JPS61133556A - Terminal welded battery - Google Patents
Terminal welded batteryInfo
- Publication number
- JPS61133556A JPS61133556A JP59256017A JP25601784A JPS61133556A JP S61133556 A JPS61133556 A JP S61133556A JP 59256017 A JP59256017 A JP 59256017A JP 25601784 A JP25601784 A JP 25601784A JP S61133556 A JPS61133556 A JP S61133556A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- terminal
- welding
- stainless steel
- terminals
- 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
Links
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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/562—Terminals characterised by the material
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
-
- 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、端子付電池に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a battery with a terminal.
従来の技術
近年電子機器の発展に伴い、メモリーバックアップ用電
源として端子付電池の需要が増大している。従来の端子
付電池の構成として、コイン型リチウム電池の正極端子
を兼ねたステンレス鋼の外表面にニッケル処理を施した
ケースと、負極端子を兼ねたステンレス鋼の外表面にニ
ッケル処理を施した封目板から成る電池において、前記
ケース、封目板にニッケル製リード端子を電気抵抗溶接
等を用いて溶接し、リード端子の他方を基板等に半２ベ
ーン
山付を行なう方法が用いられていた。端子付電池の、電
池としての条件は、高エネルギー密度と、高い電圧、耐
漏液性、保存特性、放電特性、温度特性、信頼性等の点
よりリチウム電池が用いられ、その形状は主に円筒型、
偏平型であり、放電容量の点からはコイン型が多く用い
られている。BACKGROUND OF THE INVENTION With the development of electronic devices in recent years, the demand for batteries with terminals as memory backup power sources has increased. Conventional batteries with terminals consist of a case made of stainless steel with nickel treatment on the outer surface, which also serves as the positive terminal of a coin-type lithium battery, and a seal with nickel treatment on the outer surface of stainless steel, which also serves as the negative terminal. In a battery consisting of a batten, a method has been used in which a nickel lead terminal is welded to the case and the sealing plate using electric resistance welding, and the other lead terminal is attached to a board, etc. with half two vanes. . Lithium batteries are used as batteries with terminals due to their high energy density, high voltage, leakage resistance, storage characteristics, discharge characteristics, temperature characteristics, and reliability, and their shape is mainly cylindrical. type,
It is a flat type, and a coin type is often used in terms of discharge capacity.
当初電子機器に組み込む時には放電容量及び電流等の関
係より交換することも考えられ、端子付ではなく、電池
単体を電子機器に入れ、電気的導通は正、負極端子と電
子機器との接触によって行っており、電気的抵抗を低下
する事と、接触不良を低下する為に正、負極端子である
ケースと、封目板の外表面に厚さ２０μのニッケル層を
施しだものである。When initially incorporating batteries into electronic equipment, it may be possible to replace them due to discharge capacity, current, etc., and instead of installing batteries with terminals, a single battery is placed in the electronic equipment, and electrical continuity is established through contact between the positive and negative terminals and the electronic equipment. A nickel layer with a thickness of 20 μm is applied to the outer surface of the case, which is the positive and negative terminal, and the sealing plate, in order to reduce electrical resistance and reduce contact failure.
リード端子としては半田付、加工性等の点よりニッケル
製の丸棒を用い、溶接部については板状に加工して用い
られ、溶接としては、通常電気抵抗溶接が用いられる。For the lead terminals, round rods made of nickel are used from the viewpoint of soldering and workability, and the welding parts are processed into plate shapes, and electric resistance welding is usually used for welding.
この構成で端子付電池を構成すると、リード端子のハズ
レ等の問題点が出てきた。この原因は電３ ページ
池の正、負極端子であるケース、封口板の外表面に２０
μのニッケル層があり、ニッケル製リード端子を用い、
電気抵抗溶接を用いて溶接を行なうとケース、封目板の
ニッケル層の熱伝導度がニッケル０．２２ （ｃａｌ／
ｃｒｄｅ℃・豊）、 ステンレス鋼ではｏ、ｏ３９（Ｃ
ａｔ／ＣＩ！・℃・渡） と大きい為と考えられ、溶
接時のパワーが犬きく必要である。これと同時に電池内
部への熱影響が大きく、リチウム電池ではリチウムの融
解、セパレータの融解等の問題がある為溶接パワーをあ
まり大きく出来ない。又電気抵抗溶接の接触面が溶接に
よる汚れ等によって溶接強度が変わる為、一定の回数後
清掃を行う必要があり、汚れが激しい時には溶接強度が
低下することもあり、品質上バラツキが大きい為、これ
が前記のハズレ等の原因となっている。When a battery with terminals is constructed with this configuration, problems such as lead terminals coming loose occur. The cause of this is that the outer surface of the case and sealing plate, which is the positive and negative terminals of the battery, is
There is a μ nickel layer and uses nickel lead terminals.
When welding is performed using electric resistance welding, the thermal conductivity of the nickel layer of the case and sealing plate is nickel 0.22 (cal/
crde℃・Toyo), stainless steel: o, o39 (C
at/CI! This is thought to be due to the large welding temperature (°C/wt), which requires a high level of power during welding. At the same time, there is a large thermal effect on the inside of the battery, and with lithium batteries, there are problems such as melting of lithium and melting of the separator, so welding power cannot be increased very much. In addition, the welding strength of the contact surface of electric resistance welding changes due to dirt caused by welding, etc., so it is necessary to clean it after a certain number of times, and when the contact surface is heavily soiled, the welding strength may decrease, resulting in large variations in quality. This is the cause of the above-mentioned failure.
発明が解決しようとする問題点
以上の点よりこれまでの電池における問題点はリード端
子の溶接強度、及び溶接強度の不安定。Problems to be Solved by the Invention From the above points, the problems with conventional batteries are the welding strength of the lead terminals and the instability of the welding strength.
溶接時の電池内部への熱影響の３点にしぼられる。This can be narrowed down to three points: the effect of heat on the inside of the battery during welding.
本発明はこれらの問題点を解決することを目的とするも
のである。The present invention aims to solve these problems.
問題点を解決するだめの手段
この問題点を解決するため、本発明は電池の正、負極端
子にステンレス鋼、リード端子にステンレス鋼を母材と
したものを用い、このリード端子を電池端子にレーザー
溶接したものである。Means to Solve the Problem In order to solve this problem, the present invention uses stainless steel for the positive and negative terminals of the battery, stainless steel for the lead terminal, and uses this lead terminal as the battery terminal. It is laser welded.
作 用
この構成によれば、正、負極端子にステンレス鋼を用い
ることによって溶接熱の移動が無い為と考えられ、溶接
パワーの減少・溶接強度の増加及びニッケル層を付加す
る工程が省略出来る。Function: According to this configuration, it is thought that there is no transfer of welding heat due to the use of stainless steel for the positive and negative terminals, and the process of reducing welding power, increasing welding strength, and adding a nickel layer can be omitted.
実施例
以下本発明の実施例を第１図から第４図を参照して説明
する。EXAMPLES Examples of the present invention will be described below with reference to FIGS. 1 to 4.
第１図にリード端子付コイン型リチウム電池を示す・
図中、１は負極端子を兼ねた封目板でステンレス鋼の厚
さＱ、２５ｍｍのものから形成されている。２は正極端
子を兼ねたケースでステンレス鋼の厚さＱ、２５ｍｍも
のからなる。３は負極のリチウム、４５ページ
はポリプロピレン製セパレータ、５は正極合剤でフッ化
黒 を活物質としている。６はポリプロピレン製のガス
ケットである。電解液には有機電解液を用い、総高３．
２謔、直径２０．０！１１１１１の電池としだ。Fig. 1 shows a coin-type lithium battery with lead terminals. In the figure, numeral 1 denotes a sealing plate which also serves as a negative terminal, and is made of stainless steel with a thickness of Q and 25 mm. 2 is a case which also serves as a positive terminal and is made of stainless steel with a thickness Q of 25 mm. 3 is a lithium negative electrode, page 45 is a polypropylene separator, and 5 is a positive electrode mixture that uses black fluoride as the active material. 6 is a gasket made of polypropylene. An organic electrolyte is used as the electrolyte, and the total height is 3.
2 songs, a battery with a diameter of 20.0!11111.
リード端子７，８としてはステンレス鋼を母材とし、こ
れに半田付可能な様にリード端子の半田付予定部に半田
メッキを施す為、リード端子にまずニッケルメッキを施
した後、半田メッキを行って厚さ０．２論とした。The base material of the lead terminals 7 and 8 is stainless steel, and in order to make it possible to solder the lead terminals, the parts to be soldered are first plated with nickel, and then solder plated. The thickness was determined to be 0.2.
第２図は電池端子に先のリード端子をレーザー溶接した
端子付電池の一例を示す。FIG. 2 shows an example of a battery with a terminal in which a lead terminal is laser welded to the battery terminal.
第３図と第４図は本発明品及び従来例の溶接モデル図を
示す。図中９はレーザ一方向、１０は従来の電池に用い
られていた厚さ２０μのニッケル層１１を有する負極を
兼ねた封目板であり、ステンレス鋼から形成されている
厚さ０．２５ｍｍのものである。図から明らかな様にニ
ッケルクラッドが無い方が深く溶接されており、溶接強
度も大きい。第１表に本発明品と従来例について示す。3 and 4 show welding model diagrams of the product of the present invention and the conventional example. In the figure, 9 is a one-direction laser beam, 10 is a sealing plate that also serves as a negative electrode and has a nickel layer 11 with a thickness of 20μ, which is used in conventional batteries. It is something. As is clear from the figure, the weld without nickel cladding is deeper and the weld strength is greater. Table 1 shows the products of the present invention and conventional examples.
６ ベーン
１ 電池の正、負極端子（ケースと封口板）のニッケル
有無、２ リード端子の材質、３ 溶接方法、４ 引っ
張り強度（ｎ−１０）、６ 生産数１．０００個中にお
ける強度検査によるハズレ数、８ １．５ｆｌｌ＋１よ
りの落下試験後における１０個中の異常（リード端子の
切断、ハズレ）数を示す。6 Vane 1 Presence or absence of nickel in battery positive and negative terminals (case and sealing plate), 2 Lead terminal material, 3 Welding method, 4 Tensile strength (n-10), 6 Based on strength test of 1,000 pieces produced. Number of failures, 8 Indicates the number of abnormalities (cutting of lead terminals, failure) out of 10 after a drop test from 1.5 flll+1.
第１表より明らかな様に本発明品の優位は明らかである
。その理由は前記した様に電池の正、負極端子（ケース
、封目板）はにステンレス鋼を用いて溶接パワーの低下
、溶接強度の増加、リード端子をステンレス鋼／ニッケ
ルメッキ十半田メッキにする事によって端子強度の増大
、レーザー溶接による非接触式法であるため多量溶接時
の変化が少ない等の為である。As is clear from Table 1, the superiority of the product of the present invention is obvious. The reasons for this are, as mentioned above, the positive and negative terminals (case, sealing plate) of the battery are made of stainless steel, which reduces welding power and increases welding strength, and the lead terminals are made of stainless steel/nickel plated or solder plated. This is because the strength of the terminal is increased, and because it is a non-contact method using laser welding, there is little change when welding a large quantity.
７ページ
発明の効果
以上の説明から明らか々様に電池の正、負極端子のステ
ンレス鋼を用いる方法は確実にニッケルを付加する工程
が省略出来、裏表の確認が不要である為コスト低下が図
れる。Page 7 Effects of the Invention From the above explanation, it is clear that the method of using stainless steel for the positive and negative terminals of the battery reliably eliminates the step of adding nickel and eliminates the need to check the front and back sides, thereby reducing costs.
特にケース、封口板が０．２５ｔＭｒｌより薄いもので
ニッケルクラッド（２０μ）がある条件では熱影響が大
きい為、実用上溶接は困難であった。In particular, when the case and sealing plate are thinner than 0.25 tMrl and there is a nickel cladding (20μ), the thermal effect is large, making welding difficult in practice.
一方リード端子のステンレス鋼／ニッケルメッキ十半田
メッキは強度が大きく、他のものには無い大きな効果で
ある。On the other hand, the stainless steel/nickel plating and solder plating of the lead terminals has great strength, which is a great effect that other types do not have.
またレーザー溶接は非接触式であり、多量節においても
安定した溶接強度を保つものである。Furthermore, laser welding is a non-contact method, and maintains stable welding strength even in large joints.
以上の点より総合すると本発明は今後ますます増大する
電子機器用メモリーバックアップ電源としての端子付電
池の増加に伴って、より安価で溶接強度が大きく、端子
強度の強い安定した特性のものを提供するものである。In summary, the present invention provides a battery with stable characteristics that is cheaper, has greater welding strength, and stronger terminal strength, in line with the increasing number of batteries with terminals used as memory backup power sources for electronic devices, which will continue to increase in the future. It is something to do.
第１図は本発明の実施例におけるコイン型すチ９ぺ一／
ウム電池の断面図、第２図は端子付電池を示す上面図、
第３図は本発明のレーザー溶接のモデル図、第４図は従
来のレーザー溶接のモデル図である。
１・・・・・・負極を兼ねた封口板、２・・・・・・正
極を兼ねたケース、３・・・・・・負極、４・・・・・
・セノくレータ、７・・・・・・負極リード端子、８・
・・・・・正極リード端子、９・・・・・レーザ一方向
、１０・・・・・・従来のニッケル層２０μを付けたス
テンレス鋼の負極を兼ねた封口板。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
２グース（正極＠Ｔ！ｒ）
第２図FIG. 1 is a cross-sectional view of a coin-type 9P/m battery according to an embodiment of the present invention, and FIG. 2 is a top view showing a battery with a terminal.
FIG. 3 is a model diagram of laser welding according to the present invention, and FIG. 4 is a model diagram of conventional laser welding. 1... Sealing plate that also serves as a negative electrode, 2... Case that also serves as a positive electrode, 3... Negative electrode, 4...
・Sensorator, 7...Negative lead terminal, 8・
. . . Positive lead terminal, 9 . . . One direction laser, 10 . . . Sealing plate that also serves as a negative electrode made of stainless steel with a conventional nickel layer of 20μ. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Goose (positive electrode @T!r) Figure 2
Claims (1)
池端子にステンレス鋼を母材としたリード端子をレーザ
ー溶接した端子付電池。A battery with a terminal, in which the positive and negative terminals of the battery are made of stainless steel, and a lead terminal made of stainless steel as a base material is laser welded to the battery terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59256017A JPS61133556A (en) | 1984-12-04 | 1984-12-04 | Terminal welded battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59256017A JPS61133556A (en) | 1984-12-04 | 1984-12-04 | Terminal welded battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61133556A true JPS61133556A (en) | 1986-06-20 |
Family
ID=17286749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59256017A Pending JPS61133556A (en) | 1984-12-04 | 1984-12-04 | Terminal welded battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61133556A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0557801U (en) * | 1992-01-10 | 1993-07-30 | 株式会社村田製作所 | PTC thermistor device |
| JP2004319310A (en) * | 2003-04-17 | 2004-11-11 | Sii Micro Parts Ltd | Electrochemical cell |
| JP2011216859A (en) * | 2010-03-15 | 2011-10-27 | Seiko Instruments Inc | Electrochemical cell with terminal, and method of manufacturing the same |
| JP2020095924A (en) * | 2018-12-14 | 2020-06-18 | セイコーインスツル株式会社 | Electrochemical cell |
-
1984
- 1984-12-04 JP JP59256017A patent/JPS61133556A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0557801U (en) * | 1992-01-10 | 1993-07-30 | 株式会社村田製作所 | PTC thermistor device |
| JP2004319310A (en) * | 2003-04-17 | 2004-11-11 | Sii Micro Parts Ltd | Electrochemical cell |
| JP4688406B2 (en) * | 2003-04-17 | 2011-05-25 | セイコーインスツル株式会社 | Electrochemical cell with terminal |
| JP2011216859A (en) * | 2010-03-15 | 2011-10-27 | Seiko Instruments Inc | Electrochemical cell with terminal, and method of manufacturing the same |
| JP2020095924A (en) * | 2018-12-14 | 2020-06-18 | セイコーインスツル株式会社 | Electrochemical cell |
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