Title:
ORGANIC/INORGANIC FERROELECTRIC COMPOSITE MATERIAL HAVING ULTRAHIGH DIELECTRIC CONSTANT, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/232961
Kind Code:
A1
Abstract:
The present invention relates to an organic/inorganic ferroelectric composite material having an ultrahigh dielectric constant, a preparation method therefor, and use thereof. A novel organic/inorganic ferroelectric composite material is formed by filling, in a matrix composite formed by organic ferroelectric macromolecules and ferroelectric high-molecular polymers, inorganic powder having a ferroelectric property. At room temperature, said material has a relative dielectric constant of greater than 105 at a power frequency. Said preparation method has simple operation, low cost, and is easy for large-scale industrial production. The novel ultrahigh dielectric material can be used for preparing a high-capacity all-solid novel capacitor material suitable for surface mounting. Said material has multiple types of interfacial charge polarization, which breaks through the pre-percolation theory of the currently available dielectric theory, and provides a new approach for material application and further research.
Inventors:
QI JIANQUAN (CN)
CHANG JUANXIONG (CN)
MA ZHENWEI (CN)
HAN XIUMEI (CN)
WANG JINKUAN (CN)
WANG TINGHUI (CN)
JIANG MAOCHENG (CN)
CHENG JING (CN)
ZHOU JIXIANG (CN)
LI MENGYING (CN)
WANG JIA (CN)
SUN JINYUE (CN)
WU JINGJING (CN)
ZHANG JUN (CN)
SUN QINGWEN (CN)
LI YAN (CN)
CHANG JUANXIONG (CN)
MA ZHENWEI (CN)
HAN XIUMEI (CN)
WANG JINKUAN (CN)
WANG TINGHUI (CN)
JIANG MAOCHENG (CN)
CHENG JING (CN)
ZHOU JIXIANG (CN)
LI MENGYING (CN)
WANG JIA (CN)
SUN JINYUE (CN)
WU JINGJING (CN)
ZHANG JUN (CN)
SUN QINGWEN (CN)
LI YAN (CN)
Application Number:
PCT/CN2019/111756
Publication Date:
November 26, 2020
Filing Date:
October 17, 2019
Export Citation:
Assignee:
UNIV NORTHEASTERN (CN)
International Classes:
H01G9/025; H01G9/028; H01G9/032
Foreign References:
| CN110164694A | 2019-08-23 | |||
| US8871850B2 | 2014-10-28 |
Other References:
WENLONG YANG ET AL.: "A novel all-organic DIPAB/PVDF composite film with high dielectric permittivity", JOURNAL OF MATERIALS SCIENCE: MATERIALS IN ELECTRONICS, vol. 28, no. 13, 14 March 2017 (2017-03-14), XP036248197, DOI: 20200221094618Y
Attorney, Agent or Firm:
BEIJING EASY JOY SOON IP AGENT LTD. (CN)
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