Title:
PREPARATION METHOD FOR HIGH-SPECIFIC-SURFACE-AREA HIGH-DIELECTRIC SINTERED FOIL
Document Type and Number:
WIPO Patent Application WO/2023/236564
Kind Code:
A1
Abstract:
The present invention relates to a preparation method for a high-specific-surface-area high-dielectric sintered foil, comprising the following steps: executing a mixed grinding operation on aluminum-based powder and a nitrogen-containing organic substance; feeding the ground powder, an organic solvent and an adhesive in proportion into a stirrer; coating an electronic aluminum foil with the mixed slurry, and then executing drying treatment; and executing segmented temperature control sintering operation on a mixed slurry pre-sintered body. In the preparation process, the nitrogen-containing organic substance is decomposed into g-C3N4 due to high temperature, accompanied by a large amount of gas. The g-C3N4 can fully wrap the aluminum-based powder to block a heat conduction path, so that the problem of "overburning" caused by local aggregation of the aluminum-based powder is avoided; the continuous overflow of the gas can enable the aluminum-based powder to always maintain in a high-speed motion state before formal implementation of a sintering process, so that the size and the number of gaps formed between the aluminum-based powder increase, thereby ensuring that the sintered foil has relatively high porosity, dielectric performance and electric capacitance.
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Inventors:
WANG JIANZHONG (CN)
PU YU (CN)
MAO HUIMIN (CN)
CHENG HENGYANG (CN)
LI JIANGHONG (CN)
ZHU WEICHEN (CN)
PU YU (CN)
MAO HUIMIN (CN)
CHENG HENGYANG (CN)
LI JIANGHONG (CN)
ZHU WEICHEN (CN)
Application Number:
PCT/CN2023/074766
Publication Date:
December 14, 2023
Filing Date:
February 07, 2023
Export Citation:
Assignee:
NANTONG HAIXING ELECTRONICS LLC (CN)
NANTONG HAIYI ELECTRONICS CO LTD (CN)
SI CHUAN ZHONGYA TECH COMPANY (CN)
NANTONG HAIYI ELECTRONICS CO LTD (CN)
SI CHUAN ZHONGYA TECH COMPANY (CN)
International Classes:
H01G9/052
Foreign References:
| CN114724858A | 2022-07-08 | |||
| JP2011204729A | 2011-10-13 | |||
| JP2014170862A | 2014-09-18 | |||
| CN110610810A | 2019-12-24 | |||
| JP2002050550A | 2002-02-15 | |||
| CN101580237A | 2009-11-18 | |||
| CN114360922A | 2022-04-15 |
Attorney, Agent or Firm:
NANJING ZHENGLIAN INTELLECTUALPROPERTY AGENCY CO., LTD. (CN)
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