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Anhydrous ultralow-temperature wide temperature working electrolyte and preparation method thereof

An ultra-low temperature, wide temperature technology, applied in the field of electrolyte, can solve the problems of poor electrochemical performance and the failure of electrolytic capacitors to work normally, and achieve the effect of good electrochemical performance

Active Publication Date: 2017-05-10
WUXI TAIWEI ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing electrolyte has poor electrochemical performance in extremely cold weather conditions, resulting in the failure of the electrolytic capacitor to work normally

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of anhydrous ultra-low temperature wide temperature working electrolyte according to the present invention, in parts by weight, it comprises:

[0021] (1) 60 parts of γ-butyrolactone;

[0022] (2) 12 parts of o-nitroanisole;

[0023] (3) 0.4 parts of additives;

[0024] (4) 5 parts of glucono delta lactone;

[0025] (5) 14 parts of ammonium succinate;

[0026] (6) 3 parts of passivating agent.

[0027] The additive is VP-04.

[0028] The passivator is XP-03-B.

[0029] A method for preparing an anhydrous ultra-low temperature wide temperature working electrolyte, which comprises the following steps,

[0030] (1) First mix γ-butyrolactone, o-nitroanisole and glucono δ lactone, heat to 100°C, and keep warm for 35 minutes;

[0031] (2) Then add ammonium succinate, heat to 135°C, and keep warm for 28 minutes;

[0032] (3) Finally, add additives and passivators, heat to 165°C, hold for 24 minutes, then cool down to 85°C within 6 minutes, hold for 12 minutes, a...

Embodiment 2

[0034] A kind of anhydrous ultra-low temperature wide temperature working electrolyte according to the present invention, in parts by weight, it comprises:

[0035] (1) 66 parts of γ-butyrolactone;

[0036] (2) 19 parts of o-nitroanisole;

[0037] (3) 0.35 parts of additives;

[0038] (4) 6 parts of glucono delta lactone;

[0039] (5) 11 parts of ammonium succinate;

[0040] (6) 4 parts of passivating agent.

[0041] The additive is VP-04.

[0042] The passivator is XP-03-B.

[0043] A method for preparing an anhydrous ultra-low temperature wide temperature working electrolyte, which comprises the following steps,

[0044] (1) First mix γ-butyrolactone, o-nitroanisole and gluconoδ lactone, heat to 105°C, and keep warm for 45 minutes;

[0045] (2) Then add ammonium succinate, heat to 140°C, and keep warm for 33 minutes;

[0046] (3) Finally, add additives and passivators, heat to 175°C, hold for 28 minutes, then cool down to 88°C within 8 minutes, hold for 13 minutes, a...

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Abstract

The invention relates to anhydrous ultralow-temperature wide temperature working electrolyte which comprises, according to the parts by weight, 55-70 parts of gamma-butyrolactone, 10-20 parts of ortho-nitroanisole, 0.3-0.5 part of additive, 3-8 parts of gluconic acid delta lactone, 10-15 parts of ammonium succinate and 2-8 parts of passivant. The preparation method comprises the steps that firstly the gamma-butyrolactone, the ortho-nitroanisole and the gluconic acid delta lactone are mixed and the system is heated and the heat is preserved; then the ammonium succinate is added and the system is heated and the heat is preserved; and finally the additive and the passivant are added and the system is heated and the heat is preserved, then the temperature decreases to 80-90 DEG C within 5-10min and the heat is preserved, and finally the system is heated to 120-140 DEG C within 20-30min and the heat is preserved and then the system is naturally cooled. The anhydrous ultralow-temperature wide temperature working electrolyte has great electrochemical property.

Description

technical field [0001] The invention belongs to the field of electrolytes, and in particular relates to a capacitor electrolyte and a preparation method thereof. Background technique [0002] Aluminum electrolytic capacitors are one of the basic components of electronic products. The electrolyte is the cathode of aluminum electrolytic capacitors, and its performance has a certain impact on the performance of aluminum electrolytic capacitors. The existing electrolytic solution has poor electrochemical performance under extremely cold weather conditions, which causes the electrolytic capacitor to fail to work normally. Contents of the invention [0003] Purpose of the invention: The purpose of the invention is to overcome the deficiencies in the prior art and provide a water-free ultra-low temperature wide temperature working electrolyte with good electrochemical performance and a preparation method thereof. [0004] Technical solution: In order to solve the above technical...

Claims

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Application Information

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IPC IPC(8): H01G9/035
CPCH01G9/035
Inventor 汤嘉浚钱建中
Owner WUXI TAIWEI ELECTRONICS CO LTD
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