JPH04155760A - Battery jar formation of lead-acid battery - Google Patents
Battery jar formation of lead-acid batteryInfo
- Publication number
- JPH04155760A JPH04155760A JP2281191A JP28119190A JPH04155760A JP H04155760 A JPH04155760 A JP H04155760A JP 2281191 A JP2281191 A JP 2281191A JP 28119190 A JP28119190 A JP 28119190A JP H04155760 A JPH04155760 A JP H04155760A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- sulfuric acid
- formation
- battery jar
- 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.)
- Pending
Links
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 20
- 239000002253 acid Substances 0.000 title claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 64
- 230000005484 gravity Effects 0.000 claims abstract description 17
- 239000003792 electrolyte Substances 0.000 claims abstract description 14
- 229910052936 alkali metal sulfate Inorganic materials 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005868 electrolysis reaction Methods 0.000 claims description 2
- 239000011149 active material Substances 0.000 abstract description 9
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract 2
- 238000004090 dissolution Methods 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 11
- 230000007935 neutral effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 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
Landscapes
- 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、アルカリ金属硫酸塩を電解液中に含む鉛蓄電
池の電槽化成方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for forming a battery case for a lead-acid battery containing an alkali metal sulfate in the electrolyte.
従来の技術
鉛蓄電池の電槽化成方法は、電槽化成前に比重１．１８
０以上の希硫酸を注液し、化成中の電気分解による電解
液の濃縮や極板中より生成する硫酸量を考慮して、その
注液量を定めて電槽化成を行い、電槽化成終了後の電解
液比重が所定の比重となるようにする方法、また電槽化
成で消費する電気量を合理化するために、比重１．０５
０以上１．１８０以下の低比重の希硫酸を電槽化成前に
注液し、電槽化成終了後に高比重の硫酸を加え、再充電
により電池内部の電解液を攪拌して所定の電解液比重に
調整する方法などがある。また電池を過放電した時に発
生するデンドライトによる両極間のショートを防止する
ために加えられるアルカリ金属硫酸塩は、上記のいずれ
の電槽化成方法においても電槽化成前に注液する希硫酸
中に含ませて加える方法が一般的であった。The conventional method for forming a battery case for a lead-acid battery has a specific gravity of 1.18 before forming the case.
0 or more dilute sulfuric acid is injected, and the amount of injected solution is determined by taking into consideration the concentration of the electrolytic solution due to electrolysis during formation and the amount of sulfuric acid generated from the electrode plate, and then the container formation is performed. In order to make sure that the specific gravity of the electrolyte after completion becomes a specified specific gravity, and in order to rationalize the amount of electricity consumed in battery cell formation, the specific gravity is 1.05.
Inject dilute sulfuric acid with a low specific gravity of 0 to 1.180 before forming the battery, add sulfuric acid with a high specific gravity after forming the battery, and stir the electrolyte inside the battery by recharging to form the specified electrolyte. There are ways to adjust the specific gravity. In addition, alkali metal sulfate, which is added to prevent short circuits between the two electrodes due to dendrites that occur when the battery is over-discharged, is added to the dilute sulfuric acid that is poured before forming the battery in any of the above battery forming methods. The common method was to add it by adding it.
発明が解決しようとする課題
電槽化成の初期においては、電槽化成前に注液した希硫
酸と極板活物質とが反応して、その希硫酸の濃度が低下
することとなる。特に、電槽化成前に注液する希硫酸の
比重が１．１８０以下で、その希硫酸中にアルカリ金属
硫酸塩が含まれている場合には、硫酸濃度が中性領域か
らアルカリ領域近くまで低下する。その結果極板活物質
が溶解し、脱落するという現象が起き、電槽化成後の電
池寿命が短くなるという大きな課題があった。Problems to be Solved by the Invention In the early stage of battery cell formation, the dilute sulfuric acid injected before the battery cell formation reacts with the electrode plate active material, and the concentration of the dilute sulfuric acid decreases. In particular, if the specific gravity of the dilute sulfuric acid injected before forming the battery container is 1.180 or less and the dilute sulfuric acid contains alkali metal sulfates, the sulfuric acid concentration may fall from the neutral region to near the alkaline region. descend. As a result, the electrode plate active material melts and falls off, posing a major problem in that the battery life after forming the battery case is shortened.
課題を解決するための手段
本発明はこのような課題を解決するもので、電槽化成前
に注液する希硫酸の比重が１．１８０Ｊ２下で、その希
硫酸中にアルカリ金属硫酸塩を含Ｊせた場合の極板活物
質が溶解し脱落すること（：よって寿命が短くなるとい
う課題を解決するもｑである。Means for Solving the Problems The present invention is intended to solve the above problems, and is based on a method in which the dilute sulfuric acid injected before forming a battery has a specific gravity of 1.180 J2, and the dilute sulfuric acid contains an alkali metal sulfate. This solves the problem that when the electrode plate active material melts and falls off (thus shortening the lifespan).
その具体的な手段として、電槽化成前に注液する希硫酸
の比重としてｌ’、 ０５０以上１．１８０１下を用い
、電槽化成終了後電池を反転し脱液４行った後、電池内
部にアルカリ金属硫酸塩を加λた高濃度硫酸を再注液し
、その後再充電をして電池内部に残存する低濃度電解液
と加えた高濃度価酸とを攪拌し最終の電解液とするよう
にしたもＣである。As a specific method, the specific gravity of the dilute sulfuric acid injected before battery formation is 1', 050 or more and 1.1801 or less. Highly concentrated sulfuric acid with alkali metal sulfate added to the battery is re-injected, and then the battery is recharged, and the low-concentration electrolyte remaining inside the battery and the added high-concentration acid are stirred to form the final electrolyte. This is also C.
本発明はこのような課題を解決するもので、媚槽化成時
に極板活物質の脱落・溶解が起こらず、電池寿命の優れ
た電槽化成方法を提供することをイ 目的とするも
のである。The present invention solves these problems, and aims to provide a method for forming a battery cell that does not cause the electrode plate active material to fall off or dissolve during cell forming, and has an excellent battery life. .
作用
従来のアルカリ金属硫酸塩を加えた比重１．１８０ｔ
以下の希硫酸を電槽化成前に注液する場合は、もえ
ともとの希硫酸濃度が低い上にアルカリ金属硫酸塩を
含んでいるため、極板活物質との反応によって容易に中
性領域あるいはアルカリ領域になりや） すくなる。Action: Specific gravity including conventional alkali metal sulfate: 1.180t
When injecting the following dilute sulfuric acid before forming the battery, please
Since the original concentration of dilute sulfuric acid is low and it also contains alkali metal sulfate, it easily becomes neutral or alkaline due to reaction with the electrode plate active material.
これに対して本発明の方法では、アルカリ金属−硫酸塩
を電槽化成前に加えるのではなく、電槽化（成終了後に
電池を反転して脱液した後、高濃度硫酸中にアルカリ金
属硫酸塩を加え電池内部に注液することにより、そのア
ルカリ金属硫酸塩による中和現象を除去し、電解液のｐ
Ｈが中性領域あるｉ いはアルカリ領域まで低下する
のを防止し、化成） 中に極板から活物質が脱落する
のを防止することにより電池寿命を改善するものである
。On the other hand, in the method of the present invention, the alkali metal sulfate is not added before forming the battery cell, but after forming the cell (inverting the battery to remove liquid after forming the cell), the alkali metal sulfate is added to the high concentration sulfuric acid. By adding sulfate and injecting it into the battery, the neutralization phenomenon caused by the alkali metal sulfate is removed and the p of the electrolyte is reduced.
This improves battery life by preventing H from dropping to the neutral or alkaline range and preventing the active material from falling off the electrode plate during chemical formation.
実施例
以下に本発明の一実施例について説明する。まず５ＨＲ
容量で４８Ａｈの電池を作成し、つぎにアルカリ金属硫
酸塩を３０ｇ／ｅ加えた比重１．１８０の希硫酸と、ア
ルカリ金属硫酸塩を加えていない同じ比重１．１８０の
希硫酸を用意し、それぞれを電池に注液しＩＯＡにて１
６Ｈの充電を行った。なお、アルカリ金属硫酸塩を加え
た希硫酸を注液した電池をＡとし、加えていない希硫酸
を注液した電池をＢとした。その後、Ａ。EXAMPLE An example of the present invention will be described below. First 5HR
A battery with a capacity of 48 Ah was created, and then dilute sulfuric acid with a specific gravity of 1.180 to which 30 g/e of alkali metal sulfate was added and dilute sulfuric acid with a specific gravity of 1.180 without the addition of alkali metal sulfate were prepared. Pour each into the battery and use IOA for 1
Charged for 6 hours. Note that a battery in which dilute sulfuric acid to which an alkali metal sulfate was added was injected was designated as A, and a battery in which dilute sulfuric acid was injected without addition was designated as B. After that, A.
Ｂとも電解液の比重が１．２８５になるように、Ａにつ
いてはそのまま高濃度硫酸を注液し再充電による攪拌を
行った。Ｂについては電槽化成終了後脱液を行い、アル
カリ金属硫酸塩がＡと同量になるように加えた高濃度硫
酸を注液し、Ａと同様に再充電による攪拌を行った。そ
して以上のように作成した電池を用いて、電槽化成前に
注液する希硫酸中へのアルカリ金属硫酸塩の有無が電池
寿命にどのように影響するか調べるため、充放電サイク
ル寿命試験を行った結果を表に示す。なお、充放電サイ
クル試験の件は、放電を９．６Ａにて電池の端子電圧が
１０．５Ｖまで低下するまで行い、充電は９．６Ａにて
放電容量の１２０％まで行い、放電時の容量が５ＨＲ容
量の５０％となった時点を充放電サイクル試験による電
池寿命とした。Highly concentrated sulfuric acid was injected into the electrolyte A as it was, and stirring was performed while recharging so that the specific gravity of the electrolyte solution in both B was 1.285. For B, the liquid was removed after the cell formation was completed, and high concentration sulfuric acid containing the same amount of alkali metal sulfate as in A was injected into the tank, followed by recharging and stirring in the same manner as in A. Using the battery created as described above, we conducted a charge/discharge cycle life test to investigate how the presence or absence of alkali metal sulfate in the dilute sulfuric acid injected before forming the battery case affects battery life. The results are shown in the table. Regarding the charge/discharge cycle test, discharge is performed at 9.6 A until the terminal voltage of the battery drops to 10.5 V, and charging is performed at 9.6 A until 120% of the discharge capacity. The time when the battery became 50% of the 5HR capacity was determined as the battery life by a charge/discharge cycle test.
表
表の結果より明らかなように、電槽化成前に注液する希
硫酸中にアルカリ金属硫酸塩を加えたＡと比較し、アル
カリ金属硫酸塩を加えずに注液したＢはサイクル寿命が
Ａの約２倍となっており、電槽化成を行う時のアルカリ
金属硫酸塩が電池寿命に及ぼす影響は明確で、本発明の
電槽化成後にアルカリ金属硫酸塩を加えることにより、
化成時の極板活物質の溶解・脱落を防止することができ
る。As is clear from the results in the table, compared to A, in which alkali metal sulfate was added to the dilute sulfuric acid injected before forming the battery, B, in which alkali metal sulfate was injected without adding alkali metal sulfate, had a shorter cycle life. It is about twice that of A, and it is clear that the alkali metal sulfate during battery cell formation has a clear effect on battery life.
It is possible to prevent the electrode plate active material from dissolving and falling off during chemical formation.
発明の効果
以上の実施例の説明からも明らかなように本発明によれ
ば、従来の電槽化成前に注液する希硫酸の比重として１
．１８０以下を用い、その希硫酸中にアルカリ金属硫酸
塩を加えた場合の電槽化成方法の大きな課題であった、
電槽化成初期の極板活物質の溶解脱落という問題を解決
し、電池の寿命特性を向上させるとともに電槽化成の効
率化を図ることができる。Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, the specific gravity of the dilute sulfuric acid injected before forming the conventional battery container is 1.
．． 180 or less, and the addition of an alkali metal sulfate to the dilute sulfuric acid was a major problem in the method of forming a battery case.
It is possible to solve the problem of melting and falling off of the electrode plate active material at the initial stage of battery cell formation, improve battery life characteristics, and improve the efficiency of battery case formation.
Claims (1)
成方法において、比重１．０５０以上１．１８０以下の
希硫酸を電槽化成前に電槽に注液し、電槽化成終了後に
電解液を電槽から脱液し、アルカリ金属硫酸塩を加えた
高硫酸濃度の電解液を再び注液し、その後再充電する鉛
蓄電池の電槽化成方法。In a method for forming a battery cell for a lead-acid battery containing an alkali metal sulfate in the electrolyte, dilute sulfuric acid with a specific gravity of 1.050 or more and 1.180 or less is poured into the cell before forming the cell, and electrolysis is performed after forming the cell. A lead-acid battery cell formation method in which the liquid is drained from the battery cell, an electrolyte with a high sulfuric acid concentration containing an alkali metal sulfate is re-injected, and then recharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2281191A JPH04155760A (en) | 1990-10-18 | 1990-10-18 | Battery jar formation of lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2281191A JPH04155760A (en) | 1990-10-18 | 1990-10-18 | Battery jar formation of lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04155760A true JPH04155760A (en) | 1992-05-28 |
Family
ID=17635618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2281191A Pending JPH04155760A (en) | 1990-10-18 | 1990-10-18 | Battery jar formation of lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04155760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579281A (en) * | 2017-08-31 | 2018-01-12 | 北京军秀咨询有限公司 | A kind of formation method of high-capacity power lithium iron phosphate battery |
-
1990
- 1990-10-18 JP JP2281191A patent/JPH04155760A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579281A (en) * | 2017-08-31 | 2018-01-12 | 北京军秀咨询有限公司 | A kind of formation method of high-capacity power lithium iron phosphate battery |
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