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Title:
HYDROGEN ELIMINATION AGENT AND PREPARATION METHOD THEREFOR, AND ELECTROLYTE FOR ALUMINUM ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2019/024411
Kind Code:
A1
Abstract:
To solve the problems of an existing hydrogen elimination agent for an aluminum electrolytic capacitor of poor solubility property and influence to break-down voltage, provided is a hydrogen elimination agent. The hydrogen elimination agent is at least one of compound A as shown in structural formula I and compound B as shown in structural formula II; the solubility of the hydrogen elimination agent in an electrolyte for an aluminum electrolytic capacitor is 7% or more, and when the volume of addition in the electrolyte is 7%, the hydrogen elimination agent would not be separated out of the electrolyte, and other components in the electrolyte likewise would not be separated out. Addition of the hydrogen elimination agent in the electrolyte has no influence to the electrical conductivity and break-down voltage of the electrolyte, and the gas production rate is low, and thus the hydrogen elimination performance is superior.

Inventors:
ZHENG ZHONGTIAN (CN)
HE TIANQIAN (CN)
Application Number:
PCT/CN2017/119314
Publication Date:
February 07, 2019
Filing Date:
December 28, 2017
Export Citation:
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Assignee:
SHENZHEN CAPCHEM TECHNOLOGY CO LTD (CN)
International Classes:
H01G9/035
Domestic Patent References:
WO1995004053A11995-02-09
Foreign References:
DE2526312A11976-12-30
Other References:
SHEN, WEIWEI ET AL.: "Synthesis of a, beta-Unsaturated Ketal (Acetal", CHEMICAL REAGENTS, vol. 29, no. 5, 31 December 2007 (2007-12-31), pages 305
ZHENG, Z.B. ET AL.: "A Mild and Efficient Method for One-Step alpha-Haloacetalization of Acetophenones Using 1, 3-Dihalo-5, 5-Dimethylhydantoin in Ethylene Glycol", TETRAHEDRON LETTERS, vol. 56, 18 March 2015 (2015-03-18), pages 2219 - 2222, XP055590257
MIRJALILI, B.F. ET AL.: "AL (HS04), 3 as an Efficient Catalyst for Acetalization of Carbonyl Compounds under Heterogeneous or Solvent-Free Conditions", J. BRAZ. CHEM. SOC., vol. 16, no. 4, 20 May 2005 (2005-05-20), pages 877 - 880, XP055590259
MIRJALILI, B.F. ET AL.: "An Efficient Protocol for Acetalization of Carbonyl Compounds Using Zr(HS04)4 at Room Temperature under Solvent-Free Conditions", J. IRAN. CHEM. SOC., vol. 4, no. 3, 30 September 2007 (2007-09-30), pages 340 - 346, XP055590263
SUZUKI, H. ET AL.: "Ozone-Mediated Reaction of Aromatic Acetals and Acylal with Nitrogen Dioxide: a Novel Methodology for the Nuclear Nitration of Acid-sensitive Aromatic Compounds under Neutral Conditions", J. CHEM. SOC. PERKIN TRANS., vol. 1, no. 11, 1 January 1994 (1994-01-01), pages 1367 - 1369, XP009097890
DATABASE CAS [O] 18 February 2014 (2014-02-18), retrieved from STN Database accession no. 1548399-80-9
SHEN, WEIWEI ET AL.: "Synthesis of a, beta-Unsaturated Ketal (Acetal", CHEMICAL REAGENTS, vol. 29, no. 5, 31 December 2007 (2007-12-31)
Attorney, Agent or Firm:
ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
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