JPS5842168A - Manufacturing method of sealed opening part in hermetic battery - Google Patents
Manufacturing method of sealed opening part in hermetic batteryInfo
- Publication number
- JPS5842168A JPS5842168A JP56139783A JP13978381A JPS5842168A JP S5842168 A JPS5842168 A JP S5842168A JP 56139783 A JP56139783 A JP 56139783A JP 13978381 A JP13978381 A JP 13978381A JP S5842168 A JPS5842168 A JP S5842168A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- sealing
- chromium
- metallic member
- stratal
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 60
- 239000003566 sealing material Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000011651 chromium Substances 0.000 claims abstract description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011162 core material Substances 0.000 claims description 16
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims description 3
- 229910001936 tantalum oxide Inorganic materials 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 7
- 238000007254 oxidation reaction Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 238000005530 etching Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 229910000576 Laminated steel Inorganic materials 0.000 abstract 1
- 239000008151 electrolyte solution Substances 0.000 abstract 1
- 150000002815 nickel Chemical class 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ZULTYUIALNTCSA-UHFFFAOYSA-N zinc hydride Chemical compound [ZnH2] ZULTYUIALNTCSA-UHFFFAOYSA-N 0.000 description 2
- 229910000051 zinc hydride Inorganic materials 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001301450 Crocidium multicaule Species 0.000 description 1
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002023 wood Substances 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
-
- 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
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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】
この発明は、密閉式電池の耐１液性能を高めることがで
きる封口部の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a sealing part that can improve the single-liquid resistance of a sealed battery.
第１図は密閉式のボタン型アルカリ電池の一例を示した
ものである。この種の密閉式電池は。FIG. 1 shows an example of a sealed button-type alkaline battery. This kind of sealed battery.
一般に、小型化のために極めて簡略化された構造となっ
ている。すなわち、陽極端子を兼ねる皿形容器状の金属
部材１１１とを、電気絶縁性でかつ弾力性に富む樹脂製
環状對口材８を介して。In general, the structure is extremely simplified for miniaturization. That is, a metal member 111 in the shape of a dish-shaped container, which also serves as an anode terminal, is connected to the resin annular opening member 8 which is electrically insulating and highly elastic.
それぞれの開口端縁部を互に嵌着せしめて、ボタ、ｙａ
ｔ＋の密閉構造の電池ケースｌを構成する。Fit the edges of each opening into each other and press the button, ya.
A battery case l with a T+ sealed structure is constructed.
そして電池ケースｌ内に、陽極活物質２亀、アルカリ電
解液を含むセパレータ２ｂおよび陰極活物質２ａを層状
に配列してなる発電要素２が密封入されている。A power generating element 2, which is formed by arranging an anode active material 2, a separator 2b containing an alkaline electrolyte, and a cathode active material 2a in a layered manner, is sealed in the battery case 1.
このような密閉式電池において、最も関心事となるのは
、その内部に封じ込めである発電要素ＩＫ含まれている
電解液を如何に安定に閉じ込め、外部へ漏出させないよ
う圧するかである。What is most important in such a sealed battery is how to stably confine the electrolyte contained in the power generating element IK inside the battery and apply pressure to prevent it from leaking outside.
特に、第１１５！ＯＫ示しえ如きボタン型の小型密閉式
アルカリ電池においては、小型化と−う口的を達成する
ために、アルカリ電解液の漏液を防止するためのシール
構造は、どうしても簡暎なものにせざるを得な−、しか
し、そこで使用されているアルカリ電解液は１周知の如
く、極めて滲出力が強く、また化学的および電気化学的
な侵蝕力が強く、特に陰極側金属部材に沿ってクリープ
を生じさせやすい、仁の丸め、従来においては、封口材
８とこの封口材８に接する陰極側金属部材Ｉｔ）との界
面に例えばエポキシ樹脂とか瀝青物質を層ａａ状に配し
、これによジアルカリ電解液のクリープを阻止せんとし
ていた。Especially the 115th! In small sealed alkaline batteries of the button type, which can be shown to be OK, in order to achieve miniaturization, the seal structure to prevent alkaline electrolyte leakage must be made simple. However, as is well known, the alkaline electrolyte used therein has an extremely strong leaching power and strong chemical and electrochemical corrosive power, and is particularly susceptible to creep along the cathode metal member. Conventionally, for example, an epoxy resin or bituminous substance is arranged in a layer aa form at the interface between the sealing material 8 and the cathode side metal member It) in contact with the sealing material 8. They were trying to prevent the electrolyte from creeping.
しかしながら、エポキシ樹脂とか瀝青物質は、経時的に
必ずしも安定な物質ではなく、少なくとも上記界面に層
状に配した状態では、アルカリ電解液によるクリープの
発生を長期に旺って確実に阻止することはできな−０ま
た。封口材８がガラスある−は七うずツタス等の場合に
は、そのエポキシ樹脂とか瀝青物質を封口材と金属部材
との界面に設けることは封着温度等の兼ね合一から当然
で自な−０すなわち、ハーメチックシールタイプの密閉
式アルカリ電池に適用することは不可能でらる。なお、
ハーメチックシールタイプのアルカリ電池に６っても、
アルカリ電解液は、封口材と金属部材との界面に沿って
、やは〉クリープを生じ１せ、これＫよシ漏液を生じさ
せる。However, epoxy resins and bituminous materials are not necessarily stable over time, and at least when they are arranged in a layer at the interface, it is not possible to reliably prevent creep caused by alkaline electrolyte over a long period of time. Na-0 again. When the sealing material 8 is glass, such as glass, it is natural to provide the epoxy resin or bituminous substance at the interface between the sealing material and the metal member from the viewpoint of sealing temperature, etc. In other words, it is impossible to apply this method to a hermetic seal type sealed alkaline battery. In addition,
Even if it is a hermetic seal type alkaline battery,
The alkaline electrolyte causes creep along the interface between the sealing material and the metal member, and this causes liquid leakage.
鵞た。上述した如き密閉式アルカリ電池においでは、電
池ケース１内における電気化学的反応によって発生期の
水素が生じる仁とが多いが。Goose. In the sealed alkaline batteries as described above, nascent hydrogen is often produced by an electrochemical reaction within the battery case 1.
この発生期の水素が封口材８と金属部材１１）との界面
部分を侵蝕し、これがアルカリ電解液の漏液の原因とな
る場合も少なくな−、ｔた。電池内で発生した水素は電
池内圧を高めて、上記封口材８とこれに接する金属部材
との密着性を破壊し、これによって漏液を生じさせるこ
ともある。さらＫまた。アルカリ電池の多くは、陰極物
質２４Ｂとして汞化亜鉛を用いて−るが、この汞化亜鉛
によって封口材８と金属部材との界面が汞化され、この
水化にともなって上記クリープが進行するようにもなる
。Hydrogen during this nascent stage corrodes the interface between the sealing material 8 and the metal member 11), and this often causes leakage of the alkaline electrolyte. Hydrogen generated within the battery increases the internal pressure of the battery and destroys the adhesion between the sealing material 8 and the metal member in contact with it, which may cause leakage. Sara K again. Most alkaline batteries use zinc hydride as the cathode material 24B, but the zinc hydride turns the interface between the sealing material 8 and the metal member into a hydride, and the creep progresses as the interface between the sealing material 8 and the metal member becomes hydrated. It also becomes like that.
以上のようなことを鑑みると１例えば第１図に示した如
き比較的小型の密閉式電池においては、その極めて限ら
れ九容積内で、Ｖ効発電容積を損なうことなく電解液の
漏液を確実に防止し得るようにすることは１着しく至難
なことである。In view of the above, 1. For example, in a relatively small sealed battery as shown in Figure 1, it is possible to prevent leakage of electrolyte within its extremely limited volume without impairing the V-effect power generation capacity. It is extremely difficult to ensure that this can be prevented.
この発明の基本的な目的は１以上に述べたような様々な
要因によって生じる電解液の漏液を。The basic purpose of this invention is to eliminate electrolyte leakage caused by various factors such as those mentioned above.
第１図に示した如き比較的小型の密閉式アルカリ電池に
おいても、その有効発成面積を少しも損なうことなく、
かつ簡獣なシール構造でもって、Ｗ実に防止できるよう
にすることにｉる。Even in a relatively small sealed alkaline battery as shown in Figure 1, it is possible to
Moreover, with a simple seal structure, it is possible to effectively prevent this.
この基本的な目的に立脚した本発明者らの研究により、
封口材とこれに接する金属部材の少なくとも陰極側界面
に沿ってクロムもしくはタンタルの醪化物層を設けるこ
とが極めてＭ効でるることが先に明らかにされ、これに
ついで既に特許出願がなされでいる。り筐り、封口材に
接する金属部材の界面にクロムもしくはタンクルの酸化
物層を設けることによシ、先ず機械的には、その酸化物
層と金属部材との間に強固かつ安定な結合状趨を得、ｔ
た化学的および電気化学的には、アルカリ電解液および
電池内の種物質等に対しても極めて安定で、さらに水素
過電圧が十分く高く１発生期の水素に対して十分に安定
で、しかも非ＩＩＩＫ永化され難く、これにより前述し
た如き種々の要因によるアルカリ電解液の漏液をも確実
に阻止できるようになる。Based on the research conducted by the present inventors based on this basic purpose,
It has previously been revealed that providing a chromium or tantalum moradide layer along at least the cathode side interface of the sealing material and the metal member in contact with the sealing material has an extremely effective M effect, and a patent application has already been filed for this. . By providing a chromium or tanker oxide layer on the interface of the metal member that comes into contact with the housing or sealing material, first, mechanically, a strong and stable bond can be created between the oxide layer and the metal member. Obtain a trend, t
Chemically and electrochemically, it is extremely stable against alkaline electrolytes and seed materials in batteries, and has a sufficiently high hydrogen overvoltage and is sufficiently stable against hydrogen in the first stage of generation. This makes it possible to reliably prevent the alkaline electrolyte from leaking due to the various factors mentioned above.
ζＯ発明の具体的な目的は、封口材に接する金属部材の
界面にりａムもしくはタンタルの酸化物層を設けるとｉ
う上述の封口部構造を真木化するに際し、より合理的で
生意適性が良く。The specific purpose of the ζO invention is that if a layer of aluminum or a tantalum oxide layer is provided on the interface of the metal member in contact with the sealing material,
When converting the above-mentioned sealing part structure into a solid wood, it is more rational and suitable for production.
低プストでこれを実現できるようにし九密閉式電池の對
口部の製造方法を提供することにある。It is an object of the present invention to provide a method for manufacturing the opening part of a sealed battery by realizing this at a low cost.
上記の目的を達成するために、乙の発明は。In order to achieve the above purpose, Party B's invention.
少なくとも陰極側の金属部材を、クロムもしくはタンタ
ルまたはこれらを含む金属を芯材として、この芯材金属
に他の金属を積層してなる複層構造とし、当ｉ金属部材
の封口材と接する部分だけ上記外層金属を除去して上記
芯材金属を露出させた後、その芯材金属の露出表面を酸
化処理することによって、当該金属部材の封口材と接す
る部分にだけりａムもしくはタンタルの醸化被膜を選択
形成することを特徴とする。At least the metal member on the cathode side has a multilayer structure consisting of a core made of chromium, tantalum, or a metal containing these, and other metals are laminated to the core metal, and only the part of the metal member in contact with the sealing material is After removing the outer layer metal to expose the core metal, the exposed surface of the core metal is oxidized, so that only the portion of the metal member in contact with the sealing material contains am or tantalum. It is characterized by selectively forming a film.
以下、この発明の実施例を添付、図面を参照しながら説
明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第２図はこの発明による密閉式電池の封口部の製造過程
を示す図でるる、同図では６ｇ１図に示した如き構造の
ボタン型の密閉式電池に本発明を適用した場合の例でＴ
ｏ夕、さらに詳ｗＩＫは、電池ケースｌを構成する−１
の皿形容器状で陰極端子を兼ねる金属部材１ｔ）Ｋ本発
明を適用した場合の例である。Figure 2 is a diagram showing the manufacturing process of the sealing part of a sealed battery according to the present invention. In the figure, an example is shown in which the present invention is applied to a button-type sealed battery having the structure shown in Figure 6g1.
o evening, more details wIK configure the battery case l-1
This is an example of a case where the present invention is applied to a metal member 1t) that has a dish-shaped container shape and also serves as a cathode terminal.
第２図（〜に示すように、陰極喝子金兼ねる金属部材Ｉ
ｔ）は、洩い皿形の容器状をなし、かつその周縁部が外
側に折シ返えされで１局部が３重とな〕、その祈）返え
された部分の外側面が第１図に示し九ように封口材８と
接する封口面４となる。この発ｇＡＫよる金属部材１ｍ
は、り四ムを含んだステンレス鋼からなる芯材金属６と
、芯材金属６の−５の面に積層された鋼からなる外層金
属６と、芯材金属６の他方の面に積層され九二ツクルか
らなる外層金１１７との８１Ｉ構造のクラツド板で構成
されて−る。なお、金属部材ｔｂは皿形容器状に成形さ
れる際に、銅の外層金ＩＩ６がケースの内側となシ、ニ
ッケルの外１金属Ｔがケースの外側となるように成形さ
れる。従って１周縁部が折り返えされでなる封口面４の
鋼からなる外層金桐・を１例えば電解除去めるｖｈはエ
ツチング等で選択的に刺繍すると、その封口面４０部分
に上記芯材金属６のｔＩ＆面が露出する。この芯材金属
６に含まれているクロムを酸化し、第２図（６）に示す
ように、封［］［４にクロムの酸化物層を形成する。こ
の酸化処理は１例えばウェット水素雰囲気中で行なう、
！たその＠に、第８図に示すように、多数の皿形容器状
の金属部材１に、１ｍ）−を予め互の凹ＩＩＫ凸部を嵌
合させで積層し、ウェット水素による酸化処理に供する
。すると、嵌合状態で積層され九金属部材ｌｂの内表Ｉ
ＩＩｊＰよび外表面の大部分はウェット水素雰囲気にさ
らされる仁とがなく１表面の電気的導通度が問題となる
部分が酸化されるのを防止できる。すなわｆｊ。Fig. 2 (As shown in
t) is shaped like a saucer-shaped container, and its periphery is folded back to the outside so that one part has three layers], and the outer surface of the folded part is the first part. As shown in the figure, the sealing surface 4 comes into contact with the sealing material 8. 1 m of metal parts by this emitted gAK
The core metal 6 is made of stainless steel containing a rim, the outer metal 6 is made of steel laminated on the -5 side of the core metal 6, and the outer layer metal 6 is laminated on the other side of the core metal 6. It is composed of a clad plate with an 81I structure and an outer gold layer 117 made of 92 metals. When the metal member tb is formed into a dish-shaped container shape, the metal member tb is formed so that the copper outer layer gold II6 is on the inside of the case, and the nickel outer layer metal T is on the outside of the case. Therefore, when the outer layer of metal paulownia made of steel on the sealing surface 4 whose peripheral edge is folded back is selectively embroidered by etching, for example, the core material metal is applied to the sealing surface 40. The tI& plane of 6 is exposed. Chromium contained in the core metal 6 is oxidized to form a chromium oxide layer on the seal [4] as shown in FIG. 2 (6). This oxidation treatment is carried out in a wet hydrogen atmosphere, for example.
! As shown in Fig. 8, 1 m) of metal members 1 in the shape of a large number of dish-shaped containers were stacked in advance by fitting their concave IIK protrusions into each other, and then subjected to oxidation treatment using wet hydrogen. provide Then, the inner surface I of the metal member lb is stacked in the fitted state.
IIjP and most of the outer surface are not exposed to a wet hydrogen atmosphere, which prevents oxidation of portions of the surface where electrical conductivity is a problem. In other words, fj.
これらの部分を酸化基せなｉようにする丸めの特別な！
スキングが不必要となる。Special rounding that makes these parts oxidized!
Skinking becomes unnecessary.
ξの発明では上述のようにして、ｌ＊極端子を兼ねる金
１４ｆｆｌＳ材１ｂの、封口材８と接する封口 ゛面４
にりａムの線化Ｗ署８ｔ−形成する。このようにして構
成され丸金属部材１ｔｌｉ用いて、第１図と基本的に同
じ構造のボタン型の密閉式電池を構成すると、第４図に
示すように、最もアルカリ電解液の漏液が問題となる封
口材８と金属部材１ｂとの接触界面にクロムの酸化１−
が介在し、これにより前述の如く耐漏液性能が大。In the invention of ξ, as described above, the sealing surface 4 in contact with the sealing material 8 of the gold 14fflS material 1b which also serves as the l* pole terminal.
Form a line W mark 8t of the film. When a button-type sealed battery having basically the same structure as shown in Fig. 1 is constructed using 1tli of round metal members constructed in this way, as shown in Fig. 4, leakage of alkaline electrolyte becomes a major problem. Oxidation of chromium 1- at the contact interface between the sealing material 8 and the metal member 1b
intervenes, and as mentioned above, this provides great leakage resistance.
幅に向上することとなる。This will result in a significant improvement in width.
なお、上記の実施例にＪＰ％Ａでは、芯材金属６として
クロムを含むステンレス鋼を用いたが本発明はこれに限
定されず、クロムもしくはタンタルまたはクロムかタン
タルの少なくとも１種を含んだ合金の薄板を芯春金ｗ４
５とし、上記封口面４にクロムもしくはタンタルの酸化
物層を形成することにより、耐漏液性能の向上という本
発明の基本的目的は達成される。ま九ボタン型の密閉式
電池の実施例にりｉで説明したが、他の構造の密閉式電
池１例えば集電体をケースに貫通して設ける偏平型の密
閉式電池にも本発明を適用できるもので弗）、その場合
、陰極端子となる集電体を複層構造とすることになる。In addition, in the above example, in JP%A, stainless steel containing chromium was used as the core metal 6, but the present invention is not limited thereto. The thin plate of core spring gold w4
5, and by forming a chromium or tantalum oxide layer on the sealing surface 4, the basic objective of the present invention, which is to improve leakage resistance, is achieved. Although the embodiment of the button-type sealed battery has been described in Section i, the present invention can also be applied to other sealed batteries with other structures, such as flat-type sealed batteries in which the current collector is provided by penetrating the case. In that case, the current collector that serves as the cathode terminal will have a multilayer structure.
さらに、４１に漏液の原因となシ易−陰極側熾子につい
ての実施例を説明し九が１本発明はこれに限定されず、
陽極側の金属部材ｌ＆側の封口甘口と接する部分にも、
上述の場合と同様に＠化物層８を形成して、耐漏液性能
を向上させるξとができる。Furthermore, in 41, an example of the easy-to-cathode side glass that causes liquid leakage is explained, and 9.1 The present invention is not limited thereto,
Also on the part of the metal member on the anode side that is in contact with the sealing sweet end on the l& side.
Similarly to the above case, by forming the oxide layer 8, it is possible to improve the leakage resistance.
以上のように、この発明による密閉式電池の封口部の製
造方法によれば、特に小型化のために構造上の簡略化を
止むなくされて−る密閉式電池を極めで漏液の少な−も
のにすることがで自る。As described above, according to the method of manufacturing the sealing part of a sealed battery according to the present invention, a sealed battery whose structure has been inevitably simplified in order to achieve miniaturization in particular can be manufactured with extremely low leakage. I am self-sufficient by making it into something.
第１図は従来の密閉式アル！り電池の例を示す断面図、
第２図は不発明の製造過程を示す図。
第８図は酸化処理過程を示す図、第４図は不発明を適用
した密閉式アルカリ電池の例を示、す断面図で６る。
ｌ・−・・・・−金属製電池ケース
ｌｂ・・・・・・陰極鴫子側の金属部材９１１６１１
ｍ ｓｅｅ発電要素
８−…１１輪封口材
４・−・−一封口面
６・・・・−一芯材金礪
６、マ・・・外層金属
８・・・・・・・−クロムまたはタンタルの酸化物署特
許 出 願 人 富士電気化学株式会社特許出願人
富士通株式会社
−代理人 弁理士 −色 健 輔
第１図
第２図
第３図Figure 1 shows the conventional closed type Al! A cross-sectional view showing an example of a battery,
FIG. 2 is a diagram showing the manufacturing process of the invention. FIG. 8 is a diagram showing the oxidation treatment process, and FIG. 4 is a sectional view showing an example of a sealed alkaline battery to which the invention is applied. l・-・・・Metal battery case lb・・・・・・Metal member on the cathode side 911611
m see power generation element 8-...11 ring sealing material 4...--one sealing surface 6...--one core material gold copper 6, ma...outer layer metal 8...-chromium or tantalum Patent applicant: Fuji Electrochemical Co., Ltd. Patent applicant: Fujitsu Limited - Agent Patent attorney - Kensuke Iro Figure 1 Figure 2 Figure 3
Claims (1)
くはタンタルまたはこれらを含む金属を芯材として、こ
の芯材金属に他の金属を積層してなる夜警構造とし、当
該金属部材の封口材と接する部分だけ上記外層金属を除
去して上記芯材金属を露出させ死後、その芯材金属の露
出表面を酸化処理することによって、゛当該金属部材の
封口材と接する部分にだけクロムもしくはタンタルの酸
化被膜を選択形成することを特徴とする密閉式電池の封
口部の製造方法。(1) At least the metal member on the cathode side has a night watch structure in which chromium, tantalum, or a metal containing these is used as a core material, and other metals are laminated on the core metal, and the part of the metal member that comes into contact with the sealing material By removing the outer layer metal to expose the core metal, and after death, oxidizing the exposed surface of the core metal, ``a chromium or tantalum oxide film is formed only on the part of the metal member in contact with the sealing material.'' A method for manufacturing a sealing part of a sealed battery, characterized by selectively forming the sealing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56139783A JPS5842168A (en) | 1981-09-07 | 1981-09-07 | Manufacturing method of sealed opening part in hermetic battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56139783A JPS5842168A (en) | 1981-09-07 | 1981-09-07 | Manufacturing method of sealed opening part in hermetic battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5842168A true JPS5842168A (en) | 1983-03-11 |
Family
ID=15253313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56139783A Pending JPS5842168A (en) | 1981-09-07 | 1981-09-07 | Manufacturing method of sealed opening part in hermetic battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5842168A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6730433B2 (en) | 2002-01-16 | 2004-05-04 | The Gillette Company | Thin-wall anode can |
| CN104112829A (en) * | 2013-04-15 | 2014-10-22 | 罗伯特·博世有限公司 | Memory Cell And Method For Manufacturing Same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5321748A (en) * | 1976-08-12 | 1978-02-28 | Varta Batterie | Battery * especially alkaline storage battery |
-
1981
- 1981-09-07 JP JP56139783A patent/JPS5842168A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5321748A (en) * | 1976-08-12 | 1978-02-28 | Varta Batterie | Battery * especially alkaline storage battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6730433B2 (en) | 2002-01-16 | 2004-05-04 | The Gillette Company | Thin-wall anode can |
| CN104112829A (en) * | 2013-04-15 | 2014-10-22 | 罗伯特·博世有限公司 | Memory Cell And Method For Manufacturing Same |
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