JPS6056363A - Sealed battery - Google Patents

Sealed battery

Info

Publication number
JPS6056363A
JPS6056363A JP58164745A JP16474583A JPS6056363A JP S6056363 A JPS6056363 A JP S6056363A JP 58164745 A JP58164745 A JP 58164745A JP 16474583 A JP16474583 A JP 16474583A JP S6056363 A JPS6056363 A JP S6056363A
Authority
JP
Japan
Prior art keywords
battery
sealing plate
plate
sealing
gasket
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
Application number
JP58164745A
Other languages
Japanese (ja)
Other versions
JPH0118542B2 (en
Inventor
Takashi Tanaka
俊 田中
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP58164745A priority Critical patent/JPS6056363A/en
Publication of JPS6056363A publication Critical patent/JPS6056363A/en
Publication of JPH0118542B2 publication Critical patent/JPH0118542B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/147Lids or covers
    • H01M50/166Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/172Arrangements of electric connectors penetrating the casing
    • H01M50/174Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/179Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/172Arrangements of electric connectors penetrating the casing
    • H01M50/174Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30Arrangements for facilitating escape of gases
    • H01M50/317Re-sealable arrangements
    • H01M50/325Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

PURPOSE:To improve the sealing performance of a sealed battery by fixing an anode terminal having a safety valve in the central penetrating hole of a sealing plate with an annular gasket interposed by the use of an annular pressing plate and welding the outer periphery of the sealing plate to an exterior case also serving as a negative terminal to seal the battery. CONSTITUTION:A sealing plate 7' for a sealed battery has a penetrating hole in its center and a concave area is formed in the periphery of the penetrating hole. Next, after an anode terminal 6'' having a safety valve is placed in the concave area with an insulating gasket 5' interposed, an annular pressing plate 10 having an L-shaped cross section is fixed to the sealing plate 7' by welding. Then, the pressing plate 10 is inwardly curled with a metallic press mold to strongly press the gasket 5' thereby holding the anode terminal 6'' by the gasket 5'. After that, the periphery of the sealing plate 7' is welded to an exterior case 4'', thereby constituting a complete battery. As a result, the safety valve can be easily installed to make the electrode terminal and the liquid leakage resistance of the battery is improved. Moreover, such a procedure can be easily applied to a non- cylindrical battery.

Description

【発明の詳細な説明】 (イ) 産業上の利用分野 本発明は外装ケースと封口板とを線溶接にで封LI し
てなる密閉形電池に関し、特に封目板に設()られる電
極端子部の取付構造に関する。
[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a sealed battery formed by sealing an exterior case and a sealing plate by line welding, and particularly relates to an electrode terminal provided on the sealing plate. Regarding the mounting structure of the part.

く口)従来技術 第1区は従来の密閉形電池の断面図であり、第2図は従
来の他の密閉形電池の要部断面図Cある。従来の密閉形
電池をこれらの図面を用い以下に説明する。
(Example) Prior Art Section 1 is a sectional view of a conventional sealed battery, and FIG. 2 is a sectional view C of a main part of another conventional sealed battery. A conventional sealed battery will be explained below using these drawings.

従来の密閉電池は一般に第1図に示す如く、陽極Fi(
1)と陰極板(2)との間にセパレータ(3〉り介して
渦巻状に巻回してなる発電素体を内筒状金属製外装ケー
ス(4)に挿入し、電解液のl七人等を行なった後、外
装ケース(4)の開口部を、−ム加工し、この開口部を
かしめることにより、安全ブtに1電極端子部(6)と
外装ゲ〜ス(4)の間に樹脂製の絶縁バッキング(5)
を介して封口されている。
Conventional sealed batteries generally have an anode Fi (as shown in Figure 1).
Insert the power generating element formed by spirally winding the separator (3) between 1) and the cathode plate (2) into the inner cylindrical metal exterior case (4), and fill with electrolyte. After performing the above steps, the opening of the exterior case (4) is machined and the opening is caulked to connect the 1st electrode terminal (6) and the exterior housing (4) to the safety button. Resin insulation backing (5) between
It is sealed through.

このような封1」フ5法は通常メカニカル4tA肥/−
ルと呼はれ、外装う一スと!極端子との電気的絶縁と密
封効果を有し、円筒形状の電池では殆んとこの方法によ
る密封が行なわれている。
Such sealing method is usually mechanical 4tA fertilizer/-
It's called Le, and it's exterior! This method provides electrical insulation and a sealing effect from the electrode terminals, and this method is used to seal most cylindrical batteries.

しかしながら、第1図に示す密閉形電池は外装ケースの
シーム加工部分と外装ケースの開「I縁の間に電極端子
部をバンキングを介しで固定することにより封口してい
るため、電極端子部下面とバッキングの密着性及び外装
ケースのシーム加工部分とバンキングの密着性が悪く、
電解l夜の耐漏液性が良好であるとは言えず、また、外
装ケースのシーム加工部分より下に発電素体が位置する
ため、電池内の余剰空間が広く、高容量の電池を得る。
However, the sealed battery shown in Fig. 1 is sealed by fixing the electrode terminal part between the seam part of the outer case and the opening edge of the outer case via banking, so the lower surface of the electrode terminal is sealed. The adhesion between the backing and the seam of the outer case and the banking is poor.
It cannot be said that leakage resistance during electrolysis is good, and since the power generation body is located below the seam part of the outer case, there is a large surplus space inside the battery, resulting in a high capacity battery.

−とはできない。更にこの封口)法では非真円外形状の
電池、例えば長円筒、楕円向、四角的のような形状の’
lの封印は外装ケースのシーム加工が活性学的に困難で
あるため用いることが〔きない。
- cannot be said. Furthermore, this sealing method can be used for batteries with non-perfect circular shapes, such as long cylinders, ellipticals, square shapes, etc.
Seal No. 1 cannot be used because it is difficult to seam the outer case.

1−記問題点を解決するものとして第2UAに示ず様’
j件閉形電池が提案され工いる。この密閉形電池は封目
板(7)の中央透孔部に絶縁バッキング(8)を介して
電極端子(6゛)を挿入し、電極端子下部の円餉部材を
ワッシャー(9)を介して外側にかしめる事で電気的絶
縁と密封効果を持l−ゼ、封「」板(7)と外装ケース
(4)の端部同法、をレーザーシーム溶接やガ、々アー
ク溶接等で線溶接しで封1」されるものであね、ソート
加工を要しないため発電要素を収納する空間が広く高容
量の電池が得しれ、また非真円″鍍形状の電池にも適用
することが1゛きる。
There is no indication in the 2nd UA as a solution to the problem described in 1-.
Several closed batteries have been proposed and are being developed. In this sealed battery, the electrode terminal (6゛) is inserted into the center hole of the sealing plate (7) through the insulating backing (8), and the circular hook member at the bottom of the electrode terminal is inserted through the washer (9). The ends of the seal plate (7) and the outer case (4) are caulked outward to provide electrical insulation and a sealing effect. Since it is sealed by welding and does not require sorting, a battery with a large capacity and a large space for storing the power generation elements can be obtained, and it can also be applied to batteries with a non-perfect round shape. 1 is finished.

ところが、第2図に示諮れる密閉形電池に於いても、■
陽極端子部に安全弁を設けると2が困難、■絶縁バッキ
ングの締めっ0が不十分なため密封性が悪く電解液の漏
れ現象が発生4ることがある等の欠点がある。
However, even in the sealed battery shown in Figure 2, ■
If a safety valve is provided at the anode terminal, it is difficult to do so, and the insulating backing is not sufficiently tightened, resulting in poor sealing and electrolyte leakage.

(ハ)発明の目的 本発明はかかる点に鑑み耐漏液性が向上し、」]:つ安
全弁を電極端子部に設けることが可能(J・〕す、非真
円筒形状の電池にも適用=J能な密閉形電池を提供せし
めんとするものである。
(c) Purpose of the Invention In view of the above points, the present invention improves leakage resistance, allows a safety valve to be provided at the electrode terminal portion, and is also applicable to non-cylindrical batteries. The purpose of this invention is to provide a sealed battery with high performance.

(二〉 発明の構成 本発明の密閉形電池は、−極性電極の端子HH1;を兼
ねる金属性の外装ケースと該ケースの開(」部2閉烹す
る封口板とを線溶接にで封目し〔なるイ)のに於いて、
前記封LI板に溶接された環状押LH板の孔縁と前記月
11板に設けられた透孔の孔縁との間に絶縁パ・/キン
グを介して他極性電極端子部を挾持してなるものである
(2) Structure of the Invention The sealed battery of the present invention is constructed by wire welding a metal outer case that also serves as the terminal HH1 of the -polar electrode and a sealing plate that closes the open part 2 of the case. In the course of
An electrode terminal portion of the other polarity is sandwiched between the hole edge of the annular pressed LH plate welded to the sealing LI plate and the hole edge of the through hole provided in the month 11 plate via an insulating pad. It is what it is.

(ホ)実施例 大発明の一実施例を図面を用いて以下に説明りる。第3
図は本発明電池の要部断面図、第4図(A)(B)及び
第5図(A >(B )は本発明電池の電極端4部の取
付方法を示す説明図である。
(E) Embodiment An embodiment of the present invention will be described below with reference to the drawings. Third
The figure is a cross-sectional view of a main part of the battery of the present invention, and FIGS. 4(A) and 5(B) and FIG. 5 (A>(B)) are explanatory diagrams showing a method of attaching the four electrode ends of the battery of the present invention.

第3図及び2r〜4図に於いて、(7°〉は中央に透孔
を71し且つ咳透孔周縁に凹部を有する封目板でJ〕す
、該封印板(7′)の凹部に安全弁付陽極端子部(6)
が絶縁バンキング(5゛)を介して載置、(れ、次いで
断面り字形の環状抑圧板(10〉が封目板(7゛)の凹
1lffiの周囲に抵抗溶接やレーザー溶接によって固
a心れる。この後前記押圧板(10)ijプレス金型(
P)(D>によ−)て第4図(B)に示される様に内方
にす)シめられ、絶縁バッキング(5°)を強く押圧し
工陽檻端子部(6”)を挾持する。こうして作成じれた
陽極端子部(6”)を固定した封口板り7′)は陰極端
子1に用の外装ケース<4”)と、その端部(a)同7
εを線溶接し又完成電池となる。
In Fig. 3 and Figs. 2r to 4, (7°) is a sealing plate having a through hole 71 in the center and a concave portion around the periphery of the cough hole, and the concave part of the sealing plate (7') Anode terminal with safety valve (6)
is placed through an insulating bank (5゛), and then an annular suppression plate (10〉) with a cross-sectional shape is fixed around the recess 1lffi of the sealing plate (7゛) by resistance welding or laser welding. After this, the press plate (10) ij press mold (
P) (D>) is pushed inward as shown in Figure 4 (B)), and strongly press the insulating backing (5°) to secure the contact terminal (6"). The sealing plate 7') which fixed the anode terminal part (6") created in this way is attached to the outer case <4") for the cathode terminal 1, and its end (a)
Line weld ε to make a completed battery.

−うして作成された本発明電池と第1rAに示1(を宋
電池とを比較すると、本発明電池は封1−1板と外装ケ
ースとを溶接する簡に封目板に電極!11F部を1(′
(リイマ1りるブーめ、プレスによるかしめに於いて充
分に加圧することができ、また従来電池の様にバッキン
グを外装ケースのシーム部に載置し、てかしめるものに
比し、電極端子部の下面に当接するバフキング及び封1
]板を比較的多(とれるため電極端子部の封[」板の取
り付けは確実であり密封効果が高く、封口板(7′)と
外装ケース(4)と?縁溶接によって接続しているため
、封目板と外題ケースの間から゛の電解液の漏イ夜もな
い。また、従来電池の様にソーム加−■を必要としない
ため、J11部筒形状の電池であっても容易に封口する
こ1−が℃゛きる。
- Comparing the battery of the present invention thus prepared with the Song battery shown in 1st rA, the battery of the present invention has an electrode on the sealing plate! 1('
(It is possible to apply sufficient pressure when crimping with a reimmer and a press, and the electrode terminal Buffing and sealing 1 in contact with the bottom surface of the part
] Since the plate can be removed relatively many times, the sealing of the electrode terminal part is reliable and the sealing effect is high, and the sealing plate (7') and the outer case (4) are connected by edge welding. There is no leakage of electrolyte from between the sealing plate and the outer case.In addition, unlike conventional batteries, there is no need for som addition, so even J11 cylindrical batteries can be easily installed. It is difficult to seal the door at 1-°C.

次に本発明電池・ヒ第2図に示す電池とを比較4ると、
第2図に示−r電池は電極端子ト部を直接がしめで封目
板に取り付けているので電極り、4 F’ ::lI 
lこ安全弁機能をイづ加重ることか困難であ()のに対
し、本発明電池は電極端子部に容易に安全弁機能をイj
力電できるため安全である。
Next, when comparing the battery of the present invention with the battery shown in Figure 2, we find that
The -r battery shown in Figure 2 has the electrode terminal part directly attached to the sealing plate, so the electrode terminal is 4F'::lI.
In contrast, it is difficult to add the safety valve function to the electrode terminal part of the battery of the present invention.
It is safe because it can be powered by electricity.

尚1本発明は前述の実施例により限定されるものではな
く、第3図に示す抑圧板(10)は電池の内部側になる
様相みVてても良く、第5図に)jζず封口板/\の電
極端子の取付方法の様にプレス嘗により内方にかしめら
れる部材が封口板(7”)であってもその効果は同様で
ある。
Note that the present invention is not limited to the above-mentioned embodiments, and the suppression plate (10) shown in FIG. 3 may be placed on the inside of the battery; The effect is the same even if the member caulked inwardly by the press is a sealing plate (7'') as in the electrode terminal attachment method of plate /\.

土だ、前記押圧板に平面状のものあるいは封口板(7゛
)に対応する凹所を有するものを用い、この押圧板をバ
ンキング(5゛)の上方より押圧しでその周縁を封目板
に密着させ、この状態を維持し、て前記密着部分を溶接
することにより電極端子を封目板に固定しても良い。
For the pressing plate, use a flat one or one with a recess that corresponds to the sealing plate (7゛), and press this pressing plate from above the banking (5゛) to seal its periphery to the sealing plate. The electrode terminal may be fixed to the sealing plate by keeping the electrode terminal in close contact with the seal plate, maintaining this state, and then welding the contact portion.

(へ)発明の効果 本発明の密閉形電池は、金属性の外装ケースと月11板
とを線溶接にて封口するものに於い−(゛、n:1;己
封口板に溶接された環状抑圧板の孔縁と封目板に設けら
れた透孔の孔縁との間に絶を象バソギノグを介して電極
端子部を挾持するものであるから、′Iif庫端子部に
安全弁を設けることができるl共に附属液性が向上し、
また、長円筒、楕円筒、四角筒等の非真円筒状の電池に
も容易に適用し得る密閉形電池を提供することができる
(F) Effects of the Invention The sealed battery of the present invention is one in which the metal outer case and the moon plate are sealed by line welding. Since the electrode terminal part is held between the hole edge of the annular suppressing plate and the hole edge of the through hole provided in the sealing plate through the insulation valve, a safety valve is provided in the case terminal part. It is possible to improve both the attached liquid properties and
Furthermore, it is possible to provide a sealed battery that can be easily applied to batteries with non-true cylinders such as long cylinders, elliptical cylinders, and square cylinders.

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

第1図は従来電池の断面図、第2図及び第3図は従来電
池及び本発明電池の要部断面図、第4図(A)(B)及
び第5図(A)(B)は本発明電池に7カ(づる、電極
端子部の取fj力法を示す説明図である。 (4;(4’)(4°)・外装ケース、(7)(7’)
 封口板、(6)(6’)(6”) ・電極端子部、(
10) 環状抑圧板、(5)(5’)<8> ・絶縁バ
ンキング。 埼 函 大中
Fig. 1 is a sectional view of a conventional battery, Figs. 2 and 3 are sectional views of main parts of a conventional battery and a battery of the present invention, and Figs. 4 (A) (B) and 5 (A) and (B) are It is an explanatory diagram showing the method for attaching the seven electrode terminals to the battery of the present invention. (4; (4') (4°) Exterior case, (7) (7')
Sealing plate, (6) (6') (6") ・Electrode terminal part, (
10) Annular suppression plate, (5) (5') <8> - Insulating banking. Saitama Junior High School

Claims (1)

【特許請求の範囲】[Claims] (1)−極性電極の端子部を兼ねる金属性の外装ケース
と該ケースの開口部を閉室する封口−板とを線溶接にて
封口してなる密閉形電池に於いて、O1j記↓、j[−
1板に溶接された環状押圧板の孔縁と前記封目板に’a
 I)られた透孔の孔縁との間に絶縁バンキングを介し
又他極性電極端子部を挾持してなう密閉形電池。
(1) - In a sealed battery formed by wire welding a metal exterior case that also serves as the terminal part of the polar electrode and a sealing plate that closes the opening of the case, O1j ↓, j [-
'a' between the hole edge of the annular pressing plate welded to one plate and the sealing plate.
I) A sealed battery in which an electrode terminal of the other polarity is sandwiched between the edge of a through hole and an insulating bank.
JP58164745A 1983-09-06 1983-09-06 Sealed battery Granted JPS6056363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58164745A JPS6056363A (en) 1983-09-06 1983-09-06 Sealed battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58164745A JPS6056363A (en) 1983-09-06 1983-09-06 Sealed battery

Publications (2)

Publication Number Publication Date
JPS6056363A true JPS6056363A (en) 1985-04-01
JPH0118542B2 JPH0118542B2 (en) 1989-04-06

Family

ID=15799101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58164745A Granted JPS6056363A (en) 1983-09-06 1983-09-06 Sealed battery

Country Status (1)

Country Link
JP (1) JPS6056363A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2133937A1 (en) * 2007-03-02 2009-12-16 Shenzhen Bak Battery Co., Ltd Battery mouth-sealing assembly and battery including the same
EP2133936A1 (en) * 2007-03-02 2009-12-16 Shenzhen Bak Battery Co., Ltd An improved battery mouth-sealing assembly and a battery including the same
CN105789492A (en) * 2014-12-23 2016-07-20 比亚迪股份有限公司 Battery shell, preparation method of battery shell, battery, battery pack and electric car

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2133937A1 (en) * 2007-03-02 2009-12-16 Shenzhen Bak Battery Co., Ltd Battery mouth-sealing assembly and battery including the same
EP2133936A1 (en) * 2007-03-02 2009-12-16 Shenzhen Bak Battery Co., Ltd An improved battery mouth-sealing assembly and a battery including the same
EP2133936A4 (en) * 2007-03-02 2012-10-10 Shenzhen Bak Battery Co Ltd An improved battery mouth-sealing assembly and a battery including the same
EP2133937A4 (en) * 2007-03-02 2012-10-10 Shenzhen Bak Battery Co Ltd Battery mouth-sealing assembly and battery including the same
CN105789492A (en) * 2014-12-23 2016-07-20 比亚迪股份有限公司 Battery shell, preparation method of battery shell, battery, battery pack and electric car

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