JPS6323880Y2 - - Google Patents
Info
- Publication number
- JPS6323880Y2 JPS6323880Y2 JP1982035780U JP3578082U JPS6323880Y2 JP S6323880 Y2 JPS6323880 Y2 JP S6323880Y2 JP 1982035780 U JP1982035780 U JP 1982035780U JP 3578082 U JP3578082 U JP 3578082U JP S6323880 Y2 JPS6323880 Y2 JP S6323880Y2
- Authority
- JP
- Japan
- Prior art keywords
- injection tube
- electrolyte injection
- current collector
- battery
- electrolyte
- 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.)
- Expired
Links
- 239000003792 electrolyte Substances 0.000 claims description 59
- 238000002347 injection Methods 0.000 claims description 39
- 239000007924 injection Substances 0.000 claims description 39
- 239000011521 glass Substances 0.000 claims description 13
- 238000010248 power generation Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- Y02E60/12—
Description
【考案の詳細な説明】
本考案は、例えばリチウム電池や銀電池などの
ような有機液体あるいは水溶液を電解液として用
いる密閉形電池に係り、特に封口部分の構造に関
するものである。[Detailed Description of the Invention] The present invention relates to a sealed battery such as a lithium battery or a silver battery that uses an organic liquid or an aqueous solution as an electrolyte, and particularly relates to the structure of a sealed portion.
第１図は、この種電池の組立工程を説明するた
めの図である。陰極端子を兼ねる電池容器１の内
側には、例えばリチウムからなる陰極２と、二酸
化マンガンを主体とする陽極３と、両者間に介在
されたセパレータ４とが装填され、電池容器１の
開口部は電池蓋５で封口されている。電池蓋５の
中央部にはガラス層６を介して集電体７が支持さ
れ、集電体７の大部分は陽極３に埋設されてい
る。電池蓋５と集電体７はガラス層６によつて電
気的に絶縁されているから、電池蓋５の外周部と
電池容器１の上端開口部とはその全周にわたつて
溶接８により一体に接合されている。前述の電池
蓋５−ガラス層６−集電体７の間におけるメタル
−ガラス−メタル接合ならびに電池容器１−電池
蓋５の間におけるメタル−メタル接合により、各
接合部の気液密性が維持されるようになつてい
る。 FIG. 1 is a diagram for explaining the assembly process of this type of battery. The inside of the battery container 1, which also serves as a cathode terminal, is loaded with a cathode 2 made of, for example, lithium, an anode 3 mainly made of manganese dioxide, and a separator 4 interposed between the two. It is sealed with a battery cover 5. A current collector 7 is supported in the center of the battery lid 5 via a glass layer 6, and most of the current collector 7 is buried in the anode 3. Since the battery cover 5 and the current collector 7 are electrically insulated by the glass layer 6, the outer periphery of the battery cover 5 and the upper opening of the battery container 1 are welded together by welding 8 over the entire circumference. is joined to. The aforementioned metal-glass-metal bond between the battery lid 5, glass layer 6, and current collector 7 and metal-metal bond between the battery container 1 and the battery lid 5 maintain air-liquid tightness of each joint. It is becoming more and more common.
ところで、発電要素を内填した電池容器１の開
口部に電池蓋５を嵌合して両者を溶接する際、そ
の溶接部は一瞬の間にせよ金属の融点まで温度上
昇する。例えば電池容器１ならびに電池蓋５の材
質がともにステンレス鋼の場合1400〜1500℃に加
熱されることになり、従つて電池容器１の内部も
かなり温度上昇する。そのため有機液体など沸点
の低い電解液は電池蓋５を電池容器１に溶接した
のち注入する方が有利である。この電解液を注入
する手段として、電池蓋に予め電解液注入口を穿
設してそこから注入する方法と、第１図に示すよ
うに貫通した中空穴９を有するパイプ状の集電体
７を用い、その中空穴９を電解液注入穴として電
解液１０を注入する方法とがある。前者の方法で
は、電池蓋の１つ１つに電解液注入口を穿設する
必要があり、工程数が増えコスト高になる。これ
に対し後者の方法ではパイプ状の素材を所定寸法
に切断すればよいだけであるから、量産に適し安
価であるばかりでなく、発電要素の内部に電解液
１０を迅速に供給することができるなどの利点を
有している。 By the way, when the battery cover 5 is fitted into the opening of the battery container 1 containing the power generation element and the two are welded, the temperature of the welded portion rises to the melting point of the metal, even if only for a moment. For example, if both the battery container 1 and the battery lid 5 are made of stainless steel, they will be heated to 1,400 to 1,500° C., and therefore the temperature inside the battery container 1 will also rise considerably. Therefore, it is advantageous to inject the electrolytic solution with a low boiling point, such as an organic liquid, after welding the battery lid 5 to the battery container 1. As a means for injecting this electrolyte, there is a method in which an electrolyte inlet is previously drilled in the battery lid and the electrolyte is injected from there, and a pipe-shaped current collector 7 having a hollow hole 9 extending therethrough as shown in FIG. There is a method in which the hollow hole 9 is used as an electrolyte injection hole and the electrolyte 10 is injected. In the former method, it is necessary to drill an electrolyte injection port in each battery lid, which increases the number of steps and increases costs. On the other hand, in the latter method, it is only necessary to cut the pipe-shaped material to a predetermined size, so it is not only suitable for mass production and inexpensive, but also allows the electrolyte 10 to be quickly supplied inside the power generation element. It has the following advantages.
ところがこのパイプ状の集電体７を用いるもの
においても難点がない訳ではない。すなわち、集
電体７の材質として、優れた導電性を有し、しか
もガラス層６との密着性が良く、熱伸縮特性がで
きるだけガラスと近似しているなどの条件が要求
される。このために集電体７の材質の選択範囲が
制限され、実際に使用できる材質としてタンタル
程度しかなく、この材質で電池の底部近くまで延
びる集電体７を使用すれば、電池のコスト高を招
くことになる。また集電体７の中空穴９から注入
された電解液１０は中空穴９の下端開口より各発
電要素内に流出されるため、発電要素の下部側で
は電解液が過剰状態に、一方、発電要素の上部側
では不足状態になりがちである。さらに、集電の
均一性を考慮する集電体７と電極（この場合は陽
極３）との接合部全体が密着している方が望まし
い。しかし、前述のように集電体７の下部ではそ
の周囲が電解液過剰状態になつているため、集電
体７と電極との接触が悪くなり電子伝導性が悪
い。このように電解液の不均一分布ならびに電子
伝導性の低下が原因して、十分な放電特性が得ら
れない。 However, even those using this pipe-shaped current collector 7 are not without drawbacks. That is, the material of the current collector 7 is required to have excellent conductivity, good adhesion to the glass layer 6, and thermal expansion and contraction properties as close as possible to those of glass. For this reason, the selection range of materials for the current collector 7 is limited, and the only material that can actually be used is tantalum. If the current collector 7 made of this material is used and extends close to the bottom of the battery, the cost of the battery can be increased. I will invite you. Furthermore, since the electrolytic solution 10 injected from the hollow hole 9 of the current collector 7 flows out into each power generation element from the lower end opening of the hollow hole 9, the electrolyte is in an excessive state at the lower part of the power generation element, while the power generation The upper part of the element tends to be in short supply. Furthermore, in consideration of uniformity of current collection, it is desirable that the entire joint between the current collector 7 and the electrode (in this case, the anode 3) be in close contact with each other. However, as described above, since the area around the lower part of the current collector 7 is in an excessive electrolyte state, the contact between the current collector 7 and the electrode is poor, and the electron conductivity is poor. As described above, due to the non-uniform distribution of the electrolyte and the decrease in electron conductivity, sufficient discharge characteristics cannot be obtained.
本考案の目的は、このような従来技術の欠点を
解消し、安価でしかも優れた放電性能を有する密
閉形電池を提供するにある。 An object of the present invention is to eliminate the drawbacks of the prior art and provide a sealed battery that is inexpensive and has excellent discharge performance.
この目的を達成するため、本考案は、電池蓋の
所定個所に設けられた透孔にガラス層を介して下
方の発電要素まで到達しない電解液注入管が保持
され、その電解液注入管の中空部に、電解液注入
管の内径より小さい外径を有し頭部に電解液注入
管の内径より大きい閉塞部を設けた中実状の集電
棒を挿入して、その集電棒と電解液注入管との間
に隙間を形成するとともに、集電棒の下部を一方
の電極に接触せしめ、前記閉塞部で電解液注入管
の上端開口を気液密に閉塞したことを特徴とす
る。 In order to achieve this objective, the present invention has an electrolyte injection tube that does not reach the power generation element below through the glass layer, and that the electrolyte injection tube is held in a through hole provided at a predetermined location of the battery lid. Insert a solid current collector rod, which has an outer diameter smaller than the inner diameter of the electrolyte injection tube and a blockage part larger than the inner diameter of the electrolyte injection tube at the head, into the section, and connect the current collector rod and the electrolyte injection tube. The present invention is characterized in that a gap is formed between the electrolyte injection tube and the lower end of the current collector rod is brought into contact with one of the electrodes, and the upper end opening of the electrolyte injection tube is closed in an air-liquid tight manner by the closing portion.
次に本考案の実施例を第２図ないし第４図とと
もに説明する。第２図は電池の組立途中の状態を
示す図、第３図は電池の組立完了の状態を示す
図、第４図はその電池の要部拡大断面図である。 Next, an embodiment of the present invention will be described with reference to FIGS. 2 to 4. FIG. 2 is a diagram showing a state in which the battery is being assembled, FIG. 3 is a diagram showing a state in which the battery has been assembled, and FIG. 4 is an enlarged sectional view of the main part of the battery.
ステンレス鋼からなる電池蓋５の中央透孔には
ガラス層６を介して電解液注入管１１が保持され
ており、この電解液注入管１１はガラス層６との
密着性が良好なタンタルから作られている。電解
液注入管１１の上方への突出寸法は従来の集電体
７とほぼ同じであるが、下端はガラス層６の下面
とほぼ面一かあるいはそれより若干突出してお
り、陽極３までには到達していない。第２図に示
すように、電池容器１の開口部を電池蓋５で閉塞
し、両者の接合部全周を溶接８したのち、電解液
注入管１１を通して電池容器１内の空気を吸引
し、内部を減圧状態にする。その後に電解液注入
管１１にパイプ１２を接続し、減圧状態になつて
いる電池容器１内に所定量の電解液１０を注入す
る。注入された電解液１０は陽極３や陰極２の上
面に散布されて、全体的に分布する。 An electrolyte injection tube 11 is held in the center hole of the battery lid 5 made of stainless steel through a glass layer 6, and the electrolyte injection tube 11 is made of tantalum which has good adhesion to the glass layer 6. It is being The upward protrusion dimension of the electrolyte injection tube 11 is almost the same as that of the conventional current collector 7, but the lower end is almost flush with the lower surface of the glass layer 6 or protrudes slightly more than that, and up to the anode 3. not reached. As shown in FIG. 2, after closing the opening of the battery container 1 with the battery lid 5 and welding the entire circumference of the joint between the two, air inside the battery container 1 is sucked through the electrolyte injection tube 11. Depressurize the interior. Thereafter, the pipe 12 is connected to the electrolyte injection tube 11, and a predetermined amount of the electrolyte 10 is injected into the battery container 1 which is in a reduced pressure state. The injected electrolyte 10 is sprinkled on the upper surfaces of the anode 3 and the cathode 2 and is distributed throughout.
次にステンレス鋼、ニツケル、鉄など集電体と
して良好な電導性を有する中実状の集電棒１３
を、第３図に示すように電解液注入管１１の中空
部を通して陽極３に差し込む。この差し込みの際
に電解液注入管１１は集電棒１３のガイドとして
役立つ。この集電棒１３の外径は電解液注入管１
１の内径よりも小さく、従つて第４図に示すよう
に集電棒１３を電解液注入管１１に挿入する際、
電解液注入管１１との間に隙間１４が形成され
る。第３図に示すように集電棒１３の下端部は差
し込みを容易にするため尖つており、また集電棒
１３の頭部には電解液注入管１１の外径とほぼ等
しい外径を有するフラツトな閉塞部１５が設けら
れている。集電棒１３の差し込みが終了したとき
にこの閉塞部１５が電解液注入管１１の上端に当
接して、集電棒１３の位置決めがなされる。 Next, a solid current collector rod 13 having good conductivity as a current collector, such as stainless steel, nickel, or iron, is used as a current collector.
is inserted into the anode 3 through the hollow part of the electrolyte injection tube 11 as shown in FIG. During this insertion, the electrolyte injection tube 11 serves as a guide for the current collector rod 13. The outer diameter of this current collector rod 13 is the electrolyte injection tube 1
Therefore, when inserting the current collector rod 13 into the electrolyte injection tube 11 as shown in FIG.
A gap 14 is formed between the electrolyte injection tube 11 and the electrolyte injection tube 11 . As shown in FIG. 3, the lower end of the current collector rod 13 is pointed to facilitate insertion, and the head of the current collector rod 13 has a flat shape with an outer diameter approximately equal to the outer diameter of the electrolyte injection tube 11. A closing portion 15 is provided. When the insertion of the current collector rod 13 is completed, the closing portion 15 comes into contact with the upper end of the electrolyte injection tube 11, and the current collector rod 13 is positioned.
しかるのち、電解液注入管１１の上端部と集電
棒１３の閉塞部１５との接合個所を、第４図に示
すように例えばレーザービーム、電子ビームある
いはプラズマアークなどの適宜な手段で溶接１６
して、電解液注入管１１の上端開口部を気液密に
閉塞する。 Thereafter, the joint portion between the upper end of the electrolyte injection tube 11 and the closed portion 15 of the current collector rod 13 is welded 16 using an appropriate means such as a laser beam, an electron beam, or a plasma arc, as shown in FIG.
Then, the upper end opening of the electrolyte injection tube 11 is closed air-liquid-tight.
本考案は前述のような構成になつており、電解
液注入管と集電体が別個になつているから、電解
液注入管にはガラス層との密着性が良い材質を、
また集電棒には電導性が良好な材質をそれぞれ選
択することができるから、選択範囲が拡張され設
計に裕度がでる。また、電解液注入管は比較的短
いものでよいから、ガラス層６との密着性の良い
比較的高価なタンタルを使用しても、さほどコス
ト高にはならず、従来のものよりも安価な電池が
得られる。しかも注入された電解液は陽極の上面
などに散布されるから、電解液の分布状態が均一
になり易く、そのために優れた放電性能が得られ
る。さらに、電解液注入管を通して電解液を電池
容器内に注入した際、電解液注入管の内周面に電
解液が付着しているため、電解液注入管の内径と
ほぼ同寸の集電棒を挿入すると、それにともなつ
て付着していた電解液が外部へ押し出されて、電
解液の不足を生じる。これに対して本考案では、
電解液注入管と集電棒の間に隙間が形成されるか
ら、集電棒挿入時に電解液が押し出されるような
ことがなく、所定量の電解液が確実に注入でき、
品質の安定した密閉形電池が得られる。 The present invention has the above-mentioned configuration, and since the electrolyte injection tube and the current collector are separate, the electrolyte injection tube is made of a material that has good adhesion to the glass layer.
Furthermore, since materials with good conductivity can be selected for the current collecting rods, the range of selection is expanded and design flexibility is provided. In addition, since the electrolyte injection tube only needs to be relatively short, even if relatively expensive tantalum, which has good adhesion to the glass layer 6, is used, the cost will not be so high, and it will be cheaper than the conventional one. A battery is obtained. Moreover, since the injected electrolyte is spread over the upper surface of the anode, the distribution of the electrolyte tends to be uniform, and therefore excellent discharge performance can be obtained. Furthermore, when the electrolyte is injected into the battery container through the electrolyte injection tube, the electrolyte adheres to the inner circumferential surface of the electrolyte injection tube, so a current collector rod with approximately the same size as the inner diameter of the electrolyte injection tube is used. When inserted, the attached electrolyte is pushed out, resulting in a shortage of electrolyte. In contrast, in this invention,
Since a gap is formed between the electrolyte injection tube and the current collector rod, the electrolyte will not be pushed out when the current collector rod is inserted, and the predetermined amount of electrolyte can be reliably injected.
A sealed battery with stable quality can be obtained.
第１図は従来の密閉形電池の組立工程を説明す
るための断面図、第２図および第３図は本考案の
実施例に係る密閉形電池の組立途中の状態ならび
に組立完了の状態を示す断面図、第４図はその電
池の要部拡大断面図である。
２……陰極、３……陽極、４……セパレータ、
５……電池蓋、６……ガラス層、１０……電解
液、１１……電解液注入管、１３……集電棒、１
４……隙間、１５……頭部、１６……溶接。
FIG. 1 is a cross-sectional view for explaining the assembly process of a conventional sealed battery, and FIGS. 2 and 3 show a sealed battery according to an embodiment of the present invention during assembly and after assembly. FIG. 4 is an enlarged sectional view of the main part of the battery. 2... cathode, 3... anode, 4... separator,
5... Battery lid, 6... Glass layer, 10... Electrolyte, 11... Electrolyte injection tube, 13... Current collector rod, 1
4...Gap, 15...Head, 16...Welding.
Claims (1)
で封口され、その電池蓋の外周部が電池容器の開
口部に溶接される密閉形電池において、 前記電池蓋の所定個所に設けられた透孔にガラ
ス層を介して下方の発電要素まで到達しない電解
液注入管が保持され、その電解液注入管の中空部
に、電解液注入管の内径より小さい外径を有し頭
部に電解液注入管の内径より大きい閉塞部を設け
た中実状の集電棒を挿入して、その集電棒と電解
液注入管との間に隙間を形成するとともに、集電
棒の下部を一方の電極に接触せしめ、前記閉塞部
で電解液注入管の上端開口部を閉塞して、その閉
塞部と電解液注入管の上端開口部とを溶接したこ
とを特徴とする密閉形電池。[Claims for Utility Model Registration] In a sealed battery in which the opening of a battery container loaded with a power generation element is sealed with a battery lid, and the outer periphery of the battery lid is welded to the opening of the battery container, An electrolyte injection tube that does not reach the power generation element below through the glass layer is held in a through hole provided at a predetermined location, and a hollow part of the electrolyte injection tube has an outer diameter smaller than the inner diameter of the electrolyte injection tube. A solid current collector rod with a closed part larger than the inner diameter of the electrolyte injection tube is inserted into the head to form a gap between the current collector rod and the electrolyte injection tube, and the lower part of the current collector rod is inserted. is brought into contact with one electrode, the upper end opening of the electrolyte injection tube is closed with the closing part, and the closing part and the upper end opening of the electrolyte injection tube are welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3578082U JPS58139666U (en) | 1982-03-16 | 1982-03-16 | sealed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3578082U JPS58139666U (en) | 1982-03-16 | 1982-03-16 | sealed battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58139666U JPS58139666U (en) | 1983-09-20 |
| JPS6323880Y2 true JPS6323880Y2 (en) | 1988-06-30 |
Family
ID=30047241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3578082U Granted JPS58139666U (en) | 1982-03-16 | 1982-03-16 | sealed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58139666U (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4112507Y1 (en) * | 1964-03-10 | 1966-06-13 | ||
| JPS4870824A (en) * | 1971-12-23 | 1973-09-26 | ||
| JPS5162330A (en) * | 1974-11-27 | 1976-05-29 | Japan Storage Battery Co Ltd | Denchi |
| US3982958A (en) * | 1971-12-23 | 1976-09-28 | Union Carbide Corporation | Non-aqueous battery system |
| JPS5547252U (en) * | 1978-09-22 | 1980-03-27 | ||
| US4255499A (en) * | 1980-03-14 | 1981-03-10 | Union Carbide Corporation | High pressure safety vent for galvanic dry cells |
-
1982
- 1982-03-16 JP JP3578082U patent/JPS58139666U/en active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4112507Y1 (en) * | 1964-03-10 | 1966-06-13 | ||
| JPS4870824A (en) * | 1971-12-23 | 1973-09-26 | ||
| US3982958A (en) * | 1971-12-23 | 1976-09-28 | Union Carbide Corporation | Non-aqueous battery system |
| JPS5162330A (en) * | 1974-11-27 | 1976-05-29 | Japan Storage Battery Co Ltd | Denchi |
| JPS5547252U (en) * | 1978-09-22 | 1980-03-27 | ||
| US4255499A (en) * | 1980-03-14 | 1981-03-10 | Union Carbide Corporation | High pressure safety vent for galvanic dry cells |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58139666U (en) | 1983-09-20 |
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