JPS6033574Y2 - spiral battery - Google Patents

spiral battery

Info

Publication number
JPS6033574Y2
JPS6033574Y2 JP1980125199U JP12519980U JPS6033574Y2 JP S6033574 Y2 JPS6033574 Y2 JP S6033574Y2 JP 1980125199 U JP1980125199 U JP 1980125199U JP 12519980 U JP12519980 U JP 12519980U JP S6033574 Y2 JPS6033574 Y2 JP S6033574Y2
Authority
JP
Japan
Prior art keywords
current collector
plate
spiral
collector rod
rod
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
Application number
JP1980125199U
Other languages
Japanese (ja)
Other versions
JPS5750967U (en
Inventor
精一 松島
徹夫 川合
宏 山本
Original Assignee
日立マクセル株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日立マクセル株式会社 filed Critical 日立マクセル株式会社
Priority to JP1980125199U priority Critical patent/JPS6033574Y2/en
Publication of JPS5750967U publication Critical patent/JPS5750967U/ja
Application granted granted Critical
Publication of JPS6033574Y2 publication Critical patent/JPS6033574Y2/en
Expired legal-status Critical Current

Links

Classifications

    • Y02E60/12

Description

【考案の詳細な説明】 本考案は渦巻式電池に関する。[Detailed explanation of the idea] The present invention relates to a spiral battery.

一般に渦巻式電池は集電棒に陰極板および陽極板を渦巻
状に巻きつけて渦巻電極を形成する工程を経て製造され
る。
Generally, a spiral battery is manufactured through a process of spirally winding a cathode plate and an anode plate around a current collector rod to form a spiral electrode.

そして、この渦巻電極の形成に際して、集電棒の側面に
陰極または陽極側の集電体の端部をスポット溶接するこ
とが行なわれる。
When forming this spiral electrode, the end of the current collector on the cathode or anode side is spot welded to the side surface of the current collector rod.

ところが、溶接される部分は、集電棒の円周状側面と直
線状の集電体の端部との接点にすぎず、とくにカメラな
どに内蔵される小型の電池では、集電棒は直径が約1.
5間、長さが約1077!I11の小さいものであって
、そのような点接触の溶接では充分な溶接強度が得られ
ず、集電棒の周囲に極板を巻きつける際に、集電体が集
電棒から離脱することがしばしば生じる。
However, the part to be welded is only the contact point between the circumferential side of the current collector rod and the end of the straight current collector, and especially for small batteries built into cameras etc., the current collector rod has a diameter of approximately 1.
5 minutes, the length is about 1077! I11 is small, and sufficient welding strength cannot be obtained with such point contact welding, and the current collector often separates from the current collector rod when wrapping the electrode plate around the current collector rod. arise.

本考案は、そのような事情に鑑みてなされたものであり
、断面円形の集電棒の側面の一部を切削、圧潰などによ
り平らな面にし、該平面部に集電体の端部をスポット溶
接することにより、溶接部分の面積を広くしてスポット
溶接を容易かつ確実に行なえるようにし、かつ溶接強度
を増加させ、集電棒の周囲に極板を巻きつけて渦巻電極
を形成する際に、集電体が集電棒から離脱するのを防止
するようにしたものである。
The present invention was developed in view of such circumstances, and involves cutting or crushing a part of the side surface of a current collector rod with a circular cross section to make it a flat surface, and spotting the end of the current collector on the flat surface. By welding, the area of the welded part is widened so that spot welding can be performed easily and reliably, and the welding strength is increased.It is also useful when wrapping the electrode plate around the current collector rod to form a spiral electrode. , to prevent the current collector from detaching from the current collecting rod.

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図は本考案において用いる集電棒の一例を示す正面
図であり、第2図は第1図のX−X線における断面図で
あり、集電棒7は拡大した頭部71を有し、その本体部
分の円周状の側面72の一部は切削、圧潰などの適宜の
手段により平らな面に腰該平面図73にたとえば溶接金
網よりなる集電体3の端部がスポット溶接される。
FIG. 1 is a front view showing an example of the current collector rod used in the present invention, and FIG. 2 is a cross-sectional view taken along the line X-X in FIG. 1. The current collector rod 7 has an enlarged head 71, A part of the circumferential side surface 72 of the main body portion is made into a flat surface by appropriate means such as cutting or crushing, and the end portion of the current collector 3 made of, for example, a welded wire mesh is spot welded to the plan view 73. .

第3図は本考案の一実施例を示す渦巻式有機電解質電池
の部分断面図、第4図はその第3図Y−Y線における断
面図であり、前記のようにしてその端部が集電棒7の側
面72の平面部73にスポット溶接された集電体3にリ
チウム板2を圧着して陰極板1を形成し、この陰極板1
に、陽極合剤5を集電体6に保持せしめて形成しポリプ
ロピレン不織布よりなるセパレータ8で包んだ陽極板4
を重ね合わせ、集電棒7を芯にしてその周囲に陰極板1
および陽極板4をセパレータ8で隔離しつつ渦巻状に巻
き付けて渦巻電極が形成され、ステンレス製の内街9に
収納されている。
FIG. 3 is a partial sectional view of a spiral organic electrolyte battery showing an embodiment of the present invention, and FIG. 4 is a sectional view taken along line Y-Y in FIG. The cathode plate 1 is formed by crimping the lithium plate 2 to the current collector 3 spot-welded to the flat part 73 of the side surface 72 of the electric rod 7.
An anode plate 4 formed by holding an anode mixture 5 on a current collector 6 and wrapped with a separator 8 made of a polypropylene nonwoven fabric.
are placed one on top of the other, and the cathode plate 1 is placed around the current collector rod 7 as the core.
A spiral electrode is formed by spirally winding the anode plate 4 while separating it with a separator 8, and is housed in a stainless steel interior 9.

そして陽極板4の外部側の端部では集電体6が陽極合剤
5より突き出ていて内街9の側壁内面にスポット溶接さ
れている。
At the outer end of the anode plate 4, a current collector 6 protrudes from the anode mixture 5 and is spot welded to the inner surface of the side wall of the inner street 9.

内街9の外側にはニッケルーステンレスクラツド板より
なる陽極缶10が配置され、この陽極缶10と陰極板1
および集電棒7との間は樹脂製の絶縁板11によって絶
縁され、また陰極板1と内街9との間には樹脂製の絶縁
リング12が配置されていて、陰極板1と内街9との絶
縁が保たれている。
An anode can 10 made of a nickel-stainless steel clad plate is arranged outside the inner city 9, and the anode can 10 and the cathode plate 1
and the current collector rod 7 are insulated by a resin insulating plate 11, and a resin insulating ring 12 is arranged between the cathode plate 1 and the inner wall 9. insulation is maintained.

集電棒7の頭部71は内街9の中央部に設けた穴より突
き出ていて、その上端突出部にはニッケルーステンレス
クラツド板よりなる陰極端子板13がスポット溶接され
、この陰極端子板13と陽極缶10の開口端部との間に
はポリプロピレン製の環状バッキング14が配設され、
陽極缶10の開口端部の内方への締め付けにより電池内
部が密閉構造にされている。
The head 71 of the current collector rod 7 protrudes from a hole provided in the center of the inner wall 9, and a cathode terminal plate 13 made of a nickel-stainless steel plate is spot welded to the upper end protrusion of the head 71. A polypropylene annular backing 14 is disposed between the anode can 13 and the open end of the anode can 10.
The interior of the battery is sealed by tightening the open end of the anode can 10 inward.

そして、この電池には炭酸プロピレンと1,2−ジメト
キシエタンとの容量比が1:1の混合溶媒に過塩素酸リ
チウムを1.0モル/lの割合で溶解させてなる電解液
が注入され、陽極合剤5としては二酸化マンガン100
部(重量部、以下同様)、りん状黒鉛W部およびポリテ
トラフルオロエチレン1部よりなるものが用いられ、集
電体3,6としては線径0.1mmのステンレス線を6
0メツシユの網目に平織したものを真空中1.000°
Cに加熱し、ステンレス線交叉点を圧着し溶接すること
によって作製した溶接ステンレス網が用いられ、集電棒
7はステンレス製のものが使用されている。
Then, an electrolytic solution made by dissolving lithium perchlorate at a ratio of 1.0 mol/l in a mixed solvent of propylene carbonate and 1,2-dimethoxyethane with a volume ratio of 1:1 was injected into this battery. , as the anode mixture 5, manganese dioxide 100
(parts by weight, the same applies hereinafter), W parts of phosphorous graphite, and 1 part of polytetrafluoroethylene are used.As the current collectors 3 and 6, 6 parts of stainless wire with a wire diameter of 0.1 mm are used.
A plain weave with a mesh of 0 mesh is woven at 1.000° in vacuum.
A welded stainless steel mesh fabricated by heating to C, crimping and welding the intersection points of stainless steel wires is used, and the current collector rod 7 is made of stainless steel.

上記電解液の注入は、陽極缶10に渦巻電極を内街9と
ともに収納した後に行われるが、極板は多少剛性を有す
るので、集電棒7に巻き付けた際、集電棒7の平面部7
3に完全には密着せず、極板と集電棒7の平面部73と
の間には隙間が生じ、この集電棒7の平面部73と極板
との間に生じた隙間が上記電解液の注入時に電解液を電
池の底部に行き渡らせるための通路となり、電解液の注
入が迅速になり、かつ電解液が電池全体にわたって均一
に分布されるようになる。
The electrolyte is injected after the spiral electrode is housed in the anode can 10 together with the inner wall 9. However, since the electrode plate has some rigidity, when it is wound around the current collector rod 7, the flat part of the current collector rod 7
3, and a gap is created between the electrode plate and the flat part 73 of the current collector rod 7, and the gap created between the flat part 73 of the current collector rod 7 and the electrode plate is filled with the electrolytic solution. This provides a channel for the electrolyte to spread to the bottom of the cell during injection, making the injection of the electrolyte faster and ensuring that the electrolyte is evenly distributed throughout the cell.

つぎに第1表は、前記実施例に示す本考案の電池と従来
電池の渦巻電極形成時における不良発生率を示すもので
ある。
Next, Table 1 shows the failure rate during the formation of spiral electrodes for the battery of the present invention shown in the above example and the conventional battery.

なお従来電池における渦巻電極の形成は、集電棒の円状
側面を平らにすることなく、集電体の端部を集電棒の側
面にスポット溶接したほかは本考案電池の渦巻電極の形
成と同様に行なわれたものである。
The spiral electrode in the conventional battery was formed in the same way as the spiral electrode in the battery of the present invention, except that the end of the current collector was spot welded to the side surface of the current collector rod without flattening the circular side surface of the current collector rod. It was carried out in

そして不良発生原因は陰極板および陽極板を集電棒に巻
きつける際の集電体の集電棒からの離脱によるものであ
る。
The cause of the failure is the detachment of the current collector from the current collector rod when the cathode plate and the anode plate are wound around the current collector rod.

第1表に示すように、従来電池では渦巻電極形成時に、
集電体の集電棒からの離脱が実に24%も発生したのに
対し、本考案の電池ではそのような不良発生がなく、渦
巻電極を容易かつ確実に形成することができるようにな
った。
As shown in Table 1, in conventional batteries, when forming spiral electrodes,
In fact, as many as 24% of the current collectors separated from the current collector rods, but in the battery of the present invention, such defects did not occur, and a spiral electrode could be formed easily and reliably.

なお実施例では集電棒7を陰極集電棒として用い、該集
電棒にスポット溶接する集電体3を陰極側の集電体そし
て用いる場合について説明したが、電池系内の陰陽をす
べて逆にして、集電棒を陽極集電棒として用い、該集電
棒にスポット溶接する集電体を陽極側の集電体として用
いることをできるものである。
In the embodiment, the current collector rod 7 is used as a cathode current collector rod, and the current collector 3 spot-welded to the current collector rod is used as a current collector on the cathode side. The current collector rod can be used as an anode current collector rod, and the current collector spot-welded to the current collector rod can be used as the anode side current collector.

また集電体3,6として溶接金網を例にあげたが、それ
のみに限られるものではなく、通常の金網、エキスパン
デッドメタルなどの他のものも用いることができるし、
また集電体を集電棒にスポット溶接したのちリチウム板
を圧着する例をあげたが、集電体にリチウム板を圧着し
、そののち集電体の端部を集電棒にスポット溶接しても
よいことはもちろんである。
In addition, although welded wire mesh is given as an example as the current collectors 3 and 6, it is not limited to this, and other materials such as ordinary wire mesh and expanded metal can also be used.
In addition, although we have given an example in which a lithium plate is crimped after spot welding a current collector to a current collector rod, it is also possible to crimp a lithium plate to a current collector and then spot weld the end of the current collector to a current collector rod. Of course it's a good thing.

また実施例を有機電解質電池の場合について説明したが
、本考案はそれのみに限定されるものではなく、たとえ
ばアルカリ電池などの他の渦巻式電池にも適用されるも
のである。
Furthermore, although the embodiments have been described in the case of an organic electrolyte battery, the present invention is not limited thereto, but can also be applied to other spiral type batteries such as alkaline batteries.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案において用いる集電棒の一例を示す正面
図であり、第2図は第1図のX−X線における断面図で
ある。 第3図は本考案の一実施例を示す渦巻式有機電解質電池
の部分断面図、第4図はその第3図Y−Y線における断
面図である。 1・・・・・・陰極板、3・・・・・・集電体、4・・
・・・・陽極板、7・・・・・・集電棒、72・・・・
・・集電棒の側面、73・・・・・・集電棒の側面にお
ける平面部、8・・・・・・セパレータ。
FIG. 1 is a front view showing an example of a current collector rod used in the present invention, and FIG. 2 is a sectional view taken along the line X--X in FIG. 1. FIG. 3 is a partial sectional view of a spiral-type organic electrolyte battery showing an embodiment of the present invention, and FIG. 4 is a sectional view taken along line Y--Y in FIG. 3. 1... Cathode plate, 3... Current collector, 4...
... Anode plate, 7 ... Current collector rod, 72 ...
...Side surface of the current collector rod, 73... Flat portion on the side surface of the current collector rod, 8... Separator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 断面円形の集電棒7の側面の一部を平らな面にし、該平
面部73に一方の極板の集電体3の端部をスポット溶接
し、上記集電棒7に陰極板1および陽極板4をセパレー
タ8で隔離しつつ渦巻状に巻き付けて渦巻電極を形成上
たことを特徴とする渦巻式電池。
A part of the side surface of the current collector rod 7 having a circular cross section is made into a flat surface, and the end of the current collector 3 of one electrode plate is spot welded to the flat surface 73, and the cathode plate 1 and the anode plate are attached to the current collector rod 7. A spiral battery characterized in that a spiral electrode is formed by winding a spiral electrode 4 in a spiral shape while separating the electrodes with a separator 8.
JP1980125199U 1980-09-03 1980-09-03 spiral battery Expired JPS6033574Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1980125199U JPS6033574Y2 (en) 1980-09-03 1980-09-03 spiral battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980125199U JPS6033574Y2 (en) 1980-09-03 1980-09-03 spiral battery

Publications (2)

Publication Number Publication Date
JPS5750967U JPS5750967U (en) 1982-03-24
JPS6033574Y2 true JPS6033574Y2 (en) 1985-10-05

Family

ID=29485686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1980125199U Expired JPS6033574Y2 (en) 1980-09-03 1980-09-03 spiral battery

Country Status (1)

Country Link
JP (1) JPS6033574Y2 (en)

Also Published As

Publication number Publication date
JPS5750967U (en) 1982-03-24

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