JP2932490B2 - Lead storage battery - Google Patents
Lead storage batteryInfo
- Publication number
- JP2932490B2 JP2932490B2 JP1083473A JP8347389A JP2932490B2 JP 2932490 B2 JP2932490 B2 JP 2932490B2 JP 1083473 A JP1083473 A JP 1083473A JP 8347389 A JP8347389 A JP 8347389A JP 2932490 B2 JP2932490 B2 JP 2932490B2
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- storage battery
- electrode
- lead
- battery
- 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
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 11
- 229910052787 antimony Inorganic materials 0.000 claims description 9
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 9
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 229910001882 dioxygen Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/68—Selection of materials for use in lead-acid accumulators
- H01M4/685—Lead alloys
-
- 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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、充電時に正極から発生する酸素ガスを負極
で吸収する、いわゆる負極吸収式鉛蓄電池の改良に関す
るものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called negative electrode absorption type lead-acid battery in which oxygen gas generated from a positive electrode during charging is absorbed by a negative electrode.
従来の技術 負極吸収式鉛蓄電池は、充電時あるいは自己放電時に
正極から発生する酸素ガスを負極活物質である金属鉛に
吸収させ、ガス発生による電池内圧の上昇を防止すると
ともに、電解液の減少を抑える機能を有している。この
機能を達成するため格子体，極板群接合部及び極柱の合
金を選定するにあたって、 ・ 水素過電圧が高く、電池を充電した時水素を発生し
にくく、 ・ 添加した元素が負極の各部材に移動して自己放電を
起こすことがない、 ということを考慮して、合金組成を決めている。2. Description of the Related Art A negative-electrode absorption lead-acid battery absorbs oxygen gas generated from the positive electrode during charge or self-discharge into metallic lead, which is a negative electrode active material, thereby preventing the internal pressure of the battery from increasing due to gas generation and reducing the electrolyte. It has the function of suppressing When selecting an alloy for the grid body, the electrode assembly, and the electrode column to achieve this function, the hydrogen overvoltage is high, and it is difficult for hydrogen to be generated when the battery is charged. The alloy composition is determined in consideration of the fact that self-discharge does not occur due to the movement of the alloy.
このように負極吸収式鉛蓄電池は使用時に電解液の減
少が少ないため、面倒な補水作業が不要となり、蓄電池
を密閉化できるようになった。さらに密閉化することに
より、使用中に有害なガスを蓄電池外に排出することが
なくなり、室内においても手軽に蓄電池を使用できるよ
うになった。As described above, since the negative electrode absorption type lead-acid battery has a small decrease in the electrolyte during use, troublesome water refilling work is not required, and the battery can be hermetically sealed. By further sealing, no harmful gas is discharged to the outside of the storage battery during use, and the storage battery can be easily used indoors.
発明が解決しようとする課題 しかしながら、従来の負極吸収式鉛蓄電池を使用中、
特にスタンバイ使用など常時充電されているような使用
状況の中で、負極極柱，負極格子体，負極格子耳部、あ
るいは負極極板群接合部において急激な腐食が進行し、
上記部材の一部が破断する現象があった。負極吸収式鉛
蓄電池内は、使用時においては常に正極から発生する酸
素ガスが充満した状態にある。Problems to be Solved by the Invention However, while using a conventional negative electrode absorption type lead-acid battery,
In particular, in a situation where the battery is constantly charged, such as in standby use, rapid corrosion progresses at the negative electrode pole, the negative electrode grid, the negative electrode grid lugs, or the negative electrode plate group junction,
There was a phenomenon that a part of the above member was broken. The inside of the negative-electrode absorption type lead-acid battery is always filled with oxygen gas generated from the positive electrode during use.
従って酸素ガスを吸収する機能をもたせた負極活物質
はもちろん、負極格子体，極板群接合部及び極柱も常に
酸素に暴露されており、このために負極部材の腐食，破
断が起こるものと想定される。この想定に基づき、種々
検討が行われてきたがはっきりとした原因を特定するに
は至っていなかった。Therefore, not only the negative electrode active material having the function of absorbing oxygen gas, but also the negative electrode grid, the electrode plate junction, and the electrode column are constantly exposed to oxygen, which may cause corrosion and breakage of the negative electrode member. is assumed. Various studies have been made based on this assumption, but no clear cause has been identified.
従来の負極吸収式鉛蓄電池で、スタンバイ使用中に負
極部材の腐食が進行し、部材の破断に至った蓄電池を詳
細に解析したところ、腐食を受けた箇所，部分において
は腐食を受けなかった箇所に比べて、意図して添加して
はいないアンチモンが多く含まれていることがわかっ
た。さらに、アンチモンの量がふえるに従い腐食量は加
速的にふえ、従来は微量として特に影響がないとされて
きたアンチモンの量を管理することが、負極部材の腐食
を防止するために重要であることがわかった。In a conventional negative-electrode absorption-type lead-acid battery, the corrosion of the negative electrode member progressed during standby use, and a detailed analysis of the storage battery that resulted in the breakage of the member revealed that the part and the part that were corroded were not corroded. It was found that antimony, which was not intentionally added, was contained in a larger amount. Furthermore, as the amount of antimony increases, the amount of corrosion increases at an accelerated rate, and it is important to control the amount of antimony, which was previously considered to have no particular effect as a trace amount, in order to prevent corrosion of the negative electrode member. I understood.
課題を解決するための手段 極板耳部を含む負極格子体、負極の極板群接合部およ
び負極の極柱を構成する鉛合金中のアンチモン含有量を
30ppm以下とすることにより前記欠点を改善したもので
ある。Means for Solving the Problems The negative electrode grid body including the electrode plate ears, the antimony content in the lead alloy constituting the negative electrode plate group joint and the negative electrode pole are determined.
The above disadvantages are improved by setting the content to 30 ppm or less.
作用 負極格子体，極板群接合部及び極柱を構成する鉛主体
金属に不純物として含まれるアンチモン量を30ppm以下
に抑えることにより、負極吸収式鉛蓄電池使用中の過酷
な酸素雰囲気にあっても、これら部材は腐食を受けにく
く、破断に至ることはない。従って負極吸収式鉛蓄電池
の信頼性を著しく向上することができる。Function By reducing the amount of antimony contained as an impurity in the lead-based metal that constitutes the negative electrode grid, the electrode group junction and the electrode pole to 30 ppm or less, even under severe oxygen atmosphere during use of the negative electrode absorption type lead-acid battery, However, these members are less susceptible to corrosion and do not break. Therefore, the reliability of the negative electrode absorption type lead storage battery can be remarkably improved.
実施例 以下、本発明の実施例を説明する。Examples Hereinafter, examples of the present invention will be described.
負極吸収式鉛蓄電池の構成を第１図に示す。図中１は
負極極板群接合部、２は負極格子体、３は極板耳部、４
は負極極柱、５は正極板、６はＵ字状セパレータであ
る。FIG. 1 shows the structure of the negative electrode absorption type lead storage battery. In the figure, reference numeral 1 denotes a negative electrode plate group joining portion, 2 denotes a negative electrode grid body, 3 denotes an electrode plate ear portion,
Denotes a negative electrode pole, 5 denotes a positive electrode plate, and 6 denotes a U-shaped separator.
本発明の効果を明らかにするため、負極極板群接合部
１を構成する鉛中に含まれるアンチモンの量を150ppm,7
0ppm,50ppm,30ppm,5ppmと変えて、この部分が腐食によ
って破断するまでの時間を測定した。試験には電圧12V,
容量24Ahの陰極吸収式鉛蓄電池を使用し13.8Vの定電圧
充電を行いながら、１カ月毎に蓄電池容量及び内部抵抗
の変化を測定した。なお、雰囲気温度は40℃である。In order to clarify the effect of the present invention, the amount of antimony contained in the lead constituting the negative electrode plate group joining portion 1 was set to 150 ppm, 7 ppm.
The time until this portion was broken by corrosion was measured by changing the amount to 0 ppm, 50 ppm, 30 ppm, and 5 ppm. 12V for the test,
Using a cathode absorption type lead-acid battery having a capacity of 24 Ah, changes in the battery capacity and internal resistance were measured every month while charging at a constant voltage of 13.8 V. The ambient temperature is 40 ° C.
上記の結果を第２図A,Bに示す。 The above results are shown in FIGS. 2A and 2B.
第２図からわかるとおり内部抵抗の急激な上昇がアン
チモン量150ppmでは６カ月で、70ppmでは３カ月、50ppm
では１カ月で起きている。これらの蓄電池を分解して内
部抵抗上昇の原因を調べたところ、負極極板群接合部の
腐食による破断であった。しかしながら30ppm,5ppmでは
18カ月を経過した段階でも急激な内部抵抗の上昇は見ら
れない。ただ容量は低下している。その原因を調べたと
ころ、正極格子体の伸びによる短絡が原因であり、負極
極板群接合部には腐食破断は全く見られなかった。As can be seen from Fig. 2, the rapid rise in internal resistance is 6 months at an antimony content of 150ppm, 3 months at 70ppm, and 50ppm.
Then it's been a month. When these batteries were disassembled and the cause of the increase in internal resistance was examined, it was found that the batteries were broken due to corrosion at the junction of the negative electrode plate group. However, at 30ppm and 5ppm
Even after 18 months, there is no sharp increase in internal resistance. However, the capacity is decreasing. Examination of the cause revealed that the short-circuit was caused by the elongation of the positive electrode grid, and no corrosion rupture was observed at the junction of the negative electrode plate group.
発明の効果 このように本発明による負極吸収式鉛蓄電池は負極格
子体，極板群接合部及び極柱を構成する鉛中に30ppmを
こえるアンチモンを含まないため、蓄電池使用中に上記
部材が腐食，破断することがなく、また負極吸収式鉛蓄
電池にとって最も重要な機能である電解液の減少，自己
放電量も少なくできる。従って負極吸収式鉛蓄電池の信
頼性を著しく向上させる効果がある。Effect of the Invention As described above, the negative electrode absorption type lead-acid battery according to the present invention does not contain more than 30 ppm of antimony in the lead constituting the negative electrode grid body, the electrode plate junction, and the electrode pole, so that the above-described members are corroded during use of the battery. In addition, it is possible to reduce the amount of electrolyte and the amount of self-discharge, which are the most important functions for the negative electrode absorption type lead storage battery. Accordingly, there is an effect that the reliability of the negative electrode absorption type lead storage battery is significantly improved.
第１図は本発明の実施例による負極吸収式鉛蓄電池の一
部断面図であり、第２図A,Bは本発明の効果を確認する
ために行った40℃雰囲気における連続充電試験の結果を
示す図である。 １……極板群接合部、２……負極格子体、３……極板
耳、４……極柱、５……正極板、６……セパレータ。FIG. 1 is a partial cross-sectional view of a negative-electrode absorption lead-acid battery according to an embodiment of the present invention. FIGS. 2A and 2B are results of a continuous charging test in a 40 ° C. atmosphere performed to confirm the effects of the present invention. FIG. DESCRIPTION OF SYMBOLS 1 ... Joint part of electrode group, 2 ... Negative electrode grid member, 3 ... Electrode lug, 4 ... Electrode pole, 5 ... Positive electrode plate, 6 ... Separator.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福田 貞夫 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭61−165956（ＪＰ，Ａ) 特開 昭60−257065（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Sadao Fukuda 1006 Kazuma Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-61-165956 (JP, A) JP-A-60-160 257065 (JP, A)
Claims (1)
柱を構成する鉛合金中のアンチモン含有量を30ppm以下
としたことを特徴とする負極吸収式鉛蓄電池。1. A negative electrode absorption type lead-acid battery, wherein the content of antimony in a lead alloy constituting a negative electrode grid, a negative electrode plate group junction and a negative electrode pole is 30 ppm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083473A JP2932490B2 (en) | 1989-03-31 | 1989-03-31 | Lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083473A JP2932490B2 (en) | 1989-03-31 | 1989-03-31 | Lead storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02262252A JPH02262252A (en) | 1990-10-25 |
| JP2932490B2 true JP2932490B2 (en) | 1999-08-09 |
Family
ID=13803433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1083473A Expired - Lifetime JP2932490B2 (en) | 1989-03-31 | 1989-03-31 | Lead storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2932490B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629362A (en) * | 2021-08-10 | 2021-11-09 | 巨江电源科技有限公司 | Tab welding structure, storage battery assembly and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257065A (en) * | 1984-06-04 | 1985-12-18 | Nippon Telegr & Teleph Corp <Ntt> | Cell post for lead storage battery |
| JPS61165956A (en) * | 1985-01-16 | 1986-07-26 | Matsushita Electric Ind Co Ltd | sealed lead acid battery |
-
1989
- 1989-03-31 JP JP1083473A patent/JP2932490B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02262252A (en) | 1990-10-25 |
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