KR20050048339A - Manufacturing method of electrode for lead storage battery - Google Patents
Manufacturing method of electrode for lead storage battery Download PDFInfo
- Publication number
- KR20050048339A KR20050048339A KR1020030082245A KR20030082245A KR20050048339A KR 20050048339 A KR20050048339 A KR 20050048339A KR 1020030082245 A KR1020030082245 A KR 1020030082245A KR 20030082245 A KR20030082245 A KR 20030082245A KR 20050048339 A KR20050048339 A KR 20050048339A
- Authority
- KR
- South Korea
- Prior art keywords
- electrode
- active material
- soft plate
- manufacturing
- roughness
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
본 발명은 납축전지의 전극 제조방법에 관한 것으로, 더욱 상세하게는 전극의 표면적을 증가시켜 전극의 표면에 도포되는 활물질의 결합면적과 결합력을 증가시켜 고율방전특성이 우수한 전극을 제조하는 납축전지의 전극 제조방법에 관한 것이다.The present invention relates to a method for manufacturing an electrode of a lead acid battery, and more particularly, to a lead acid battery for producing an electrode having excellent high rate discharge characteristics by increasing the bonding area and bonding force of an active material applied to the surface of an electrode by increasing the surface area of the electrode. It relates to an electrode manufacturing method.
이를 위한 본 발명은 연판을 주조하는 연판주조공정(1)과, 주조된 연판(10)을 롤러(20)로 압착하는 압연공정(2)과, 압연공정(2)을 거친 연판(10)을 전극의 형상으로 형성시키는 전극성형공정(3)과, 성형이 완료된 전극(30)의 표면에 거칠기를 부여하는 거칠기 부여공정(4)으로 전극을 제조함으로써, 활물질이 도포되는 전극의 표면적이 증대되어 도포극판 숙성시 활물질이 전극의 표면을 부식시켜 결합되는 유효면적을 크게 하여 전극과 활물질과의 결합력을 향상시킬 수 있고, 또한 전극과 활물질과의 결합력이 증대되어 활물질의 탈락으로 인하여 전극의 내구수명이 줄어드는 것을 방지할 수 있는 효과가 있는 것임.The present invention for this purpose is a soft plate casting process (1) for casting a soft plate, a rolling step (2) for pressing the cast soft plate 10 with a roller 20, and the soft plate 10 through the rolling process (2) By producing the electrode in the electrode forming step (3) for forming the electrode in the shape and the roughness providing step (4) for giving the roughness to the surface of the electrode 30, the surface of the electrode to which the active material is applied is increased. When aging the coated electrode plate, the active area corrodes the surface of the electrode to increase the effective area bonded to the electrode to improve the bonding strength between the electrode and the active material, and the bonding strength between the electrode and the active material is increased, and the durability life of the electrode due to the falling off of the active material There is an effect that can prevent this shrinkage.
Description
본 발명은 납축전지의 전극 제조방법에 관한 것으로, 더욱 상세하게는 전극의 표면적을 증가시켜 전극의 표면에 도포되는 활물질의 결합면적과 결합력을 증가시켜 고율방전특성 및 내구수명이 우수한 전극을 제조하는 납축전지의 전극 제조방법에 관한 것이다.The present invention relates to a method for manufacturing an electrode of a lead acid battery, and more particularly, to increase the surface area of the electrode to increase the bonding area and the bonding strength of the active material applied to the surface of the electrode to produce an electrode having high rate discharge characteristics and durability life. It relates to a method for producing an electrode of a lead acid battery.
일반적으로 납축전지의 전극은 그 표면에 활물질을 도포하게 되며, 전극과 활물질과의 기계적 강도를 증대시켜 활물질의 전기 및 이온전도도 향상을 위한 연구가 이루어지고 있다. In general, an electrode of a lead acid battery is coated with an active material on a surface thereof, and a study for improving electrical and ion conductivity of an active material has been made by increasing the mechanical strength between the electrode and the active material.
종래에 있어서의 납축전지용 전극은 중력주조방식으로 제조된다 그런데 이와 같은 경우 전극의 미세조직이 주조조직의 특성을 가지므로 필연적으로 주조결함을 포함하게된다. 따라서 전극에 요구되는 기계적 강도와 부식 저항성 측면에서 충분치 못한 특성을 나타낸다. 이러한 단점을 극복하고자 일부 납축전지 제조업체에서는 전극을 주조한 후 압연공정을 추가하여 전극의 금속조직을 보다 치밀하게 바꾸어 사용하는 제조방식을 채택하고 있다. 압연공정을 추가할 경우 가공경화효과를 가져와 기계적 특성이 향상되며, 금속조직 내의 주조결함이 제거되어 부식 저항성이 개선된다. 그러나 압연시 주조된 전극의 표면이 매끈한 롤러에 눌려 표면 거칠기가 매우 낮아지므로 전극에 활물질의 도포시 활물질과의 결합이 원활하지 못한 문제점이 있는 것이다. In the prior art, the lead acid battery electrode is manufactured by a gravity casting method. However, in this case, since the microstructure of the electrode has characteristics of the casting structure, it inevitably includes casting defects. Therefore, they exhibit insufficient properties in terms of mechanical strength and corrosion resistance required for the electrode. In order to overcome this drawback, some lead acid battery manufacturers adopt a manufacturing method in which the metal structure of the electrode is more precisely changed by adding a rolling process after casting the electrode. The addition of the rolling process has the effect of hardening work, improving mechanical properties, and eliminating casting defects in the metal structure, thereby improving corrosion resistance. However, since the surface roughness is very low because the surface of the cast electrode is pressed by a smooth roller during rolling, there is a problem that the bonding with the active material is not smooth when the active material is applied to the electrode.
본 발명은 상기한 바와 같은 종래의 문제점을 해결하기 위한 것으로서, 본 발명은 전극의 표면적을 증가시켜 전극의 표면에 도포되는 활물질의 결합면적과 결합력을 증가시켜 고율 방전특성 및 내구수명이 우수한 전극을 제조하는 납축전지의 전극 제조방법을 제공함에 그 목적이 있다.The present invention is to solve the conventional problems as described above, the present invention is to increase the surface area of the electrode to increase the bonding area and bonding strength of the active material applied to the surface of the electrode to provide an electrode having excellent high rate discharge characteristics and durability life Its purpose is to provide an electrode manufacturing method of a lead acid battery to be manufactured.
본 발명은 상기와 같은 목적을 달성하기 위하여 다음과 같이 구성된다. 즉, 본 발명은 연판을 주조하는 연판주조공정과, 주조된 연판을 롤러로 압착하는 압연공정과, 압연공정을 거친 연판을 전극의 형상으로 형성시키는 전극성형공정과, 성형이 완료된 전극의 표면에 거칠기를 부여하는 거칠기부여 공정으로 납축전지의 전극을 제조하는 것에 특징을 둔 것이다. The present invention is configured as follows to achieve the above object. That is, the present invention provides a soft plate casting process for casting a soft plate, a rolling process for pressing the cast soft plate with a roller, an electrode forming process for forming a soft plate that has undergone the rolling process in the shape of an electrode, and a surface of a completed electrode. The present invention is characterized by manufacturing an electrode of a lead acid battery by a roughness imparting step of imparting roughness.
이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;
첨부된 도면 도 1 는 본 발명에 따른 전극의 제조공정을 도시한 공정도이다.1 is a process chart showing the manufacturing process of the electrode according to the present invention.
도 1 에 도시되는 바와 같이, 본 발명은 연판을 주조하는 연판주조공정(1)과, 주조된 연판(10)을 롤러(20)로 압착하는 압연공정(2)과, 압연공정(2)을 거친 연판(10)을 전극의 형상으로 형성시키는 전극성형공정(3)과, 성형이 완료된 전극(30)의 표면에 거칠기를 부여하는 거칠기 부여공정(4)으로 납축전지의 전극을 제조하는 것이다.As shown in FIG. 1, the present invention relates to a soft plate casting step 1 for casting a soft plate, a rolling step 2 for pressing the cast soft plate 10 with a roller 20, and a rolling step 2. The electrode of a lead acid battery is manufactured by an electrode shaping step (3) for forming the rough lead plate (10) in the shape of an electrode, and a roughness giving step (4) which gives a roughness to the surface of the completed electrode 30.
전극(30)의 표면에 거칠기를 부여함에 있어서는 롤러의 표면에 널링을 형성시켜 압착되는 전극의 표면에 스크랫치를 형성시킬 수도 있고, 타격면이 거칠게 처리된 해머로 타격하여 거칠기를 부여할 수도 있는 것이다.In imparting roughness to the surface of the electrode 30, a knurling may be formed on the surface of the roller to form a scratch on the surface of the electrode to be crimped, or the roughness may be imparted by hitting with a roughly treated hammer. will be.
또한 본 발명은 어떠한 특정의 제조방법에 의해 제조되는 전극에 한정되어 이용되는 것이 아니라 제조방법에 상관하지 아니하고, 모든 전극의 제조공정 중에서 최종의 공정에 추가되거나 공정의 중간에 추가 삽입되어 이용될 수 있는 것이다.In addition, the present invention is not limited to the electrode manufactured by any particular manufacturing method, and may be used regardless of the manufacturing method, and may be used in addition to the final process or additionally inserted in the middle of the manufacturing process of all the electrodes. It is.
이와 같이 본 발명은 전극(30)의 표면이 거칠게 제조됨에 따라 전극의 표면에 도포되는 활물질과의 접촉면적이 증대되어 고율 방전특성이 향상되며, 활물질의 결합력이 증대되어 납축전지의 수명과 성능이 향상되는 것이다.As described above, according to the present invention, as the surface of the electrode 30 is manufactured to be rough, the contact area with the active material applied to the surface of the electrode is increased, so that the high rate discharge characteristic is improved, and the binding force of the active material is increased to improve the life and performance of the lead acid battery. To improve.
본 발명은 전술한 실시 예에 한정되지 않고 본 발명의 기술사상이 허용하는 범위 내에서 다양하게 변형하여 실시할 수가 있다. The present invention is not limited to the above embodiments, and various modifications can be made within the scope allowed by the technical idea of the present invention.
이상에서와 같이 본 발명에 따르면 전극의 표면에 일정한 거치기를 부여함으로써, 활물질이 도포되는 표면적이 증대되어 도포극판 숙성시 활물질이 전극의 표면을 부식시켜 결합되는 유효면적을 크게 하여 전극과 활물질과의 결합력을 향상시킬 수 있는 것이다.As described above, according to the present invention, by providing a constant roughness on the surface of the electrode, the surface area to which the active material is applied is increased to increase the effective area in which the active material corrodes the surface of the electrode to bond the electrode and the active material when the coated electrode plate is aged. You can improve the bonding force.
또한 전극과 활물질과의 결합력이 증대되어 활물질의 탈락으로 인하여 전극의 내구수명이 줄어드는 것을 방지할 수 있는 효과가 있는 것이다.In addition, the bonding force between the electrode and the active material is increased, thereby reducing the durability life of the electrode due to the dropping of the active material.
도 1 는 본 발명에 따른 전극의 제조공정을 도시한 공정도1 is a process chart showing the manufacturing process of the electrode according to the present invention
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1. 연판주조공정 2. 압연공정1. Sheet metal casting process 2. Rolling process
3. 전극성형공정 4. 거칠기 부여공정3. Electrode molding process 4. Roughness process
10. 연판 30. 전극10. Soft board 30. Electrode
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030082245A KR20050048339A (en) | 2003-11-19 | 2003-11-19 | Manufacturing method of electrode for lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030082245A KR20050048339A (en) | 2003-11-19 | 2003-11-19 | Manufacturing method of electrode for lead storage battery |
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| Publication Number | Publication Date |
|---|---|
| KR20050048339A true KR20050048339A (en) | 2005-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020030082245A KR20050048339A (en) | 2003-11-19 | 2003-11-19 | Manufacturing method of electrode for lead storage battery |
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| Country | Link |
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| KR (1) | KR20050048339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2124274B1 (en) | 2008-05-21 | 2016-03-09 | Wirtz Manufacturing Co., Inc. | Reformed battery grids |
-
2003
- 2003-11-19 KR KR1020030082245A patent/KR20050048339A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2124274B1 (en) | 2008-05-21 | 2016-03-09 | Wirtz Manufacturing Co., Inc. | Reformed battery grids |
| EP3024072A1 (en) | 2008-05-21 | 2016-05-25 | Wirtz Manufacturing Co., Inc. | Reformed battery grids |
| US9755242B2 (en) | 2008-05-21 | 2017-09-05 | Wirtz Manufacturing Co., Inc. | Reformed battery grids |
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