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source:Industry News release time:2025-07-07 Hits: Popular:AG11 battery
Polymer batteries, with their high energy density, flexibility, and lightweight characteristics, have found wide applications in various fields such as consumer electronics, electric vehicles, and medical devices. However, to ensure their optimal performance, safety, and longevity, several precautions must be taken during their use.
Handling and Storage
Avoid Physical Damage: The soft packaging of polymer batteries, typically made of aluminum - plastic composite film, is vulnerable to sharp objects. Never use sharp tools like needles or knives near the battery. Keep the working area clean and free of sharp components. When handling the battery, wear gloves to prevent accidental scratches from fingernails. Additionally, do not bend, twist, or drop the battery. Even a minor physical impact can damage the internal structure, leading to potential short - circuits or a decrease in battery performance. For example, in a laboratory setting where batteries are frequently handled for testing, researchers should always use anti - static tweezers and place the batteries on a soft, non - abrasive surface.
Proper Storage Conditions: Store polymer batteries in a cool, dry place. The ideal temperature range for long - term storage is between - 20°C and + 35°C, with a relative humidity of 45 - 75%. High temperatures can accelerate the aging process of the battery, while humidity can cause corrosion of the metal components inside. If the battery is not going to be used for an extended period, it should be charged to 10 - 50% of its capacity. This state helps to prevent over - discharge, which can severely damage the battery. For instance, in a warehouse storing backup power polymer batteries, proper climate control systems should be installed to maintain these ideal storage conditions.
Charging Precautions
Use the Right Charger: Always use a charger specifically designed for polymer batteries. These chargers are calibrated to provide the correct charging voltage and current. The charging current should not exceed the recommended value, usually 1C - 5A for a single - cell battery. Excessive charging current can cause overheating, which may lead to thermal runaway, a dangerous situation where the battery heats up uncontrollably. The charging voltage should not go above 4.23V per cell. Using a non - compliant charger can not only damage the battery but also pose a safety risk. For example, in a household setting, using a counterfeit charger for a smartphone's polymer battery can lead to the battery swelling or even catching fire.
Monitor Charging Temperature: The charging process should occur within a temperature range of 0 - + 45°C. Charging at too low a temperature can slow down the chemical reactions inside the battery, reducing its charging efficiency and capacity over time. Charging at too high a temperature can cause irreversible damage to the battery's electrodes and electrolyte. In some high - performance applications, such as electric vehicle charging stations, temperature - monitoring sensors are installed to ensure that the battery is charged within the appropriate temperature range.
Discharging Precautions
Limit Discharge Current: The discharge current of a single - cell polymer battery should be less than 2C - 5A. High - current discharge can generate excessive heat, which reduces the battery's lifespan and may also cause performance degradation. For example, in a power - hungry device like a high - end gaming laptop, if the polymer battery is discharged at an extremely high current, it may overheat, and the battery's capacity may start to decline rapidly after a few charge - discharge cycles.
Prevent Over - Discharge: Do not allow the battery to discharge below 2.75V per cell. Over - discharge can cause permanent damage to the battery, as it may lead to the formation of lithium dendrites, which can pierce the separator between the electrodes and cause a short - circuit. Some devices are equipped with battery management systems (BMS) that automatically cut off the power when the battery voltage reaches a critical level to prevent over - discharge. However, in devices without such a system, users should be vigilant about the battery level.
Safety Precautions
Never Modify or Disassemble: Under no circumstances should you attempt to modify or disassemble a polymer battery. The battery contains highly reactive chemicals, and any interference with its internal structure can lead to leakage, explosion, or fire. Even if the battery appears to be malfunctioning, it should be disposed of properly rather than being tampered with.
Avoid Exposure to Hazardous Environments: Do not expose the battery to water, fire, or extreme heat. Water can seep into the battery, causing an internal short - circuit. Fire or extreme heat can cause the battery to explode. For example, leaving a polymer - battery - powered device in a hot car during summer or near an open flame is extremely dangerous.
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