JPH0760695B2 - Sealed lead acid battery - Google Patents
Sealed lead acid batteryInfo
- Publication number
- JPH0760695B2 JPH0760695B2 JP62079971A JP7997187A JPH0760695B2 JP H0760695 B2 JPH0760695 B2 JP H0760695B2 JP 62079971 A JP62079971 A JP 62079971A JP 7997187 A JP7997187 A JP 7997187A JP H0760695 B2 JPH0760695 B2 JP H0760695B2
- Authority
- JP
- Japan
- Prior art keywords
- acid battery
- lead
- sealed lead
- positive electrode
- electrolytic solution
- 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
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 本発明は密閉形鉛蓄電池の改良に関するものである。TECHNICAL FIELD The present invention relates to an improvement of a sealed lead-acid battery.
従来技術とその問題点 近年、自己放電と充電末期におけるガス発生を防止する
ために、特開昭49-133841号公報に記載の如く、鉛−ア
ンチモン系合金製の格子体を用いた正極板と鉛−カルシ
ウム系合金製の格子体を用いた負極板とを備えた鉛蓄電
池が用いられるようになった。しかし、この構造を、充
放電反応に必要な最低限の電解液を有し、該電解液が極
板中と微細な繊維からなるセパレータ中とにほとんど保
持され、実質的に非流動化された電解液を有する密閉形
鉛蓄電池に採用すると下記の欠点がある。Prior art and its problems In recent years, in order to prevent self-discharge and gas generation at the end of charging, as described in JP-A-49-133841, a positive electrode plate using a lead-antimony alloy lattice is used. Lead acid batteries provided with a negative electrode plate using a grid body made of a lead-calcium alloy have come to be used. However, this structure has a minimum amount of electrolytic solution necessary for charge / discharge reaction, and the electrolytic solution is substantially retained in the electrode plate and in the separator made of fine fibers and is substantially non-fluidized. When used in a sealed lead-acid battery containing an electrolyte, it has the following drawbacks.
即ち、この密閉形鉛蓄電池は充放電に必要な最低限の電
解液しか有しないため、過放電した時、電解液中にSO4
根がなくなり、正極活物質と正極格子体の間に水を介し
て、自己放電反応（１） 3PbO2＋2Pb＋2H2O→Pb3O4＋2PbO −（１） を生じ、格子体周辺部に高抵抗の腐食層（PbO）を生成
する。このため過放電放置後、定電流充電での充電受入
性能が悪い。In other words, this sealed lead-acid battery has the minimum amount of electrolyte necessary for charging and discharging, so when overdischarged, SO 4
The root disappears, and a self-discharge reaction (1) 3PbO 2 + 2Pb + 2H 2 O → Pb 3 O 4 + 2PbO − (1) occurs through water between the positive electrode active material and the positive electrode lattice, resulting in high resistance around the lattice. Corrosion layer (PbO) is generated. For this reason, the charge acceptance performance in constant current charging after leaving for over discharge is poor.
発明の目的 本発明は上記欠点を解消したもので、過放電放置後の定
電流充電時の充電受入性能を改善した密閉形鉛蓄電池を
提供するものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks and provides a sealed lead-acid battery with improved charge acceptance performance during constant-current charging after being left over-discharged.
発明の構成 本発明は、電解液が正。負極板中とセパレータ中とにほ
とんど保持され、実質的に非流動化された電解液を有す
る密閉形鉛蓄電池において、２〜５重量％のアンチモン
を含有する鉛−アンチモン系合金製の格子体を用いた正
極板と鉛−カルシウム系合金製の格子体を用いた負極板
とを備え、電解液のSO4根量と正極活物質量との相関々
係比を0.4以上としたことを特徴とする密閉形鉛蓄電池
である。電解液のSO4根量と正極活物質量との相関々係
比は次のように定義する。Configuration of the Invention In the present invention, the electrolytic solution is positive. In a sealed lead-acid battery having an electrolytic solution that is substantially non-fluidized and is mostly retained in a negative electrode plate and a separator, a grid body made of a lead-antimony alloy containing 2 to 5% by weight of antimony is used. It comprises a positive electrode plate used and a negative electrode plate using a lead-calcium alloy grid, characterized in that the correlation between the SO 4 root amount of the electrolytic solution and the positive electrode active material amount is 0.4 or more. It is a sealed lead acid battery. The correlation coefficient between the SO 4 root content of the electrolyte and the positive electrode active material content is defined as follows.
x:H2SO4のSO4根のg/AH当りの化学反応量（3.657g/AH） y:正極活物質量のg/AH当りの化学反応量（4.463g/AH） k:比例定数（鉛−アンチモン系合金製の格子体を用いた
正極板を使用した本発明の場合、実験的に求めるとｋ＝
0.5である。） それ故に（２）にこれらの数字を代入すると、 ｋ＝0.5×（3.657/4.463） ≒0.4となる。 x: Chemical reaction amount of SO 4 root of H 2 SO 4 per g / AH (3.657 g / AH) y: Chemical reaction amount of positive electrode active material per g / AH (4.463 g / AH) k: Proportional constant (In the case of the present invention using a positive electrode plate using a grid of a lead-antimony alloy, k =
It is 0.5. ) Therefore, substituting these numbers into (2) gives k = 0.5 × (3.657 / 4.463) ≈0.4.
正極板用格子体合金としてアンチモン合金を使用し、且
つ上記相関々係比を0.4以上と高くすること、即ち実質
的には設計上電解液比重を高くすることにより、 5PbO2＋2Sb＋6H2SO4→(SbO2)2SO4＋5PbSO4＋6H2O −
（３） の反応を従来以上に多くさせる。これにより格子体周辺
部にSO4を多く保有させる事と、且つ格子体周辺部に(Sb
O2)2SO4を生成させ鉛の電解液中への溶解速度を減少さ
せると共に（１）式の反応速度を遅らせることができ
る。5PbO 2 + 2Sb + 6H 2 SO 4 → by using antimony alloy as the grid alloy for the positive electrode plate and increasing the correlation coefficient to 0.4 or more, that is, by substantially increasing the specific gravity of the electrolytic solution by design. (SbO 2) 2 SO 4 + 5PbSO 4 + 6H 2 O -
The reaction of (3) is increased more than ever before. As a result, a large amount of SO 4 is retained in the periphery of the lattice, and (Sb
O 2 ) 2 SO 4 can be generated to reduce the dissolution rate of lead in the electrolytic solution and to delay the reaction rate of the formula (1).
実施例 本発明の実施例を説明する。本発明密閉形鉛蓄電池は、
２〜５重量％のアンチモンを含有する鉛−アンチモン系
合金製の格子体を用いた正極板と鉛−カルシウム系合金
製の格子体を用いた負極板とを備え、電解液は正。負極
板中と微細な繊維よりなるセパレータ中とにほとんど保
有されている。従って、電解液は実質的に非流動化され
ている。また、上記電解液のSO4根量と正極活物質量と
の前記相関々係比を0.4以上に設定している。Example An example of the present invention will be described. The sealed lead-acid battery of the present invention,
A positive electrode plate using a grid body made of a lead-antimony alloy containing 2 to 5% by weight of antimony and a negative electrode plate using a grid body made of a lead-calcium alloy are used, and the electrolytic solution is positive. It is mostly held in the negative electrode plate and in the separator made of fine fibers. Therefore, the electrolytic solution is substantially non-fluidized. Further, the correlation coefficient ratio between the SO 4 root amount of the electrolytic solution and the positive electrode active material amount is set to 0.4 or more.
次に本発明密閉形鉛蓄電池と従来の密閉形鉛蓄電池とを
比較する。第１表は本発明密閉形鉛蓄電池と従来の密閉
形鉛蓄電池の充電回復性の結果を示したものである。試
験条件は以下のとおりである。Next, the sealed lead acid battery of the present invention will be compared with the conventional sealed lead acid battery. Table 1 shows the results of charge recovery of the sealed lead acid battery of the present invention and the conventional sealed lead acid battery. The test conditions are as follows.
（イ） 供試電池:3AH/10HRの密閉形鉛蓄電池 （ロ） 電池は完全放電後、更に10W負荷を接続し放電
する。(B) Test battery: 3AH / 10HR sealed lead-acid battery (b) After complete discharge, connect a 10W load and discharge.
（ハ） 放置温度は40℃±３℃とする。(C) Leave temperature shall be 40 ° C ± 3 ° C.
（ニ） 回復充電は0.3Aの電流で20時間充電する。(D) For recovery charge, charge with a current of 0.3 A for 20 hours.
（ホ） データは供試電池５ケのうちの最大値及び最小
値を示す。(E) The data show the maximum and minimum values of the five test batteries.
第１表より明らかな通り、本発明品は従来品に比較して
充電回復性が非常に優れている。アンチモン含有量を、
２〜５重量％に限定したのは、表１の結果と次の理由か
らである。それはSbが２％より低いと充放電寿命が短
く、Sbが５％を越えると自己放電量が多くなるためであ
る。As is clear from Table 1, the product of the present invention has much better charge recovery than the conventional product. Antimony content,
The reason why the amount is limited to 2 to 5% by weight is the result of Table 1 and the following reasons. This is because if Sb is less than 2%, the charge / discharge life is short, and if Sb exceeds 5%, the amount of self-discharge increases.
発明の効果 本発明はその特許請求の範囲に記載した通りの構成であ
るため、以下の効果がある。 EFFECTS OF THE INVENTION Since the present invention is configured as described in the claims, it has the following effects.
（１） 過放電放置しても充電すれば完全に容量が回復
する。(1) If the battery is charged even after being left overdischarged, the capacity is completely restored.
（２） 相関々係比を0.4以上とする事により、初期の
諸特性、例えば低率放電持続時間、高率放電持続時間等
が良くなる。(2) By setting the correlation coefficient to 0.4 or more, various initial characteristics such as low rate discharge duration and high rate discharge duration are improved.
Claims (1)
ほとんど保持され、実質的に非流動化された電解液を有
する密閉形鉛蓄電池において、２〜５重量％のアンチモ
ンを含有する鉛−アンチモン系合金製の格子体を用いた
正極板と鉛−カルシウム系合金製の格子体を用いた負極
板とを備え、電解液のSO4根量と正極活物質量との相関
々係比を0.4以上としたことを特徴とする密閉形鉛蓄電
池。1. A sealed lead-acid battery having an electrolyte that is substantially non-fluidized, in which the electrolyte is mostly retained in the positive and negative electrode plates and the separator, and contains 2 to 5% by weight of antimony. A positive electrode plate using a grid body made of a lead-antimony alloy and a negative plate using a grid body made of a lead-calcium alloy are provided, and the correlation between the SO 4 root amount of the electrolytic solution and the positive electrode active material amount is related. A sealed lead-acid battery characterized by a ratio of 0.4 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62079971A JPH0760695B2 (en) | 1987-03-31 | 1987-03-31 | Sealed lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62079971A JPH0760695B2 (en) | 1987-03-31 | 1987-03-31 | Sealed lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63245869A JPS63245869A (en) | 1988-10-12 |
| JPH0760695B2 true JPH0760695B2 (en) | 1995-06-28 |
Family
ID=13705208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62079971A Expired - Lifetime JPH0760695B2 (en) | 1987-03-31 | 1987-03-31 | Sealed lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0760695B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514510B2 (en) * | 1973-04-26 | 1980-04-16 | ||
| JPS5916279A (en) * | 1982-07-16 | 1984-01-27 | Sanyo Electric Co Ltd | Lead storage battery |
-
1987
- 1987-03-31 JP JP62079971A patent/JPH0760695B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63245869A (en) | 1988-10-12 |
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