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Capacitor working electrolyte used for 8000V lightning stroke resistance, and preparation method thereof

An anti-lightning strike and electrolyte technology, applied in capacitors, electrolytic capacitors, circuits, etc., can solve problems such as capacitor heating and blasting, breakdown failure of electrolytic capacitors, and large amounts of gas, and achieve strong lightning strike resistance and good electrochemical performance.

Inactive Publication Date: 2019-11-05
WUXI TAIWEI ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing ordinary working electrolyte, under the action of a lightning strike above 8000V, the capacitor will heat up and explode, and a large amount of gas will be generated, causing the electrolytic capacitor to break down and fail to work normally.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of 8000V anti-lightning stroke of the present invention uses capacitor working electrolyte, by weight, it comprises,

[0021] (1) 67 parts of ethylene glycol;

[0022] (2) 18 parts of ammonium isosebacate;

[0023] (3) 2.2 parts of ammonium pentaborate;

[0024] (4) 1-6DDA 2.1 copies;

[0025] (5) 0.9 parts of m-dinitrobenzene;

[0026] (6) 0.4 copies of PVA-1179;

[0027] (7) 0.15 parts of tributyl hypophosphite.

[0028] A kind of preparation method of 8000V anti-lightning stroke capacitor working electrolyte, it comprises the following steps,

[0029] (1) First mix ethylene glycol, ammonium pentaborate, ammonium isosebacate, and 1-6DDA, heat to 135°C, keep warm for 25 minutes and keep stirring;

[0030] (2) Then add tributyl hypophosphite, heat to 145°C, keep warm for 10 minutes, cool to 70°C and keep for 210 minutes;

[0031] (3) Finally, add PVA-1179 and m-dinitrobenzene, heat to 85°C, keep warm for 60 minutes, and let it cool naturally.

Embodiment 2

[0033] A kind of 8000V anti-lightning stroke of the present invention uses capacitor working electrolyte, by weight, it comprises,

[0034] (1) 72 parts of ethylene glycol;

[0035] (2) 21 parts of ammonium isosebacate;

[0036] (3) 2.1 parts of ammonium pentaborate;

[0037] (4) 1-6DDA 2.4 copies;

[0038] (5) 0.7 parts of m-dinitrobenzene;

[0039] (6) 0.5 parts of PVA-1179;

[0040] (7) 0.13 parts of tributyl hypophosphite.

[0041] A kind of preparation method of 8000V anti-lightning stroke capacitor working electrolyte, it comprises the following steps,

[0042] (1) First mix ethylene glycol, ammonium pentaborate, ammonium isosebacate, and 1-6DDA, heat to 135°C, keep warm for 25 minutes and keep stirring;

[0043] (2) Then add tributyl hypophosphite, heat to 145°C, keep warm for 10 minutes, cool to 70°C and keep for 210 minutes;

[0044] (3) Finally, add PVA-1179 and m-dinitrobenzene, heat to 85°C, keep warm for 60 minutes, and let it cool naturally.

[0045] Thro...

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PUM

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Abstract

The invention relates to a capacitor working electrolyte used for 8000V lightning stroke resistance, and a preparation method thereof. The capacitor working electrolyte comprises the following ingredients in parts by weight: 65-75 parts of ethylene glycol, 15-23 parts of iso-ammonium sebate, 2-2.5 parts of ammonium pentaborate, 2-2.5 parts of 1-6DDA (1-6 Ammonium dodecanedioate), 0.5-1 part of m-dinitrobenzene, 0.3-0.6 part of PVA(polyvinyl alcohol)-1179 and 0.1-0.2 part of tributyl hypophosphite. The preparation method comprises the following steps that: (1) firstly, mixing the ethylene glycol, the ammonium pentaborate, the iso-ammonium sebate and the 1-DDA, heating to 135DEG C, keeping the temperature for 25 minutes, and continuously stirring; (2) then, adding the tributyl hypophosphite,heating to 145DEG C, keeping the temperature for 10min, cooling to 70DEG C, and keeping for 210 minutes; and (3) finally, adding the PVA-1179 and the m-dinitrobenzene, heating to 85DEG C, and naturally cooling. The capacitor working electrolyte has the advantages of good electrochemical performance and high lightning stroke resistance.

Description

technical field [0001] The invention relates to a capacitor electrolyte and a preparation method thereof, in particular to a capacitor electrolyte for lightning strike resistance and a preparation method thereof. Background technique [0002] Aluminum electrolytic capacitors are absolutely important electronic components of electrical products. The working electrolyte is the actual cathode of aluminum electrolytic capacitors, and its performance plays a decisive role in the performance of aluminum electrolytic capacitors. The existing ordinary working electrolyte, under the action of a lightning strike above 8000V, the capacitor will heat up and explode, and a large amount of gas will be generated, causing the electrolytic capacitor to break down and fail to work normally. Contents of the invention [0003] Purpose of the invention: the purpose of the present invention is in order to overcome the deficiencies in the prior art, provide a kind of having good electrochemical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/035
CPCH01G9/035
Inventor 钱建中
Owner WUXI TAIWEI ELECTRONICS CO LTD
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