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　　Storage Methods of Rechargeable Lithium - Batteries

　　Proper storage of rechargeable lithium - batteries is essential to maintain their performance and lifespan. When batteries are not stored correctly, they can experience capacity loss, degradation, and even safety issues.

　　The first key factor in storage is the state of charge. It is recommended to store rechargeable lithium - batteries at a partial charge, typically around 40% - 60% of their full capacity. Storing the battery at a full charge for an extended period can cause the battery to degrade faster due to the increased stress on the electrodes. On the other hand, storing the battery in a fully discharged state can lead to over - discharge - related problems, as mentioned earlier. To achieve the optimal storage charge level, you can use a charger with a storage - mode function, which automatically stops charging when the battery reaches the appropriate level.

　　Temperature is another crucial factor in battery storage. Lithium - ion batteries perform best when stored in a cool and dry environment. The ideal storage temperature range is typically between 0°C and 25°C. High temperatures can accelerate the chemical reactions within the battery, leading to capacity loss and degradation. In extreme cases, high - temperature storage can also pose a safety risk, as it can increase the likelihood of thermal runaway. If you need to store the battery in a warm environment, it is advisable to use a cooling device or a temperature - controlled storage unit.

　　Humidity is also a concern. Moisture can penetrate the battery's casing and cause corrosion of the internal components. This can lead to a loss of performance and potentially a short - circuit. To prevent this, store the batteries in a dry place. You can also use desiccants, such as silica gel packets, to absorb any moisture in the storage area.

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