the transport channel in a battery. In the underground high temperature environment, ordinary electrolyte may decompose or deteriorate. The electrolyte used in underground high temperature lithium batteries can withstand high temperatures and is not easy to decompose, which ensures that…

What is the maximum temperature that lithium batteries can withstand in downhole applications? Typically, the maximum temperature that a downhole high temperature lithium battery can withstand is between 80 – 150 degrees Celsius. However, some high-performance specialised downhole lithium batteries can withstand temperatures in excess of 150 degrees Celsius, reaching 180 degrees Celsius and beyond. The maximum temperature that can…

What causes lithium batteries to overheat in downhole applications? Downhole equipment may have high power requirements, resulting in lithium batteries being discharged at high currents for long periods of time, which generates a lot of heat.The battery may be short-circuited internally or externally due to wiring aging, damage or external collision, etc., instantly generating a large amount of heat. After…

How do you cool a hot lithium battery in a downhole application? Install metal heat sinks on the battery surface to increase the heat dissipation area and improve the heat dissipation efficiency. Reasonable arrangement of the battery position in the equipment, avoiding too much concentration of the battery, in order to improve the heat distribution and heat dissipation conditions The…

What are the effects of extreme environments on lithium batteries in downhole applications? Accelerate the chemical reaction inside the battery, leading to accelerated capacity degradation and shortened service life. At the same time, high temperature may increase the internal resistance of the battery, reduce the discharge efficiency, and even cause thermal runaway, resulting in potential safety hazards. Higher humidity downhole…

What is the temperature resistance of downhole batteries in application tools? Downhole environments have extremely high temperatures, typically between -40°C and 150°C. The batteries used in these applications must be able to operate reliably over such a wide range. The batteries used in these applications must be able to operate reliably over such a wide temperature range. Special manufacturing processes…

What characterisation problems are associated with downhole battery lag? Performance Degradation Over time, lithium batteries can suffer from a decrease in their overall performance. This includes reduced capacity, meaning the battery holds less charge and thus powers devices for shorter periods. This degradation is typically due to chemical changes within the battery cells as they age. Temperature Sensitivity High temperatures…