Hydroxyapatite super-long nanowire-based high-temperature-resistant battery diaphragm and application thereof

A hydroxyapatite and the obtained hydroxyapatite technology are applied in nanotechnology, nanotechnology, battery pack parts and other directions, which can solve the problems of low porosity, poor electrolyte wettability, and low thermal and temperature stability, and achieve resistance to Good flammability, good wettability, and the effect of improving performance

Active Publication Date: 2018-01-09
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF2 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of existing polyolefin battery separators such as low porosity, poor wettability to electrolyte, and low heat-temperature stability, the purpose of the present invention is to provide a membrane with better electrolyte infiltration and adsorption performance, uniform pore distribution, Faster ion transmission and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydroxyapatite super-long nanowire-based high-temperature-resistant battery diaphragm and application thereof
  • Hydroxyapatite super-long nanowire-based high-temperature-resistant battery diaphragm and application thereof
  • Hydroxyapatite super-long nanowire-based high-temperature-resistant battery diaphragm and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028]The hydroxyapatite ultra-long nanowires of the present invention can be prepared by solvothermal method, hydrothermal method or any suitable method, and can be prepared by referring to published patents and literature reports, for example: Zhu Yingjie, Lu Bingqiang , Feng Chen, High flexibility, high temperature and non-combustible hydroxyapatite paper and its preparation method, patent number ZL201310687363.2; Yong-Gang Zhang, Ying-Jie Zhu Feng Chen, Jin Wu, Materials Letters, 144, 135-137 (2015 ); Ying-Ying Jiang, Ying-Jie Zhu, Feng Chen, Jin Wu, Ceramics International, 41, 6098-6102 (2015); Heng Li, Ying-Jie Zhu, Ying-Ying Jiang, Ya-Dong Yu, Feng Chen, Li-Ying Dong, Jin Wu, ChemNanoMat, 3, 259-268 (2017). The solvothermal method includes: (1) mixing fatty acid and alcohol, adding water-soluble calcium salt aqueous solution and strong alkali aqueous solution under stirring to form fatty acid calcium precursor, and the fatty acid is a medium-chain or long-chain fatty ac...

Embodiment 1

[0036] At room temperature, take 10 g of hydroxyapatite superlong nanowire slurry with a concentration of 3 mg / g and disperse it in 40 mL of deionized water, add 0.6 g of a plant fiber aqueous suspension with a concentration of 5‰, and stir for 30 minutes. It is placed on a sand core funnel with a diameter of 45 mm for suction filtration, and after separation and drying, a piece of hydroxyapatite ultra-long nanowire-based high-temperature-resistant battery separator with a diameter of 45 mm and a thickness of about 49 microns is obtained.

Embodiment 2

[0038] At room temperature, disperse 200 g of hydroxyapatite ultra-long nanowire slurry with a concentration of 3 mg / g in 1200 mL of deionized water, stir evenly, then add 18 g of a plant fiber aqueous suspension with a concentration of 5‰, and continue stirring for 30 minutes. Put it on a 20 cm diameter slicer for suction filtration, separation, and dry to obtain a hydroxyapatite ultralong nanowire-based composite battery separator with a diameter of 20 cm and a thickness of about 60 microns. figure 1 (c) and (d) are digital photos of the hydroxyapatite ultra-long nanowire-based composite battery separator prepared in this example before and after burning on the flame of an alcohol lamp. It can be seen that the hydroxyapatite ultra-long nanowire-based High temperature resistant battery separator has excellent high temperature resistance and flame retardancy.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a hydroxyapatite super-long nanowire-based high-temperature-resistant battery diaphragm and an application thereof. The hydroxyapatite super-long nanowire-based high-temperature-resistant battery diaphragm comprises 0.1-100wt% of hydroxyapatite super-long nanowire, 0-30wt% of inorganic additive and 0-50wt% of fiber additive, preferably, 1-99wt% of hydroxyapatite super-longnanowire, 0-30wt% of inorganic additive and 1-50wt% of fiber additive. By solving the technical problems, the high-temperature resistance and flame retardancy of the battery diaphragm is enhanced, the electrolyte wettability and absorptivity of the battery diaphragm is improved, and the performance and the safety of the battery are further reinforced.

Description

technical field [0001] The invention relates to a hydroxyapatite ultra-long nanowire-based high-temperature-resistant battery diaphragm and an application thereof, belonging to the field of battery material preparation. Background technique [0002] Lithium batteries (including lithium ion batteries and lithium metal batteries) and sodium batteries (including sodium ion batteries and sodium metal batteries) have many advantages such as high energy density, high power density and long cycle life, so they are used in portable electronic devices, new power batteries It has been widely used in fields such as energy storage batteries. The battery is mainly composed of four parts: positive electrode material, negative electrode material, separator and electrolyte, and the cost of the separator as a key component inside the battery accounts for about 1 / 5 of the total cost of the battery. In the battery, the separator mainly has the function of preventing the direct contact of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01M2/14H01M2/16B82Y30/00H01M50/403H01M50/431H01M50/44
CPCY02E60/10
Inventor 朱英杰李恒吴进董丽颖
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap