JPH0446374Y2 - - Google Patents
Info
- Publication number
- JPH0446374Y2 JPH0446374Y2 JP7239282U JP7239282U JPH0446374Y2 JP H0446374 Y2 JPH0446374 Y2 JP H0446374Y2 JP 7239282 U JP7239282 U JP 7239282U JP 7239282 U JP7239282 U JP 7239282U JP H0446374 Y2 JPH0446374 Y2 JP H0446374Y2
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- resin tube
- resin
- terminal plate
- sealing body
- 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
- 229920005989 resin Polymers 0.000 claims description 50
- 239000011347 resin Substances 0.000 claims description 50
- 238000007789 sealing Methods 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 description 6
- 239000007773 negative electrode material Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Description
【考案の詳細な説明】 本考案は筒形アルカリ電池の改良に関する。[Detailed explanation of the idea] The present invention relates to improvements in cylindrical alkaline batteries.
アルカリ電池は電解液に強アルカリを使用する
関係上、不純物の存在や過放電などにより電池内
に多量のガスが発生して電池内部の圧力が異常に
高くなることがある。そこで、正極缶の開口部を
封口する合成樹脂製の封口体を部分的に薄肉に
し、電池内の圧力が異常に上昇したときに、該薄
肉部が破れてガスを外部に逃散させ、電解液が飛
び散るのを防止するなどの安全対策が講じられて
いる。 Because alkaline batteries use a strong alkali as an electrolyte, a large amount of gas may be generated within the battery due to the presence of impurities or overdischarge, which can cause the pressure inside the battery to become abnormally high. Therefore, the synthetic resin sealing body that seals the opening of the positive electrode can is partially made thinner, and when the pressure inside the battery rises abnormally, the thinner part ruptures and gas escapes to the outside, allowing the electrolyte to Safety measures have been taken to prevent spills.
ところで、筒形アルカリ電池では金属外装缶に
よる正極缶と負極端子板との短絡を防止するた
め、金属外装缶の施用にさきだつて、素電池を樹
脂チユーブで被覆しているが、この樹脂チユーブ
の密閉性がかなり高いので、電池内の圧力の異常
上昇により前記封口体の薄肉部が破れてガスが外
部へ出ようとしても樹脂チユーブによつて阻止さ
れ、その結果、電池が破裂して電解液が外部へ飛
び散つて事故を招くことがある。すなわち、封口
体の薄肉部の破壊により封口体外に出たガスは、
環状支持体のガス抜き孔を通過し、樹脂チユーブ
（ただし、この樹脂チユーブは絶縁リングと負極
端子板の周縁部を被覆するもので、その下端部が
絶縁リングの下面に配置し、中間部が絶縁リング
の側面と負極端子板の周縁部の側面に配置し、上
端部が負極端子板の周縁部の上部に配置してい
て、前記素電池を被覆する樹脂チユーブとは異な
るものである）や絶縁リングなどを上方に押し上
げて上記樹脂チユーブと正極缶の開口端との間を
通過して素電池を被覆する樹脂チユーブに達する
が、この素電池を被覆する樹脂チユーブの密閉性
がかなり高いので、この素電池を被覆する樹脂チ
ユーブの上端部と前記負極端子板の周縁部を被覆
する樹脂チユーブの上端部との間から電池外部へ
抜け出すことができず、その結果、上記のように
電池が破裂するようになるのである。 By the way, in cylindrical alkaline batteries, in order to prevent a short circuit between the positive electrode can and the negative terminal plate due to the metal outer can, the unit cell is covered with a resin tube prior to the application of the metal outer can. Since the sealing performance is quite high, even if the thin wall of the sealing body ruptures due to an abnormal increase in pressure inside the battery and the gas attempts to escape outside, the resin tube prevents the gas from escaping.As a result, the battery ruptures and the electrolyte is released. may scatter outside and cause an accident. In other words, the gas that escapes from the sealing body due to the destruction of the thin walled part of the sealing body,
It passes through the gas vent hole of the annular support, and the resin tube (however, this resin tube covers the periphery of the insulating ring and the negative terminal plate, its lower end is placed on the underside of the insulating ring, and the middle part is The resin tube is disposed on the side surface of the insulating ring and the side surface of the peripheral edge of the negative electrode terminal plate, and its upper end is located above the peripheral edge of the negative electrode terminal plate, and is different from the resin tube that covers the unit cell. Push the insulating ring upwards and pass between the resin tube and the open end of the positive electrode can to reach the resin tube that covers the unit cell, but the resin tube that covers this unit cell has a very high airtightness. , the battery cannot escape from between the upper end of the resin tube that covers the unit cell and the upper end of the resin tube that covers the peripheral edge of the negative terminal plate, and as a result, as described above, the battery cannot escape. It will begin to explode.
本考案はそのような欠点を解消するためになさ
れたものであり、素電池を被覆する樹脂チユーブ
にガス抜き孔を設けることによつて、ガス発生に
よる電池内部の圧力の異常上昇により封口体の薄
肉部が破れたときにガスを速やかに電池外部へ逃
散させうるようにしたものである。 The present invention was made to eliminate such drawbacks, and by providing gas vent holes in the resin tube that covers the unit cell, the sealing body is prevented from being damaged due to an abnormal increase in the pressure inside the battery due to gas generation. This allows gas to quickly escape to the outside of the battery when the thin-walled portion ruptures.
つぎに本考案の実施例を図面に基づいて説明す
る。 Next, embodiments of the present invention will be described based on the drawings.
第１図は本考案の筒形アルカリ電池の一実施例
を示す断面図であり、第２図はその要部拡大図で
ある。この電池は水酸化カリウムを電解質とする
アルカリ電解液を用いたもので、１は二酸化マン
ガンを活物質とする正極合剤であり、２は汞化亜
鉛を活物質とする負極剤である。３は正極合剤１
と負極剤２とを隔離するビニロン−レーヨン混抄
紙などからなるセパレータで、４は負極集電棒、
５は正極缶、６は正極缶の開口部を封口する合成
樹脂製の封口体である。７は金属製の環状支持体
で、８は負極集電棒４と負極端子板９との間に配
設された板ばねであり、この板ばね８はその中央
部で負極集電棒４の頭部に接触して該頭部を押圧
し、その端部で負極端子板９の周縁部に接触して
いる。１０は正極缶５と負極端子板９とを絶縁す
る絶縁リング、１１は絶縁リング１０と負極端子
板９との周縁部を被覆する樹脂チユーブであり、
１２は素電池を被覆する樹脂チユーブである。１
３は正極端子板で、１４は軸方向に継ぎ目を有す
る金属外装缶であり、この金属外装缶１４の継ぎ
目は密封されておらず、ガスの流通が可能であつ
て、ガスは上記継ぎ目を通つて金属外装缶１４の
内部から外部へ出ていくことができる。そして、
１５は樹脂リングである。 FIG. 1 is a sectional view showing an embodiment of the cylindrical alkaline battery of the present invention, and FIG. 2 is an enlarged view of the main parts thereof. This battery uses an alkaline electrolyte containing potassium hydroxide as an electrolyte, and numeral 1 is a positive electrode mixture containing manganese dioxide as an active material, and 2 is a negative electrode material containing zinc chloride as an active material. 3 is positive electrode mixture 1
A separator made of vinylon-rayon mixed paper or the like separates the negative electrode material 2 from the negative electrode material 2, and 4 is a negative electrode current collector rod;
5 is a positive electrode can, and 6 is a synthetic resin sealing body for sealing the opening of the positive electrode can. 7 is a metal annular support; 8 is a leaf spring disposed between the negative electrode current collector rod 4 and the negative electrode terminal plate 9; The head is pressed by contact with the head, and its end is in contact with the peripheral edge of the negative electrode terminal plate 9. 10 is an insulating ring that insulates the positive electrode can 5 and the negative terminal plate 9; 11 is a resin tube that covers the peripheral edge of the insulating ring 10 and the negative terminal plate 9;
12 is a resin tube that covers the unit cell. 1
3 is a positive terminal plate, and 14 is a metal can with a seam in the axial direction.The seam of this metal can 14 is not sealed, allowing gas to flow through the seam. It is possible to exit from the inside of the metal exterior can 14 to the outside. and,
15 is a resin ring.
そして、第２図に詳示されるように、封口体６
は中央に透孔６ａを有し、透孔６ａから外周側に
向つて透孔６ａの周囲に形成された厚肉部６ｂ、
防爆用の薄肉部６ｃ，断面Ｖ字状部６ｄおよび外
周縁部６ｅを有する。封口体６の厚肉部６ｄと外
周縁部６ｅとの間にはガス抜き孔７ａを有する環
状支持体７が嵌め込まれ、透孔６ａには負極集電
棒４が挿入されている。そして、封口体６は、上
記のように厚肉部６ｂと外周縁部６ｅとの間に環
状支持体７が嵌め込まれ、透孔６ａに負極集電棒
４が挿入された状態で、前記正極合剤１、負極剤
２、セパレータ３、電解液などの発電要素が収納
された正極缶６の開口部に挿入され、外周縁部６
ｅの下端が正極缶５の開口端近傍に形成された溝
５ａの底壁に当接し、正極缶５の溝５ａから先の
部分の内方への締め付けにより封口体６は正極缶
５の開口部を封口している。この封口後の正極缶
５の溝５ａから先の部分の直径（いわゆる封口部
の直径）は、正極缶５の溝５ａより底部側の正極
合剤１と接触する部分の直径（いわゆる集電部の
直径）より小さくなる。封口後の正極缶５の開口
端上には絶縁リング１０が樹脂チユーブ１１を介
して配置され、絶縁リング１０上には板ばね８の
端部が配置され、該板ばね８の端部上には負極端
子板９の周縁部が配置され、樹脂チユーブ１１が
絶縁リング１０と負極端子板９の周縁部を被覆
し、板ばね８の端部は絶縁リング１０と負極端子
板９の周縁部で挟持されている。そして、第１図
に示すように、正極端子板１３が正極缶５の底部
に配置されている。このようにして、素電池が、
発電要素と、正極缶５と、封口体６と、環状支持
体７と、板ばね８と、負極端子板９と、絶縁リン
グ１０と、樹脂チユーブ１１と、正極端子板１３
とで構成されている。 Then, as shown in detail in FIG. 2, the sealing body 6
has a through hole 6a in the center, and a thick wall portion 6b formed around the through hole 6a toward the outer circumferential side from the through hole 6a;
It has an explosion-proof thin wall portion 6c, a V-shaped cross section 6d, and an outer peripheral edge portion 6e. An annular support 7 having a gas vent hole 7a is fitted between the thick wall portion 6d and the outer peripheral edge portion 6e of the sealing body 6, and the negative electrode current collector rod 4 is inserted into the through hole 6a. The annular support 7 is fitted between the thick portion 6b and the outer peripheral edge 6e as described above, and the negative electrode current collector rod 4 is inserted into the through hole 6a. It is inserted into the opening of the positive electrode can 6 in which power generation elements such as the agent 1, the anode agent 2, the separator 3, and the electrolyte are housed, and the outer peripheral edge 6
The lower end of the positive electrode can 5 contacts the bottom wall of the groove 5a formed near the open end of the positive electrode can 5, and by tightening the portion of the positive electrode can 5 beyond the groove 5a inward, the sealing body 6 closes the opening of the positive electrode can 5. The section is sealed. After sealing, the diameter of the portion of the positive electrode can 5 beyond the groove 5a (so-called sealing portion diameter) is the diameter of the portion of the positive electrode can 5 that contacts the positive electrode mixture 1 on the bottom side of the groove 5a (so-called current collector portion). diameter) becomes smaller. An insulating ring 10 is placed on the open end of the positive electrode can 5 after sealing via a resin tube 11, an end of a leaf spring 8 is placed on the insulating ring 10, and a The peripheral edge of the negative electrode terminal plate 9 is arranged, the resin tube 11 covers the insulating ring 10 and the peripheral edge of the negative electrode terminal plate 9, and the end of the leaf spring 8 is connected to the peripheral edge of the insulating ring 10 and the negative electrode terminal plate 9. It is being pinched. As shown in FIG. 1, a positive electrode terminal plate 13 is disposed at the bottom of the positive electrode can 5. As shown in FIG. In this way, the unit cell becomes
Power generation element, positive electrode can 5, sealing body 6, annular support 7, leaf spring 8, negative electrode terminal plate 9, insulating ring 10, resin tube 11, positive electrode terminal plate 13
It is made up of.
樹脂チユーブ１２は、上記素電池の外周面、上
端部および下端部を被覆し、この樹脂チユーブ１
２による被覆後、素電池の下端部に樹脂リング１
５を配置し、上記樹脂チユーブ１２の外側に軸方
向に継ぎ目を有する金属外装缶１４を施し、該金
属外装缶１４の上端部を内方に締め付けて（この
実施例のものでは、金属外装缶１４の下端部はあ
らかじめ内方に折曲げてある）、金属外装缶１４
の上端部および下端部で上記素電池を樹脂チユー
ブ１２および樹脂リング１５を介して軸方向に締
め付けて、筒形アルカリ電池が作製されている。 The resin tube 12 covers the outer peripheral surface, upper end, and lower end of the unit cell.
After coating with 2, resin ring 1 is attached to the bottom end of the unit cell.
5, a metal exterior can 14 having a seam in the axial direction is applied to the outside of the resin tube 12, and the upper end of the metal exterior can 14 is tightened inward (in this example, the metal exterior can 14 is The lower end of the metal can 14 is bent inward in advance),
A cylindrical alkaline battery is fabricated by tightening the unit cell in the axial direction through a resin tube 12 and a resin ring 15 at the upper and lower ends.
そして、上記樹脂チユーブ１２の正極缶５の溝
５ａより少し開口側にはガス抜き孔１２ａが設け
られていて、電池内部の圧力上昇により封口体６
の薄肉部６ｃを破つて、封口体６外へ出たガス
は、環状支持体７のガス抜き孔７ａを通過し、さ
らに樹脂チユーブ１１と絶縁リング１０を上方に
押し上げて正極缶５の開口端と樹脂チユーブ１１
との間を通過して、樹脂チユーブ１２に達し、上
記樹脂チユーブ１２に設けられたガス抜き孔１２
ａを通過し、さらに金属外装缶１４の継ぎ目を通
つて速やかに電池外部へ出ていくことができるよ
うになつている。 A gas vent hole 12a is provided in the resin tube 12 on the slightly open side of the groove 5a of the positive electrode can 5.
The gas that ruptures the thin wall portion 6c and exits from the sealing body 6 passes through the gas vent hole 7a of the annular support 7, and further pushes up the resin tube 11 and the insulating ring 10 to reach the open end of the positive electrode can 5. and resin tube 11
and reaches the resin tube 12, and the gas vent hole 12 provided in the resin tube 12.
a, and can quickly exit the battery through the seam of the metal exterior can 14.
なお１６および１７は封口体６と負極集電棒４
との接面および封口体６と正極缶５との接面に介
在させたアスフアルトピツチよりなる液状パツキ
ング材である。 Note that 16 and 17 are the sealing body 6 and the negative electrode current collector rod 4.
This is a liquid packing material made of asphalt pitch interposed between the contact surface between the sealing body 6 and the positive electrode can 5 and the contact surface between the sealing body 6 and the positive electrode can 5.
上記樹脂チユーブ１２としては、たとえば塩化
ビニル樹脂製などの熱収縮性チユーブが好まし
く、その厚さは電池の大きさによるが、通常0.07
〜0.15mm、とくに１mmのものが好ましい。ガス抜
き孔１２ａは機能的には１個でもよいが、樹脂チ
ユーブは使用前平たく２枚に折畳まれている場合
が多く、その状態で孔あけ加工をする関係上、通
常は２個あけられる。そして実施例の電池におい
てもガス抜き孔１２ａは図示のもの以外にその反
対側にもう１個設けられている。ガス抜き孔１２
ａを設ける位置は、樹脂チユーブ１２の正極缶５
の溝５ａから開口端までの間を被覆する部分にさ
れる。これは、封口後の正極缶５の溝５ａから先
の部分の直径、つまり、正極缶５の溝５ａから開
口端までの間の直径は、正極缶５の溝５ａより底
部側の正極合剤１と接触する部分の直径に比べて
小さく、そのため、第２図に示すように、正極缶
５の溝５ａから開口端までの間を被覆する樹脂チ
ユーブ１２と金属外装缶１４との間に若干の隙間
があり、樹脂チユーブ１２に設けたガス抜き孔１
２ａを通つてガスが電池外部に出ていきやすいか
らである。なおガス抜き孔１２ａの大きさとして
は直径で0.5〜２mm程度あればよい。 The resin tube 12 is preferably a heat-shrinkable tube made of vinyl chloride resin, and its thickness depends on the size of the battery, but is usually 0.07 mm thick.
~0.15 mm, particularly preferably 1 mm. Functionally, it is sufficient to have one gas vent hole 12a, but since the resin tube is often folded flat into two pieces before use, and the holes are drilled in that state, two holes are usually drilled. . Also in the battery of the embodiment, in addition to the gas vent hole 12a shown in the drawing, one more gas vent hole 12a is provided on the opposite side. Gas vent hole 12
a is provided at the positive electrode can 5 of the resin tube 12.
This is the part that covers the area from the groove 5a to the opening end. This is the diameter of the portion beyond the groove 5a of the positive electrode can 5 after sealing, that is, the diameter from the groove 5a of the positive electrode can 5 to the open end. 1, and therefore, as shown in FIG. There is a gap between the gas vent holes 1 provided in the resin tube 12.
This is because gas tends to flow out of the battery through 2a. The size of the gas vent hole 12a may be about 0.5 to 2 mm in diameter.
以上詳述したように、本考案は素電池を被覆す
る樹脂チユーブにガス抜き孔を設けることによつ
て、ガス発生による電池内部の圧力の異常上昇に
より封口体の薄肉部が破れたときにガスを速やか
に電池外部へ逃散させるうるようにしたものであ
る。 As detailed above, the present invention provides a gas vent hole in the resin tube that covers the unit cell, so that when the thin wall part of the sealing body is ruptured due to an abnormal increase in the pressure inside the battery due to gas generation, the gas can be removed. The battery is designed to quickly dissipate to the outside of the battery.
第１図は本考案の筒形アルカリ電池の一実施例
を示す半截断面図であり、第２図は第１図の要部
拡大図である。
１……正極合剤、２……負極剤、３……セパレ
ータ、４……負極集電棒、５……正極缶、５ａ…
…溝、６……封口体、６ａ……透孔、６ｂ……厚
肉部、６ｃ……薄肉部、６ｂ……断面Ｖ字状部、
６ｅ……外周縁部、７……環状支持体、７ａ……
ガス抜き孔、８……板ばね、９……負極端子板、
１０……絶縁リング、１１……樹脂チユーブ、１
２……樹脂チユーブ、１２ａ……ガス抜き孔、１
３……正極端子板、１４……金属外装缶、１５…
…樹脂リング。
FIG. 1 is a half-cut sectional view showing an embodiment of the cylindrical alkaline battery of the present invention, and FIG. 2 is an enlarged view of the main part of FIG. 1. 1... Positive electrode mixture, 2... Negative electrode material, 3... Separator, 4... Negative electrode current collector rod, 5... Positive electrode can, 5a...
... Groove, 6... Sealing body, 6a... Through hole, 6b... Thick walled part, 6c... Thin walled part, 6b... V-shaped section,
6e... Outer peripheral edge, 7... Annular support, 7a...
Gas vent hole, 8... leaf spring, 9... negative terminal plate,
10...Insulating ring, 11...Resin tube, 1
2... Resin tube, 12a... Gas vent hole, 1
3... Positive terminal plate, 14... Metal exterior can, 15...
...Resin ring.
Claims (1)
目を有する金属外装缶１４と、樹脂リング１５と
からなる筒形アルカリ電池であつて、 上記素電池は、 発電要素と、正極缶５と、封口体６と、環状支
持体７と、板ばね８と、負極端子板９と、絶縁リ
ング１０と、樹脂チユーブ１１と、正極端子板１
３とからなり、 上記発電要素は正極缶５に収納され、 上記封口体６は、 中央に負極集電棒４を挿入させるための透孔６
ａと、 上記透孔６ａの周囲に形成された厚肉部６ｂ
と、 上記厚肉部６ｂの外周側に形成され、電池内部
の圧力上昇により破壊する防爆用の薄肉部６ｃ
と、 上記薄肉部６ｃの外周側に形成された断面Ｖ字
状部６ｄと、 上記断面Ｖ字状部６ｄの外周側に形成された外
周縁部６ｅとを有し、 上記環状支持体７は、ガス抜き孔７ａを有し、
上記封口体６の厚肉部６ｂと外周縁部６ｅとの間
に嵌め込まれ、 上記負極集電棒４は、封口体６の透孔６ａに挿
入され、 上記発電要素を収納した正極缶５の開口部は、
上記のように環状支持体７が厚肉部６ｂと外周縁
部６ｅとの間に嵌め込まれ、負極集電棒４が透孔
６ａに挿入された封口体６を挿入し、正極缶５の
溝５ａから先の部分の内方への締め付けによつて
封口されていて、封口後の正極缶５の溝５ａから
先の部分の直径は、正極缶５の溝５ａより底部側
の正極合剤１と接触する部分の直径より小さく、 上記絶縁リング１０は、樹脂チユーブ１１を介
して正極缶５の開口端上に配置され、 上記板ばね８は、その中央部で負極集電棒４の
頭部に接触し、その端部が絶縁リング１０と負極
端子板９の周縁部とに挟持され、 上記樹脂チユーブ１１は、絶縁リング１０と負
極端子板９の周縁部を被覆していて、絶縁リング
１０と共に上方に移動して正極缶５の開口端から
離脱可能であり、 上記正極端子板１３は、正極缶５の底部に配置
され、 上記樹脂チユーブ１２は、上記素電池の外周
面、上端部および下端部を被覆し、 上記金属外装缶１４は、上記樹脂チユーブ１２
の外側に施されていて、その上端部および下端部
で上記素電池を樹脂チユーブ１２および樹脂リン
グ１５を介して軸方向に締め付け、 上記樹脂リング１５は、上記金属外装缶１４の
下端部と樹脂チユーブ１２との間に介在する筒形
アルカリ電池において、 上記樹脂チユーブ１２の正極缶５の溝５ａから
開口端までの間を被覆する部分にガス抜き孔１２
ａを設けたことを特徴とする筒形アルカリ電池。[Claims for Utility Model Registration] A cylindrical alkaline battery consisting of a unit cell, a resin tube 12, a metal exterior can 14 having a seam in the axial direction, and a resin ring 15, the unit cell comprising: a power generation element; , positive electrode can 5 , sealing body 6 , annular support 7 , leaf spring 8 , negative electrode terminal plate 9 , insulating ring 10 , resin tube 11 , and positive electrode terminal plate 1
3, the power generating element is housed in a positive electrode can 5, and the sealing body 6 has a through hole 6 in the center for inserting the negative electrode current collector rod 4.
a, and a thick wall portion 6b formed around the through hole 6a.
and an explosion-proof thin part 6c that is formed on the outer circumferential side of the thick part 6b and is destroyed by an increase in pressure inside the battery.
The annular support body 7 has a V-shaped section 6d formed on the outer circumferential side of the thin section 6c, and an outer peripheral edge section 6e formed on the outer circumferential side of the V-shaped section 6d. , having a gas vent hole 7a,
The negative electrode current collector rod 4 is fitted between the thick part 6b and the outer peripheral edge 6e of the sealing body 6, and is inserted into the through hole 6a of the sealing body 6, and the opening of the positive electrode can 5 housing the power generation element. The department is
As described above, the annular support 7 is fitted between the thick part 6b and the outer peripheral edge 6e, and the sealing body 6 with the negative electrode current collector rod 4 inserted into the through hole 6a is inserted into the groove 5a of the positive electrode can 5. The diameter of the portion of the positive electrode can 5 beyond the groove 5a after sealing is the same as that of the positive electrode mixture 1 on the bottom side of the groove 5a of the positive electrode can 5. The insulating ring 10, which is smaller in diameter than the contacting part, is placed on the open end of the positive electrode can 5 via the resin tube 11, and the leaf spring 8 contacts the head of the negative electrode current collector rod 4 at its center. The resin tube 11 covers the insulating ring 10 and the periphery of the negative terminal plate 9, and its end portion is sandwiched between the insulating ring 10 and the periphery of the negative terminal plate 9. The positive terminal plate 13 is disposed at the bottom of the positive electrode can 5, and the resin tube 12 is attached to the outer peripheral surface, upper end, and lower end of the unit cell. The metal exterior can 14 covers the resin tube 12.
The unit cell is tightened in the axial direction via a resin tube 12 and a resin ring 15 at its upper and lower ends, and the resin ring 15 is connected to the lower end of the metal outer can 14 and the resin In the cylindrical alkaline battery interposed between the resin tube 12 and the tube 12, a gas vent hole 12 is provided in the portion of the resin tube 12 that covers the area from the groove 5a of the positive electrode can 5 to the open end.
A cylindrical alkaline battery characterized by having a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7239282U JPS58174866U (en) | 1982-05-17 | 1982-05-17 | cylindrical alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7239282U JPS58174866U (en) | 1982-05-17 | 1982-05-17 | cylindrical alkaline battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58174866U JPS58174866U (en) | 1983-11-22 |
| JPH0446374Y2 true JPH0446374Y2 (en) | 1992-10-30 |
Family
ID=30081959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7239282U Granted JPS58174866U (en) | 1982-05-17 | 1982-05-17 | cylindrical alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58174866U (en) |
-
1982
- 1982-05-17 JP JP7239282U patent/JPS58174866U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58174866U (en) | 1983-11-22 |
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