钠电池存放多久需要补电？

How often does Sodium-ion Battery need to be recharged when stored?    

钠离子电池存放补电频率，需根据存放环境、存放时长、电池初始电量来确定，核心是避免电池长期亏电存放，保障电池使用寿命。首先，短期存放（1个月以内），若电池初始电量在50%以上，存放环境为阴凉干燥的室内常温环境，无需补电，存放结束后可直接使用；其次，中期存放（1-3个月），若电池初始电量在50%-70%，存放环境适宜，无需补电，若初始电量低于30%，需在存放1个月左右补电至50%以上；第三，长期存放（3个月以上），无论初始电量多少，都需每3-6个月进行一次补电，将电池电量充至50%-70%，避免电池长期亏电导致容量衰减、性能下降；第四，极端环境存放，如高温、严寒、潮湿环境，需缩短补电间隔，每2-3个月补电一次，避免电池在极端环境下亏电损坏。需要注意的是，补电时需使用适配的专用充电器，在阴凉干燥的环境中进行，充满后及时断电，避免长期浮充。

The recharging frequency of Sodium-ion Battery during storage depends on the storage environment, storage duration, and initial power of the battery. The core is to avoid long-term power loss storage of the battery and ensure the service life of the battery. First of all, for short-term storage (within 1 month), if the initial power of the battery is more than 50% and the storage environment is a cool and dry indoor normal temperature environment, there is no need to recharge, and it can be used directly after the storage period; secondly, for medium-term storage (1-3 months), if the initial power of the battery is 50%-70% and the storage environment is suitable, there is no need to recharge. If the initial power is lower than 30%, it needs to be recharged to more than 50% after about 1 month of storage; thirdly, for long-term storage (more than 3 months), no matter how much the initial power is, it needs to be recharged every 3-6 months to charge the battery power to 50%-70%, to avoid the capacity attenuation and performance decline caused by long-term power loss of the battery; fourthly, for storage in extreme environments, such as high temperature, severe cold, humid environments, the recharging interval needs to be shortened, and recharged every 2-3 months to avoid the battery damage caused by power loss in extreme environments. It should be noted that when recharging, a suitable special charger must be used, and the charging should be carried out in a cool and dry environment. The power should be turned off in time after the battery is fully charged, and long-term floating charge should be avoided.