Electrode material and preparation method thereof, and aluminum electrolytic capacitor

A technology of electrode material and electrode foil, which is applied in the direction of battery electrodes, circuits, electrical components, etc., to achieve the effect of mild operating conditions, superior electrical performance, and easy automatic production

Inactive Publication Date: 2019-08-30
CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Conductive polymer solid chip aluminum electrolytic capacitors The main polymerization methods for low-voltage products are polythiophene or polypyrrole. These two methods can only prepare conductive polymer solid chip aluminum electrolytic capacitors with a rated voltage of ≤10V, but higher voltage products cannot. Apply the above two methods to aggregate

Method used

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  • Electrode material and preparation method thereof, and aluminum electrolytic capacitor
  • Electrode material and preparation method thereof, and aluminum electrolytic capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] A conductive polymer electrode material

[0063] (1) Pretreatment: Mix 1000g of deionized water and 500g of absolute ethanol evenly, then add 63g of silane coupling agent 171 and stir magnetically for 10 minutes, then pour it into the dipping tank, put it into the aluminum foil to be pretreated, dip for 5 minutes, and air dry for 15 minutes , and then placed in an oven for 60 minutes at 120°C.

[0064] (2) Mix 2500g of absolute ethanol and 80g of 3-methoxythiophene evenly, then magnetically stir for 10min to prepare a monomer solution, then pour it into the dipping tank, put it into the pretreated aluminum foil, dip for 3min, then put Into a constant temperature and humidity chamber with a temperature of 30° C. and a humidity of 60% RH for 10 minutes.

[0065] (3) Mix 2500g of deionized water, 1000g of sodium persulfate and 5g of sodium alkylbenzene sulfonate evenly, then stir for 60 minutes to prepare an oxidizing agent solution, then pour it into the dipping tank, an...

Embodiment 2

[0074] (1) Pretreatment: Mix 1000g of deionized water and 500g of absolute ethanol evenly, then add 55g of silane coupling agent 171 and magnetically stir for 10min, then pour it into the dipping tank, put it into the aluminum foil to be pretreated, dip for 5min, and air dry for 15min , and then placed in an oven for 60 minutes at 120°C.

[0075] (2) Mix 2500g of absolute ethanol and 90g of N-ethylpyrrole evenly, then stir magnetically for 10 minutes, prepare a monomer solution, then pour it into the dipping tank, put it into the pretreated aluminum foil, dip it for 4 minutes, and then put it in 10 minutes in a constant temperature and humidity chamber with a temperature of 40° C. and a humidity of 50% RH.

[0076] (3) Mix 2500g of deionized water, 1000g of ferric p-toluenesulfonate and 5g of sodium alkylbenzenesulfonate evenly, then stir for 60min to make an oxidant solution, then pour it into the dipping tank, and put it into the impregnated monomer solution The aluminum fo...

Embodiment 3

[0085] A conductive polymer electrode material

[0086] (1) Pretreatment: Mix 1000g of deionized water and 500g of absolute ethanol evenly, then add 15g of silane coupling agent 172 and stir magnetically for 10min, then pour it into the dipping tank, put it into the aluminum foil to be pretreated, dip for 5min, and air dry for 15min , and then placed in an oven for 60 minutes at 120°C.

[0087] (2) Mix 2500g of absolute ethanol and 1250g of 3-methoxythiophene evenly, then magnetically stir for 10min to prepare a monomer solution, then pour it into the dipping tank, put it into the pretreated aluminum foil, dip for 3min, then put Into a constant temperature and humidity chamber with a temperature of 30° C. and a humidity of 60% RH for 10 minutes.

[0088] (3) Mix 2500g of deionized water, 250g of sodium persulfate and 12.5g of sodium alkylbenzene sulfonate evenly, then stir for 60 minutes to prepare an oxidizing agent solution, then pour it into the dipping tank, and put it in...

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Abstract

The invention provides an electrode material and a preparation method thereof, and an aluminum electrolytic capacitor. The electrode material comprises an electrode foil, and a surfactant layer, a polymer layer A, a polymer layer B and a polymer layer C which are attached onto the electrode foil in order, wherein the polymer layer C is the outermost layer far away from the electrode foil; the polymer layer A is obtained by reacting monomers under the action of an oxidant and a catalyst, and the polymer layer B is mainly obtained by mixing and drying one or more of LV, LVN and LVNS; the polymerlayer C comprises a polymer layer C1 and a polymer layer C2 which are sequentially alternated, wherein the polymer layer C1 is mainly obtained by mixing and drying one or more than one of W5, W5N, W8and W8N, and the polymer layer C2 is mainly obtained by mixing and drying one or more than one of KV2 and KV2N. According to the invention, the electrode foil is attached with multiple layers of materials, so that the electric properties such as rated voltage (more than or equal to 10V), capacitance and the like of the product are improved.

Description

technical field [0001] The invention relates to the field of electrode materials, in particular to an electrode material, a preparation method thereof and an aluminum electrolytic capacitor. Background technique [0002] Conductive polymer solid chip aluminum electrolytic capacitors are chip solid aluminum electrolytic capacitors that use high-conductivity polymer materials as cathodes. They have superior performance beyond existing liquid chip aluminum electrolytic capacitors and solid chip tantalum electrolytic capacitors. [0003] Conductive polymer solid chip aluminum electrolytic capacitors have excellent thermal stability, good frequency characteristics, low equivalent series resistance, high reliability and strong ability to reduce ripple voltage, allowing greater ripple current, suitable for low resistance Demanding electronic circuits and long-lasting terminal electronic products. Conductive polymer solid chip aluminum electrolytic capacitors have an impedance curv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/60
CPCH01M4/602Y02E60/10
Inventor 靳博秦钟华陈琛陈续鑫蒋松成李如升吴娅
Owner CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
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