JPS5951458A - Enclosed battery - Google Patents
Enclosed batteryInfo
- Publication number
- JPS5951458A JPS5951458A JP57162038A JP16203882A JPS5951458A JP S5951458 A JPS5951458 A JP S5951458A JP 57162038 A JP57162038 A JP 57162038A JP 16203882 A JP16203882 A JP 16203882A JP S5951458 A JPS5951458 A JP S5951458A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- sealing lid
- case
- battery case
- lid
- 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 abstract description 25
- 239000011521 glass Substances 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910001039 duplex stainless steel Inorganic materials 0.000 claims description 5
- 238000003466 welding Methods 0.000 abstract description 21
- 239000000463 material Substances 0.000 abstract description 6
- SOZVEOGRIFZGRO-UHFFFAOYSA-N [Li].ClS(Cl)=O Chemical compound [Li].ClS(Cl)=O SOZVEOGRIFZGRO-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000008151 electrolyte solution Substances 0.000 abstract 1
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- 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)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はハーメチックシールを採用する密閉形電池の改
良に係り、電池ケースと封口蓋との溶接不良の発生を防
止することを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a sealed battery that employs a hermetic seal, and an object of the present invention is to prevent the occurrence of poor welding between the battery case and the sealing lid.
たとえば塩化チオニルーリチクム電池などのように高度
の密閉性が要求される電池では密閉手段としてハーメチ
ックシールが採用されている。このハーメチックシニル
の場合、電池ケースと封口蓋との接合は溶接で行々われ
、封口蓋のボディ一部は電池ケースとの溶接性や塩化チ
オニルの強い腐食作用に対する耐性を考慮して、電池ケ
ースと同様Ｋ ＳＵＳ ８０４．５ＵＳｆｌ１０４Ｌな
どのオーステナイト系ステンレス鋼で形成されている。For example, a hermetic seal is used as a sealing means in batteries that require a high degree of sealing, such as thionyl lulithicium chloride batteries. In the case of this hermetic vinyl, the battery case and the sealing lid are joined by welding, and a part of the body of the sealing lid is attached to the battery case in consideration of weldability with the battery case and resistance to the strong corrosive action of thionyl chloride. Similarly, it is made of austenitic stainless steel such as K SUS 804.5USfl104L.
ところが、封口蓋のボディ一部の場合は、ガラスまたは
セラミックスで形成される絶縁部の強度を保つ必要があ
ることから、一定の板厚を必要とし、従来使用のＳＵＳ
８０４、ＳＵＳ ８０４ Ｌ々どでは、第８図に示す
ように、封口蓋（５）のボディ一部（８）め板厚が電池
ケース（４）の板厚より厚くなり（約２倍程度である）
、そのため溶接時に高い入熱が必要となって、電池ケー
ス内に充填されている活物質、セパレータなどの内容物
や、ガラスまたはセラミツクスで形成される絶縁部に悪
影響を及ぼしやすく、また不均一加熱と々るため溶接そ
のものも良好な強度が得られないという問題がある。However, in the case of a part of the body of the sealing lid, it is necessary to maintain the strength of the insulating part made of glass or ceramics, so a certain plate thickness is required, and the conventionally used SUS
804, SUS 804 L etc., as shown in Figure 8, the body part (8) of the sealing lid (5) is thicker than the battery case (4) (approximately twice as thick). be)
Therefore, high heat input is required during welding, which tends to have a negative effect on the contents such as the active material and separator filled in the battery case, as well as the insulating parts made of glass or ceramics, and may also cause uneven heating. There is a problem in that the welding itself does not provide good strength because the welding process takes a long time.
本発明はそのような事情に鑑みてなされたものであり、
封口蓋のボディ一部Ｋ ５ＵＳ８２９ Ｊ １、ＳＵＳ
８２９ Ｊ２などの２相ステンレス鋼を用いることに
よって、封口蓋のボディ一部の厚さを電池ケースの厚さ
とほぼ同じ厚さまでに薄肉化できるようにし、前記の諸
問題を解決したものである。The present invention was made in view of such circumstances,
Part of the body of the sealing lid K 5US829 J 1, SUS
By using duplex stainless steel such as 829 J2, the thickness of a portion of the body of the sealing lid can be reduced to approximately the same thickness as the battery case, thereby solving the aforementioned problems.
本発明においてボディ一部の形成材料として用いるＳＵ
Ｓ ８２９ ＪｌやＳＵＳ ８２９ Ｊ ２などの２相
ステンレス鋼は、従来使用の５ＵＳ８０４などの抗張力
が焼鈍状態で４５〜５６にシー２であるのに対し、７０
〜９０ｋｌ／ｖｘ２という高抗張力を有するので、たと
え薄肉化してもガラスまたはセラミックスで形成される
絶縁部を充分に保持することができる。SU used as a forming material for a part of the body in the present invention
Duplex stainless steels such as S829 Jl and SUS 829 J2 have a tensile strength of 70 to 56 C2 in the annealed state, whereas conventionally used 5US804 has a tensile strength of 45 to 56 C2 in the annealed state.
Since it has a high tensile strength of ~90kl/vx2, it can sufficiently hold an insulating part made of glass or ceramics even if the thickness is reduced.
ボディ一部の薄肉化は、絶縁部の材質や大きさなどＫよ
っても多少異々るが、電池ケースの厚さに対して１：０
．９〜１．８程度まで薄くすることが可能である。The thinning of a part of the body varies slightly depending on the material and size of the insulating part, but it is 1:0 relative to the thickness of the battery case.
．． It is possible to reduce the thickness to about 9 to 1.8.
そして上記のＳＵＳ ８２９ ＪｌやＳＵＳ ３２９
Ｊ２などの２相ステンレス鋼は電池ケースに一般に使用
されている５ＵＳ８０４や５ＵＳ８０４Ｌとの溶接性も
よく、また耐腐食性もすぐれている。And the above SUS 829 Jl and SUS 329
Duplex stainless steel such as J2 has good weldability with 5US804 and 5US804L, which are commonly used for battery cases, and also has excellent corrosion resistance.
つぎに本発明の実施例を図面とともに説明する。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の密閉形電池の一実施例を示す半裁断面
図であり、図面において、（１）はリチウムよりなる負
極で、（２）はガラス繊維不織布よりなるセパレータで
あり、（３）は炭素多孔質成形体よりなる正極である。FIG. 1 is a half-cut sectional view showing one embodiment of the sealed battery of the present invention. In the drawing, (1) is a negative electrode made of lithium, (2) is a separator made of glass fiber nonwoven fabric, and (3) is a negative electrode made of lithium. ) is a positive electrode made of a carbon porous molded body.
（４）はステンレス鋼製の電池ケースであり、この電池
ケース（４）はその内周面に上記リチウム負極（１）が
圧着されていて負極端子を兼ねている。（５）は封口蓋
で、この封口蓋（５）は中央部に正極側の端子部（６）
と、該端子部（６）の外周側に位置するガラスまたはセ
ラミックスより々る絶縁部（７）と、該絶縁部（７）の
″外周側に位置する環状で２相ステンレス鋼製のボディ
一部（８）を有してなり、この実施例ではボディ一部（
８）はその外周部および内周部がとも釦上方に隆起した
形状をしている。そしてボディ一部（８）の外周部は電
池ケース（４）の開口端部と溶接され、内周部には上記
絶縁部（７）が溶着されている。端子部（６）は金属製
パイプ（９）と金属細棒αＱとで形成され、金属細棒α
Ｑの下部は正極（３）内に達していて正極集電体として
の役目をはたし、上部はパイプ（９）の上端部と溶接さ
れて正極端子θｐを構成している。そして、この実施例
では、パイプ（９）は耐熱ステンレス鋼製のものが用い
られ、金属細棒０Ｑけステンレス鋼製のものが用いられ
ている。なお、端子部（６）の形成は、端子部構成部材
としてのパイプ（９）をあらかじめ絶縁部（７）の内周
側に溶着しておき、封口蓋（６）を電池ケース（４）に
溶接し、電解液を該パイプ（９）から注入したのち、金
属細棒αＯをパイプ（９）に挿入し、パイプ（９）と金
属細棒αＱを溶接することによって行なわれている。（
２）および（至）はセパレーター（２）と同質材料で形
成された上蓋および下蓋であり、電解液としては塩化チ
オニルに塩化アルミニクムリチクムを溶解させたものが
使用され、上記塩化チオニルは同時に正極活物質として
の作用をけたすものである。(4) is a battery case made of stainless steel, and this battery case (4) has the lithium negative electrode (1) crimped onto its inner peripheral surface and also serves as a negative electrode terminal. (5) is a sealing lid, and this sealing lid (5) has a terminal part (6) on the positive electrode side in the center.
, an insulating part (7) made of glass or ceramics located on the outer peripheral side of the terminal part (6), and an annular body made of duplex stainless steel located on the outer peripheral side of the insulating part (7). (8), and in this embodiment, the body part (8)
8) has a shape in which both the outer and inner circumferential portions are raised above the button. The outer peripheral part of the body part (8) is welded to the open end of the battery case (4), and the insulating part (7) is welded to the inner peripheral part. The terminal part (6) is formed of a metal pipe (9) and a thin metal rod αQ.
The lower part of Q reaches into the positive electrode (3) and serves as a positive electrode current collector, and the upper part is welded to the upper end of the pipe (9) to form a positive electrode terminal θp. In this embodiment, the pipe (9) is made of heat-resistant stainless steel, and is made of stainless steel with a thin metal rod of 0Q. The terminal part (6) is formed by first welding the pipe (9) as a component of the terminal part to the inner circumferential side of the insulating part (7), and then attaching the sealing lid (6) to the battery case (4). After welding and injecting electrolyte through the pipe (9), a thin metal rod αO is inserted into the pipe (9), and the pipe (9) and the thin metal rod αQ are welded. (
2) and (to) are upper and lower lids made of the same material as separator (2), and the electrolyte used is thionyl chloride dissolved in aluminum chloride. At the same time, it functions as a positive electrode active material.
このような本発明の電池においては、ボディ一部（８）
を構成する２相ステンレス鋼が強度が大きく、たとえボ
ディ一部（８）を薄肉化しても絶縁部（７）を保持しう
ろことから、たとえば第２図に詳示するよう釦、ボディ
一部（８）の厚さを電池ケース（４）の厚さとほぼ同じ
厚さにすることができる。従って、封口蓋（５）と電池
ケース（４）との溶接に際し、従来のよう忙高い入熱を
必要とせず、その結果、従来電池に見られたような絶縁
部の破損や溶接不良の発生などを防止することができる
。なお、第２図は封口蓋（５）と電池ケース（４）との
溶接開始前の状態を示し、この第２図と第８図では繁雑
化を避けるため後方の輪郭線は省略されている。In such a battery of the present invention, the body part (8)
The duplex stainless steel that makes up the button is strong and will maintain the insulation part (7) even if the body part (8) is made thinner. (8) can be made approximately the same thickness as the battery case (4). Therefore, when welding the sealing lid (5) and the battery case (4), there is no need for a high heat input as in the past, and as a result, damage to the insulation part and poor welding occur as seen in conventional batteries. etc. can be prevented. Note that Figure 2 shows the state before welding between the sealing lid (5) and the battery case (4) begins, and the rear outline is omitted in Figures 2 and 8 to avoid complication. .
つぎの第１表は本発明の電池ＡおよびＢと従来電池Ｃお
よびＤの封口彊のボディ一部の外周部と電池ケースの開
口端部との溶接時の不良発生を調べた結果を示すもので
ある。溶接不良には溶接が不完全なものと、溶接はでき
たが絶縁部の破損が生じたもののとの両者を含んでいる
。電池は直゛径１４．５ｇｇの塩化チオニルーリチウム
電池で絶縁部はガラスで形成されており、溶接はプラズ
マアークにより行々われ、溶接条件は本発明の電池Ａお
よびＢの場合と従来電池Ｃの場合は最適条件が選ばれ、
従来電池りの場合は本発明の電池と同条件が選ばれてい
る。上記電池Ａ−Ｄの電池ケースはいずれも５ＵＳ８０
４製で厚さは９ｔｘｗであり、封口蓋のボディ一部は本
発明の電池Ａの場合はＳＵＳ ８２９ Ｊｌ製で厚さは
８闘で、本発明の電池Ｂの場合は５ＵＳＢ２９ Ｊ２
！ｌ！ｉで厚さは８Ｈであり、従来電池ＣおよびＤの場
合はいずれも５ＵＳ８０４製で厚さは６ ａｍである。The following Table 1 shows the results of an investigation into the occurrence of defects during welding between the outer periphery of a part of the sealed body of batteries A and B of the present invention and conventional batteries C and D and the open end of the battery case. It is. Defective welding includes both incomplete welding and successful welding, but with damage to the insulation. The battery is a lithium thionyl chloride battery with a diameter of 14.5 gg, and the insulating part is made of glass.Welding is performed by plasma arc, and the welding conditions are the same for batteries A and B of the present invention and conventional battery C. If , the optimal conditions are selected,
In the case of a conventional battery, the same conditions as those for the battery of the present invention are selected. The battery cases for the above batteries A-D are all 5US80
In the case of Battery A of the present invention, the body part of the sealing lid is made of SUS 829 Jl and has a thickness of 8TxW, and in the case of Battery B of the present invention, it is 5USB29 J2.
! l! In the case of conventional batteries C and D, both are made of 5US804 and have a thickness of 6 am.
これら封口蓋のボディ一部の材質および厚さ、電池ケー
スの材質および厚さ々らびに溶接条件を第２表にまとめ
て示す。The material and thickness of a part of the body of these sealing lids, the material and thickness of the battery case, and welding conditions are summarized in Table 2.
第 １ 表
第 ２ 表
第１表に示す結果から明らか力ように、本発明によれば
溶接不良の発生を効果的に防止することができる。As is clear from the results shown in Table 1, Table 2, and Table 1, the present invention can effectively prevent the occurrence of welding defects.
第１図は本発明の密閉形電池の一実施例を示す半裁断面
図で、第２図は第１図に示す電池の封口蓋と電池ケース
との溶接前における要部拡大断面図であり、第８図は従
来電池の要部拡大断面図である。
（４）・・・電池ケース、 （５）・・・封口蓋、 （
６）・・・正極側の端子部、 （７）・・・絶縁部、
（８）・・・ボディ一部第２図
コ
第３図FIG. 1 is a half-cut sectional view showing an embodiment of the sealed battery of the present invention, and FIG. 2 is an enlarged sectional view of the main parts of the battery shown in FIG. 1 before welding the sealing lid and the battery case. FIG. 8 is an enlarged sectional view of the main parts of a conventional battery. (4)...Battery case, (5)...Sealing lid, (
6)...Positive side terminal part, (7)...Insulating part,
(8)... Part of the body Figure 2 Figure 3
Claims (1)
位置するガラスまたはセラミックスよシ々る絶縁部と、
該絶縁部の外周側に位置する環状で金属製のボディ一部
とを有する封口蓋のボディ一部の外周部を電池ケースの
開口端部と溶接する密閉形電池において、封口蓋のボデ
ィ一部を２相ステンレス鋼で形成したことを特徴とする
密閉形電池。 ２．２相ステンレス鋼が５ＵＳ８２９Ｊ１または５ＵＳ
８２９７２である特許請求の範囲第１項記載の密閉形電
池。 ８、封口蓋のボディ一部の厚さと電池ケースの開口端部
の厚さがほぼ同じである特許請求の範囲第１項または第
２項記載の密閉形電池。[Claims] 1. One electrode terminal member, an insulating part made of glass or ceramics located on the outer peripheral side of the nuclear electrode terminal member,
In a sealed battery in which the outer periphery of the body part of the sealing lid, which has a ring-shaped metal body part located on the outer periphery side of the insulating part, is welded to the open end of the battery case, the body part of the sealing lid. A sealed battery characterized by being made of two-phase stainless steel. 2. Duplex stainless steel is 5US829J1 or 5US
82972, the sealed battery according to claim 1. 8. The sealed battery according to claim 1 or 2, wherein the thickness of a portion of the body of the sealing lid and the thickness of the open end of the battery case are approximately the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57162038A JPS5951458A (en) | 1982-09-16 | 1982-09-16 | Enclosed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57162038A JPS5951458A (en) | 1982-09-16 | 1982-09-16 | Enclosed battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5951458A true JPS5951458A (en) | 1984-03-24 |
| JPH0467301B2 JPH0467301B2 (en) | 1992-10-27 |
Family
ID=15746896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57162038A Granted JPS5951458A (en) | 1982-09-16 | 1982-09-16 | Enclosed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5951458A (en) |
-
1982
- 1982-09-16 JP JP57162038A patent/JPS5951458A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0467301B2 (en) | 1992-10-27 |
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