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electroactive polymer solution or coating, Composition and method for forming the same, object containing the same, capacitor and method for fabricating the same

An electroactive, polymer technology applied to electroactive polymer solutions or coatings, compositions forming the same, and articles containing the same, capable of addressing high failure rates, limiting the performance, service life and application of conventional solid state capacitors Potential, low withstand voltage, etc.

Pending Publication Date: 2018-09-07
POLYM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the use length of the corresponding cathode foil and the two separators (separator) must also be correspondingly greatly increased, resulting in a substantial increase in the overall volume and size of the capacitor
The fact that the dielectric layer has a high percentage of unfilled or only partially filled voids also makes conventional solid capacitors very susceptible to vibrational stresses as well as mechanical shocks during their application, resulting in higher failure rates and more short service life
Known solid capacitors also have the disadvantages of poor thermal stability and relatively low withstand voltage, which may be due to the use of a large amount of iron (III) tosylate (requires 2.5 equivalents in theory) as EDOT (ie 3,4-sub- Ethyldioxythiophene) monomer oxidative polymerization oxidant caused by the presence of a large number of transition metal pollutants
All these disadvantages greatly limit the performance, service life and application potential of conventional solid capacitors

Method used

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  • electroactive polymer solution or coating, Composition and method for forming the same, object containing the same, capacitor and method for fabricating the same
  • electroactive polymer solution or coating, Composition and method for forming the same, object containing the same, capacitor and method for fabricating the same
  • electroactive polymer solution or coating, Composition and method for forming the same, object containing the same, capacitor and method for fabricating the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~4

[0183] Examples 1 to 4: Efficacy of functional components of polymerization inhibitors and polymer binders

[0184] For example, the conventional process of designing a capacitor with a rated voltage of 6.3V and a rated capacitance of 470mF will have Al 2 O 3The anode foil of the dielectric layer and the high surface area cathode foil are wound together with a separator to form a solid electrolytic capacitor element, where the anode foil is formed at an electrochemical formation voltage of 9V and the cathode foil is electrochemically etched prepared. After electrochemical reconversion treatment in an organic acid solution to repair the damaged dielectric layer, the capacitor element was immersed for 10 minutes in a composition containing the following: monomer (2-bromo-3-ethylenediyl Thiophene (BEDOT); 1 M), acid catalyst (toluenesulfonic acid (TsOH) 0.05 equiv), and optionally added functional ingredients such as polymerization inhibitors (eg, ethyl acetate (EA); 1 equiv) a...

Embodiment 5~8

[0191] Embodiment 5~8: the thermal stability test under 240 ℃

[0192] In the experiments of Examples 5 to 8, the solid-state capacitors prepared in Examples 1 to 4 were heated at a temperature of 240° C. for 38 minutes, respectively. After cooling to room temperature, the properties of the resulting capacitors were measured, and the test results are listed in Table 2 of Examples 5-8.

Embodiment 9~11

[0199] Embodiment 9~11: Withstand voltage or breakdown voltage test I

[0200] For example, the conventional process of designing a capacitor with a rated voltage of 35V and a rated capacitance of 220mF will have Al 2 O 3 The anode aluminum foil of the dielectric layer and the high surface area cathode aluminum foil are wound together with a separator to form a solid electrolytic capacitor element. The anode aluminum foil is formed under the electrochemical formation voltage of 50V, and the cathode aluminum foil is prepared by electrochemical erosion. After electrochemical reconversion treatment in an organic acid solution to repair the damaged dielectric layer, the capacitor element was immersed for 10 minutes in a composition solution containing: monomer (BEDOT; 1.5M), various acids Catalyst (listed in Table 3; 0.15 equiv) and functional ingredients (polymerization inhibitor (ether; 2 equiv) and polymeric binder (PS-PMMA; 0.2 equiv)). Then, the soaked capacitor element wa...

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Abstract

A composition for forming an electroactive coating is provided, including an acid as a polymerization catalyst, at least one functional component, and at least one compound of formula (1) as a monomer: wherein X is selected from S, O, Se, Te, PR2 and NR2, Y is hydrogen (H) or a precursor of a good leaving group Y- whose conjugate acid (HY) has a pKa of less than 45, Z is hydrogen (H), silyl, or agood leaving group whose conjugate acid (HY) has a pKa of less than 45, b is 0, 1 or 2, each R1 is a substituent, and the at least one compound of formula (1) includes at least one compound of formula(1) with Z=H and Y<1>H.

Description

technical field [0001] The present invention relates to a conductive polymer, its preparation and use, and in particular to a method for forming a conjugated heteroaromatic ring polymer, a conjugated heteroaromatic ring homopolymer formed by said method compound or conjugated heteroaromatic ring copolymer, a composition for forming an electroactive polymer solution or coating containing a conjugated heteroaromatic ring polymer, a composition containing an electroactive polymer prepared from the composition A solution of a polymer, an electroactive coating prepared from the composition, a capacitor, supercapacitor, secondary battery, electroactive article, electronic component, containing an electroactive coating prepared from the composition, Flexible electronics, displays, electrochromic windows, touch panels, touch screens, anti-corrosion coatings or conductive ink printing, a method for forming electroactive polymer solutions or coatings using the composition, Capacitor, s...

Claims

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Application Information

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IPC IPC(8): C09D165/00C09D5/24H01G9/004H01G9/028
CPCC09D5/24C09D165/00H01G9/004H01G9/028C08G61/124C08G61/125C08G61/126C08L65/00H01G9/0036H01G9/15H01B1/127C08G2261/12C08G2261/126C08G2261/1412C08G2261/1424C08G2261/3221C08G2261/3222C08G2261/3223C08G2261/42C08G2261/512H01G11/56H01G4/18Y02E10/549H10K85/1135C08L25/00
Inventor 韩建中顾庭嘉江若玟
Owner POLYM TECH
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