Capacitor working electrolyte for ultra-high temperature LED lamps, and preparation method thereof

Abstract

The invention relates to a capacitor working electrolyte for ultra-high temperature LED lamps, comprising the following components in parts by weight: 65-70 parts of ethylene glycol, 3-5 parts of diethylene glycol, 8-15 parts XP-8, 10-15 parts of ammonium isosebacate, 10-15 parts of ammonium sebacate, 2-8 parts of polyethylene glycol 2000, 0.15-0.25 parts of ammonium hypophosphite, and 1-1.5 partsof p-nitrobenzyl alcohol. A preparation method of the capacitor working electrolyte comprises the steps of: (1) firstly mixing ethylene glycol, diethylene glycol, ammonium isosebacate, XP-8 and ammonium sebacate, heating the mixture to 115 DEG C, and performing heat preservation for 15 minutes; (2) then adding the polyethylene glycol 2000, heating to 135 DEG C, and performing heat preservation for 40 minutes; and (3) finally adding the ammonium hypophosphite, heating to 145 DEG C, performing heat preservation for 120 minutes, cooling to 85 DEG C, adding the p-nitrobenzyl alcohol, performing heat preservation for 13 minutes, finally heating to 145 DEG C, performing heat preservation for 30 minutes, and naturally cooling the product. The capacitor working electrolyte provided by the invention has good electrochemical performance and has a wide working temperature range.

Description

technical field [0001] The invention relates to a capacitor electrolyte and a preparation method thereof, in particular to a capacitor electrolyte for an LED lamp and a preparation method thereof. Background technique [0002] Aluminum electrolytic capacitors are essential components of electronic products. The working electrolyte is the cathode of aluminum electrolytic capacitors, and its performance plays a decisive role in the performance of aluminum electrolytic capacitors. The existing working electrolyte for LED lamps has poor electrochemical performance under extremely high ripple and high temperature conditions, severe heating of the capacitor, and rapid failure, resulting in the failure of the electrolytic capacitor for LED lamps to work normally. Contents of the invention [0003] Purpose of the invention: The purpose of the present invention is to overcome the deficiencies in the prior art and provide a capacitor working electrolyte with good electrochemical pro...

AI Technical Summary

Problems solved by technology

The existing working electrolyte for LED lamps has poor electrochemical performance under extremely high ripple and high temperature conditions, serious capacitor heating, and rapid failure, resulting in the malfunction of electrolytic capacitors for LED lamps.