JPH04155772A - Manufacture of lead acid battery - Google Patents
Manufacture of lead acid batteryInfo
- Publication number
- JPH04155772A JPH04155772A JP2281186A JP28118690A JPH04155772A JP H04155772 A JPH04155772 A JP H04155772A JP 2281186 A JP2281186 A JP 2281186A JP 28118690 A JP28118690 A JP 28118690A JP H04155772 A JPH04155772 A JP H04155772A
- Authority
- JP
- Japan
- Prior art keywords
- alkaline
- alkaline earth
- sulfuric acid
- ion
- battery electrolyte
- 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.)
- Granted
Links
- 239000002253 acid Substances 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000003513 alkali Substances 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract 2
- 239000008151 electrolyte solution Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims description 6
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 14
- 150000002500 ions Chemical class 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- -1 sulfate compound Chemical class 0.000 abstract description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 2
- 150000001455 metallic ions Chemical class 0.000 abstract 2
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 7
- 238000011084 recovery Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 241000894433 Turbo <genus> Species 0.000 description 1
- 229910052936 alkali metal sulfate Inorganic materials 0.000 description 1
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は過放電放置後の充電回復特性を改善するための
硫酸電解中に少なくともアルカリまたはアルカリ土類金
属イオンのいずれかを短時間に一定量、電解液中に存在
させる鉛蓄電池の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to the application of at least alkali or alkaline earth metal ions in a fixed amount in a short period of time during sulfuric acid electrolysis to improve charge recovery characteristics after being left overdischarged. The present invention relates to a method for producing a lead-acid battery that is present in an electrolyte.
従来の技術
近年、ツインカム、ターボなどの搭載によりエンジンル
ームの高密度化高温化、またエアコン、カーオディオな
どによる車両のエレクトロニクス化により、蓄電池につ
いても高温での寿命特性の改善および深い充放電時寿命
の改善が要望されてきた。こうした背景の中、同一寸法
形状のなかで極板構成を増加させた、いわゆる高性能タ
イプの電池構成、正極活物質量の増加が検討されてきた
。また従来は、板状のバルブあるいはパルプとガラスマ
ットを併用したセパレータが用いられてきたが、高温下
での使用や深い充放電時寿命を改善するためと、極板枚
数を増加させるため、袋状の薄いセパレータを用いるよ
うになってきた。こうした中で、電解液である硫酸量Ａ
と正極活物質量ＢのＡ／Ｈの比率が小さ（なってきた。Conventional technology In recent years, engine compartments have become denser and hotter due to the installation of twin cams, turbos, etc., and the use of electronics in vehicles such as air conditioners and car audio systems has led to improvements in the life characteristics of storage batteries at high temperatures and longer lifespans during charging and discharging. Improvements have been requested. Against this background, studies have been conducted on so-called high-performance type battery configurations in which the number of electrode plates is increased within the same size and shape, and in which the amount of positive electrode active material is increased. Conventionally, plate-shaped bulbs or separators made of a combination of pulp and glass mats have been used, but in order to improve lifespan during high-temperature use and deep charging/discharging, and to increase the number of electrode plates, bags are being used. In recent years, thin separators have been used. Under these circumstances, the amount of sulfuric acid, which is the electrolytic solution, is
and the ratio of A/H of the amount B of positive electrode active material is small (becoming).
したがって、過放電後には硫酸イオン濃度がほとんどな
くなり電解液が中性領域になってしまうことがある。Therefore, after overdischarge, the sulfate ion concentration may be almost gone and the electrolyte may be in a neutral region.
また、セパレータの厚みが薄くなってきていることによ
り、こうした中性領域において、鉛イオンの溶解度が著
しく増加し、針状鉛の析出が発生しやす（なり、セパレ
ータを貫通してショートしてしまうこともある。従来か
ら、過放電放置後の充電回復性の改善を目的として、硫
酸電解液中にアルカリイオンまたは、アルカリ土類金属
イオンを電解液中に存在させる手段として硫酸アルカリ
金属化合物あるいは硫酸アルカリ土類金属化合物のいず
れかを５ｇ／ｌ程度の濃度のなるように硫酸中に投入し
、撹拌棒などによるの攪拌により硫酸中で溶解させる方
法が行われてきた。In addition, as separators become thinner, the solubility of lead ions increases significantly in these neutral regions, making it easier for needle-shaped lead to precipitate (which can penetrate the separator and cause a short circuit). Conventionally, sulfuric acid alkali metal compounds or sulfuric acid have been used as a means of adding alkali ions or alkaline earth metal ions to the sulfuric acid electrolyte for the purpose of improving charge recovery after overdischarging. A method has been used in which an alkaline earth metal compound is added to sulfuric acid at a concentration of about 5 g/l and dissolved in the sulfuric acid by stirring with a stirring rod or the like.
イオンまたはアルカリ土類金属イオンの濃度は、従来の
常識を上回る濃度を存在させる必要があり、従来の硫酸
アルカリ金属化合物または、硫酸アルカリ土類金属化合
物を単純に溶解させる方法では完全に溶解させるまでに
多くの時間を必要とし、円滑に電解液を供給するために
は大きな調整槽あるいは多くの調整槽が必要であり、こ
れが、製造上の大きな問題であった。The concentration of ions or alkaline earth metal ions needs to be higher than conventional wisdom, and the conventional method of simply dissolving an alkali metal sulfate compound or an alkaline earth metal sulfate compound is difficult to achieve until complete dissolution. It takes a lot of time to process the electrolyte, and in order to smoothly supply the electrolyte, a large adjustment tank or many adjustment tanks are required, which is a major problem in manufacturing.
本発明はこのような課題を解決するもので、短時間で硫
酸電解液中に一定の濃度のアルカリイオンあるいはアル
カリ土類金属イオンのいずれかを存在させることができ
る電解液の調製方法を提供この課題を解決するために本
発明は、アルカリ金属水酸化物またはアルカリ土類金属
水酸化物のいずれかを電解液中に加え、中和熱により短
時間にアルカリ金属イオンまたは、アルカリ土類金属イ
オンのいずれかを硫酸化物として電解液中に存在させる
ようにしたものである。The present invention solves these problems by providing a method for preparing an electrolytic solution that allows a constant concentration of either alkali ions or alkaline earth metal ions to be present in a sulfuric acid electrolytic solution in a short period of time. In order to solve the problem, the present invention adds either an alkali metal hydroxide or an alkaline earth metal hydroxide to an electrolytic solution, and uses heat of neutralization to quickly convert alkali metal ions or alkaline earth metal ions into an electrolytic solution. Either of these is present in the electrolytic solution as a sulfate.
作用
この製造方法により、アルカリ金属水酸化物またはアル
カリ土類金属水酸化物のいずれかを硫酸電解液中に加え
ることにより、強アルカリと強酸の中和反応により即座
に反応し、硫酸アルカリ化合物または、硫酸アルカリ土
類化合物を生成する。Action By this production method, by adding either an alkali metal hydroxide or an alkaline earth metal hydroxide to a sulfuric acid electrolyte, it reacts immediately by a neutralization reaction between a strong alkali and a strong acid, and the alkali sulfate compound or , producing alkaline earth sulfate compounds.
このとき、中和によりアルカリ金属水酸化物またはアル
カリ土類水酸化物を硫酸中に溶解させ、アルカリイオン
または、アルカリ土類金属イオンとして存在させること
ができる。At this time, the alkali metal hydroxide or alkaline earth metal hydroxide can be dissolved in sulfuric acid by neutralization, and can be made to exist as an alkali ion or an alkaline earth metal ion.
例えば、ＫＯＨを硫酸中に投入するとＫＯＨ＋Ｈ２ＳＯ
４→に２ＳＯ４＋Ｈ２０に即座に反応する。For example, when KOH is put into sulfuric acid, KOH + H2SO
4 → immediately reacts with 2SO4 + H20.
このとき生成したに２ＳＯ４は２０℃で１９．５ｇ／１
００ｇ（硫酸）までは硫酸中でＫ とｓｏ４”−に電離
している。この反応は即座に進行するため、極めて短時
間で過放電放置後の充電回復性に必要な濃度のアルカリ
金属あるいはアルカリ土類金属イオンを電解液中に存在
させることができることとなる。The amount of 2SO4 generated at this time was 19.5g/1 at 20℃
Up to 00 g (sulfuric acid) is ionized into K and SO4''- in sulfuric acid. This reaction proceeds immediately, so it can be used in an extremely short time to reach the concentration of alkali metal or alkali required for charge recovery after overdischarge. This means that earth metal ions can be present in the electrolyte.
実施例
本発明の一実施例の鉛蓄電池の製造方法によるに゛イオ
ンの溶解性を第１図に示す。第１図は完全溶解するまで
の時間とに＋の溶解度の関係を示す。２０℃、比重１．
２４０ （３２，８５％）の希硫酸１０ｋｇ中にに２５
０４５００ｇ加え棒状の撹拌棒で攪拌し完全溶解するま
での時間が約３５分かかった。これをＣとする。硫酸比
重１．２７２（３６，０％）の硫酸９．８９ ｋ ｇ中
にに２０Ｈ２８１ｇを投入した。EXAMPLE FIG. 1 shows the solubility of ions in a method for manufacturing a lead-acid battery according to an example of the present invention. FIG. 1 shows the relationship between the time required for complete dissolution and the positive solubility. 20℃, specific gravity 1.
240 (32,85%) in 10 kg of dilute sulfuric acid
It took about 35 minutes to completely dissolve the mixture by adding 0.4,500 g and stirring with a rod-shaped stirring rod. Let this be C. 281 g of 20H was put into 9.89 kg of sulfuric acid with a sulfuric acid specific gravity of 1.272 (36.0%).
２ Ｋ ＯＨ＋ Ｈ２Ｓ Ｏ４→に２ＳＯ４＋Ｈ２０反
応は即の結果より本発明により、非常に短時間で過放電
放置後の充電回復性に必要なアルカリイオンあるいはア
ルカリ土類金属イオンを硫酸電解液中に存在させること
ができる。なお、加えるアルカリがＫＯＨの水溶液であ
っても本発明と同様の効果があることはいうまでもない
。2K OH+ H2S O4→2SO4+H20 reaction is an immediate result, and according to the present invention, alkali ions or alkaline earth metal ions necessary for charge recovery after overdischarge can be present in the sulfuric acid electrolyte in a very short time. be able to. It goes without saying that even if the alkali to be added is an aqueous KOH solution, the same effects as the present invention can be obtained.
発明の効果
以上の実施例の説明からもあきらかなように、本発明に
よれば、短時間で硫酸電解液中に過放電放置後の充電回
復性に必要な任意の濃度のアルカリ金属あるいはアルカ
リ土類金属イオンを存在させることかでき、従来、電解
液調整に必要であった調整槽を設置する必要がなくなり
、鉛蓄電池製造方法の改良におおいに役立った。Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, an arbitrary concentration of alkali metal or alkaline earth necessary for charge recovery after being left over-discharged in a sulfuric acid electrolyte for a short period of time can be obtained. This method made it possible to allow similar metal ions to be present, eliminating the need to install a regulating tank that was conventionally required for electrolyte adjustment, and greatly helped improve the lead-acid battery manufacturing method.
第１図は、本発明の一実施例の鉛蓄電池の製造法による
に＋イオン溶解性を示す図である。
代理人の氏名 弁理士 小鍜治 明 ほか２名第１図
峰１”＋ ＜ｈ）FIG. 1 is a diagram showing the solubility of + ions according to the manufacturing method of a lead-acid battery according to an embodiment of the present invention. Name of agent: Patent attorney Akira Okaji and two others Figure 1 Peak 1”+ <h)
Claims (2)
酸化物、あるいは、前記水酸化物の水溶液のいずれかを
希硫酸からなる電解液中に加え、硫酸化アルカリ化合物
または、硫酸化アルカリ土類化合物を生成し、そのとき
発生する中和熱により希硫酸からなる電解液中に前記硫
酸化アルカリ化合物または前記硫酸化アルカリ土類化合
物を溶解させて電解液を調製する鉛蓄電池の製造方法。(1) Add either an alkali metal hydroxide, an alkaline earth metal hydroxide, or an aqueous solution of the above hydroxide to an electrolytic solution consisting of dilute sulfuric acid, and add a sulfated alkali compound or a sulfated alkaline earth metal hydroxide A method for manufacturing a lead-acid battery, which comprises producing an electrolytic solution by producing a compound and dissolving the sulfated alkaline compound or the sulfated alkaline earth compound in an electrolytic solution made of dilute sulfuric acid using the neutralization heat generated at the time.
類金属水酸化物の等量和をｂとし、硫酸の等量をｃとし
たとき、ｃ＞ａ＋ｂである請求項１記載の鉛蓄電池の製
造法。(2) The method according to claim 1, wherein c>a+b, where a is the equivalent sum of alkali metal hydroxides, b is the equivalent sum of alkaline earth metal hydroxides, and c is the equivalent sum of sulfuric acid. Manufacturing method for lead-acid batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2281186A JP2982278B2 (en) | 1990-10-18 | 1990-10-18 | Manufacturing method of lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2281186A JP2982278B2 (en) | 1990-10-18 | 1990-10-18 | Manufacturing method of lead storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04155772A true JPH04155772A (en) | 1992-05-28 |
| JP2982278B2 JP2982278B2 (en) | 1999-11-22 |
Family
ID=17635548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2281186A Expired - Fee Related JP2982278B2 (en) | 1990-10-18 | 1990-10-18 | Manufacturing method of lead storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2982278B2 (en) |
-
1990
- 1990-10-18 JP JP2281186A patent/JP2982278B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2982278B2 (en) | 1999-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |