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Temperature has a significant impact on internal resistance: at 25 ℃, when the lithium-ion battery is stored for 32 days, the change in internal resistance is 0.57mQ; At 50 ℃, when the battery is stored for one month, the internal resistance increases by 2.64m; When the ambient temperature reaches 75C, the battery resistance changes rapidly. After the same number of days, the new increase in resistance is 8.18m, which is 14 times the increase at 25 ℃.
3) Discharge characteristics
The discharge characteristics of lithium-ion batteries show a downward trend after long-term storage. The low-temperature performance of batteries stored for a long time has significantly decreased.
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