JPH02281558A - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JPH02281558A JPH02281558A JP1102139A JP10213989A JPH02281558A JP H02281558 A JPH02281558 A JP H02281558A JP 1102139 A JP1102139 A JP 1102139A JP 10213989 A JP10213989 A JP 10213989A JP H02281558 A JPH02281558 A JP H02281558A
- Authority
- JP
- Japan
- Prior art keywords
- lead
- active material
- acid battery
- expanded
- strands
- 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.)
- Granted
Links
- 239000002253 acid Substances 0.000 title claims description 21
- 239000011149 active material Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 12
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 7
- 239000007773 negative electrode material Substances 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 abstract 1
- 239000002142 lead-calcium alloy Substances 0.000 abstract 1
- 210000005069 ears Anatomy 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003860 storage Methods 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)
- Cell Electrode Carriers And Collectors (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
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に関するもので、特にコンピュ
ータ、通信機器等のバッファフグ電源として、或は建物
醇の非常用電源として使用される大容量の背の高い密閉
形鉛蓄電池に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sealed lead-acid battery, particularly a large battery used as a buffer power source for computers, communication equipment, etc., or as an emergency power source for buildings. It concerns a sealed lead-acid battery with a high capacity.
密閉形鉛蓄電池は通常、充電終期に正極で発生する酸素
ガスを負極に移動させ、負極活物質と反応させてこれを
消費すると共に負極板を放電状１１にして負極からの水
素ガスの発生を抑制するいわゆる「０２サイクμ」を使
って密閉化している。Sealed lead-acid batteries normally move oxygen gas generated at the positive electrode at the end of charging to the negative electrode, react with the negative electrode active material, consume it, and set the negative electrode plate in a discharge state 11 to prevent the generation of hydrogen gas from the negative electrode. It is sealed using the so-called "02 cycle μ" which suppresses the air.
一方、格子の製造方法としては従来の鋳造法によるもの
の他、鉛又は鉛合金の連続ｙ）の一部を網目状に展開拡
張してここに活物質を充填し、非展開部分を集電部とす
るエキスパンド法が実用化されている。この方法は生産
性が高く、極板に占める格子の＃Ｊ合を小さく、活物質
の−ｊ合を大きくできるので容量を増加させることが可
能であり、自動車用鉛蓄電池を中心に密閉形鉛蓄電池に
も使われている。従来実用化されている極板は第１図に
示すようにその巾（Ｐｗ）が４０〜１５０ｔｌｌ、高さ
（６）が７０〜１４０簡程度であり、この程度の大きさ
であれば、自動車用のように遊離した電解液が沢山存在
する鉛蓄電池の極板としては致命的な欠陥はなかった。On the other hand, as a manufacturing method for the lattice, in addition to the conventional casting method, a part of the continuous lead or lead alloy (y) is developed and expanded into a mesh shape, and the active material is filled there, and the non-developed part is used as the current collector. The expansion method has been put into practical use. This method has high productivity, and it is possible to increase the capacity by reducing the #J ratio of the grid on the electrode plate and increasing the -J ratio of the active material. It is also used in storage batteries. As shown in Figure 1, the conventionally used electrode plates have a width (Pw) of 40 to 150 tll and a height (6) of 70 to 140 tll. There were no fatal defects in the electrode plates of a lead-acid battery, which has a large amount of free electrolyte, such as in batteries.
しかしながら密閉形鉛蓄電池は遊離した電解液が存在し
ないため、極群の熱容量が小さく、高率での充・放電で
格子が溶断し、最悪の場合には爆発することさえある。However, since there is no free electrolyte in sealed lead-acid batteries, the heat capacity of the electrode group is small, and the lattice can melt due to high charging and discharging rates, and in the worst case, it can even explode.
この防止のための１つの方法として、特開昭６４−１９
６７４号公報に記載されているように、格子耳部の単位
断面積当りの活物質の理論容量を２．５ムし１以下とす
ることが有効である。しかし、これだけでは不充分であ
り、電池が説って短絡された場合、網目部を形成してい
るストランド、特に集電部材直下のストランドが溶断す
ることがあった。しかも本発明の密閉形鉛蓄電池のよう
に大答量になると、極板中は約１５０鴫程度で従来のも
のと余り変りがないにも拘らず、高さが２５０〜５Ｑ（
］ｌｌｌｌＩＣもなる。従って上部にある非展開の集電
部直下のストランドには極めて大きな電流が流れるため
その安全性に問題が生じている。As one method for preventing this, JP-A-64-19
As described in Japanese Patent No. 674, it is effective to set the theoretical capacity of the active material per unit cross-sectional area of the lattice ears to 2.5 μm or less. However, this alone is not sufficient, and when the battery is short-circuited, the strands forming the mesh portion, particularly the strands directly under the current collecting member, may be fused and cut. Moreover, when the battery has a large capacity like the sealed lead-acid battery of the present invention, the height of the electrode plate is 250~5Q (
]llllIC also becomes. Therefore, an extremely large current flows through the strand immediately below the undeployed current collector section at the top, creating a safety problem.
更に極板下部と集電部との抵抗もストランドが従来のよ
うに細かいと極めて高く、放電特性、特に高率放電特性
を低下させるばかりでなく、極板下部の充電効率をも著
しく低下させて、負極のす〜フェーＶ冒ンを招来し、電
池の寿命が短くなるという欠点がある。Furthermore, the resistance between the lower part of the electrode plate and the current collector is extremely high if the strands are as fine as in the past, which not only reduces the discharge characteristics, especially the high rate discharge characteristics, but also significantly reduces the charging efficiency of the lower part of the electrode plate. However, this method has the disadvantage that the negative electrode suffers from a negative electrode loss, resulting in a shortened battery life.
また、密閉形鉛蓄電池が遊離した流動する電解液を有し
ていないため、極板耳部は気体中に露出するのでその耳
部の断面積についてはそれが溶断しないよう特別の配慮
が必要であること、及びエキスパンド極板を使用するに
当ってはＶト厚さが薄いために特にその配慮が重要であ
ることは前に述べた通りである。集電耳に関しては前記
特開昭６４−１９６７４号公報に開示されている技術を
用いれば良いが、例え集電耳部にこのような配慮をして
もなお網目部を構成するストランド、特に集電部直下の
ストランド断面積に関して配慮がないと溶断、爆発の危
険があることが明らかになうた。この部分は、集電耳部
のように電池空間内に露出してはいなく、そのまわりは
活物質、セパレータ及びその孔内に存在する電解液によ
って囲まれているので所要断面積は耳部よりは少なくて
も良いが、本発明の密閉形鉛蓄電池のように極板が大き
く、縦長になるとその値は大変限定されることが明らか
になった。In addition, since sealed lead-acid batteries do not have a free flowing electrolyte, the ears of the electrode plates are exposed to the gas, so special consideration must be given to the cross-sectional area of the ears so that they do not melt. As mentioned above, when using an expanded electrode plate, it is especially important to take this into account since the thickness of the V plate is thin. Regarding the current collecting ears, the technique disclosed in the above-mentioned Japanese Patent Application Laid-open No. 19674/1983 may be used, but even if such consideration is given to the current collecting ears, the strands constituting the mesh portion, especially the collecting It has become clear that there is a risk of melting and explosions if consideration is not given to the cross-sectional area of the strands directly under the electrical parts. This part is not exposed in the battery space like the current collector ear, but is surrounded by the active material, the separator, and the electrolyte present in the hole, so the required cross-sectional area is smaller than the ear. However, it has become clear that when the electrode plates are large and elongated as in the sealed lead-acid battery of the present invention, the value is extremely limited.
本発明は上記欠点を解消したもので、放電特性にすぐれ
た安全性の高い密閉形鉛蓄電池を提供することにある。The present invention eliminates the above-mentioned drawbacks and provides a sealed lead-acid battery with excellent discharge characteristics and high safety.
本発明は、その特許請求の範囲に記載した通りの密閉形
鉛蓄電池である。The present invention is a sealed lead acid battery as defined in the claims.
以下、本発明の実施例について述べる。 Examples of the present invention will be described below.
実施例１゜
第２図に示すように、鉛−力〜シラ五合金からなる種々
の厚さ（ＳＴ）の連続ンートを種々の刻み巾（Ｏｗ）で
エキスパンド加工して巾（Ｐ、）１５０１１１１、高さ
■５３０鴎の大きさの格子を得た。Example 1 As shown in Fig. 2, continuous tons of various thicknesses (ST) made of lead-silica pentalloy were expanded to various widths (Ow) to obtain widths (P, ) 1501111. , a grid with a height of ■530 seagulls was obtained.
この格子の網目部に活物質ペーストを充填し、負極板と
したが、網目部を構成するストランド１の刻み巾（Ｏｗ
）はＶ−）厚さ（ＳＴ）と同じにし、非展開部２に接す
るストランド１の数は１２本、極板厚さは２ｇＩｍ、そ
して活物質量は１枚当り２９０ｇで一定とした。なお、
第３図は第２図の上部（ストランド）の断面拡大図であ
る。The mesh portion of this lattice was filled with active material paste to form a negative electrode plate.
) was the same as V-) thickness (ST), the number of strands 1 in contact with the non-deployed portion 2 was 12, the electrode plate thickness was 2 gIm, and the amount of active material was constant at 290 g per plate. In addition,
FIG. 3 is an enlarged cross-sectional view of the upper part (strand) of FIG. 2.
このようにして得た種々の負極板を用いて、鋳造格子に
よる正極板及びセパソー夕と積層し、常法により密閉形
鉛蓄電池を組立てた。負極板の数は七μ当り１２枚、正
極板のそれは１１枚で、組立てられた密閉形鉛蓄電池の
容量は５００ムｈ／１０ ＨＲである。The various negative electrode plates thus obtained were laminated with a positive electrode plate formed by a cast grid and a separator, and a sealed lead-acid battery was assembled by a conventional method. The number of negative plates is 12 per 7μ, and the number of positive plates is 11.The capacity of the assembled sealed lead acid battery is 500μh/10HR.
組立てた密閉形鉛蓄電池の容量試験、短絡試験、放電深
度５０％での寿命試験を実施したところ第１表のＡ１〜
５に示す結果を得た。When the assembled sealed lead-acid battery was subjected to a capacity test, a short circuit test, and a life test at a depth of discharge of 50%, results A1 to A1 in Table 1 were conducted.
The results shown in 5 were obtained.
実施例Ｚ
第４図に示すように、集電親骨５を網目部４の展開方向
ＤＭと平行に配置し一実施例１に示した手順により種々
の密閉形鉛蓄電池を製作し、各種の試験を実施した。そ
の結果を第１表の屋６〜１１に示すが、ストランドの刻
み巾はｙ −ト厚さと同じにし、非展開部（集電親骨）
に接するストランドの数は２６本であり、極板厚さ、活
物質量等は上記実施例１と同じであった。Example Z As shown in FIG. 4, various sealed lead-acid batteries were manufactured according to the procedure shown in Example 1 by arranging the current collector ribs 5 parallel to the developing direction DM of the mesh portion 4, and various tests were carried out. was carried out. The results are shown in Table 1, rows 6 to 11. The width of the strand cut was the same as the thickness of the y-t, and
The number of strands in contact with was 26, and the electrode plate thickness, amount of active material, etc. were the same as in Example 1 above.
第１表の結果から明らかなように、非展開部直下のスト
ランド断面積に対する負極活物質量の割合を１０２１以
下にすれは、容量は大きく、電池が談って短絡されたと
しても、ストランドが溶断し、爆発したりすることはな
い。その上、特に６９／、４以下にすれは、ストランド
部の抵抗が小さくなるので、極板下部にまで充電々流が
良く流れるので、負極板がす〃フェーシ冒ンして短寿命
になることもなく、長寿命の電池になるＯ
網目部の展開方向と平行に非展開集電耳部を配置するの
が、本発明の達成には最も容易で効果が大きい。このよ
うにすれば、鉛又は鉛合金の連続ｙ）の厚さが薄くても
本発明の目的が達成され、その分多くの活物質を充填す
ることができ、しかも経済的である。このような格子は
、第５図に示すように、
１）鉛又は鉛合金の連続シートの巾方向に平行にスリッ
トを入れる工程
Ｉ）該スリットを展開拡張し、連続した網状部を形成す
る工程
１） 網状部の長さ方向に少なくとも１本の非展開の鉛
又は鉛合金からなる連続Ｖ−）を連続して接合する工程
ｔＶ）網状部に鉛ペーストを塗着する工程Ｖ）鉛ペース
ト塗着後その両面を紙状体にて補強し連続した極板にす
る工程
ｖｌ） 連続した極板の巾方向が極板の高さ方向になる
ように、そして非展開の鉛又は鉛合金からなる連続シー
Ｆに集電耳部を形成するように切断し、独立した極板と
する工程
によって製造することが可能である。As is clear from the results in Table 1, when the ratio of the amount of negative electrode active material to the cross-sectional area of the strand directly under the non-deployed part is 1021 or less, the capacity is large, and even if the battery is short-circuited, the strand will remain It will not melt or explode. In addition, especially when it is less than 69/4, the resistance of the strand becomes small, so the charging current flows well to the bottom of the electrode plate, which can damage the face of the negative electrode plate and shorten its life. It is easiest and most effective for the present invention to be achieved by arranging the non-deployed current collecting ears parallel to the direction in which the O 2 mesh part develops, which results in a long-life battery. In this way, even if the thickness of the lead or lead alloy series y) is thin, the object of the present invention can be achieved, and a correspondingly larger amount of active material can be filled, which is more economical. As shown in Fig. 5, such a lattice is made by the following steps: 1) Step of making slits parallel to the width direction of a continuous sheet of lead or lead alloy I) Step of expanding and expanding the slits to form a continuous net-like part 1) Process of continuously joining at least one continuous V-) consisting of unexpanded lead or lead alloy in the length direction of the net-like part tV) Process of applying lead paste to the net-like part V) Lead paste coating After it is applied, both sides are reinforced with paper-like material to make it into a continuous electrode platevl) The width direction of the continuous electrode plate is in the height direction of the electrode plate, and it is made of non-expanded lead or lead alloy. It is possible to manufacture the continuous sheet F by cutting the continuous sheet F so as to form a current collecting ear to form an independent electrode plate.
極板高さが、低い場合には本発明の構成は特に有効では
ない。極板高さが実施例の如く、２００電を超える場合
であって、かつその巾が１５０鴎位よりも狭い場合に有
効である。The structure of the present invention is not particularly effective when the electrode plate height is low. This is effective when the height of the electrode plate exceeds 200 volts, as in the embodiment, and the width is narrower than about 150 volts.
このように本発明によれば大容量の背の高い、放電特性
にすぐれた、安全性の高い密閉形鉛蓄電池を提供できる
ので、その工業的価値は大きい。As described above, according to the present invention, it is possible to provide a sealed lead-acid battery with a large capacity, high height, excellent discharge characteristics, and high safety, and therefore has great industrial value.
第１図は従来の格子の形状を示す平面図、第２図、第４
図は本発明に用いた格子を示す平面図、第３図は第２図
のム部の断面拡大図、第５図は第４図の格子を得る方法
の１つを示す平面図である。
：ストランド
：非展開部
：集電親骨
；網目部Figure 1 is a plan view showing the shape of a conventional lattice, Figure 2, Figure 4.
3 is a plan view showing the grating used in the present invention, FIG. 3 is an enlarged cross-sectional view of the lattice portion of FIG. 2, and FIG. 5 is a plan view showing one method for obtaining the grating shown in FIG. 4. : Strand: Non-deployed part: Current collector rib; Mesh part
Claims (1)
展開拡張して、成した網目部と非展開部とからなる格子
を備え、該網目部には活物質を充填し、該非展開部に集
電親骨兼集電耳を形成したエキスパンド極板を用いた密
閉形鉛蓄電池において、該非展開部に接するストランド
の総断面積に対する活物質量の割合を１０ｇ／ｍｍ＾２
以下としたことを特徴とする密閉形鉛蓄電池。 ２）鉛又は鉛合金の連続シートをエキスパンド法により
展開拡張して形成した網目部と非展開部とからなる格子
を備え、該網目部には活物質を充填し、該非展開部に集
電親骨兼集電耳を形成したエキスパンド極板を用いた密
閉形鉛蓄電池において、該非展開部に接するストランド
の総断面積に対する活物質量の割合を６ｇ／ｍｍ＾２以
下としたことを特徴とする密閉形鉛蓄電池。 ３）網目部の展開拡張方向に対して平行に非展開部を配
置することを特徴とする請求項１又は請求項２記載の密
閉形鉛蓄電池。[Claims] 1) A continuous sheet of lead or lead alloy is expanded and expanded by an expanding method to form a lattice consisting of a mesh portion and a non-expanded portion, and the mesh portion is filled with an active material, In a sealed lead-acid battery using an expanded electrode plate in which a current collecting rib and current collecting ear are formed in the non-deployed part, the ratio of the amount of active material to the total cross-sectional area of the strands in contact with the non-deployed part is 10 g/mm^2
A sealed lead-acid battery characterized by the following: 2) A lattice formed by expanding and expanding a continuous sheet of lead or lead alloy by an expanding method and consisting of a mesh part and a non-expandable part, the mesh part is filled with an active material, and the non-expandable part is provided with a current collector rib. A sealed lead-acid battery using an expanded electrode plate that also serves as a current collector, characterized in that the ratio of the amount of active material to the total cross-sectional area of the strands in contact with the non-expanded portion is 6 g/mm^2 or less. lead-acid battery. 3) The sealed lead-acid battery according to claim 1 or 2, wherein the non-deployable portion is arranged parallel to the direction in which the mesh portion expands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1102139A JP2636416B2 (en) | 1989-04-20 | 1989-04-20 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1102139A JP2636416B2 (en) | 1989-04-20 | 1989-04-20 | Sealed lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02281558A true JPH02281558A (en) | 1990-11-19 |
| JP2636416B2 JP2636416B2 (en) | 1997-07-30 |
Family
ID=14319434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1102139A Expired - Fee Related JP2636416B2 (en) | 1989-04-20 | 1989-04-20 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2636416B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514442A (en) * | 2015-12-15 | 2016-04-20 | 常熟市万隆电源技术研发有限公司 | UPS storage battery grid not prone to deformation |
| JP2019029068A (en) * | 2017-07-25 | 2019-02-21 | 株式会社Ｇｓユアサ | Lead storage battery |
-
1989
- 1989-04-20 JP JP1102139A patent/JP2636416B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514442A (en) * | 2015-12-15 | 2016-04-20 | 常熟市万隆电源技术研发有限公司 | UPS storage battery grid not prone to deformation |
| JP2019029068A (en) * | 2017-07-25 | 2019-02-21 | 株式会社Ｇｓユアサ | Lead storage battery |
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| JP2636416B2 (en) | 1997-07-30 |
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