Title:
REAMING ETCHING SOLUTION, ETCHING PROCESS AND ELECTRODE FOIL
Document Type and Number:
WIPO Patent Application WO/2021/081882
Kind Code:
A1
Abstract:
Disclosed are a reaming etching solution, an etching process and an electrode foil prepared by the etching process in the technical field of electrode materials for capacitors. The reaming etching solution contains a gallium-based liquid metal nanoparticle dispersion, which is obtained by dispersing a gallium-based liquid metal in a polymer solution of a polystyrene sulfonic acid and sodium polystyrenesulfonate, wherein the mass fraction of the gallium-based liquid metal is 0.3%-1.5%. The electrode foil prepared by the etching process for reaming a hole with a reaming etching solution has an increased hole depth, reduced branch holes or small holes, a good hole consistency, and higher electrostatic capacitance and anti-bending strength.
Inventors:
YU YINGFENG (CN)
HE FENGRONG (CN)
DENG LISONG (CN)
ZHU RONGGUI (CN)
XIANG YUNGANG (CN)
WEN YIFAN (CN)
HE FENGRONG (CN)
DENG LISONG (CN)
ZHU RONGGUI (CN)
XIANG YUNGANG (CN)
WEN YIFAN (CN)
Application Number:
PCT/CN2019/114664
Publication Date:
May 06, 2021
Filing Date:
October 31, 2019
Export Citation:
Assignee:
DONGGUAN HEC TECH R&D CO LTD (CN)
RUYUAN YAOZUZHIZHIXIAN DONGYANGGUANG FORMED FOIL CO LTD (CN)
RUYUAN YAOZUZHIZHIXIAN DONGYANGGUANG FORMED FOIL CO LTD (CN)
International Classes:
H01G9/055
Foreign References:
| CN103280329A | 2013-09-04 | |||
| CN110289171A | 2019-09-27 | |||
| CN101210341A | 2008-07-02 | |||
| US20170069430A1 | 2017-03-09 |
Other References:
HE FENGRONG ,YU KAI ,ZHANG XIA ,XIANG YUNGANG ,XIAO YUANLONG: "Effect of Cu2+ ion on Aluminum Foil for High Voltage DC Corrosion in Reaming Fluid", ELECTRONIC COMPONENTS AND MATERIALS, vol. 38, no. 9, 30 September 2019 (2019-09-30), pages 60 - 70+76, XP055810035, ISSN: 1001-2028, DOI: 10.14106/j.cnki.1001-2028.2019.09.010
WANG ZHISHEN, HE YEDONG: "Mechanism of inhibitor on electrochemical enlarging the diameter of tunnels on Al foil for high voltage anode", ELECTRONIC COMPONENTS AND MATERIALS, vol. 29, no. 1, 31 January 2010 (2010-01-31), pages 48 - 51, XP055810042, ISSN: 1001-2028, DOI: 10.3969/j.issn.1001-2028.2010.01.015
WANG ZHISHEN, HE YEDONG: "Mechanism of inhibitor on electrochemical enlarging the diameter of tunnels on Al foil for high voltage anode", ELECTRONIC COMPONENTS AND MATERIALS, vol. 29, no. 1, 31 January 2010 (2010-01-31), pages 48 - 51, XP055810042, ISSN: 1001-2028, DOI: 10.3969/j.issn.1001-2028.2010.01.015
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