JPH0416908B2 - - Google Patents

Info

Publication number
JPH0416908B2
JPH0416908B2 JP57209807A JP20980782A JPH0416908B2 JP H0416908 B2 JPH0416908 B2 JP H0416908B2 JP 57209807 A JP57209807 A JP 57209807A JP 20980782 A JP20980782 A JP 20980782A JP H0416908 B2 JPH0416908 B2 JP H0416908B2
Authority
JP
Japan
Prior art keywords
gas absorption
cathode plate
plate
sealed lead
acid 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
Application number
JP57209807A
Other languages
Japanese (ja)
Other versions
JPS5999682A (en
Inventor
Satoshi Matsubayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Corp
Original Assignee
Shin Kobe Electric Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shin Kobe Electric Machinery Co Ltd filed Critical Shin Kobe Electric Machinery Co Ltd
Priority to JP57209807A priority Critical patent/JPS5999682A/en
Publication of JPS5999682A publication Critical patent/JPS5999682A/en
Publication of JPH0416908B2 publication Critical patent/JPH0416908B2/ja
Granted legal-status Critical Current

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
    • H01M10/34—Gastight accumulators
    • H01M10/342—Gastight lead 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
    • 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

  • 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】 本発明は密閉形鉛蓄電池に関し、ガス吸収効率
の向上を目的とするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sealed lead-acid battery and aims to improve gas absorption efficiency.

近年、ポータブルVTR用電源や非常用電源の
需要の増加に伴ない、漏液せず且つ補水不要であ
るという特長をもつシリカを希硫酸で非流動化さ
せたいわゆるゲル式及びマツト状ガラス細繊維に
希硫酸をしみ込ませたいわゆるリテーナ式の密閉
形鉛蓄電池が開発されてきた。 In recent years, with the increase in demand for power supplies for portable VTRs and emergency power supplies, so-called gel type and matte glass fine fibers made by making silica non-fluidized with dilute sulfuric acid, which has the characteristics of not leaking and requiring no rehydration, have been developed. A so-called cage-type sealed lead-acid battery has been developed, which is impregnated with dilute sulfuric acid.

この種の密閉形鉛蓄電池では次式に示すように
陽極板で発生した酸素ガスは陰極板の鉛と電解液
との三相界面で還元されて水に戻ると考えられて
いる。 In this type of sealed lead-acid battery, oxygen gas generated at the anode plate is reduced to water at the three-phase interface between lead on the cathode plate and the electrolyte, as shown in the following equation.

2Pb＋O2＋2H2SO4→2PbSO4＋2H2O 即ち、過充電すると陽極板から発生する酸素ガ
スは陰極板で吸収され、陰極板ではこれによつて
生成した硫酸鉛（PbSO4）の還元がおこることに
なるのでもはや水素ガスは発生せず密閉化できる
ことになる。 2Pb＋O 2 +2H 2 SO 4 →2PbSO 4 +2H 2 O In other words, when overcharged, the oxygen gas generated from the anode plate is absorbed by the cathode plate, and the resulting lead sulfate (PbSO 4 ) is reduced at the cathode plate. As a result, hydrogen gas is no longer generated and it can be sealed.

ガス吸収に関してリテーナ式とゲル式とを比較
すると、ゲル式では過充電により電解液中の水が
ある程度分解され、陽・陰極板間に存在する離し
よう液が少なくなつてから充分なガス吸収反応が
起こるのに対し、リテーナ式ではゲル式に比べる
と容易に酸素ガスが陰極板へ達するのでガス吸収
反応が起こり易いといわれている。 Comparing the retainer type and gel type in terms of gas absorption, in the gel type, water in the electrolyte is decomposed to some extent due to overcharging, and a sufficient gas absorption reaction occurs only after the releasing liquid existing between the anode and cathode plates decreases. However, in the retainer type, oxygen gas reaches the cathode plate more easily than in the gel type, so gas absorption reactions are said to occur more easily.

このリテーナ式密閉形鉛蓄電池のガス吸収効率
は、0.2CA（Ｃは公称容量の数値を示す。）の過充
電電流値において100％を示すものの、それ以上
に電流を大きくするとこの効率は著しく低下し、
0.5CA以上の場合には約20％となつてガス吸収が
充分であるとは言えなかつた。 The gas absorption efficiency of this cage-type sealed lead-acid battery is 100% at an overcharge current value of 0.2CA (C indicates the nominal capacity), but this efficiency decreases significantly when the current is increased beyond that. death,
In the case of 0.5 CA or more, the gas absorption was about 20%, and it could not be said that the gas absorption was sufficient.

本発明は上記ガス吸収効率を向上させるもの
で、極板の縦断面において、下辺が上辺より長い
陽極板と下辺が上辺より短い陰極板を組合せたこ
とを特徴とするものである。 The present invention improves the above-mentioned gas absorption efficiency, and is characterized by a combination of an anode plate whose lower side is longer than the upper side and a cathode plate whose lower side is shorter than the upper side in the vertical cross section of the electrode plate.

本発明の一実施例を説明する。 An embodiment of the present invention will be described.

第１図に示すように縦断面がほぼ三角形状の陽
極板１と、縦断面がほぼ逆三角形状の陰極板２と
をリテーナ３を介して組み合わせることにより、
陽極板１を陰極板２によつて覆い被さるようにな
るので、過充電時において陽極板から発生する酸
素ガスがより容易に陰極板へ達することになりガ
ス吸収効率を向上させることができる。第２図は
従来の密閉形鉛蓄電池を示している。第３図は本
発明品、従来品ともにPE2―12型で20時間率放電
容量が2.4AHの密閉形鉛蓄電池においてガス吸収
効率を比較したもので、本発明品は過充電電流
0.5CAにおいてもガス吸収効率は100％を示し、
従来品の20％に比べガス吸収性能を著しく向上さ
せることができる。 As shown in FIG. 1, by combining an anode plate 1 with a substantially triangular longitudinal section and a cathode plate 2 with a substantially inverted triangular longitudinal section via a retainer 3,
Since the anode plate 1 is covered by the cathode plate 2, oxygen gas generated from the anode plate during overcharging can reach the cathode plate more easily, thereby improving gas absorption efficiency. FIG. 2 shows a conventional sealed lead acid battery. Figure 3 compares the gas absorption efficiency of the inventive product and the conventional product in PE2-12 type sealed lead-acid batteries with a 20-hour rate discharge capacity of 2.4AH.
Gas absorption efficiency is 100% even at 0.5CA,
Gas absorption performance can be significantly improved compared to 20% of conventional products.

上述のように本発明の密閉形鉛蓄電池はガス吸
収性能に優れ、実用的価値大なるものである。 As described above, the sealed lead acid battery of the present invention has excellent gas absorption performance and is of great practical value.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明における極板群構成の一実施例
を示す断面図、第２図は従来品の極板群構成を示
す断面図、第３図はガス吸収効率と過充電電流と
の関係を示す曲線図である。 １は陽極板、２は陰極板、３はリテーナ。 Fig. 1 is a sectional view showing an embodiment of the electrode plate group configuration according to the present invention, Fig. 2 is a sectional view showing the electrode plate group structure of a conventional product, and Fig. 3 is the relationship between gas absorption efficiency and overcharge current. FIG. 1 is an anode plate, 2 is a cathode plate, and 3 is a retainer.

Claims (1)

【特許請求の範囲】[Claims] １ 極板の縦断面において、下辺が上辺より長い
陽極板と下辺が上辺より短い陰極板を組み合わせ
たことを特徴とする密閉形鉛蓄電池。1. A sealed lead-acid battery characterized by a combination of an anode plate whose lower side is longer than the upper side and a cathode plate whose lower side is shorter than the upper side in the vertical cross section of the electrode plate.
JP57209807A 1982-11-30 1982-11-30 Closed-type lead storage battery Granted JPS5999682A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57209807A JPS5999682A (en) 1982-11-30 1982-11-30 Closed-type lead storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57209807A JPS5999682A (en) 1982-11-30 1982-11-30 Closed-type lead storage battery

Publications (2)

Publication Number Publication Date
JPS5999682A JPS5999682A (en) 1984-06-08
JPH0416908B2 true JPH0416908B2 (en) 1992-03-25

Family

ID=16578923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57209807A Granted JPS5999682A (en) 1982-11-30 1982-11-30 Closed-type lead storage battery

Country Status (1)

Country Link
JP (1) JPS5999682A (en)

Also Published As

Publication number Publication date
JPS5999682A (en) 1984-06-08

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