Preparation and application of electrolyte for ultra-low temperature aluminum electrolytic capacitors
The preparation of electrolytes for ultra-low temperature aluminum electrolytic capacitors,ai-ming for a lower operational limit of-55 ℃.By analyzing the freezing points of binary mixed solvents and selecting appropriate solutes and additives,orthogonal experiments were conducted to optimize the preparation process.The resulting electrolyte has a freezing point below-55 ℃ and a flash voltage of ≥496 V.When applied to a 400 V,10 μF aluminum electrolytic capacitor,the electrolyte was tested for low-temperature characteristics,high-temperature load,and high-temperature durability.The results indi-cate that the capacitor using this electrolyte can operate for at least 5 000 h within the temperature range of-55 ℃ to 105 ℃.
aluminum electrolytic capacitorselectrolyteultra-low temperature
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