JPS61264675A - Positive plate of clad type lead-acid battery - Google Patents
Positive plate of clad type lead-acid batteryInfo
- Publication number
- JPS61264675A JPS61264675A JP60106464A JP10646485A JPS61264675A JP S61264675 A JPS61264675 A JP S61264675A JP 60106464 A JP60106464 A JP 60106464A JP 10646485 A JP10646485 A JP 10646485A JP S61264675 A JPS61264675 A JP S61264675A
- Authority
- JP
- Japan
- Prior art keywords
- lead powder
- graphite
- apparent density
- filling
- specified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はクラッド式鉛電池正極板（以下、クラッド式正
極板という）の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an improvement of a clad type lead battery positive electrode plate (hereinafter referred to as a clad type positive electrode plate).
従来の技術とその問題点
クラッド式正極板はガラス繊維や耐酸性の合成繊維など
からなる多孔性チューブの中心に鉛合金の芯金を配置し
た格子体に鉛粉を充填し、ソーキング、化成等の工程を
経て製造される。チューブが活物質の脱落を防止するの
で、ペースト式正極板よりも寿命が長い点に特徴がある
。Conventional technology and its problems Clad type positive electrode plate is a porous tube made of glass fiber or acid-resistant synthetic fiber, etc., in which a lead alloy core is placed at the center of the lattice, which is filled with lead powder. It is manufactured through the process of The tube prevents the active material from falling off, so it has a longer lifespan than a paste-type positive electrode plate.
クラッド式正極板のｔＩｉ電性能を向上させるためには
、正極活物質の利用率を高める必要がある。In order to improve the tIi electrical performance of a clad positive electrode plate, it is necessary to increase the utilization rate of the positive electrode active material.
一定容積のチューブに充填する鉛粉が多い（充填密度が
高い）部活物質の密度が高くなるので、活物質利用率は
低くなる。したがって活物質利用率の点からは鉛粉の充
填密度は低い方が好ましいが、充填密度が低く過ぎると
活物質粒子間や活物質と集電体である芯金との結合が悪
くなって極板の化成性や放電性能は低下してしまうので
、放電性能の改善は困難であった。Since the density of the active material becomes higher when more lead powder is filled into a tube of a certain volume (higher packing density), the active material utilization rate becomes lower. Therefore, from the point of view of active material utilization, it is preferable that the packing density of lead powder is low, but if the packing density is too low, the bonding between active material particles and the active material and the core metal, which is a current collector, will be poor, resulting in extremely poor packing density. Since the chemical formation property and discharge performance of the plate deteriorate, it has been difficult to improve the discharge performance.
問題点を解決するための手段
本発明は上述した問題点を鉛粉に異方′性の大なる黒鉛
を添加することによって解消し、優れた放電性能のクラ
ッド式正極板を提供するものである。Means for Solving the Problems The present invention solves the above-mentioned problems by adding highly anisotropic graphite to lead powder, and provides a clad positive electrode plate with excellent discharge performance. .
即ち、異方性の大なる黒鉛を硫酸中で陽極酸化すると、
黒鉛！１ｇＩ間に硫酸が侵入して１１脹すると共に、元
の黒鉛よりも導電性の優れた黒鉛層間化合物が生成する
ことを利用するもので、これによってチューブ内に充填
する鉛粉の密度を下げても充分に化或は進行し、しかも
電池の充電中に異方性黒鉛が膨張して活物質粒子間およ
び活物質と芯金との結合を強固にするため、優れた放電
性能のクラッド式正極板が得られることがわかった。と
ころが、このような効果は使用する鉛粉の粒度によって
異なり、見掛は密度の高い粗い鉛粉ではほとんど効果が
なく、粒度の細かい鉛粉はと異方性黒鉛の添加による効
果が大であった。That is, when highly anisotropic graphite is anodized in sulfuric acid,
graphite! This method takes advantage of the fact that sulfuric acid enters between 1gI and expands, producing a graphite intercalation compound that has better conductivity than the original graphite.This reduces the density of the lead powder filled into the tube. The cladding type cathode has excellent discharge performance because the anisotropic graphite expands during charging of the battery and strengthens the bond between the active material particles and between the active material and the core metal. It turns out that the board is obtained. However, this effect varies depending on the particle size of the lead powder used; coarse lead powder with a high apparent density has almost no effect, while fine lead powder has a large effect due to the addition of anisotropic graphite. Ta.
実施例 以下本発明を実施例により具体的に説明する。Example The present invention will be specifically explained below using examples.
ＰｂＯ約７約７歿
密度の異なる５種類の鉛粉にそれぞれ異方性の大なる黒
鉛（粒径１００〜１２００μｍ）を１ｗｔ％添加してよ
く混合した。この混合物をチューブ径９１のクラッド式
格子体（ １ ０ｃｍ Ｘ １ ０ａｎ ）に充填した
。鉛粉の充填密度は２．４ｏ ／ａＡで一定とした。充
填後の極板は比重１．１０の希＠酸に２４時間浸漬した
後５０℃で２４時間乾燥した。作製した未化成のクラッ
ド式正極板は容量の大きな負極板と組合せて正極板１枚
，負極板２枚の構成で電池を組み、初充電を行ってから
電解液比重を１．２６に調整した後５Ｈ Ｒ放電試験を
行った。試験結果を次表に示す。1 wt % of highly anisotropic graphite (particle size 100 to 1200 μm) was added to each of five types of lead powder having different densities and mixed well. This mixture was filled into a clad lattice body (10 cm x 10 an) with a tube diameter of 91 mm. The packing density of lead powder was kept constant at 2.4o/aA. The filled electrode plate was immersed in dilute acid having a specific gravity of 1.10 for 24 hours, and then dried at 50° C. for 24 hours. The produced unformed clad positive electrode plate was combined with a negative electrode plate of large capacity to assemble a battery with a configuration of one positive electrode plate and two negative electrode plates, and after initial charging, the electrolyte specific gravity was adjusted to 1.26. A 5HR discharge test was then conducted. The test results are shown in the table below.
表において鉛粉の見掛は密度はＪＩＳＫ５１０１に準じ
て測定した値を示した。なお電池記号のＡ系列はそれぞ
れ比較のために作製した試験電池で鉛粉に異方性黒鉛を
添加していないものである。日系列電池の１〜目５ＨＲ
容量は使用した鉛粉の見掛は密度によって大きな差異は
なく、どちらかと言えば鉛粉の見掛は密度が小さい鉛粉
を充填した電池の容■がやや低い傾向を示した。一方、
異方性の大なる黒鉛を１％添加したＢ系列の電池では使
用した鉛粉の見掛は密度によって放電容量に著しい差異
が現われた。鉛粉の見掛は密度が１．６ｇ／ａａおよび
１．３０ ／ｃｒｔ１では異方性黒鉛を添加してもしな
くても放電容量に差はなく該黒鉛の添加の効果は認めら
れなかった。しかし、黒鉛の見掛は密度が１．１ｏ ／
−以下では異方性黒鉛の添加によって５°２０′〜５”
３０’ に放電容量が増加し、放電容量の増加率は最
大４０％近くにも達したく電池Ｎｏ，５−Ａとｓ−Ｂと
の比較）。供試電池の活物質量はいずれもほぼ一定であ
ったから、このような放電容量の増加は正極活物質利用
率が向上したことを意味している。In the table, the apparent density of lead powder is the value measured according to JIS K5101. Note that the A series of battery symbols are test batteries prepared for comparison, in which no anisotropic graphite was added to the lead powder. 1st to 5th HR of day series batteries
There was no significant difference in capacity depending on the density of the lead powder used, and if anything, the capacity of batteries filled with lead powder, which has a smaller apparent density, tended to be slightly lower. on the other hand,
In the B-series batteries in which 1% of highly anisotropic graphite was added, there appeared a significant difference in discharge capacity depending on the apparent density of the lead powder used. When the apparent density of lead powder was 1.6 g/aa and 1.30/crt1, there was no difference in discharge capacity whether or not anisotropic graphite was added, and no effect of the addition of graphite was observed. However, the apparent density of graphite is 1.1o/
- below 5°20'~5'' by adding anisotropic graphite
30', and the rate of increase in discharge capacity reached nearly 40% (comparison between battery No. 5-A and s-B). Since the amount of active material in all of the test batteries was approximately constant, such an increase in discharge capacity means that the utilization rate of the positive electrode active material was improved.
このような異方性黒鉛の添加の効果は充放電サイクルを
繰返しても失われることはなかった。使用する鉛粉の見
掛は密度によって該黒鉛添加の効果が異なる理由は明ら
かではないが゛、鉛粉の見掛は密度が１．１（］ ／−
以下であれば異方性黒鉛の添加による電池性能の顕著な
改善が可能になることは疑いのない事実であった。なお
、本実施例では異方性の大なる黒鉛を１％添加した場合
の結果を示したが、０．３〜２．０％の範囲で同様の結
果を得たことを付記する。また、該黒鉛の粒径は本実施
例に示したように１００〜１２００μ慣が好ましく、中
でも３５０〜１２００μｍが最適であった。The effect of adding anisotropic graphite was not lost even after repeated charging and discharging cycles. It is not clear why the effect of graphite addition differs depending on the apparent density of the lead powder used, but the apparent density of lead powder is 1.1 (] /-
There was no doubt that the addition of anisotropic graphite could significantly improve battery performance if the amount was below. In this example, the results were shown when 1% of highly anisotropic graphite was added, but it should be noted that similar results were obtained in the range of 0.3 to 2.0%. Further, as shown in this example, the particle size of the graphite is preferably 100 to 1200 μm, and most preferably 350 to 1200 μm.
発明の効果
以上詳述したように本発明によればクラッド式正極板の
放電性能を著しく向上させることができ本発明の工業的
価値は大である。Effects of the Invention As detailed above, according to the present invention, the discharge performance of a clad positive electrode plate can be significantly improved, and the present invention has great industrial value.
Claims (1)
と見掛け密度が１．１ｇ／ｃｍ＾３以下の鉛粉との混合
物を充填することを特徴とするクラッド式鉛電池正極板
。1. A positive electrode plate for a clad lead-acid battery, characterized in that it is filled with a mixture of highly anisotropic graphite having a particle size of 100 to 1200 μm and lead powder having an apparent density of 1.1 g/cm^3 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60106464A JPS61264675A (en) | 1985-05-17 | 1985-05-17 | Positive plate of clad type lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60106464A JPS61264675A (en) | 1985-05-17 | 1985-05-17 | Positive plate of clad type lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61264675A true JPS61264675A (en) | 1986-11-22 |
Family
ID=14434284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60106464A Pending JPS61264675A (en) | 1985-05-17 | 1985-05-17 | Positive plate of clad type lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61264675A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2305772A (en) * | 1995-09-28 | 1997-04-16 | Kenichi Fujita | Addition of carbon suspension obtained by electrolytic oxidation of carbon to lead-acid battery electrolyte activates electrodes when charged |
| JP2010102914A (en) * | 2008-10-23 | 2010-05-06 | Shin Kobe Electric Mach Co Ltd | Method for manufacturing clad type positive electrode plate |
| CN103785825A (en) * | 2014-01-16 | 2014-05-14 | 超威电源有限公司 | Technology for producing lead powder of lead-acid storage batteries |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598469A (en) * | 1979-01-19 | 1980-07-26 | Japan Storage Battery Co Ltd | Pasted lead storage battery plate |
| JPS5914267A (en) * | 1982-07-14 | 1984-01-25 | Japan Storage Battery Co Ltd | Clad positive plate for lead storage battery |
-
1985
- 1985-05-17 JP JP60106464A patent/JPS61264675A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598469A (en) * | 1979-01-19 | 1980-07-26 | Japan Storage Battery Co Ltd | Pasted lead storage battery plate |
| JPS5914267A (en) * | 1982-07-14 | 1984-01-25 | Japan Storage Battery Co Ltd | Clad positive plate for lead storage battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2305772A (en) * | 1995-09-28 | 1997-04-16 | Kenichi Fujita | Addition of carbon suspension obtained by electrolytic oxidation of carbon to lead-acid battery electrolyte activates electrodes when charged |
| GB2305772B (en) * | 1995-09-28 | 1998-09-16 | Kenichi Fujita | Electrolyte solution and lead-acid batteries using the same |
| JP2010102914A (en) * | 2008-10-23 | 2010-05-06 | Shin Kobe Electric Mach Co Ltd | Method for manufacturing clad type positive electrode plate |
| CN103785825A (en) * | 2014-01-16 | 2014-05-14 | 超威电源有限公司 | Technology for producing lead powder of lead-acid storage batteries |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2001229920A (en) | Method of manufacturing sealed lead acid battery | |
| JP2003123760A (en) | Negative electrode for lead-acid battery | |
| JPS61264675A (en) | Positive plate of clad type lead-acid battery | |
| JPH042060A (en) | Sealed type lead acid battery | |
| JP2001155723A (en) | Sealed lead acid storage battery and method of fabricating it | |
| JP3575145B2 (en) | Negative electrode plate for lead storage battery and method for producing the same | |
| JP2002100347A (en) | Lead-acid battery | |
| JP2001210320A (en) | Lead-acid storage battery and its manufacturing method | |
| JPH10302783A (en) | Sealed lead-acid battery and manufacture thereof | |
| JPH10270028A (en) | Positive electrode plate for lead-acid battery | |
| JP2001185151A (en) | Sealed lead acid battery | |
| JPS58197662A (en) | Pasted positive electrode for lead storage battery | |
| JP2004055309A (en) | Manufacturing method of pasty active material for positive electrodes, and lead storage battery using it | |
| JPH1040907A (en) | Manufacture of positive electrode plate for lead-acid battery | |
| JP2949839B2 (en) | Negative gas absorption sealed lead-acid battery | |
| JPH11162456A (en) | Lead-acid battery | |
| JP2958790B2 (en) | Sealed lead-acid battery | |
| JPS59173961A (en) | Organic electrolyte secondary battery | |
| JP3038995B2 (en) | Lead storage battery | |
| JPH0837008A (en) | Paste type lead-acid battery | |
| JPH07147160A (en) | Lead-acid battery | |
| JPS61114471A (en) | Positive plate of clad type lead storage battery | |
| JP2004355942A (en) | Lead-acid storage battery and its manufacturing method | |
| JPH10172559A (en) | Nickel active material for alkaline storage battery and manufacture thereof | |
| JP3582068B2 (en) | How to charge lead storage batteries |