Aging method and manufacturing method of aluminum electrolytic capacitor
A technology of aluminum electrolytic capacitor and manufacturing method, applied in capacitor manufacturing, electrolytic capacitors, liquid electrolytic capacitors, etc., can solve the problems of high breakdown rate of aluminum electrolytic capacitors and poor repairing effect of oxide film, so as to improve repairing effect and improve repairing effect. effect, the effect of prolonging the service life
Inactive Publication Date: 2019-05-10
横店集团东磁有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to solve the aging process of the existing existing aluminum electrolytic capacitors, when a direct voltage is applied to the anode foil and the cathode foil, the repair effect of the oxide film on the surface of the foil is relatively poor because the anode foil and the cathode foil have no buffer. Poor, resulting in a high breakdown rate of aluminum electrolytic capacitors to provide a repair effect to improve the oxide film on the surface of the foil, reduce the breakdown rate and leakage current of aluminum electrolytic capacitors, improve the yield and use of aluminum electrolytic capacitors Sophisticated Method of Lifetime for Aluminum Electrolytic Capacitors
Method used
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Embodiment 1
[0035]
[0036]
[0037] 1,000 products were put into production, and 4 were broken down. The pass rate: 99.6%. Record the parameters of 8 products:
[0038] serial number
Embodiment 2
[0040]
[0041] 1,000 products were put into production, and 4 were broken down. The pass rate: 99.6%. Record the parameters of 8 products:
[0042] serial number
Embodiment 3
[0044]
[0045] 1,000 products were put into production, and 5 pieces were broken down. The experienced pass rate: 99.5%. Record the parameters of 8 products:
[0046] serial number
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The invention discloses an aging method and a manufacturing method of an aluminum electrolytic capacitor. According to the scheme, an aging process is divided into at least two aging steps, and in thefirst aging step, the aging voltage is gradually increased instead of being increased to the final voltage, so that a foil has a buffering time, an oxide film on the surface of the foil is graduallyrepaired, the repairing effect of the oxide film on the surface of the foil is further improved, the breakdown rate of the aluminum electrolytic capacitor is reduced, the repairing effect of the oxidefilm on the surface of the foil is improved, the breakdown rate and leakage current of the aluminum electrolytic capacitor are reduced, and the yield and service life of the aluminum electrolytic capacitor are improved.
Description
technical field [0001] The invention relates to the technical field of capacitor manufacturing, in particular to a sophisticated method and a manufacturing method for a high-voltage 450V-630V aluminum electrolytic capacitor. Background technique [0002] Capacitors, as a device to hold charges, are one of the electronic components widely used in electronic equipment, and are widely used in DC blocking, coupling, bypass, filtering, tuning loops, energy conversion, control, etc. in circuits. Among them, aluminum electrolytic capacitors with the advantage of relatively large capacity are popular in electronic equipment. At present, aluminum electrolytic capacitors are widely used in notebook computers, ballasts, automotive electronics and other industries. [0003] At present, with the continuous development of the electronic equipment industry and the increasing demand for use, the requirements for aluminum electrolytic capacitors are also gradually increasing. To meet some r...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01G9/00H01G9/045H01G9/145H01G13/00H01G13/02
Inventor 胡蔚
Owner 横店集团东磁有限公司
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