Title:
METHOD FOR PREPARING HIGH-SPECIFIC-VOLUME LOW-VOLTAGE ELECTRODE FOIL FOR AUTOMOTIVE ELECTRONICS
Document Type and Number:
WIPO Patent Application WO/2023/236573
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a high-specific-volume low-voltage electrode foil for automotive electronics. The method comprises the following steps: firstly, sequentially performing first-stage formation, second-stage formation, third-stage formation and fourth-stage formation operation on an etching foil, and respectively adjusting the voltage, temperature, time, and the components and proportion of the formation liquid used during performance of single formation; adding an amine treatment solution during the first-stage formation to greatly increase the content of aluminum oxide crystals in a formed oxide film; and then soaking the formed foil in a phosphate solution multiple times to perform a post-treatment operation so as to repair residual defect spots on the formed oxide film. In this way, not only can the water-boiling service life of an electrode foil be effectively prolonged, but a good foundation is also laid for greatly improving the electrical specific volume of an aluminum electrode foil.
Inventors:
WANG JIANZHONG (CN)
CHEN CHEN (CN)
XU ZHONGJUN (CN)
ZHOU HONGYAN (CN)
LIU HUI (CN)
MAO HUIMIN (CN)
HE GUILI (CN)
WANG GUIZHOU (CN)
JIN XUEJUN (CN)
CHEN CHEN (CN)
XU ZHONGJUN (CN)
ZHOU HONGYAN (CN)
LIU HUI (CN)
MAO HUIMIN (CN)
HE GUILI (CN)
WANG GUIZHOU (CN)
JIN XUEJUN (CN)
Application Number:
PCT/CN2023/075328
Publication Date:
December 14, 2023
Filing Date:
February 10, 2023
Export Citation:
Assignee:
NANTONG HAIXING ELECTRONICS LLC (CN)
NANTONG HAIYI ELECTRONICS CO LTD (CN)
NINGXIA HAILI ELECTRONICS CO LTD (CN)
NANTONG HAIYI ELECTRONICS CO LTD (CN)
NINGXIA HAILI ELECTRONICS CO LTD (CN)
International Classes:
C25D11/06; C25D11/12; C25D11/16; C25D11/24; H01G9/045; H01G9/055
Domestic Patent References:
| WO2006098445A1 | 2006-09-21 |
Foreign References:
| CN114703526A | 2022-07-05 | |||
| CN111139508A | 2020-05-12 | |||
| CN108511195A | 2018-09-07 | |||
| CN101093751A | 2007-12-26 | |||
| CN101651049A | 2010-02-17 | |||
| CN105097286A | 2015-11-25 | |||
| CN110760913A | 2020-02-07 | |||
| CN114007726A | 2022-02-01 | |||
| CN114411157A | 2022-04-29 | |||
| CN1967752A | 2007-05-23 | |||
| US20100219079A1 | 2010-09-02 |
Attorney, Agent or Firm:
NANJING ZHENGLIAN INTELLECTUALPROPERTY AGENCY CO., LTD. et al. (CN)
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