Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Resin, resin composition, nonwoven fabric using same, fiber product, separator, secondary battery, and method for producing electric double layer capacitor and nonwoven fabric

A technology of resin composition and non-woven fabric, applied in the direction of single-component synthetic polymer rayon, dry spinning method, fiber treatment, etc., can solve the problems of separator shrinkage, melting, electrode short circuit, etc.

Active Publication Date: 2020-02-14
TORAY IND INC
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the temperature of the battery becomes too high, the separator shrinks or melts, which may cause a short circuit between the electrodes

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
  • Resin, resin composition, nonwoven fabric using same, fiber product, separator, secondary battery, and method for producing electric double layer capacitor and nonwoven fabric
  • Resin, resin composition, nonwoven fabric using same, fiber product, separator, secondary battery, and method for producing electric double layer capacitor and nonwoven fabric
  • Resin, resin composition, nonwoven fabric using same, fiber product, separator, secondary battery, and method for producing electric double layer capacitor and nonwoven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0101] In order to demonstrate this invention in more detail, although an Example is used and demonstrated more concretely, this invention is not interpreted as being limited by these Examples. In addition, evaluation of resin etc. was performed by the following method.

[0102] (1) Production of non-woven fabrics

[0103]The resin solution was sprayed at 40 μL / min with an electrospinning device (manufactured by Kato-Tec Co., Ltd., NEU nanofiber electrospinning unit), and the resin solution was sprayed on an aluminum foil with a mass per unit area of ​​5 g / m 2 Form a nonwoven fabric. The nozzle used an 18G (0.94 mm inner diameter) unbeveled needle with a distance of 15 cm to the collection device. When setting the voltage, the front part of the nozzle was visually confirmed for each sample, and the resin solution was stably maintained in a conical (Taylor cone) shape at the front part of the nozzle. The obtained nonwoven fabric on the aluminum foil was vacuum-dried at 150° ...

Synthetic example 1

[0115] Synthesis Example 1: Synthesis of Resin A-1

[0116] In a dry nitrogen stream, N,N-dimethylacetamide (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., product name "N,N-dimethylacetamide (super-dehydrated), hereinafter referred to as DMAc" Dissolve 10.27 g (0.095 mol) of p-phenylenediamine (manufactured by Fuji Film Wako Pure Chemical Industries, Ltd., hereinafter referred to as PDA) in 82.13 g. Add isophorone diisocyanate (Tokyo Chemical Industry ( Co., Ltd., product name "Isophorone Diisocyanate (mixture of isomers)", hereinafter referred to as IPDI) 22.23g (0.10mol), the flask was immersed in an oil bath at 60°C and stirred for 4 hours. Then, hard 2.70 g (0.01 mol) of tallow amine (manufactured by Tokyo Chemical Industry Co., Ltd., product name "Stearylamine") was stirred in an oil bath at 60° C. for 2 hours to obtain a 30% by mass DMAc solution of resin A-1. Resin A- 1 Containing 50 mol% or more (substantially 100 mol%) of the structure represented by ...

Synthetic example 2

[0117] Synthesis example 2: the synthesis of resin A-2

[0118] In a dry nitrogen stream, in a flask, 13.19 g of DMAc was dissolved in 13.19 g of 3,3'-diaminodiphenylsulfone (manufactured by Tokyo Chemical Industry Co., Ltd., product name "Bis(3-aminophenyl) Sulfone", hereinafter referred to as 3,3'-DDS) 23.59 g (0.095 mol). After adding 22.23 g (0.10 mol) of IPDI little by little thereto, the flask was immersed in a 60° C. oil bath and stirred for 4 hours. Then, 2.70 g (0.01 mol) of stearylamine was put into the flask, and it stirred in the oil bath of 60 degreeC for 2 hours, and obtained the 30 mass % DMAc solution of resin A-2. Resin A-2 contains more than 50 mol% (substantially 100 mol%) of the structure represented by the general formula (1) in the entire structure, and the end of the main chain has an alkyl group with 18 carbon atoms, and X in the general formula (1) is The structure represented by -NH-, R 1 is a cyclic aliphatic hydrocarbon group, R 2 It corresponds...

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

No PUM Login to View More

Abstract

The present invention addresses the problem of providing a resin with which a heat resistant nonwoven fabric having a fine fiber diameter can be produced by an electrospinning method. The purpose of the present invention is to provide a resin having a structure represented by at least one selected from the group consisting of general formulae (1)-(3), and containing, at the terminal of the main chain, at least one selected from among an alkyl group having 10 or more carbon atoms and a fluoroalkyl group having 4 or more carbon atoms. In general formula (1), each X independently represents a single bond or -NR3-, R1 and R2 each independently represent a C4-30 divalent organic group, and R3 represents a hydrogen atom or a C1-10 monovalent organic group. In general formula (2), R4 represents aC4-30 divalent organic group, and R5 represents a C4-30 tetravalent organic group. In general formula (3), R6 represents a C4-30 divalent organic group, R7 represents a C4-30 trivalent organic group,l, m, and n are each an integer of 0 or more, and 1+m+n is 10 or more. In addition, the structures represented by general formulae (1)-(3) do not necessarily appear in succession.

Description

technical field [0001] The present invention relates to a resin, a resin composition, and a nonwoven fabric using them that are particularly suitable for use in separators and electric double layer capacitors, and also relates to the use thereof. Background technique [0002] Lithium-ion batteries are rechargeable, high-capacity batteries that enable high-performance, long-term operation of electronic instruments. Furthermore, lithium-ion batteries are installed in automobiles and the like, and are considered likely to be used as batteries for hybrid vehicles and electric vehicles. [0003] Lithium-ion batteries widely used today have a separator using a porous film of polyolefin. However, when the temperature of the battery becomes too high, the separator shrinks or melts, possibly causing a short circuit between the electrodes. [0004] Therefore, there are disclosed separators in which a porous layer containing a heat-resistant resin or a composite of heat-resistant par...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/28D01D5/04D04H1/4326D04H1/728
CPCD04H1/4326D04H1/728C08G18/324C08G18/755C08G18/2865C08G18/10C08G18/3872C08G18/3243C08G18/2885C08G18/71C08G18/281C08G18/12C08G18/3206C08G18/7671C08G18/73C08G18/3228C08G18/341C08G18/346C08G18/345C08G18/7621C08G18/7685C08G18/721C08G73/14C08G73/1007C08G73/1017C08G73/1053C08G73/1071C08G73/1046C08G69/00D01F6/60D01F6/72D01F6/74D01D5/0038Y02E60/10C08G18/28C08G73/10D01D5/04H01J11/36H01M50/414C08L79/08D04H1/4342C08L2203/20
Inventor 茶山奈津子弓场智之
Owner TORAY IND INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com