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Capacitor core package and preparation method thereof, and solid aluminum electrolytic capacitor

A technology of capacitors and core packs, which is applied in the manufacture of solid electrolytic capacitors, electrolytic capacitors, and electrolytic capacitors. It can solve problems such as complex manufacturing processes and energy consumption reduction, and achieve the effects of simple operation, low loss rate, and energy saving.

Active Publication Date: 2018-08-03
深圳市金富康电子有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this preparation method not only has a complicated process, but generally requires a higher temperature, usually above 200°C, which is not conducive to reducing energy consumption.

Method used

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  • Capacitor core package and preparation method thereof, and solid aluminum electrolytic capacitor

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preparation example Construction

[0031] The invention provides a method for preparing a capacitor core pack, comprising the following steps:

[0032] (1) The anodized aluminum foil, the cathode aluminum foil and the diaphragm material are laminated and then wound into a core package;

[0033] The separator material is electrolytic paper or electrolytic paper and non-woven fabric;

[0034] Among them, the anodized aluminum foil, the cathode aluminum foil and the electrolytic paper are stacked so that the electrolytic paper is sandwiched between the anodized aluminum foil and the cathode aluminum foil, and it is set in a three-layer sandwich state;

[0035] When the anodized aluminum foil, cathode aluminum foil, electrolytic paper and non-woven fabric are laminated, the unfolded state of the core pack is anodized anodized foil, non-woven fabric, cathode foil and electrolytic paper from top to bottom;

[0036] (2) Carrying out the repair treatment of the positive electrode oxide film by putting the core bag in ...

Embodiment 1

[0059] Anodized aluminum foil, cathode foil, 1 layer of PET non-woven fabric and a layer of electrolytic paper are rolled into a capacitor core package through a double-slot nail-roller, which is a special production equipment for aluminum electrolytic capacitors. The unfolded state of the core package from top to bottom is as follows: Anodized into foil, non-woven fabric, cathode foil and electrolytic paper. When the core is wrapped, the non-woven fabric and electrolytic paper are used as the core, the length of the cathode foil is greater than the length of the anodized aluminum foil, and the total length of the non-woven fabric and electrolytic paper is longer than the length of the overlapping part of the anodized aluminum foil and the cathode aluminum foil. Use a multimeter to spot check 1000 core packs, and there is no short circuit.

[0060] Put the wound core pack into 3wt% ammonium adipate aqueous solution, apply a direct current voltage of 2A, and the temperature of ...

Embodiment 2

[0067] Anodized aluminum foil, cathode foil, 1 layer of PET non-woven fabric and a layer of electrolytic paper are rolled into a capacitor core package through a double-slot nail-roller, which is a special production equipment for aluminum electrolytic capacitors. The unfolded state of the core package from top to bottom is as follows: Anodized into foil, non-woven fabric, cathode foil and electrolytic paper. When the core is wrapped, the non-woven fabric and electrolytic paper are used as the core, the length of the cathode foil is greater than the length of the anodized aluminum foil, and the total length of the non-woven fabric and electrolytic paper is longer than the length of the overlapping part of the anodized aluminum foil and the cathode aluminum foil. Use a multimeter to spot check 1000 core packs, and there is no short circuit.

[0068] Put the wound core pack into a 3wt% ammonium adipate aqueous solution, apply a DC voltage and current of 2A, and form a solution a...

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Abstract

The invention provides a capacitor core cladding, a preparation method thereof, and a solid aluminum electrolytic capacitor. The preparation method of the capacitor core cladding provided by the invention is simple in operation, does not need to carry out high-temperature carbonization and saves energy. In addition, the capacitor obtained by the invention has the characteristics of high capacitance, low loss rate and low ESR value. According to the results of an embodiment, the capacitance of the capacitor obtained in this embodiment is 316 to 320 UF, which is much higher than the capacitance of 160 to 165 UF in a comparative embodiment; the loss rate is only 1.0 to 1.2%, much lower than 2.2 to 2.6% in the comparative embodiment; the ESR value is 10 to 11 milliohms, far lower than 16 to 18 milliohms in the comparative embodiment; and the 1-minute leakage current is 15 to 30UA.

Description

technical field [0001] The invention relates to the technical field of solid capacitors, in particular to a capacitor core pack, a preparation method thereof, and a solid aluminum electrolytic capacitor. Background technique [0002] A solid aluminum electrolytic capacitor is a capacitor that uses a solid conductive polymer as a capacitor dielectric material. Solid aluminum electrolytic capacitors are widely used due to their more stable electrical properties than liquid aluminum electrolytic capacitors, lower equivalent series resistance (ESR), high resistance to ripple current, excellent high and low temperature characteristics, and long life. [0003] The method for manufacturing solid aluminum electrolytic capacitors in the prior art mainly uses electrolytic paper as a diaphragm, and then performs high-temperature carbonization treatment on the core package. However, this preparation method not only has a complicated process, but generally requires a relatively high tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/02H01G9/15
CPCH01G9/0029H01G9/02H01G9/151
Inventor 王兴久
Owner 深圳市金富康电子有限公司
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