Sealing agent for electrochemical device in which nonaqueous electrolytic solution is used, and sealing agent composition for electrochemical device

A non-aqueous electrolyte and electrochemical technology, applied in the field of sealant compositions for electrochemical devices, can solve the problems of insufficient sealing performance, insufficient wettability and sufficient tightness, etc., and achieve sufficient sealing Effect

Active Publication Date: 2018-08-31
ZEON CORP
View PDF15 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since TPC is a resin with higher polarity than polypropylene, etc., there are cases where sufficient wettability and sufficient adhesion cannot be obtained in sealants that do not contain polar groups
That is, when a sealant not containing a polar group, such as a sealant for a polypropylene gasket, is used for a TPC gasket, the sealing performance may become insufficient.

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
  • Sealing agent for electrochemical device in which nonaqueous electrolytic solution is used, and sealing agent composition for electrochemical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] 55 parts of polymer (1) obtained in Polymerization Example 1 as (A) conjugated diene polymer, 15 parts of styrene as (B) aromatic vinyl-conjugated diene block polymer SIS content of 15%, Mw=32000, 30 parts of amine-modified styrene-ethylene-butylene as hydrogenated product of (C) amine-modified aromatic vinyl-conjugated diene block polymer Alkene-styrene block copolymer (Tuftec MP10, manufactured by Asahi Kasei Chemicals Co., Ltd.), 5 parts of carbon black (furnace black with a primary particle size of 10 nm) as (D) inorganic filler, and an organic solvent (xylene) in a belt The mixture was mixed while heating to 50° C. in a flask with a stirring blade to obtain a uniform solution (sealant composition) having a solid content concentration of 5%.

Embodiment 2

[0112] 65 parts of polymer (1) obtained in Polymerization Example 1 as (A) conjugated diene polymer, and 13 parts of polymer (1) as (B) aromatic vinyl-conjugated diene block polymer were carried out. Example 1 Same SIS, 22 parts of amine-modified styrene-ethylene-butylene-styrene block polymer as hydrogenated product of (C) amine-modified aromatic vinyl-conjugated diene block polymer Segment copolymer (Tuftec MP10, manufactured by Asahi Kasei Chemicals), 5 parts of the same carbon black as (D) inorganic filler and organic solvent (xylene) as in Example 1 were heated to 50° C. in a flask with stirring wings. While mixing, a uniform solution (sealant composition) having a solid content concentration of 10% was obtained.

Embodiment 3

[0114] 60 parts of polymer (2) obtained in Polymerization Example 2 as (A) conjugated diene polymer, and 10 parts of polymer (2) as (B) aromatic vinyl-conjugated diene block polymer were carried out. Example 1 Same SIS, 30 parts of amine-modified styrene-ethylene-butylene-styrene block polymer as hydrogenated product of (C) amine-modified aromatic vinyl-conjugated diene block polymer Segment copolymer (Tuftec MP10, manufactured by Asahi Kasei Chemicals), 5 parts of the same carbon black as (D) inorganic filler and organic solvent (xylene) as in Example 1 were heated to 50° C. in a flask with stirring wings. While mixing, a uniform solution (sealant composition) having a solid content concentration of 12% was obtained.

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
specific surface areaaaaaaaaaaa
Login to view more

Abstract

The objective of the present invention is to provide a sealing agent for an electrochemical device in which a nonaqueous electrolytic solution is used, the sealing agent having adequate sealing performance for a high-polarity resin. This sealing agent contains (A) a conjugated diene polymer, (B) an aromatic vinyl-conjugated diene block polymer, and (C) a hydrogenation product of an amine-modifiedaromatic vinyl-conjugated diene block polymer.

Description

technical field [0001] The present invention relates to a sealant for electrochemical devices that can be used in electrochemical devices using non-aqueous electrolytic solutions such as lithium ion batteries, and a sealant composition for electrochemical devices using the sealant. Background technique [0002] As an electrochemical device using an electrolytic solution (non-aqueous electrolytic solution) containing an organic solvent, there are electric double layer capacitors and lithium ion batteries. In the electrochemical device described above, it is necessary to prevent evaporation and leakage of the sealed electrolyte solution, and to prevent intrusion of water and water vapor from the outside. Therefore, sealants are widely used in electrochemical devices. [0003] Vinyl aromatic hydrocarbon-conjugated diene block polymers or hydrogenated products thereof, conjugated diene polymers, and the like have been proposed as sealing agents (for example, refer to Patent Doc...

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): H01M2/08C08K3/00C08L47/00C08L53/02C09K3/10H01G11/80H01M10/052H01M10/0566H01M50/171H01M50/186H01M50/193
CPCC08K3/00C09K3/10C08L47/00C08L53/02H01G11/80H01M10/052H01M10/0566Y02E60/10H01M50/171H01M50/186H01M50/193C08K3/013C08L53/025H01M10/0525H01M50/183Y02E60/13Y02T10/70C08L25/18C08L67/00C08L2205/025C08L2205/03C08L2207/04
Inventor 前田耕一郎
Owner ZEON CORP
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