JPH0750616B2 - Lead acid battery - Google Patents
Lead acid batteryInfo
- Publication number
- JPH0750616B2 JPH0750616B2 JP60259121A JP25912185A JPH0750616B2 JP H0750616 B2 JPH0750616 B2 JP H0750616B2 JP 60259121 A JP60259121 A JP 60259121A JP 25912185 A JP25912185 A JP 25912185A JP H0750616 B2 JPH0750616 B2 JP H0750616B2
- Authority
- JP
- Japan
- Prior art keywords
- active material
- per cell
- acid battery
- lead
- positive electrode
- 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.)
- Expired - Lifetime
Links
- 239000002253 acid Substances 0.000 title claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 239000008151 electrolyte solution Substances 0.000 claims description 7
- 239000007773 negative electrode material Substances 0.000 claims description 5
- 239000007774 positive electrode material Substances 0.000 claims description 5
- 230000009969 flowable effect Effects 0.000 claims 1
- 239000011149 active material Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 230000019635 sulfation Effects 0.000 description 4
- 238000005670 sulfation reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は鉛蓄電池の改良に関するものである。Description: FIELD OF THE INVENTION The present invention relates to improvements in lead acid batteries.
従来技術とその問題点 近年、鉛蓄電池は小型軽量化並びに高性能化が進み、高
率放電性能を向上させるために極板間距離を小さくした
り、限られたスペース内により多くの活物質を入れる必
要に迫られて電解液量を減少させた結果、１セル当りの
活物質量に対する１セル当りの硫酸量の割合が小さくな
ってきている。すなわち、１セル当りの電解液中の硫酸
の総重量Waと、１セル当りの正極活物質と負極活物質の
総重量Wbとの比率Wa/Wbは0.27〜0.30になるように設定
されていた。このような電池のうち、正極の放電容量が
負極のそれより小さい、いわゆる正極制限の電池では、
長期間過放電のまゝ放置しておくと電解液の比重が低下
し、部分的に水に近くなり活物質を充電しても元に戻り
難い結晶性硫酸鉛になる現象（以下、サルフェーション
という）が発生し、充電しても元の状態に容量が回復し
ないという欠点があった。Conventional technology and its problems In recent years, lead-acid batteries have been made smaller and lighter and have higher performance, and the distance between the electrode plates has been reduced to improve the high rate discharge performance, and more active materials have been provided in a limited space. As a result of reducing the amount of the electrolytic solution due to the necessity of adding the same, the ratio of the amount of sulfuric acid per cell to the amount of active material per cell is becoming smaller. That is, the ratio Wa / Wb of the total weight Wa of sulfuric acid in the electrolytic solution per cell to the total weight Wb of the positive electrode active material and the negative electrode active material per cell was set to 0.27 to 0.30. . Among such batteries, the discharge capacity of the positive electrode is smaller than that of the negative electrode, so-called positive electrode limited battery,
If left unattended for a long period of over-discharge, the specific gravity of the electrolyte will decrease, and it will become crystalline lead sulfate that is difficult to return to its original state even if the active material is charged and becomes close to water (hereinafter referred to as sulfation). ) Occurred, the capacity was not restored to the original state even after charging.
発明の目的 本発明は上記欠点を解消したもので、過放電又は長期放
置を行なってもサルフェーションが発生しない鉛蓄電池
を提供するものである。OBJECT OF THE INVENTION The present invention solves the above-mentioned drawbacks and provides a lead-acid battery in which sulfation does not occur even when over-discharged or left for a long time.
発明の構成 本発明は、流動する電解液を有し、極板間距離が0.6〜
0.8mmの鉛蓄電池において、正極の放電容量を負極のそ
れより小さくし、１セル当りの電解液中の硫酸の総重量
Waと、１セル当りの正極活物質と負極活物質の総重量Wb
との比率Wa/Wbを0.31以上に設定した鉛蓄電池である。Structure of the Invention The present invention has a flowing electrolyte, the distance between the electrode plate is 0.6 ~
In a 0.8 mm lead-acid battery, the discharge capacity of the positive electrode was made smaller than that of the negative electrode, and the total weight of sulfuric acid in the electrolyte solution per cell
Wa and total weight Wb of positive electrode active material and negative electrode active material per cell
Is a lead acid battery with a ratio Wa / Wb set to 0.31 or more.
実施例 本発明の一実施例を第１図に基いて詳述する。Embodiment An embodiment of the present invention will be described in detail with reference to FIG.
第１図は10HR定格容量が20AHの鉛蓄電池の１セル当りの
硫酸量と活物質量の比率Wa/Wbと、電池性能回復率との
関係図である。ここでWaは１セル当りの電解液中の硫酸
(H2SO4)の総重量、Waは１セル当りの正極活物質(PbO2)
と負極活物質（Pb）の総重量を表わす。そして、正極活
物質の重量を負極活物質の重量の1.15倍以下に設定して
いる。すなわち、正極制限の電池にしている。また、電
池性能回復率は10HR定格容量に対する過放電放置後に2A
×20Hで充電後の10HR容量の割合（％）で表わしてい
る。なお、鉛蓄電池の極板間には薄型のセパレータとガ
ラスマットが挿入されており、極板間距離を0.66mmに設
定している。なお、極板間距離を0.6〜0.8mmの範囲に設
定することにより、高率放電性能を改善できる。第１図
において、Ａは過放電後30日間放置後の結果、Ｂは過放
電後15日間放置後の結果である。第１図より明らかな如
く、比率Wa/Wbを0.31以上に設定すれば電池性能回復率
はA,B共に100％に達している。また、Wa/Wbが0.28以下
の電池はA,B共にほとんど容量が回復せず、同電池を解
体調査した結果、サルフェーションが発生していること
がわかった。FIG. 1 is a relationship diagram between the ratio Wa / Wb of the amount of sulfuric acid and the amount of active material per cell of a lead acid battery with a rated capacity of 20 AH for 10 HR and the battery performance recovery rate. Here, Wa is sulfuric acid in the electrolyte solution per cell.
The total weight of (H 2 SO 4 ), Wa is the positive electrode active material (PbO 2 ) per cell.
And the total weight of the negative electrode active material (Pb). The weight of the positive electrode active material is set to 1.15 times or less the weight of the negative electrode active material. That is, the battery is limited to the positive electrode. In addition, the battery performance recovery rate is 2A after being left overdischarged for the rated capacity of 10HR.
It is expressed as a percentage (%) of 10 HR capacity after charging at × 20H. A thin separator and a glass mat are inserted between the electrodes of the lead storage battery, and the distance between the electrodes is set to 0.66 mm. The high rate discharge performance can be improved by setting the distance between the electrode plates in the range of 0.6 to 0.8 mm. In FIG. 1, A is the result after being left for 30 days after overdischarging, and B is the result after being left for 15 days after being overdischarged. As is clear from FIG. 1, when the ratio Wa / Wb is set to 0.31 or more, the battery performance recovery rate reaches 100% for both A and B. In addition, the batteries with a Wa / Wb of 0.28 or less showed almost no capacity recovery in both A and B, and as a result of disassembling and investigating the batteries, it was found that sulfation occurred.
発明の効果 本発明は上記の如く、流動する電解液を有し、極板間距
離が0.6〜0.8mmであって、正極制限の鉛蓄電池におい
て、１セル当りの硫酸量と活物質量との比率Wa/Wbを0.3
1以上に設定するという簡単な手段により過放電又は長
期放置に起因するサルフェーションの発生を防止すると
共に高率放電性能を向上させることができ、その工業的
価値は大である。EFFECTS OF THE INVENTION As described above, the present invention has a flowing electrolyte solution, a distance between electrode plates of 0.6 to 0.8 mm, and in a positive electrode limited lead-acid battery, the amount of sulfuric acid and the amount of active material per cell are Ratio Wa / Wb to 0.3
By a simple means of setting it to 1 or more, it is possible to prevent the occurrence of sulfation due to over-discharge or long-term storage and to improve the high rate discharge performance, and its industrial value is great.
第１図は１セル当りの硫酸量と活物質量の比率Wa/Wbと
電池性能回復率との関係図である。FIG. 1 is a relationship diagram between the ratio Wa / Wb of the amount of sulfuric acid and the amount of active material per cell and the battery performance recovery rate.
Claims (1)
〜0.8mmの鉛蓄電池において、正極の放電容量を負極の
それより小さくし、１セル当りの電解液中の硫酸の総重
量Waと、１セル当りの正極活物質と負極活物質の総重量
Wbとの比率Wa/Wbを0.31以上に設定したことを特徴とす
る鉛蓄電池。1. A flowable electrolyte solution having a distance between electrode plates of 0.6.
In a lead-acid battery of ~ 0.8 mm, the discharge capacity of the positive electrode is made smaller than that of the negative electrode, and the total weight Wa of the sulfuric acid in the electrolytic solution per cell and the total weight of the positive electrode active material and the negative electrode active material per cell.
Lead acid battery characterized in that the ratio Wa / Wb with Wb is set to 0.31 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60259121A JPH0750616B2 (en) | 1985-11-18 | 1985-11-18 | Lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60259121A JPH0750616B2 (en) | 1985-11-18 | 1985-11-18 | Lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62119875A JPS62119875A (en) | 1987-06-01 |
| JPH0750616B2 true JPH0750616B2 (en) | 1995-05-31 |
Family
ID=17329604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60259121A Expired - Lifetime JPH0750616B2 (en) | 1985-11-18 | 1985-11-18 | Lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750616B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008130516A (en) * | 2006-11-24 | 2008-06-05 | Furukawa Battery Co Ltd:The | Liquid lead-acid storage battery |
| WO2014076883A1 (en) * | 2012-11-13 | 2014-05-22 | パナソニック株式会社 | Lead-acid cell |
| EP2960978B1 (en) | 2013-02-22 | 2018-01-10 | GS Yuasa International Ltd. | Flooded lead-acid battery |
| CN110036526A (en) * | 2016-12-07 | 2019-07-19 | 日立化成株式会社 | Lead storage battery |
| JP6982593B2 (en) * | 2019-04-05 | 2021-12-17 | 古河電池株式会社 | Lead-acid battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5827625B2 (en) * | 1976-03-01 | 1983-06-10 | 日本電池株式会社 | sealed lead acid battery |
-
1985
- 1985-11-18 JP JP60259121A patent/JPH0750616B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62119875A (en) | 1987-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |