JP4654689B2 - Winding cylindrical sealed lead-acid battery - Google Patents
Winding cylindrical sealed lead-acid battery Download PDFInfo
- Publication number
- JP4654689B2 JP4654689B2 JP2005008555A JP2005008555A JP4654689B2 JP 4654689 B2 JP4654689 B2 JP 4654689B2 JP 2005008555 A JP2005008555 A JP 2005008555A JP 2005008555 A JP2005008555 A JP 2005008555A JP 4654689 B2 JP4654689 B2 JP 4654689B2
- Authority
- JP
- Japan
- Prior art keywords
- wound
- flash
- current collecting
- collecting tab
- 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 - Fee Related
Links
- 239000002253 acid Substances 0.000 title claims description 11
- 238000004804 winding Methods 0.000 title claims description 8
- 238000004080 punching Methods 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 150000001553 barium compounds Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
-
- 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
Description
本発明は捲回形密閉式鉛蓄電池に関するものである。 The present invention relates to a wound sealed lead-acid battery.
本発明は、帯状の正極、負極が帯状のセパレータを介して捲回された捲回群を備え、該
極板群が有底筒状の電槽内に収容されている捲回形密閉式鉛蓄電池を対象とする。
The present invention comprises a wound positive lead and a negative electrode comprising a wound group in which a negative electrode is wound through a strip-shaped separator, and the electrode plate group is housed in a bottomed cylindrical battery case. For storage batteries.
捲回形密閉式鉛蓄電池は、長尺の正負極板をセパレータを介して捲回された構造をもっ
ている。このような捲回形電池の集電タブは1つではなく、捲回された電極群を真上から
見たときに、同極性の集電タブが一列にそろうように、複数設定されている。また、電極
群の外周に行くほど半径が大きくなるため、集電タブの幅を広げることができる。集電タ
ブの幅を広げることにより、電池内部抵抗を低減し出力特性を向上することが可能となる
。
A wound sealed lead-acid battery has a structure in which a long positive and negative electrode plate is wound through a separator. Such a wound battery has not a single current collection tab, but a plurality of current collection tabs having the same polarity are aligned in a row when the wound electrode group is viewed from directly above. . Further, since the radius increases toward the outer periphery of the electrode group, the width of the current collecting tab can be increased. By expanding the width of the current collecting tab, it is possible to reduce the battery internal resistance and improve the output characteristics.
しかしながら、この集電タブを設ける際に打ち抜き加工工程で一方の面にばりを有する
場合があり、この集電タブのばりを有する面が正極では外側、負極では内側とランダムな
組み合わせで捲回された構造であった。特許文献1では短絡の危険性を低減するために正
極格子の桟の交点と負極格子の桟の交点とが重なり合わないように構成された捲回群を備
えた円筒形密閉式鉛蓄電池を提供しているが、正極格子、負極格子の桟が重なり合わない
ようにしても、集電タブのばりを有する面が正極では外側、負極では内側とランダムな組
み合わせであれば短絡の危険性が高い。また各格子の桟が重なり合わないようにしても、
各集電タブのばりを有する面が内側になるように構成されていれば短絡率が下がる。さら
に例え各格子の桟が重なり合っていても各集電タブのばりを有する面が内側になるように
構成されていれば短絡率が下がる。各格子の桟が重なり合わなくするよりも、各集電タブ
のばりを有する面が内側になるように構成されているほうが短絡防止に効果がある。各格
子の桟が重なり合わなくするのは、正極、負極で打ち抜き工程で金型を変更する必要があ
り、また捲回された時に確認するのは難しいなど量産する際には適していない。
However, when the current collecting tab is provided, there may be a flash on one side in the punching process, and the surface having the flash of the current collecting tab is wound in a random combination with the outer side at the positive electrode and the inner side at the negative electrode. It was a structure.
If it is constituted so that the surface having the flash of each current collecting tab is on the inside, the short circuit rate is lowered. Furthermore, even if the bars of each grid are overlapped, the short circuit rate is reduced if the surface having the burrs of the current collecting tabs is configured to be inside. It is more effective in preventing a short circuit if the surfaces of the current collecting tabs are arranged inward than the bars of the lattices do not overlap each other. It is not suitable for mass production because it is necessary to change the mold in the punching process for the positive electrode and the negative electrode, and it is difficult to check when the grids are rolled up.
このような構造の捲回形密閉式鉛蓄電池は、集電タブのばりで根元近傍のものが、セパ
レータを介して対極と重なり合っているのでばりを有する面が外側に捲回された場合、セ
パレータを突き抜けて短絡する危険性があるという問題点があった。
A wound sealed lead-acid battery having such a structure has a current collector tab that is near the root and overlaps with the counter electrode via the separator. There is a problem that there is a risk of short-circuiting through.
本発明の目的は、ばりによる短絡を抑制できる捲回形密閉式鉛蓄電池を提供することに
ある。
An object of the present invention is to provide a wound-type sealed lead-acid battery that can suppress a short circuit due to flash.
本発明に係る捲回形密閉式鉛蓄電池では、捲回群の端縁に正極又は負極の各集電タブが
設けられており、該各集電タブは、打ち抜き加工により一方の面にばりを有するものであ
り、前記捲回群は、前記正極の集電タブの根元近傍のばり、および負極の集電タブの根元近傍のばりを有する面が内側になるように捲回されることを特徴とする。
In the wound sealed lead-acid battery according to the present invention, each current collecting tab of the positive electrode or the negative electrode is provided at the edge of the wound group, and each current collecting tab is flashed on one surface by punching. The winding group is wound so that a surface having a flash near the root of the current collector tab of the positive electrode and a flash near the root of the current collector tab of the negative electrode are inside. And
各集電タブの根元近傍にばりを有していても、ばりを有する面が内側になるように捲回
されることで、ばりとセパレータの間に空隙ができる。この空隙が緩衝地帯となって、集
電タブがセパレータを突き抜ける短絡を抑制することができる。
Even if the current collecting tab has a flash near the base, the gap is formed between the flash and the separator by winding the current-collecting tab so that the surface having the flash is on the inside. This gap becomes a buffer zone, and a short circuit in which the current collecting tab penetrates the separator can be suppressed.
本発明の実施例を以下に説明する。 Examples of the present invention will be described below.
正極厚さ0.7mmの鉛合金箔を用いて幅80mm×長さ600mmの極板基体を打ち
抜き図1に示す集電体1を作製した。
A
次に前記格子体を用いて電極を作製した。正極は酸化度70%の鉛粉と希硫酸とを混練
し活物質ペーストを得た後、集電体1に充填した。負極は酸化度70%の鉛粉に少量の炭
素粉末、リグニン、バリウム化合物を加え、希硫酸と混練した後、集電体1に充填した。
続いて帯状の極板を正極と負極の間にセパレータを介して捲回する。各極板の集電タブの
ばりの向きを変えて表1に示すような構造の捲回群を作製した。
Next, an electrode was produced using the lattice. The positive electrode was kneaded with lead powder having an oxidation degree of 70% and dilute sulfuric acid to obtain an active material paste, and then the
Subsequently, the belt-shaped electrode plate is wound between the positive electrode and the negative electrode through a separator. A winding group having a structure as shown in Table 1 was produced by changing the direction of the flash of the current collecting tab of each electrode plate.
その後、捲回群を電槽に挿入し、上蓋を溶着し、比重1.250の希硫酸を注液し電槽
化成して捲回形密閉式鉛蓄電池を得た。
Thereafter, the wound group was inserted into the battery case, the upper lid was welded, diluted sulfuric acid having a specific gravity of 1.250 was injected, and the battery case was formed to obtain a wound sealed lead-acid battery.
(実施例1)
それぞれの電池を100個ずつ作製し初期不良率を調べた。ここでいう初期不良とは、
電槽化成中の短絡による不良を指す。結果を表2に示す。
Example 1
100 batteries were prepared and the initial failure rate was examined. The initial failure here is
It refers to a failure due to a short circuit during battery case formation. The results are shown in Table 2.
比較例である電池B、電池Cおよび電池Dは初期不良が発生した。本発明例である電池A
は初期不良がなく、正極タブ2および負極タブ2のばりを有する面が内側になるように捲
回されたことで図2のような状態になり、ばりとセパレータの間に空隙が出来ることが分
かる。比較例は図3のような状態となり、各集電タブ2のばりで根元近傍のばり3がセパ
レータを介して対極に押し付けられて短絡が起こる。
Battery B, Battery C, and Battery D, which are comparative examples, had initial failures. Battery A which is an example of the present invention
There is no initial failure, and the surface having the flash of the
(実施例2)
次にそれぞれの電池で初期不良が発生しなかったものに関して40℃雰囲気下で放置し
、電池電圧の推移を測定した。この結果を図4に示す。集電タブ2の根元近傍にばり3が
存在しセパレータを押し付けている場合、この部分の極間距離が非常に狭くなっており、
またセパレータが傷つけられているため、自己放電が早くなり、電池電圧の低下が大きく
なる。本発明である電池Aは電池電圧の低下が遅いのに対し、比較例の電池B、C、Dは
電池電圧の低下が早い結果となった。つまり、本発明電池Aは、ばり3を有する面が内側
になるように捲回されているので集電タブの根元近傍のばり3がセパレータに強く押し付
けられることがないのに対し、比較例は集電タブの根元近傍のばり3がセパレータに強く
押し付けられたために、自己放電が早くなったことを示している。
(Example 2)
Next, the batteries in which no initial failure occurred in each battery were left in an atmosphere of 40 ° C., and the transition of the battery voltage was measured. The result is shown in FIG. When the
Moreover, since the separator is damaged, self-discharge is accelerated, and the battery voltage is greatly reduced. The battery A according to the present invention had a slow decrease in battery voltage, while the batteries B, C, and D of the comparative examples had a quick decrease in battery voltage. That is, the battery A of the present invention is wound so that the surface having the
1 集電体
2 集電タブ
3 集電タブの根元近傍のばり
4 セパレータ
DESCRIPTION OF
Claims (1)
って、前記捲回群の端縁に前記正極又は負極の各集電タブが設けられており、該集電タブ
は、前記正極又は負極の集電体と一体に形成されており、また打ち抜き加工により一方の
面にばりを有するものであり、前記捲回群は、前記正極の集電タブの根元近傍のばり、および負極の集電タブの根元近傍のばりを有する面が内側になるように捲回されたものであることを特徴とする捲回筒形密閉式鉛蓄電池。 A lead-acid battery having a wound group in which a strip-shaped positive electrode and a negative electrode are wound through a strip-shaped separator, and each current collecting tab of the positive electrode or the negative electrode is provided at an edge of the wound group, The current collecting tab is formed integrally with the current collector of the positive electrode or the negative electrode, and has a flash on one surface by punching, and the winding group includes the current collecting tab of the positive electrode. A wound cylindrical sealed lead-acid battery, characterized in that it is wound so that the surface having the flash near the root and the flash near the root of the current collecting tab of the negative electrode is inside.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005008555A JP4654689B2 (en) | 2005-01-17 | 2005-01-17 | Winding cylindrical sealed lead-acid battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005008555A JP4654689B2 (en) | 2005-01-17 | 2005-01-17 | Winding cylindrical sealed lead-acid battery |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006196379A JP2006196379A (en) | 2006-07-27 |
JP4654689B2 true JP4654689B2 (en) | 2011-03-23 |
Family
ID=36802271
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---|---|---|---|
JP2005008555A Expired - Fee Related JP4654689B2 (en) | 2005-01-17 | 2005-01-17 | Winding cylindrical sealed lead-acid battery |
Country Status (1)
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JP (1) | JP4654689B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101137372B1 (en) * | 2009-09-18 | 2012-04-20 | 삼성에스디아이 주식회사 | Method of manufacturing electrode assembly for rechargeable battery |
KR101222259B1 (en) | 2009-11-18 | 2013-01-15 | 삼성에스디아이 주식회사 | Secondary Battery |
CN113889718A (en) * | 2020-07-02 | 2022-01-04 | 本田技研工业株式会社 | Battery with a battery cell |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6322020B2 (en) * | 1980-02-28 | 1988-05-10 | Furukawa Denchi Kk | |
JPS6345737Y2 (en) * | 1982-08-20 | 1988-11-28 | ||
JPH0794207A (en) * | 1993-09-28 | 1995-04-07 | Matsushita Electric Ind Co Ltd | Cylindrical sealed type alkaline storage battery |
JP2001023646A (en) * | 1999-07-13 | 2001-01-26 | Japan Storage Battery Co Ltd | Manufacture of lead alloy rolled sheet for lead-acid battery grid |
JP2001196066A (en) * | 2000-01-14 | 2001-07-19 | Japan Storage Battery Co Ltd | Sealed lead acid battery |
JP2002203591A (en) * | 2000-12-28 | 2002-07-19 | Japan Storage Battery Co Ltd | Cylindrical secondary battery |
-
2005
- 2005-01-17 JP JP2005008555A patent/JP4654689B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6322020B2 (en) * | 1980-02-28 | 1988-05-10 | Furukawa Denchi Kk | |
JPS6345737Y2 (en) * | 1982-08-20 | 1988-11-28 | ||
JPH0794207A (en) * | 1993-09-28 | 1995-04-07 | Matsushita Electric Ind Co Ltd | Cylindrical sealed type alkaline storage battery |
JP2001023646A (en) * | 1999-07-13 | 2001-01-26 | Japan Storage Battery Co Ltd | Manufacture of lead alloy rolled sheet for lead-acid battery grid |
JP2001196066A (en) * | 2000-01-14 | 2001-07-19 | Japan Storage Battery Co Ltd | Sealed lead acid battery |
JP2002203591A (en) * | 2000-12-28 | 2002-07-19 | Japan Storage Battery Co Ltd | Cylindrical secondary battery |
Also Published As
Publication number | Publication date |
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JP2006196379A (en) | 2006-07-27 |
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