JP2008117586A - Lead storage battery - Google Patents

Lead storage battery Download PDF

Info

Publication number
JP2008117586A
JP2008117586A JP2006298636A JP2006298636A JP2008117586A JP 2008117586 A JP2008117586 A JP 2008117586A JP 2006298636 A JP2006298636 A JP 2006298636A JP 2006298636 A JP2006298636 A JP 2006298636A JP 2008117586 A JP2008117586 A JP 2008117586A
Authority
JP
Japan
Prior art keywords
battery
damming member
lead
lid
terminal
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.)
Pending
Application number
JP2006298636A
Other languages
Japanese (ja)
Inventor
Akitoshi Hiramatsu
明俊 平松
Muneyoshi Noda
宗良 野田
Shozo Murochi
省三 室地
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2006298636A priority Critical patent/JP2008117586A/en
Publication of JP2008117586A publication Critical patent/JP2008117586A/en
Pending legal-status Critical Current

Links

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

Landscapes

  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lead storage battery with high reliability through restraint of ignition of spark to hydrogen gas remaining inside the battery upon melting of an electrode pole and damage on a battery case or a lid by the same, when the discharge is carried out at a large current beyond assumption by an abnormal use or a misuse such as inter-terminal short circuiting of the lead storage battery. <P>SOLUTION: A terminal bushing 5 insert-molded on a lid and an electrode pole 6 are welded to provide a melting part 6a at the electrode pole melting during large-current discharge. A dam-up member 12 for damming up molten lead generated at the melting part is arranged between the electrode pole and an inner wall of the terminal bushing or between the electrode pole and a coating layer 4a coating a base end of the terminal bushing. With this, secondary short circuiting due to fall of the molten lead at melting, and ignition to hydrogen gas of spark at melting and damage of the battery case and the lid due to it is restrained. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、鉛蓄電池に関するものである。   The present invention relates to a lead-acid battery.

鉛蓄電池、特に、急放電性能が要求される、始動用鉛蓄電池や、バックアップ用の鉛蓄電池は、薄型極板や、断面積の大きな接続部材を使用することによって、電池の内部抵抗をなるべく下げる設計的配慮がされている。ところが、このような鉛蓄電池の端子間を誤って短絡した場合や、許容される範囲を超える大電流で放電した場合、鉛蓄電池内部がジュール熱により異常発熱する。   Lead-acid batteries, especially lead-acid batteries for start-up and backup lead-acid batteries that require rapid discharge performance, reduce the internal resistance of the battery as much as possible by using thin electrode plates and connecting members with a large cross-sectional area. Design considerations have been made. However, when the terminals of such a lead storage battery are accidentally short-circuited or discharged with a large current exceeding the allowable range, the inside of the lead storage battery abnormally generates heat due to Joule heat.

鉛蓄電池の内部接続部材は、鉛もしくは鉛合金であり、他の電池系で用いられるような他の金属に比較して、その融点は極めて低い。その結果、大電流での放電により、極柱やストラップあるいは極板耳部といった接続部で生じる熱で、これらの接続部材が溶断する場合がある。   The internal connection member of a lead storage battery is lead or a lead alloy, and its melting point is extremely low compared to other metals used in other battery systems. As a result, these connection members may be melted by heat generated at the connection portion such as the pole column, the strap, or the electrode plate ear due to the discharge with a large current.

このような接続部の溶断によって、その溶断部で放電電流が遮断されるため、電気スパークが発生する。鉛蓄電池では、充電時に水素ガスおよび酸素ガスが発生しており、排気栓を通して外部に放出されるものの、その一部が電池内に滞留している。このような滞留水素ガスが前記したようなスパークによって急激に燃焼し、場合によっては電槽や蓋を破損させるという問題がある。   Since the discharge current is interrupted by the fusing part by such fusing of the connecting part, an electric spark is generated. In a lead storage battery, hydrogen gas and oxygen gas are generated during charging and are released to the outside through an exhaust plug, but a part of the gas stays in the battery. There is a problem that such a staying hydrogen gas is rapidly burned by the spark as described above, and in some cases, the battery case or the lid is damaged.

このような問題は、溶断時のスパークが、電池内の水素ガスと隔離されていないがために発生するものである。したがって、このような問題を解決するために、溶断部を電池内部に滞留する水素ガスから隔離した部位に設定することが有効である。   Such a problem occurs because the spark at the time of fusing is not isolated from the hydrogen gas in the battery. Therefore, in order to solve such a problem, it is effective to set the fusing part at a site isolated from the hydrogen gas staying inside the battery.

特許文献１には、鉛蓄電池の極柱に径の小さい部分を設け、この部分を封止部材で封止する構造が示されている。これにより、径の小さい部分で溶断が発生したとしても、スパークは封止部材によって電池内の水素ガスと隔離される。特許文献２は、鉛蓄電池の内部接続経路上にフューズを配置し、フューズの周囲を、この溶断したフューズを収納する空間を残してエポキシ樹脂等の封止部材で封止する構成が示されている。
実開平６−５６９６７号公報 特開２００６−１２６０２号公報 Patent Document 1 discloses a structure in which a portion having a small diameter is provided on a pole column of a lead-acid battery, and this portion is sealed with a sealing member. As a result, even if fusing occurs in a portion having a small diameter, the spark is isolated from the hydrogen gas in the battery by the sealing member. Patent Document 2 shows a configuration in which a fuse is disposed on an internal connection path of a lead-acid battery, and the periphery of the fuse is sealed with a sealing member such as an epoxy resin, leaving a space for housing the blown fuse. Yes.
Japanese Utility Model Publication No. 6-56967 JP 2006-12602 A

特許文献１および特許文献２に示された構成は、いずれも溶断する部位を封止剤で封止する構成を有しているため、その製造工程において、封止剤を注入し、硬化する工程が必要となるため、生産性に優れているとはいえなかった。本発明は、封止剤を用いることなく、より生産性の高い構成で、接続部品の溶断による水素ガス引火と、これによる電槽、蓋の破損が抑制された安全性の高い鉛蓄電池を提供することを目的とする。   Since the structure shown by patent document 1 and patent document 2 has the structure which seals the site | part to melt | dissolve with a sealing agent, the process which inject | pours a sealing agent and hardens | cures in the manufacturing process. Therefore, it cannot be said that productivity is excellent. The present invention provides a highly safe lead storage battery that has a higher productivity without using a sealant, and that prevents hydrogen gas from being ignited by fusing connection parts, and thereby preventing battery and lid damage. The purpose is to do.

前記した課題を解決するために、本発明の請求項１に係る発明は、蓋にインサート成型された筒状の端子ブッシングの先端に極柱が溶接された鉛蓄電池であり、前記端子ブッシングは、蓋にインサート成型された端子ブッシング基部と、前記蓋より突出する端子部を備え、前記端子部の先端において、前記端子ブッシングと前記極柱とが接合され、前記端子ブッシング基部と前記極柱との間、もしくは、前記端子ブッシング基部の底面を覆い、かつ前記蓋と一体に設けられた基部被覆層と前記極柱との間の少なくとも一方に、前記極柱が溶融して生じた溶融鉛を堰き止めるための堰き止め部材を配置し、前記極柱の、前記堰き止め部材と前記端子部の先端との間に大電流放電時に溶断する溶断部を設け、かつ、前記溶断部と前記堰き止め部材との間に溶融鉛を収納する収納空間部を設けたことを特徴とする鉛蓄電池を示すものである。   In order to solve the above-described problem, the invention according to claim 1 of the present invention is a lead storage battery in which a pole column is welded to the tip of a cylindrical terminal bushing that is insert-molded in a lid, A terminal bushing base insert-molded on the lid; and a terminal portion protruding from the lid; at the tip of the terminal portion, the terminal bushing and the pole column are joined, and the terminal bushing base and the pole column Covering the bottom surface of the terminal bushing base and the base covering layer provided integrally with the lid and at least one of the pole columns is dammed with molten lead generated by melting the pole columns A damming member for stopping is disposed, a fusing part that melts at the time of a large current discharge is provided between the damming member and the tip of the terminal part of the polar pole, and the fusing part and the damming member Shows a lead-acid battery, characterized in that a housing space for housing the molten lead during.

また、本発明の請求項２に係る発明は、請求項１の構成を有した鉛蓄電池において、前記堰き止め部材を、前記極柱の一部に、他の部分よりも径を大きくした大径部として設けたことを特徴とする。   Further, the invention according to claim 2 of the present invention is the lead storage battery having the configuration of claim 1, wherein the damming member is formed in a part of the pole column and has a larger diameter than the other part. It is provided as a part.

また、本発明の請求項３に係る発明は、請求項１の構成を有した鉛蓄電池において、前記堰き止め部材を、前記基部被覆層に接合したことを特徴とする。   According to a third aspect of the present invention, in the lead-acid battery having the configuration of the first aspect, the damming member is joined to the base covering layer.

さらに、本発明の請求項４に係る発明は、請求項１もしくは３の構成を有した鉛蓄電池において、前記堰き止め部材は、極柱に装着されたことを特徴とする。   Furthermore, the invention according to claim 4 of the present invention is characterized in that, in the lead storage battery having the configuration of claim 1 or 3, the damming member is attached to a pole column.

そして、本発明の請求項５に係る発明は、請求項１の構成を有した鉛蓄電池において、前記堰き止め部材は、極柱に装着され、かつ弾性を有し、前記堰き止め部材がその弾性によって、前記端子ブッシング基部もしくは前記基部被覆層に押圧状態で接することを特徴とする。   According to a fifth aspect of the present invention, in the lead-acid battery having the configuration of the first aspect, the damming member is attached to the pole column and has elasticity, and the damming member is elastic. The terminal bushing base or the base cover layer is in contact with the terminal bushing in a pressed state.

本発明によれば、鉛蓄電池を誤って短絡する等、異常な大電流放電を行った場合において、極柱と端子ブッシングとの溶接部直下に設けた溶断部が溶断することによって、短絡電流が遮断される。また、溶断時に極柱が溶融して生じる溶融鉛の極板群への落下が堰き止め部材で抑制されるとともに、堰き止め部材によって、溶断部で生じたスパークと電池内に滞留した水素ガスとが隔離されるため、水素ガスへの引火と、これによる鉛蓄電池の電槽や蓋の破損が抑制される。   According to the present invention, when an abnormal large current discharge such as a lead storage battery is accidentally short-circuited, the fusing part provided immediately below the welded part between the pole column and the terminal bushing is fused, thereby causing a short-circuit current. Blocked. In addition, the damming member suppresses the fall of the molten lead, which is generated by melting the pole column at the time of fusing, by the damming member, and the damming member causes the spark generated at the fusing part and the hydrogen gas remaining in the battery to Therefore, the ignition to hydrogen gas and the damage to the battery case and lid of the lead storage battery due to this are suppressed.

（第１の実施形態）
以下、図面を用いて本発明の第１の実施形態による鉛蓄電池の構成を説明する。 (First embodiment)
Hereinafter, the configuration of the lead-acid battery according to the first embodiment of the present invention will be described with reference to the drawings.

図１は、本発明の第１の実施形態による鉛蓄電池１の要部断面を示す図である。電槽２に極板群（図示せず）が収納されており、電槽２の上部を閉じる蓋４を備える。蓋４には筒状の端子ブッシング５がインサート成型されている。端子ブッシング５は、蓋４中に埋設された端子ブッシング基部５ａと、蓋４から突出し、電池の正極・負極端子として機能する端子部５ｂを備える。   FIG. 1 is a diagram showing a cross-section of the main part of a lead-acid battery 1 according to the first embodiment of the present invention. An electrode plate group (not shown) is housed in the battery case 2, and includes a lid 4 that closes the upper part of the battery case 2. A cylindrical terminal bushing 5 is insert-molded in the lid 4. The terminal bushing 5 includes a terminal bushing base portion 5a embedded in the lid 4 and a terminal portion 5b that protrudes from the lid 4 and functions as a positive electrode / negative electrode terminal of the battery.

極板群からは、極板群と端子部５ｂとを接続するための極柱６が導出されており、極柱６の先端部が端子部５ｂの先端で溶接されている。   From the electrode plate group, a pole column 6 for connecting the electrode plate group and the terminal portion 5b is led out, and the tip end portion of the pole column 6 is welded at the tip end of the terminal portion 5b.

本発明では、極柱６の端子部５ｂとの溶接部の下方の位置に、溶断部６ａを設ける。この溶断部６ａは、鉛蓄電池１を端子間短絡等により、異常な大電流で放電した際に溶断することによって、短絡を停止させる機能を有する。   In this invention, the fusing part 6a is provided in the position below the welding part with the terminal part 5b of the pole 6. The fusing part 6a has a function of stopping the short circuit by fusing when the lead storage battery 1 is discharged with an abnormal large current due to a short circuit between terminals.

溶断部６ａとしては、一例として、図１に示したような、極柱６の径を細くし、断面積を他の部分よりも小さく設定することによる。また、他の手段としては、溶断部６ａの融点を極柱６の他の部分の融点よりも低い材料で構成してもよい。例えば、極柱６用の合金の一種として用いられるＰｂ−Ｓｎ合金では、Ｓｎ濃度によって融点が変化するため、例えば、溶断部６ａをＰｂ−２０ｗｔ％Ｓｎとし、溶断部６ａ以外の部分をＰｂ−２０ｗｔ％Ｓｎ合金よりも融点の高いＰｂ−２．５ｗｔ％Ｓｎ合金としてもよい。   As an example of the fusing part 6a, as shown in FIG. 1, the diameter of the pole column 6 is reduced, and the cross-sectional area is set smaller than the other parts. As another means, the melting point of the fusing part 6 a may be made of a material lower than the melting point of the other part of the pole 6. For example, in a Pb—Sn alloy used as a kind of alloy for the pole 6, the melting point changes depending on the Sn concentration. For example, the melted part 6 a is Pb-20 wt% Sn, and the part other than the melted part 6 a is Pb— It is good also as a Pb-2.5 wt% Sn alloy whose melting | fusing point is higher than a 20 wt% Sn alloy.

なお、溶断が確実に溶断部６ａで発生するよう、溶断部６ａの断面積を、ストラップや極板耳といった他の接続部の断面積の関係において設定すべきである。なお、電槽２内に存在する電解液によって、各接続部が冷却されるため、電解液面位置を種々変更させ、溶断部６ａで溶断が行われるよう、溶断部６ａの断面積や融点等を予め設定しておく。このような設定は、事前の短絡試験や、ＣＡＥ解析によって可能である。   Note that the cross-sectional area of the fusing part 6a should be set in relation to the cross-sectional area of other connecting parts such as straps and electrode plate ears so that the fusing occurs reliably in the fusing part 6a. In addition, since each connection part is cooled with the electrolyte solution which exists in the battery case 2, the cross-sectional area, melting | fusing point, etc. of the fusing part 6a are changed so that the electrolyte surface position can be changed variously and the fusing part 6a is fused. Is set in advance. Such setting is possible by a prior short-circuit test or CAE analysis.

本発明の鉛蓄電池１においては、極柱６の端子ブッシング基部５ａを覆い、かつ蓋４と一体に設けた基部被覆層４ａに対応した部分に極柱の径が他の部分より大となる大径部６ｂを設ける。大径部６ｂは、その先端が基部被覆層４ａに接するか、接しない場合でも、大径部６ｂと基部被覆層４ａとの間隙が、溶断部６ａで生じた溶融鉛が大径部６ｂによって堰き止められ、極板群への落下が抑制されるに十分な間隙以下に保たれる。   In the lead-acid battery 1 of the present invention, the diameter of the pole column is larger than that of the other portion, covering the terminal bushing base portion 5a of the pole column 6 and corresponding to the base coating layer 4a provided integrally with the lid 4. A diameter portion 6b is provided. The large-diameter portion 6b has a gap between the large-diameter portion 6b and the base coating layer 4a, even when the tip thereof is in contact with or not in contact with the base coating layer 4a. It is dammed and kept below a gap sufficient to prevent the electrode plate group from falling.

このような溶融鉛を堰き止める、堰き止め部材としての機能を有した大径部６ｂと、溶断部６ａとの間には、溶断部６ａの溶融によって生じた溶融鉛を収納するための収納空間部３が設けられる。収納空間部３の容積は、収納空間部３に溶融鉛が流れ込んだ状態で、溶断部６ａで確実に電気的接続が遮断されるに十分な容積とする。収納空間部３の容積が必要以下である場合、溶融鉛の逃げ場がなく、溶融鉛を介して極柱６の電気的導通が保持されるためである。   A storage space for storing molten lead generated by melting of the fusing part 6a between the large diameter part 6b having a function as a damming member for damming such molten lead and the fusing part 6a Part 3 is provided. The volume of the storage space 3 is set to a volume sufficient to ensure that the electrical connection is cut off at the fusing part 6a in a state where molten lead flows into the storage space 3. This is because when the volume of the storage space 3 is less than necessary, there is no escape place for the molten lead, and electrical conduction of the pole 6 is maintained through the molten lead.

この大径部６ｂは、端子間短絡のように、異常な大電流で放電した際、溶断部６ａで生じた溶融鉛を、極板群３に落下しないよう堰き止める、堰き止め部材としての作用を有する。さらに、大径部６ｂは、溶断部６ａの溶断によって生じたスパークと電槽２内に滞留した水素ガスとを隔離し、水素ガスへの引火と、これによる、電槽２や蓋４の破損が抑制される。   The large-diameter portion 6b acts as a damming member that dams molten lead generated in the fusing portion 6a so as not to fall into the electrode plate group 3 when discharged with an abnormally large current, such as a short circuit between terminals. Have Further, the large-diameter portion 6b isolates the spark generated by the fusing of the fusing portion 6a from the hydrogen gas staying in the battery case 2, and ignites the hydrogen gas, thereby damaging the battery case 2 and the lid 4. Is suppressed.

また、溶断部６ａは、端子ブッシング５の内部に配置できるため、別途のスペースが不要であり、従来の鉛蓄電池と同一体積で、本発明の鉛蓄電池を得ることができる。また、前記した特許文献２で示された鉛蓄電池における、極柱とフューズの間、およびフューズと端子の間の配線が不要であるため、部品点数が削減される。また、従来の鉛蓄電池の蓋をそのまま使用できるため、部品の共用化が可能である。さらに、特許文献１や特許文献２で必要なエポキシ樹脂等の封止剤や、これを注入硬化するための工程が不要となることから、生産性の面で非常に好ましい。   Moreover, since the fusing part 6a can be arrange | positioned inside the terminal bushing 5, a separate space is unnecessary and the lead storage battery of this invention can be obtained by the same volume as the conventional lead storage battery. Further, in the lead storage battery shown in Patent Document 2 described above, wiring between the pole column and the fuse and between the fuse and the terminal is unnecessary, so that the number of parts is reduced. Moreover, since the lid of the conventional lead storage battery can be used as it is, parts can be shared. Furthermore, since a sealing agent such as an epoxy resin required in Patent Documents 1 and 2 and a process for injection-curing the same are not necessary, it is very preferable in terms of productivity.

なお、図１は、端子ブッシング基部５ａの下面が、基部被覆層４ａによって覆われた構成例を示したが、鉛蓄電池の個別の設計においては、図２に示したように、基部被覆層４ａを設けない場合がある。この場合、堰き止め部材としての大径部６ｂは、基部被覆層４ａに替えて、端子ブッシング基部５ａの内壁に対峙するよう配置すればよい。   FIG. 1 shows a configuration example in which the lower surface of the terminal bushing base 5a is covered with the base coating layer 4a. However, in the individual design of the lead storage battery, as shown in FIG. 2, the base coating layer 4a May not be provided. In this case, the large-diameter portion 6b as a damming member may be disposed so as to face the inner wall of the terminal bushing base portion 5a instead of the base coating layer 4a.

（第２の実施形態）
本発明の第２の実施形態による鉛蓄電池１１は、前記した本発明の第１の実施形態による鉛蓄電池１において、堰き止め部材として作用する大径部６ｂに替えて、図３に示したように、極柱６とは別体に設けられた堰き止め部材１２を用いた構成を有する。なお、その他の構成について、鉛蓄電池１と鉛蓄電池１１とは変わるところはない。そして、堰き止め部材１２は、大径部６ｂと同様の機能を有する。 (Second Embodiment)
The lead storage battery 11 according to the second embodiment of the present invention is the same as the lead storage battery 1 according to the first embodiment of the present invention shown in FIG. 3 in place of the large-diameter portion 6b acting as a blocking member. In addition, the dam member 12 provided separately from the pole 6 is used. In addition, about the other structure, there is no place where the lead storage battery 1 and the lead storage battery 11 change. And the dam member 12 has a function similar to the large diameter part 6b.

堰き止め部材１２は、溶断部６ａを電槽２内の空間から隔離すればよいので、極柱６に装着してもよく、基部被覆層４ａ、もしくは基部被覆層４ａを有さない場合には、端子ブッシング５の内壁に接合してもよい。   The damming member 12 may be attached to the pole column 6 because the fusing part 6a may be isolated from the space in the battery case 2, and when the base covering layer 4a or the base covering layer 4a is not provided. The terminal bushing 5 may be joined to the inner wall.

図３は、リング状の堰き止め部材１２を極柱６に装着し、堰き止め部材１２が基部被覆層４ａと接した状態とした例を示したものである。堰き止め部材１２は、極柱６の外周に設けた突起６ｃ等の位置決め手段によって、極柱６の所定位置に堰き止め部材１２が配置される。また、堰き止め部材１２を極柱６にインサート成型して、予め一体部品としてもよい。   FIG. 3 shows an example in which a ring-shaped damming member 12 is attached to the pole 6 and the damming member 12 is in contact with the base coating layer 4a. The damming member 12 is arranged at a predetermined position of the pole column 6 by positioning means such as a protrusion 6 c provided on the outer periphery of the pole column 6. Further, the damming member 12 may be insert-molded into the pole column 6 to be an integral part in advance.

堰き止め部材１２としては、電槽２や蓋４と同様、耐酸性を有した材質のもので構成すればよく、一例として、通常の始動用鉛蓄電池の電槽、蓋に用いられるような、ポリプロピレン樹脂を用いることができる。堰き止め部材１２は、溶断部６ａの溶融によって生じた溶融鉛合金を堰き止めるとともに、溶断部６ａの溶断によって生じたスパークの電槽２の内部に滞留した水素ガスへの引火を抑制するため、堰き止め部材１２と基部被覆層４ａ、基部被覆層４ａを有さない場合には、堰き止め部材１２と端子ブッシング５の内壁とを、好ましくは、隙間なく接した状態とする。   The damming member 12 may be composed of a material having acid resistance, similar to the battery case 2 and the lid 4, and as an example, as used in the battery case and lid of a normal starting lead-acid battery, Polypropylene resin can be used. The damming member 12 dams the molten lead alloy generated by the melting of the fusing part 6a, and suppresses the ignition of the hydrogen gas retained in the spark cell 2 caused by the fusing of the fusing part 6a. When the dam member 12 does not have the base coating layer 4a and the base coating layer 4a, the dam member 12 and the inner wall of the terminal bushing 5 are preferably in contact with each other without a gap.

例えば、堰き止め部材１２と基部被覆部４ａ、基部被覆層４ａを有さない場合には、堰き止め部材１２と端子ブッシング５の内壁とを熱溶着等の手段により隙間なく接合することができる。   For example, when the damming member 12, the base covering portion 4a, and the base covering layer 4a are not provided, the damming member 12 and the inner wall of the terminal bushing 5 can be joined without a gap by means such as heat welding.

また、堰き止め部材１２をフッ素系ゴム等の、電解液の希硫酸に耐えうる程度の対薬品性と、弾性を有した素材で構成することができる。電槽２と蓋４とが接合された状態で、堰き止め部材１２が基部被覆層４ａもしくは端子ブッシング５の内壁に押圧状態で圧接されていることが、溶断部６ａで発生するスパークが電槽２内の滞留水素ガスと隔離され、好ましい。   Further, the damming member 12 can be made of a material having elasticity and resistance to chemicals that can withstand the dilute sulfuric acid of the electrolytic solution, such as fluorine rubber. When the battery case 2 and the lid 4 are joined, the damming member 12 is pressed against the inner wall of the base coating layer 4a or the terminal bushing 5 in a pressed state. 2 is preferable because it is isolated from the staying hydrogen gas in 2.

また、堰き止め部材１２として弾性を有した素材を用いることにより、特に、極柱６の位置に製造ばらつきが生じた場合においても、このばらつきが堰き止め部材１２によって吸収され、堰き止め部材１２と基部被覆層４ａもしくは、堰き止め部材１２と端子ブッシング内壁との間の隙間を安定して閉じることができる。その結果、溶断部６ａで発生したスパークの水素ガスへの引火と、これによる電槽２および蓋４の破損がより効果的に抑制され、好ましい。   In addition, by using a material having elasticity as the damming member 12, in particular, even when a manufacturing variation occurs at the position of the pole 6, this variation is absorbed by the damming member 12, and the damming member 12 The gap between the base coating layer 4a or the damming member 12 and the terminal bushing inner wall can be stably closed. As a result, the ignition of the spark generated in the melted part 6a to hydrogen gas and the resulting damage to the battery case 2 and the lid 4 are more effectively suppressed, which is preferable.

本発明によれば、溶断部６ａを封止するためのエポキシ樹脂等の封止剤を必要としないため、封止剤を溶断部６ａに注入硬化するための工程が不要であり、生産性の向上に寄与することができる。   According to the present invention, since a sealing agent such as an epoxy resin for sealing the fusing part 6a is not required, a process for injecting and curing the sealing agent into the fusing part 6a is unnecessary, and productivity is improved. It can contribute to improvement.

なお、本発明では、堰き止め部材１２（堰き止め部材として作用する大径部６ｂを含む）と基部被覆層４ａもしくは、堰き止め部材１２と端子ブッシング５の内壁とは、必ずしも密着している必要はないが、その間隙は、少なくとも０．２ｍｍ以内とすることが望ましい。間隙がある場合でも、間隙寸法が０．２ｍｍ以下であれば、溶断部６ａで生じたスパークの、水素ガスへの引火伝播を効果的に抑制可能であり、本発明の効果を得ることができる。   In the present invention, the damming member 12 (including the large-diameter portion 6b that acts as the damming member) and the base coating layer 4a or the damming member 12 and the inner wall of the terminal bushing 5 need to be in close contact with each other. However, it is desirable that the gap be at least 0.2 mm or less. Even when there is a gap, if the gap size is 0.2 mm or less, it is possible to effectively suppress the ignition propagation of the spark generated in the fusing part 6a to the hydrogen gas, and the effects of the present invention can be obtained. .

また、始動用鉛蓄電池のように、常に振動衝撃が加わった状態で用いられる鉛蓄電池では、堰き止め部材（堰き止め部材１２と、堰き止め部材として作用する大径部６ｂを含む）と基部被覆層４ａとの接触部で振動による摩擦が生じるために、堰き止め部材の強度は、この摩擦の応力に耐える設計が必要となる。堰き止め部材と基部被覆層４ａとの間，もしくは、堰き止め部材と端子ブッシング５の間の、適切な量に設定された間隙の存在により、この摩擦応力が発生しないため、堰き止め部材１２の強度もさほど必要とされず、より薄型化したものを使用できる。   Further, in a lead storage battery that is used in a state in which a vibration shock is always applied, such as a starting lead storage battery, a damming member (including a damming member 12 and a large-diameter portion 6b that functions as a damming member) and a base cover are provided. Since friction due to vibration occurs at the contact portion with the layer 4a, the strength of the damming member needs to be designed to withstand the stress of this friction. Since this frictional stress is not generated due to the presence of an appropriate gap between the damming member and the base coating layer 4a or between the damming member and the terminal bushing 5, the damming member 12 The strength is not so much required, and a thinner one can be used.

また、堰き止め部材１２として、弾性を有した材料を用いることにより、このような摩擦応力は、堰き止め部材１２により熱エネルギーに変換され、堰き止め部材１２の劣化が抑制される。また、堰き止め部材１２自身の弾性によって堰き止め部材１２と基部被覆層４ａとの間、もしくは堰き止め部材１２と端子ブッシング５の内壁との間隙が埋められ、スパークの電槽２内部に滞留した水素ガスへの引火が抑制される程度に十分に狭く保持される。このような状態は、電池に振動が加わった状態でも安定に持続される。したがって、弾性を有した堰き止め部材１２を用いる構成は、特に、振動を受けた状態で使用される、自動車用の始動用鉛蓄電池に特に好ましい。   Further, by using an elastic material as the damming member 12, such frictional stress is converted into thermal energy by the damming member 12, and deterioration of the damming member 12 is suppressed. Further, the elasticity of the damming member 12 itself fills the gap between the damming member 12 and the base coating layer 4a or between the damming member 12 and the inner wall of the terminal bushing 5, and stays in the spark cell 2. It is kept narrow enough to prevent ignition of hydrogen gas. Such a state is stably maintained even when a vibration is applied to the battery. Therefore, the configuration using the damming member 12 having elasticity is particularly preferable for a start-up lead-acid battery for automobiles that is used in a state where it receives vibration.

（実施例１）
本発明例による電池と比較例による電池を作成し、これらの各電池を満充電状態とした後、さらに過充電することによって、電槽内部に水素ガスと酸素ガスとを滞留させ、この状態で、各電池の端子間を短絡させたときの状態を観察した。 (Example 1)
The batteries according to the examples of the present invention and the batteries according to the comparative examples were prepared, and after each of these batteries was fully charged, the hydrogen gas and oxygen gas were retained inside the battery case by further overcharging. The state when the terminals of each battery were short-circuited was observed.

本発明例の電池および比較例の電池ともに、ＪＩＳ Ｄ５３０１（始動用鉛蓄電池）で規定する５５Ｄ２３形（１２Ｖ４８Ａｈ）の液式の始動用鉛蓄電池である。以下、各電池の構成を説明する。   Both the battery of the example of the present invention and the battery of the comparative example are 55D23 type (12V48Ah) liquid-type lead storage batteries for start-up specified by JIS D5301 (start-up lead storage battery). Hereinafter, the configuration of each battery will be described.

（本発明例の電池Ａ）
本発明例の電池Ａは、図１に示した本発明の第１の実施形態による鉛蓄電池１に相当する電池である。極柱６の径ｄ1は１０．５ｍｍ、大径部６ｂの径ｄ3は１５．０ｍｍ、溶断部６ａの径ｄ2を８．５ｍｍとした。大径部６ｂは端子ブッシング５の下面を覆う基部被覆層４ａに０．２ｍｍの隙間で対峙している。なお、電解液面位置は、図１に示す線Ｘにあり、蓋４の内側面より２６．０ｍｍ（図１におけるｈ寸法）、下方に設定している。 (Battery A of the present invention example)
The battery A of the example of the present invention is a battery corresponding to the lead storage battery 1 according to the first embodiment of the present invention shown in FIG. The diameter d 1 of the pole column 6 was 10.5 mm, the diameter d 3 of the large diameter portion 6b was 15.0 mm, and the diameter d 2 of the fusing portion 6a was 8.5 mm. The large diameter portion 6b faces the base coating layer 4a covering the lower surface of the terminal bushing 5 with a gap of 0.2 mm. The electrolyte surface position is on line X shown in FIG. 1, and is set 26.0 mm (h dimension in FIG. 1) below the inner surface of the lid 4.

（本発明例の電池Ｂ）
本発明例の電池Ｂは、図２に示したように、本発明例の電池Ａにおいて、蓋４において、端子ブッシング５の下面を覆う基部被覆層４ａを有さず、端子ブッシング５の下面が蓋４より露出した状態となっている。極柱６は、前記した本発明例の電池Ａのものと同一形状・寸法を有している。大径部６ｂは、端子ブッシング５の下端で接した状態となっている。電解液面位置は、図２に示す線Ｘにあり、本発明例の電池Ａと同様、蓋４の内側面より２６．０ｍｍ（図２におけるｈ寸法）、下方に設定している。なお、大径部６ｂと端子ブッシング５の内壁との間隙寸法は、０．２ｍｍである。 (Battery B of the present invention example)
As shown in FIG. 2, the battery B of the present invention has no base coating layer 4 a that covers the lower surface of the terminal bushing 5 in the lid 4 in the battery A of the present invention example. It is in a state exposed from the lid 4. The pole 6 has the same shape and dimensions as those of the battery A of the present invention example. The large diameter portion 6 b is in contact with the lower end of the terminal bushing 5. The electrolyte surface position is on line X shown in FIG. 2, and is set 26.0 mm (h dimension in FIG. 2) below the inner surface of the lid 4 as in the battery A of the present invention example. The gap dimension between the large diameter portion 6b and the inner wall of the terminal bushing 5 is 0.2 mm.

（本発明例の電池Ｃ）
本発明例の電池Ｃは、図３に示した本発明の第２の実施形態による鉛蓄電池１１に相当する電池である。端子ブッシング５の下部を覆う基部被覆層４ａに当接する、厚み３．５ｍｍのポリプロピレン樹脂製の堰き止め部材１２が極柱６に装着されている。堰き止め部材１２は、極柱６の外周より突出する突起６ｃによって、極柱６への装着位置が位置決めされている。なお、堰き止め部材１２は、基部被覆層４ａに接した状態であるものの、両者は接合しておらず、一部で０．２ｍｍ以下の間隙が生じている。 (Battery C of the present invention example)
The battery C of the present invention example is a battery corresponding to the lead storage battery 11 according to the second embodiment of the present invention shown in FIG. A damming member 12 made of polypropylene resin having a thickness of 3.5 mm and in contact with the base coating layer 4 a covering the lower portion of the terminal bushing 5 is attached to the pole column 6. The mounting position of the damming member 12 on the pole column 6 is positioned by a projection 6 c that protrudes from the outer periphery of the pole column 6. Although the damming member 12 is in contact with the base coating layer 4a, both are not joined, and a gap of 0.2 mm or less is generated in part.

電池Ｃでは、極柱６の径ｄ1は１０．５ｍｍ、溶断部６ａの径ｄ2は８．５ｍｍである。また、電解液面位置は、図３に示す線Ｘにあり、電池ＡおよびＢと同様、蓋の内側面より２６．０ｍｍ（図３に示すｈ寸法）、下方に設定している。 In the battery C, the diameter d 1 of the pole column 6 is 10.5 mm, and the diameter d 2 of the fusing part 6 a is 8.5 mm. Further, the position of the electrolyte surface is on line X shown in FIG. 3 and is set 26.0 mm (h dimension shown in FIG. 3) below the inner surface of the lid, similarly to batteries A and B.

（本発明例の電池Ｄ）
本発明例の電池Ｄは、本発明例の電池Ｃにおいて、堰き止め部材１２と基部被覆層４ａとが、互いに熱溶着によって接合されたものである。その他の部分の構成は、電池Ｃに変わるところがない。 (Battery D of the present invention example)
The battery D of the present invention example is the battery C of the present invention example in which the damming member 12 and the base coating layer 4a are joined to each other by thermal welding. The configuration of the other parts is not changed to the battery C.

（本発明例の電池Ｅ）
本発明例の電池Ｅは、本発明例の電池Ｃにおいて、堰き止め部材１２をフッ素系のゴムで構成し、堰き止め部材１２が、それ自身の弾性によって、基部被覆層４ａを押圧した状態とし、両者を密着状態としたものである。堰き止め部材１２の厚みは３．５ｍｍである。その他の部分の構成は、電池Ｃに変わるところはない。 (Battery E of the present invention example)
In the battery E of the present invention, in the battery C of the present invention, the damming member 12 is made of fluorine-based rubber, and the damming member 12 presses the base coating layer 4a by its own elasticity. , Both are in close contact. The thickness of the damming member 12 is 3.5 mm. The configuration of the other parts is not changed to the battery C.

（比較例の電池Ｆ）
比較例の電池Ｆは、図４に示したように、本発明例の電池Ｃより堰き止め部材１２と、極柱６の外周に形成した突起６ｃを除去した電池である。極柱６の径ｄ1は、他の電池と同様、１０．５ｍｍであり、端子部５ｂと極柱６との溶接部より下方の位置に溶断部６ａが設けられている。溶断部６ａの径ｄ2は、他の電池と同様、８．５ｍｍとした。 (Comparative battery F)
As shown in FIG. 4, the battery F of the comparative example is a battery in which the blocking member 12 and the protrusion 6 c formed on the outer periphery of the pole column 6 are removed from the battery C of the example of the present invention. The diameter d 1 of the pole column 6 is 10.5 mm, as in other batteries, and a fusing portion 6 a is provided at a position below the welded portion between the terminal portion 5 b and the pole column 6. Diameter d 2 of the fusion portion 6a, like other cells, was 8.5 mm.

電解液面位置は、図４に示す線にあり、他の電池と同様、蓋４の内側面より２６．０ｍｍ（図３に示すｈ寸法）、下方に設定している。   The position of the electrolyte surface is on the line shown in FIG. 4, and is set 26.0 mm (h dimension shown in FIG. 3) below the inner surface of the lid 4, as with other batteries.

（比較例の電池Ｇ）
比較例の電池Ｇは、図５に示したように、他の部分よりも径が小さくした溶断部を設けず、極柱径ｄ1を１０．５ｍｍで一定とした極柱１３を用いた電池である。他の部分の構成は、すべて電池Ｆと同一である。 (Battery G of comparative example)
As shown in FIG. 5, the battery G of the comparative example is a battery using the pole column 13 in which the fusing part having a smaller diameter than the other parts is not provided and the pole column diameter d 1 is constant at 10.5 mm. It is. The configuration of the other parts is the same as that of the battery F.

上記の各電池について、温度２５℃雰囲気において、１４．５Ｖ、２５Ａの定電圧定電流充電を１２時間行った。その後、長期使用によって電解液面が大幅に低下したことを想定し、電池内から電解液を排出して、極板高さの５０％の位置とした。この状態で、極板の上部５０％が電解液から露出した状態となっている。   About each said battery, the constant voltage constant current charge of 14.5V and 25A was performed for 12 hours in temperature 25 degreeC atmosphere. Thereafter, assuming that the electrolyte surface level was significantly lowered by long-term use, the electrolyte solution was discharged from the battery to a position of 50% of the electrode plate height. In this state, the upper 50% of the electrode plate is exposed from the electrolyte.

電解液排出後、各電池を４．８Ａで１時間、定電流による過充電を行った。この過充電は、電池内部に水素ガスと酸素ガスが滞留した状態とするためのものである。この過充電終了直後に各電池の端子間を強制的に短絡し、電池の状態を確認した。なお、端子間の電圧を計測することによって、電池内部で溶断が発生した時間を計測した。また、試験の間、電池の様子を音声とともにビデオ撮影し、電槽や蓋が破損した場合には、その発生時間も計測した。これらの結果を表１に示す。   After discharging the electrolyte, each battery was overcharged with a constant current at 4.8 A for 1 hour. This overcharge is for making hydrogen gas and oxygen gas stay in the battery. Immediately after this overcharge was completed, the terminals of each battery were forcibly short-circuited to check the state of the battery. In addition, the time when the fusing occurred inside the battery was measured by measuring the voltage between the terminals. In addition, during the test, the state of the battery was video-recorded with sound, and when the battery case or lid was damaged, the occurrence time was also measured. These results are shown in Table 1.

Figure 2008117586
Figure 2008117586

表１に示した結果から、本発明例の電池Ａ〜Ｅは、比較例の電池Ｆ、Ｇで発生したような、短絡時の電池内部での水素ガス引火も、これによる電槽、蓋の破損も抑制されていた。また、本実施例では、堰き止め部材１２と基部被覆層４ａとの間を接合したかどうかに関わらず、電池Ｃ（接合なし）と電池Ｄ（接合あり）のいずれも水素ガスの引火が十分に抑制されていた。   From the results shown in Table 1, the batteries A to E of the examples of the present invention were also able to ignite hydrogen gas inside the battery at the time of short circuit, as occurred in the batteries F and G of the comparative examples. Damage was also suppressed. Further, in this embodiment, the hydrogen gas is sufficiently ignited in both the battery C (without bonding) and the battery D (with bonding) regardless of whether or not the damming member 12 and the base coating layer 4a are bonded. Was suppressed.

なお、電池Ａ〜Ｆでは、極柱の小径とした溶断部で溶断が発生していた。溶断部を設けない、電池Ｇでは、電池Ａ〜Ｆで設けた溶断部よりも若干下方の位置で溶断が発生していた。   In the batteries A to F, fusing occurred at the fusing part having a small diameter of the pole column. In the battery G in which no fusing part was provided, fusing occurred at a position slightly below the fusing part provided in the batteries A to F.

また、堰き止め部材を設けない、比較例の電池Ｆ、Ｇでは、極柱が溶融した溶融鉛は下方に落下し、正極板と負極板上で凝固していた。なお、この凝固鉛には、短絡痕があり、極柱が溶断して落下した鉛が、二次的な短絡を引き起こしていた。   Moreover, in the batteries F and G of the comparative example which do not provide a blocking member, the molten lead in which the pole column was melted dropped down and solidified on the positive electrode plate and the negative electrode plate. In addition, this solidified lead had a short circuit trace, and the lead which melted | disconnected by the pole pole was causing the secondary short circuit.

一方、本発明の電池Ａ〜Ｅでは、堰き止め部材１２もしくは大径部６ｂ上で、溶融鉛が凝固しており、溶融鉛の極板上への落下と、これによる二次的な短絡が抑制されていた。   On the other hand, in the batteries A to E of the present invention, the molten lead is solidified on the damming member 12 or the large-diameter portion 6b, and the fall of the molten lead onto the electrode plate and secondary short circuit caused thereby. It was suppressed.

本発明によれば、封止剤を用いることなく、鉛蓄電池の極柱に設定した溶断部のスパークの、水素ガスへの引火と、これによる電槽、蓋の破損が顕著に抑制できることがわかる。また、封止剤を注入硬化する工程を要しないため、封止剤注入用の設備や、封止剤硬化のための熱硬化炉といった設備が不要となる。また、硬化時間の確保も不要となる。さらには、電槽、蓋といった主要部品は、従来のものが共用できるため、生産性向上の面で非常に好ましい。   According to the present invention, it is understood that the spark of the fusing part set in the pole column of the lead storage battery and the breakage of the battery case and the lid due to this can be significantly suppressed without using a sealant. . Further, since a step of injecting and curing the sealant is not required, facilities such as a sealant injection facility and a thermosetting furnace for curing the sealant are unnecessary. In addition, it is not necessary to secure the curing time. Furthermore, since main parts, such as a battery case and a lid | cover, can share a conventional part, it is very preferable at the surface of productivity improvement.

以上、本発明によれば、短絡等の異常な大電流放電が遮断でき、かつ電池内部で発生したスパークの水素ガスへの引火と、これによる電槽、蓋の破損が抑制できることから、始動用鉛蓄電池をはじめとして、様々な用途の鉛蓄電池に好適である。   As described above, according to the present invention, an abnormal large current discharge such as a short circuit can be interrupted, and the ignition of sparks generated in the battery to hydrogen gas and the resulting damage to the battery case and the lid can be suppressed. It is suitable for lead storage batteries for various uses including lead storage batteries.

本発明の第１の実施形態による鉛蓄電池の要部断面を示す図The figure which shows the principal part cross section of the lead acid battery by the 1st Embodiment of this invention. 本発明の第１の実施形態による他の鉛蓄電池の要部断面を示す図The figure which shows the principal part cross section of the other lead acid battery by the 1st Embodiment of this invention. 本発明の第２の実施形態による鉛蓄電池の要部断面を示す図The figure which shows the principal part cross section of the lead acid battery by the 2nd Embodiment of this invention. 比較例による電池の要部断面を示す図The figure which shows the principal part cross section of the battery by a comparative example 比較例による他の電池の要部断面を示す図The figure which shows the principal part cross section of the other battery by a comparative example.

符号の説明Explanation of symbols

１ 鉛蓄電池
２ 電槽
３ 収納空間部
４ 蓋
４ａ 基部被覆層
５ 端子ブッシング
５ａ 端子ブッシング基部
５ｂ 端子部
６ 極柱
６ａ 溶断部
６ｂ 大径部
６ｃ 突起
１１ 鉛蓄電池
１２ 堰き止め部材
１３ 極柱 DESCRIPTION OF SYMBOLS 1 Lead acid battery 2 Battery case 3 Storage space part 4 Lid 4a Base coating layer 5 Terminal bushing 5a Terminal bushing base part 5b Terminal part 6 Polar pillar 6a Fusing part 6b Large diameter part 6c Protrusion 11 Lead storage battery 12 Damping member 13 Polar pillar

Claims (5)

蓋にインサート成型された筒状の端子ブッシングの先端に極柱が溶接された鉛蓄電池であり、前記端子ブッシングは、前記蓋にインサート成型された端子ブッシング基部と、前記蓋より突出する端子部を備え、前記端子部の先端において、前記端子ブッシングと前記極柱とが接合され、
前記端子ブッシング基部と前記極柱との間、もしくは、前記端子ブッシング基部の底面を覆い、かつ前記蓋と一体に設けられた基部被覆層と前記極柱との間の少なくとも一方に、
前記極柱が溶融して生じた溶融鉛を堰き止めるための堰き止め部材を配置し、
前記極柱の、前記堰き止め部材と前記端子部の先端との間に大電流放電時に溶断する溶断部を設け、
かつ、前記溶断部と前記堰き止め部材との間に溶融鉛を収納する収納空間部を設けたことを特徴とする鉛蓄電池。 A lead storage battery in which a pole column is welded to the tip of a cylindrical terminal bushing that is insert-molded into a lid, and the terminal bushing includes a terminal bushing base portion that is insert-molded into the lid and a terminal portion that protrudes from the lid. Comprising, at the tip of the terminal portion, the terminal bushing and the pole column are joined,
Between the terminal bushing base and the pole column, or at least one between the base coating layer and the pole column that covers the bottom surface of the terminal bushing base and is provided integrally with the lid,
Arranging a damming member for damming molten lead generated by melting the pole pole,
Provided with a fusing part for fusing at the time of a large current discharge between the damming member and the tip of the terminal part of the polar pole
And the storage space part which accommodates molten lead was provided between the said fusing part and the said damming member, The lead acid battery characterized by the above-mentioned. 前記堰き止め部材を、前記極柱の一部に、他の部分よりも径を大きくした大径部として設けたことを特徴とする請求項１に記載の鉛蓄電池。 The lead storage battery according to claim 1, wherein the damming member is provided in a part of the pole column as a large diameter part having a diameter larger than that of the other part. 前記堰き止め部材を、前記基部被覆層に接合したことを特徴とする請求項１１に記載の鉛蓄電池。 The lead storage battery according to claim 11, wherein the damming member is joined to the base coating layer. 前記堰き止め部材は、極柱に装着されたことを特徴とする請求項１もしくは請求項３に記載の鉛蓄電池。 The lead storage battery according to claim 1, wherein the damming member is attached to a pole column. 前記堰き止め部材は、極柱に装着され、かつ弾性を有し、前記堰き止め部材がその弾性によって、前記端子ブッシング基部もしくは前記基部被覆層に押圧状態で接することを特徴とする請求項１に記載の鉛蓄電池。 The damming member is attached to a pole column and has elasticity, and the damming member is in contact with the terminal bushing base or the base coating layer in a pressed state by the elasticity. Lead acid battery of description.
JP2006298636A 2006-11-02 2006-11-02 Lead storage battery Pending JP2008117586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006298636A JP2008117586A (en) 2006-11-02 2006-11-02 Lead storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006298636A JP2008117586A (en) 2006-11-02 2006-11-02 Lead storage battery

Publications (1)

Publication Number Publication Date
JP2008117586A true JP2008117586A (en) 2008-05-22

Family

ID=39503354

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006298636A Pending JP2008117586A (en) 2006-11-02 2006-11-02 Lead storage battery

Country Status (1)

Country Link
JP (1) JP2008117586A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014007076A (en) * 2012-06-25 2014-01-16 Gs Yuasa Corp Terminal structure for storage battery and storage battery
KR101355063B1 (en) * 2011-03-21 2014-01-24 브로드콤 코포레이션 In-house location based services
US9901513B2 (en) 2006-10-27 2018-02-27 Otsuka Pharmaceutical Factory, Inc. Drug solution having reduced dissolved oxygen content, method of producing the same and drug solution containing unit having reduced dissolved oxygen content
US10211445B2 (en) * 2014-09-09 2019-02-19 Gs Yuasa International Ltd. Lead-acid battery

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49148426U (en) * 1973-04-20 1974-12-21
JPS5682876U (en) * 1979-11-30 1981-07-04
JPS6196660A (en) * 1984-10-17 1986-05-15 Matsushita Electric Ind Co Ltd Lead-acid battery
JPS61162950U (en) * 1985-03-29 1986-10-08
JPH10270010A (en) * 1997-03-26 1998-10-09 Aero Battery Corp:Kk Storage battery with protection device
JP2000011987A (en) * 1998-06-17 2000-01-14 Furukawa Battery Co Ltd:The Lead-acid battery and manufacture thereof
JP2003007281A (en) * 2001-06-25 2003-01-10 Shin Kobe Electric Mach Co Ltd Lead-acid battery
JP2003017035A (en) * 2001-07-03 2003-01-17 Japan Storage Battery Co Ltd Lead-acid battery
JP2003242946A (en) * 2002-02-20 2003-08-29 Yuasa Corp Terminal structure of lead-acid storage battery

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49148426U (en) * 1973-04-20 1974-12-21
JPS5682876U (en) * 1979-11-30 1981-07-04
JPS6196660A (en) * 1984-10-17 1986-05-15 Matsushita Electric Ind Co Ltd Lead-acid battery
JPS61162950U (en) * 1985-03-29 1986-10-08
JPH10270010A (en) * 1997-03-26 1998-10-09 Aero Battery Corp:Kk Storage battery with protection device
JP2000011987A (en) * 1998-06-17 2000-01-14 Furukawa Battery Co Ltd:The Lead-acid battery and manufacture thereof
JP2003007281A (en) * 2001-06-25 2003-01-10 Shin Kobe Electric Mach Co Ltd Lead-acid battery
JP2003017035A (en) * 2001-07-03 2003-01-17 Japan Storage Battery Co Ltd Lead-acid battery
JP2003242946A (en) * 2002-02-20 2003-08-29 Yuasa Corp Terminal structure of lead-acid storage battery

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9901513B2 (en) 2006-10-27 2018-02-27 Otsuka Pharmaceutical Factory, Inc. Drug solution having reduced dissolved oxygen content, method of producing the same and drug solution containing unit having reduced dissolved oxygen content
KR101355063B1 (en) * 2011-03-21 2014-01-24 브로드콤 코포레이션 In-house location based services
JP2014007076A (en) * 2012-06-25 2014-01-16 Gs Yuasa Corp Terminal structure for storage battery and storage battery
US10211445B2 (en) * 2014-09-09 2019-02-19 Gs Yuasa International Ltd. Lead-acid battery

Similar Documents

Publication Publication Date Title
JP5037527B2 (en) Secondary battery
JP5319596B2 (en) Current interruption element and secondary battery provided with the same
JP4619221B2 (en) Can-type secondary battery
KR100601500B1 (en) Lithium ion secondary battery having temperature and pressure sensing type
KR100477752B1 (en) Protector and lithium secondary battery having the same
JP3187152U (en) Power battery safety top cover
JP2010267615A (en) Rechargeable battery
JP2006313743A (en) Secondary battery
JP2006012602A (en) Storage battery
JP2006228520A (en) Secondary battery
JP2008117586A (en) Lead storage battery
KR100591430B1 (en) Secondary battery
KR101340020B1 (en) Rechargeable battery
WO2022152126A1 (en) Button cell having safety device and manufacturing method for button cell
JP2005346943A (en) Battery pack
US20020081484A1 (en) Safety vent for extended battery storage
JP5082380B2 (en) Lead acid battery
JP2000208023A (en) Explosion-proof protection device with fuse function, rechargeable battery using same, and portable electronic apparatus using the rechargeable battery
JP5163014B2 (en) Lead acid battery
KR20050113985A (en) Secondary battery
JPH1064497A (en) Battery
KR100515355B1 (en) Secondary battery
KR100581661B1 (en) PCM and PCM moulding method of lithium ion polymer battery
KR100490544B1 (en) Secondary battery
JP2005158267A (en) Sealed type secondary battery

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20091014

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20091112

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20111212

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120117

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120228

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20121023