JPH01200551A - Sealed battery - Google Patents
Sealed batteryInfo
- Publication number
- JPH01200551A JPH01200551A JP63024266A JP2426688A JPH01200551A JP H01200551 A JPH01200551 A JP H01200551A JP 63024266 A JP63024266 A JP 63024266A JP 2426688 A JP2426688 A JP 2426688A JP H01200551 A JPH01200551 A JP H01200551A
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- valve
- anode terminal
- sealing plate
- hole
- 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
- 238000007789 sealing Methods 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 1
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 1
- FBDMJGHBCPNRGF-UHFFFAOYSA-M [OH-].[Li+].[O-2].[Mn+2] Chemical compound [OH-].[Li+].[O-2].[Mn+2] FBDMJGHBCPNRGF-UHFFFAOYSA-M 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明はニッケルー力Ｆ ｅラム蓄電池、リチウムー二
酸化マンガン電池等の安全弁機構を備えた密閉式電池に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a sealed battery equipped with a safety valve mechanism, such as a nickel-Fe ram storage battery or a lithium-manganese dioxide battery.
仲） 従来の技術
ニッケルーカドミウム蓄電池、リチウム一二酸化マンガ
ン電池などの密閉式電池は、電池内部のガス圧が上昇し
た場合、電池の破裂を防ぐために安全弁機構を有してい
る。この安全弁の構造としては、実公昭６１−８５４４
号公報に記載されたように、帽子状の陽極端子１と、封
口板２に囲まれた空間に、ゴムから々る弁体６を配置せ
る構造が示されている（第３図参照）。この安全弁の作
動は、電池内部のガス圧が上昇し、安全弁作動圧力以上
となった時、内部のガスは封口板２に形設された弁孔２
ａを介して弁体３をおし上げて流出し、陽極端子１に形
設された排気口１ａから電池外部へ放出される。Conventional technology Sealed batteries such as nickel-cadmium storage batteries and lithium manganese monodioxide batteries have a safety valve mechanism to prevent the battery from bursting if the gas pressure inside the battery increases. The structure of this safety valve is as follows:
As described in the publication, a structure is shown in which a valve body 6 made of rubber is disposed in a space surrounded by a cap-shaped anode terminal 1 and a sealing plate 2 (see FIG. 3). This safety valve operates when the gas pressure inside the battery rises and exceeds the safety valve operating pressure.
It flows out by pushing down the valve body 3 through the a, and is discharged to the outside of the battery from the exhaust port 1a formed in the anode terminal 1.
このような安全弁構造において、所定の作動圧力を得る
ため、弁体３が封口板２の弁孔２ａに所定の圧力で押圧
されている。この時、弁体３は押圧力により横方向（第
６図においては封口板２の外径方向）に変形する。従り
て、弁体３の外径寸法は、陽極端子１の内径よりあらか
じめ小さくしておく必要がある。又、弁体３が変形して
も陽極端子１に形設された排気口１ａを塞がないように
する必要がある。更に、電池内部のガスがスムースに電
池外部へ放出されるためにも、弁体３の外径と陽極端子
１の内径の寸法差は十分に確保しておかねばならない。In such a safety valve structure, the valve body 3 is pressed against the valve hole 2a of the sealing plate 2 with a predetermined pressure in order to obtain a predetermined operating pressure. At this time, the valve body 3 is deformed in the lateral direction (in the outer diameter direction of the sealing plate 2 in FIG. 6) due to the pressing force. Therefore, the outer diameter of the valve body 3 must be smaller than the inner diameter of the anode terminal 1 in advance. Further, even if the valve body 3 is deformed, it is necessary to prevent the exhaust port 1a formed in the anode terminal 1 from being blocked. Furthermore, in order for the gas inside the battery to be smoothly discharged to the outside of the battery, a sufficient dimensional difference between the outer diameter of the valve body 3 and the inner diameter of the anode terminal 1 must be ensured.
上述した如く、弁体３と陽極端子１の内径にギャップを
設けているため、次のような問題点がある。As described above, since there is a gap between the inner diameters of the valve body 3 and the anode terminal 1, the following problems arise.
安全弁作動圧を安定にするためには、弁体３は封口板２
の弁孔２ａの同軸上に位置することが必要である。とこ
ろが弁体３の外径と陽極端子１の内径にギャップがある
ため、弁体３の付性が一定とならず、封口板２に形設さ
れた弁孔２ａに対し、センターずれを生じ、安全弁の作
動圧が安定しない。In order to stabilize the safety valve operating pressure, the valve body 3 must be connected to the sealing plate 2.
It is necessary that the valve hole 2a be located coaxially with the valve hole 2a. However, since there is a gap between the outer diameter of the valve body 3 and the inner diameter of the anode terminal 1, the adhesion of the valve body 3 is not constant, and the center of the valve body 3 is misaligned with respect to the valve hole 2a formed in the sealing plate 2. The operating pressure of the safety valve is unstable.
ｅ→ 発明が解決しようとする課題
本発明は前記問題点に鑑みなされ念ものであって、弁体
が弁孔に対して位置ずれを生じ安全弁作動圧が不安定と
なることを防止し、信頼性の高い安全弁機構を備えた密
閉式電池を提供することを課題とする。e→ Problems to be Solved by the Invention The present invention has been developed in view of the above-mentioned problems, and is intended to prevent the safety valve operating pressure from becoming unstable due to misalignment of the valve body with respect to the valve hole, and to improve reliability. An object of the present invention is to provide a sealed battery equipped with a highly reliable safety valve mechanism.
に）課題を解決するための手段
本発明の密閉式電池は、内側面てより形成される多角柱
状の内部空間を有すると共に排気口が形成された陽極端
子と、円外周を有するゴム状弾性体からなる弁体と、弁
孔を有する封口板がらなり、前記弁体の円外周が前記陽
極端子の内側面と当接しており、前記弁体が前記弁孔の
同軸上に位置すると共に前記弁体中央底部が前記封口ρ
弁孔を密閉しており、前記陽極端子と前記封口板とが溶
接固定された、ことを特徴とするものである。B) Means for Solving the Problems The sealed battery of the present invention has an anode terminal having a polygonal column-shaped internal space formed by an inner surface and an exhaust port, and a rubber-like elastic body having a circular outer periphery. and a sealing plate having a valve hole, the outer circumference of the valve body is in contact with the inner surface of the anode terminal, and the valve body is located coaxially with the valve hole, and the sealing plate has a valve hole. The center bottom of the body is the sealing ρ
The valve hole is sealed, and the anode terminal and the sealing plate are fixed by welding.
また、内側面により形成される円柱状の内部空間を有す
ると共に排気口が形成された陽極端子と、円外周に環状
凸部を有するゴム状弾性体からなる弁体と、弁孔を有す
る封口板からなり、前記弁体の環状凸部が前記陽極端子
の内側面と当接しており、前記弁体が前記弁孔の同軸上
に位置すると共に前記弁体中央底部が前記封口板の弁孔
を密閉しており、前記陽極端子と前記封口板とが溶接固
定されるように構成しても良い。Further, the anode terminal has a cylindrical internal space formed by the inner surface and has an exhaust port formed therein, a valve body made of a rubber-like elastic body having an annular convex portion on the outer periphery, and a sealing plate having a valve hole. The annular convex portion of the valve body is in contact with the inner surface of the anode terminal, the valve body is located coaxially with the valve hole, and the center bottom of the valve body is in contact with the valve hole of the sealing plate. The anode terminal may be sealed and the anode terminal and the sealing plate may be fixed by welding.
（ホ）作 用
本願の構成とすることで、弁体の弁孔に対する位置決め
が出来、安定した安全弁の作動圧が得られる。(e) Effect With the configuration of the present application, the valve body can be positioned with respect to the valve hole, and stable operating pressure of the safety valve can be obtained.
（へ）実施例
〔第１実施例〕
第１図ａは本発明に係る安全弁体４の上面図、第１図す
は第１図ａのＡ−Ａ断面図、第１図Ｃは第１図ａのＢ−
ｍ断面図を示す。第１図において１は四角柱状の凸部と
、封口板２と溶接するための鍔部を有する陽極端子であ
り、内側面は四角柱状であって内部空間を形成している
。そして、陽極端子１の凸部の下底部から鍔部にかけて
、切れこみが入っており、排気口１ａを形成している。(F) Embodiment [First Embodiment] FIG. 1a is a top view of the safety valve body 4 according to the present invention, FIG. 1 is a sectional view taken along line AA in FIG. B- in diagram a
An m cross-sectional view is shown. In FIG. 1, reference numeral 1 denotes an anode terminal having a convex portion in the shape of a square prism and a flange for welding to the sealing plate 2, and its inner surface is shaped like a square prism to form an internal space. A notch is provided from the bottom of the protrusion of the anode terminal 1 to the flange, forming an exhaust port 1a.
３は円柱状のゴム製の弁体であり、陽極端子１の内側面
に当接するとともに、陽極端子１と封口板２とを溶接固
定した場合、形成される内部空間の、高さより若冠高い
寸法を有している。そしてこの弁体３は弁孔２ａの同軸
上に位置して訃り、弁体３の中央底部が封口板２の弁孔
２ａを密閉、閉塞している。また２は封口板であって、
中央に弁孔２ａを有するものである。封口板２は鍔部で
陽極端子１に溶接されるとともに、封口板２と陽極端子
１とで構成される内部空間に弁体３を保持している。こ
のようにして構成された安全弁体４は、電池外装缶に絶
縁バッキングを介して固定され、密閉式電池を構成して
いる。このようにすることで電池の安全弁作動圧が安定
化するとともに、弁体の挿入に関して工程上何ら問題は
ない。この実施例において、陽極端子は四角柱状とした
が、正五角柱、正六角柱等の多角柱状としても良い。3 is a cylindrical rubber valve body that contacts the inner surface of the anode terminal 1 and is higher than the height of the internal space that will be formed when the anode terminal 1 and the sealing plate 2 are welded and fixed. It has dimensions. The valve body 3 is positioned coaxially with the valve hole 2a, and the central bottom of the valve body 3 seals and closes the valve hole 2a of the sealing plate 2. Further, 2 is a sealing plate,
It has a valve hole 2a in the center. The sealing plate 2 is welded to the anode terminal 1 at the flange, and holds the valve body 3 in an internal space constituted by the sealing plate 2 and the anode terminal 1. The safety valve body 4 configured in this way is fixed to the battery exterior can via an insulating backing, and constitutes a sealed battery. By doing this, the operating pressure of the safety valve of the battery is stabilized, and there is no problem in the process regarding insertion of the valve body. In this embodiment, the anode terminal is shaped like a square prism, but it may also be shaped like a polygonal prism such as a regular pentagonal prism or a regular hexagonal prism.
〔第２実施例〕
第２図ａは他の本発明に係る安全弁体の上面図、第２図
すは第２図ａの縦断面図、第２図Ｃはここで用いられる
弁体の上面図、第２図ｄは第２図Ｃの側面図である。[Second Embodiment] Fig. 2a is a top view of a safety valve body according to another present invention, Fig. 2 is a vertical sectional view of Fig. 2a, and Fig. 2C is a top view of the valve body used here. FIG. 2d is a side view of FIG. 2C.
この安全弁体４の特徴は、ゴム製の弁体６の外周に環状
凸部３ａが形成されており、この環状凸部３ａが陽極端
子１の内側面に当接している点である。このようにする
ことで、前記第１実施例と同様の効果が期得できる。又
、この実施例で陽極端子の凸部は円柱状であるが、前記
第１実施例の如く、四角柱状等の多角柱状としても、何
ら問題はない。A feature of this safety valve body 4 is that an annular convex portion 3a is formed on the outer periphery of a rubber valve body 6, and this annular convex portion 3a is in contact with the inner surface of the anode terminal 1. By doing so, the same effects as in the first embodiment can be obtained. Further, although the convex portion of the anode terminal is cylindrical in this embodiment, it may also be in the shape of a polygonal column such as a quadrangular column as in the first embodiment without any problem.
（ト）発明の効果
本発明によれば安全弁の作動圧を安定化させるとともに
信頼性の高い安全弁機構を提供でき、かかる機構を用い
た密閉式電池の性能を向上しうるのでその工業的価値は
極めて大きい。(G) Effects of the Invention According to the present invention, it is possible to stabilize the operating pressure of a safety valve and provide a highly reliable safety valve mechanism, and it is possible to improve the performance of a sealed battery using such a mechanism, so its industrial value is high. Extremely large.
第１図及び第２図はいずれも本発明の安全弁体を示し、
第１図ａは上面図、第１図すはＡ−Ａ縦断面図、第１図
ＣはＢ−Ｂ縦断面図、第２図ａは上面図、第２図すは縦
断面図、第２図Ｃは弁体の上面図、第２図ｄは弁体の側
面図、第３図は従来の安全弁体を示し、第３図ａは上面
図、第３図すは縦断面図である。
１・・・陽極端子、 １ａ・・・排気口、 ２・・・
封口板、２ａ・・・弁孔、 ５・・・弁体、 ６ａ・
・・環状凸部、４・・・安全弁体。1 and 2 both show the safety valve body of the present invention,
Fig. 1a is a top view, Fig. 1 is an A-A longitudinal sectional view, Fig. 1C is a B-B longitudinal sectional view, Fig. 2a is a top view, Fig. 2 is a longitudinal sectional view, Figure 2 C is a top view of the valve body, Figure 2 d is a side view of the valve body, Figure 3 shows a conventional safety valve body, Figure 3 a is a top view, and Figure 3 is a vertical sectional view. . 1...Anode terminal, 1a...Exhaust port, 2...
Sealing plate, 2a... Valve hole, 5... Valve body, 6a.
...Annular convex portion, 4...Safety valve body.
Claims (2)
すると共に排気口が形成された陽極端子と、円外周を有
するゴム状弾性体からなる弁体と、弁孔を有する封口板
からなり、 前記弁体の円外周が前記陽極端子の内側面と当接してお
り、 前記弁体が前記弁孔の同軸上に位置すると共に前記弁体
中央底部が前記封口板の弁孔を密閉しており、 前記陽極端子と前記封口板とが溶接固定されたことを特
徴とする密閉式電池。(1) Consisting of an anode terminal having a polygonal column-shaped internal space formed by an inner surface and an exhaust port, a valve body made of a rubber-like elastic body having a circular outer periphery, and a sealing plate having a valve hole; The outer circumference of the valve body is in contact with the inner surface of the anode terminal, the valve body is located coaxially with the valve hole, and the center bottom of the valve body seals the valve hole of the sealing plate. . A sealed battery, wherein the anode terminal and the sealing plate are fixed by welding.
ると共に排気口が形成された陽極端子と、円外周に環状
凸部を有するゴム状弾性体からなる弁体と、 弁孔を有する封口板からなり、 前記弁体の環状凸部が前記陽極端子の内側面と当接して
おり、 前記弁体が前記弁孔の同軸上に位置すると共に前記弁体
中央底部が前記封口板の弁孔を密閉しており 前記陽極端子と前記封口板とが溶接固定されたことを特
徴とする密閉式電池。(2) An anode terminal having a cylindrical internal space formed by an inner surface and an exhaust port, a valve body made of a rubber-like elastic body having an annular protrusion on the outer circumference, and a sealing hole having a valve hole. The annular convex portion of the valve body is in contact with the inner surface of the anode terminal, the valve body is located coaxially with the valve hole, and the center bottom of the valve body is in contact with the valve hole of the sealing plate. 1. A sealed battery, wherein the anode terminal and the sealing plate are fixed by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63024266A JP2703249B2 (en) | 1988-02-04 | 1988-02-04 | Sealed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63024266A JP2703249B2 (en) | 1988-02-04 | 1988-02-04 | Sealed battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01200551A true JPH01200551A (en) | 1989-08-11 |
| JP2703249B2 JP2703249B2 (en) | 1998-01-26 |
Family
ID=12133425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63024266A Expired - Lifetime JP2703249B2 (en) | 1988-02-04 | 1988-02-04 | Sealed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2703249B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58212055A (en) * | 1982-06-02 | 1983-12-09 | Matsushita Electric Ind Co Ltd | Sealed alkaline storage battery |
| JPS60118867U (en) * | 1984-01-19 | 1985-08-10 | 松下電器産業株式会社 | Sealed battery safety valve device |
| JPS61126566U (en) * | 1985-01-28 | 1986-08-08 | ||
| JPS6421966U (en) * | 1987-07-31 | 1989-02-03 | ||
| JPH01115162U (en) * | 1988-01-29 | 1989-08-02 |
-
1988
- 1988-02-04 JP JP63024266A patent/JP2703249B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58212055A (en) * | 1982-06-02 | 1983-12-09 | Matsushita Electric Ind Co Ltd | Sealed alkaline storage battery |
| JPS60118867U (en) * | 1984-01-19 | 1985-08-10 | 松下電器産業株式会社 | Sealed battery safety valve device |
| JPS61126566U (en) * | 1985-01-28 | 1986-08-08 | ||
| JPS6421966U (en) * | 1987-07-31 | 1989-02-03 | ||
| JPH01115162U (en) * | 1988-01-29 | 1989-08-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2703249B2 (en) | 1998-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1011156B1 (en) | Battery cell with a safety valve | |
| EP0573998B1 (en) | Sealed battery | |
| KR100300405B1 (en) | A cap assy of second battery | |
| HK1007633B (en) | Sealed battery | |
| EP1134818A4 (en) | Safety device for sealed battery and sealed battery using it | |
| CN1323443C (en) | End Cap Assemblies for Electrochemical Cells | |
| US20020086201A1 (en) | Vent valve and a storage cell including it | |
| US5693430A (en) | Nonaqueous electrolytic secondary battery | |
| JP2653832B2 (en) | Sealed battery | |
| US4556612A (en) | Resealable vent valve for a rechargeable battery | |
| US6733917B1 (en) | Seal for pressurized container with a rupturable seal | |
| US3051769A (en) | Leakproof primary or secondary celland process for manufacturing the same | |
| JP5054866B2 (en) | Low profile breathable seal for electrochemical cells | |
| KR20040110599A (en) | Secondary battery and method for fabricating safety valve thereof | |
| EP0333023B1 (en) | Metal jacket and dry cell using the same | |
| JPH01200551A (en) | Sealed battery | |
| JP2003229102A (en) | Battery pack | |
| JP3257700B2 (en) | Lithium ion secondary battery | |
| GB2252198A (en) | Resealable vent in batteries | |
| CA2165152A1 (en) | Safety vent for a sealed prismatic electrical device | |
| JPH05819B2 (en) | ||
| US20020132160A1 (en) | Battery | |
| JP2006004698A (en) | Coin battery | |
| JPH0644025Y2 (en) | Safety valve device for organic electrolyte battery | |
| US3932196A (en) | Primary dry cell with gas-venting passageway through the cathode mix |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081003 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081003 Year of fee payment: 11 |