Title:
ELECTROLYTE FOR HIGH-VOLTAGE ALUMINUM ELECTROLYTIC CAPACITOR AND HIGH-VOLTAGE ALUMINUM ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2024/001461
Kind Code:
A1
Abstract:
In order to solve problems that an existing aluminum electrolytic capacitor is prone to corrosion failure under a high voltage and has short service life, the present application provides an electrolyte for a high-voltage aluminum electrolytic capacitor and a high-voltage aluminum electrolytic capacitor. The electrolyte comprises a main solute B, an anti-corrosion material A and a solvent, and the electrolyte meets the following relational expressions: 0.1≤103×(σ×m×p)/(r×η)≤1.5，1％≤m≤5％, and 80mPa·s≤η≤400mPa·s. The prepared electrolyte has relatively high conductivity and breakdown voltage, so that failure phenomena of breakdown, valve opening, liquid leakage, corrosion, etc. of a capacitor can be avoided. The prepared aluminum electrolytic capacitor can resist high voltages of 500 V or above, has high conductivity, high voltage resistance and good corrosion resistance properties, and the service life reaches an effect of 5000 H at 105 ℃.
Inventors:
XUAN YVHAN (CN)
ZHONG LING (CN)
HUANG LIQING (CN)
ZHONG LING (CN)
HUANG LIQING (CN)
Application Number:
PCT/CN2023/089978
Publication Date:
January 04, 2024
Filing Date:
April 23, 2023
Export Citation:
Assignee:
SHENZHEN CAPCHEM TECHNOLOGY CO LTD (CN)
International Classes:
H01G9/035; H01G9/145
Foreign References:
| CN115172056A | 2022-10-11 | |||
| CN105244165A | 2016-01-13 | |||
| CN1529892A | 2004-09-15 | |||
| CN1950970A | 2007-04-18 | |||
| JP2003031443A | 2003-01-31 |
Attorney, Agent or Firm:
SHENZHEN ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
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