4LR44 battery

　　Temperature Characteristics of Square - shaped Lithium - ion Batteries

　　The temperature characteristics of square - shaped lithium - ion batteries are of great significance as they can influence the battery's performance, lifespan, and safety.

　　At low temperatures, the performance of square - shaped lithium - ion batteries degrades significantly. The viscosity of the electrolyte increases, which slows down the movement of lithium ions. This leads to a higher internal resistance, as mentioned before. As a result, the battery's capacity decreases, and the charging and discharging rates become slower. For example, in cold - climate regions, an electric vehicle equipped with square - shaped lithium - ion batteries may experience a reduced driving range. The battery may also take longer to charge, and the power output during acceleration may be limited.

　　On the other hand, high - temperature conditions also pose challenges. At elevated temperatures, the chemical reactions within the battery occur more rapidly, which can cause over - charging and over - discharging issues if the battery management system is not properly designed. The degradation of the electrode materials and the electrolyte can be accelerated, leading to a shorter lifespan. Moreover, high temperatures can increase the risk of thermal runaway, a dangerous situation where the battery heats up uncontrollably, potentially causing fires or explosions.

　　To mitigate the effects of temperature, battery management systems are often employed. These systems can monitor the battery's temperature and adjust the charging and discharging processes accordingly. For example, they may limit the charging current at low temperatures to prevent damage to the battery. In high - temperature environments, cooling systems can be used to maintain the battery within a safe operating temperature range.

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