JPH1125993A - Slim battery - Google Patents

Slim battery

Info

Publication number
JPH1125993A
JPH1125993A JP17585697A JP17585697A JPH1125993A JP H1125993 A JPH1125993 A JP H1125993A JP 17585697 A JP17585697 A JP 17585697A JP 17585697 A JP17585697 A JP 17585697A JP H1125993 A JPH1125993 A JP H1125993A
Authority
JP
Japan
Prior art keywords
electrode
spacer
tab
electrode body
sealing
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
Application number
JP17585697A
Other languages
Japanese (ja)
Inventor
Yasuhiro Yamauchi
康弘 山内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP17585697A priority Critical patent/JPH1125993A/en
Publication of JPH1125993A publication Critical patent/JPH1125993A/en
Pending legal-status Critical Current

Links

Classifications

    • Y02E60/12

Abstract

PROBLEM TO BE SOLVED: To push an electrode body into an outer can with a spacer without force by enlarging a contact area between the electrode body and the spacer. SOLUTION: A slim battery is provided with an outer can 1, an electrode body 2 to be inserted into the can 1, a sealing plate 4 blocking the opening portion of the can 1, and a spacer 7 disposed between the sealing plate 4 and the electrode plate 2 preventing the dislocation of the electrode body 2. The spacer 7 is provided with connection openings 7A for inserting connection fixtures electrically connecting the electrode tabs 3 of the electrode body 2 to the sealing body insulation tabs 5 of the sealing plate 4. The spacer 7 has support protrusion portions 7B protruding upward and locally touching the sealing plate 4 on both ends and the middle of the spacer 7. The bottom face of the spacer 7 has an electrode pressing plate 7C touching the top face of the electrode body 2 and disposing the electrode body 2 at a fixed position. Connection slits 14 passing the electrode tabs 3 are opened in the electrode pressing plate 7C.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、外装缶に入れた電
極体が位置ずれするのを防止するために、電極体と封口
板との間にスペーサーを配設しているスリム電池に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slim battery in which a spacer is provided between an electrode body and a sealing plate in order to prevent an electrode body contained in an outer can from being displaced.

【0002】[0002]

【従来の技術】電池は、外装缶に内蔵している電極体を
位置ずれなく定位置に配設する必要がある。電極体を定
位置に配設するために、外装缶の開口部をかしめて、内
形を細くする構造と、封口板と電極体との間に筒状のス
ペーサーを配設する構造が採用される。外装缶の一部を
かしめる構造は、全ての電池に応用できない。たとえ
ば、角形外装缶の電池は、外装缶の隅角をかしめること
ができない。
2. Description of the Related Art In a battery, it is necessary to dispose an electrode body contained in an outer can at a fixed position without displacement. In order to dispose the electrode body in a fixed position, a structure that caulks the opening of the outer can to narrow the inner shape and a structure that arranges a cylindrical spacer between the sealing plate and the electrode body are adopted. You. The structure in which a part of the outer can is caulked cannot be applied to all batteries. For example, in the case of a battery having a rectangular outer can, the corner of the outer can cannot be caulked.

【0003】外装缶をかしめることができない電池は、
電極体と封口板との間にスペーサーを配設する。スペー
サーを内蔵する電池の断面図を図1に示している。この
電池は、電極体2が上に移動して位置ずれするのを防止
するために、外装缶1の開口部にスペーサー7を入れて
いる。スペーサー7は、プラスチックの成形品で、図2
の斜視図で示すように、外装缶1の内面に沿う筒状に成
形されている。筒状のスペーサー7は、電極体2を周縁
で押し下げて、上にずれるのを防止する。
[0003] Batteries for which the outer can cannot be caulked are:
A spacer is provided between the electrode body and the sealing plate. FIG. 1 is a cross-sectional view of a battery including a spacer. In this battery, a spacer 7 is inserted into the opening of the outer can 1 in order to prevent the electrode body 2 from moving upward and being displaced. The spacer 7 is a plastic molded product, and is shown in FIG.
As shown in a perspective view of FIG. 1, the outer can 1 is formed in a cylindrical shape along the inner surface thereof. The cylindrical spacer 7 pushes down the electrode body 2 at the peripheral edge to prevent the electrode body 2 from shifting upward.

【0004】さらに、図1に示す電池は、図3に示すよ
うに、封口板4の内面に、金属板で製作される封口体絶
縁タブ5を封口板4から絶縁して固定している。封口体
絶縁タブ5は、封口板4の上面に突出する電極端子9に
電気接続される。電極端子9と封口体絶縁タブ5の両方
が、封口板4に絶縁して固定されている。電極端子9を
絶縁するために、電極端子9と封口板4との間には絶縁
ガスケット10を挟着している。封口体絶縁タブ5を絶
縁するために、封口体絶縁タブ5と封口板4の間にはプ
ラスチック製の絶縁板8を挟着している。
Further, in the battery shown in FIG. 1, as shown in FIG. 3, a sealing member insulating tab 5 made of a metal plate is fixed on the inner surface of the sealing plate 4 insulated from the sealing plate 4. The sealing body insulating tab 5 is electrically connected to an electrode terminal 9 protruding from the upper surface of the sealing plate 4. Both the electrode terminal 9 and the sealing body insulating tab 5 are insulated and fixed to the sealing plate 4. An insulating gasket 10 is sandwiched between the electrode terminal 9 and the sealing plate 4 to insulate the electrode terminal 9. In order to insulate the sealing member insulating tab 5, a plastic insulating plate 8 is sandwiched between the sealing member insulating tab 5 and the sealing plate 4.

【0005】封口体絶縁タブ5は、薄い金属板を帯状に
切断した連結タブ6の一端に接続し、この連結タブ6の
他端を、電極体2を封口体絶縁タブ5に連結する集電タ
ブである電極タブ3に連結している。連結タブ6は、両
端を封口体絶縁タブ5と電極タブ3とに抵抗溶接しやす
いように、直角に折り曲げている。一方の折曲部は電極
タブ3に、他方の折曲部は封口体絶縁タブ5に抵抗溶接
して連結している。さらに、図1に示す電池は、連結タ
ブ6が垂れ下がるのを防止するために、スペーサー7の
対向面に支持梁11を一体成形している。連結タブ6
は、支持梁11の上に載せるように配設される。スペー
サーに支持梁がないと、長い連結タブが垂れ下がるのを
防止できない。連結タブは、短くして垂れ下がらないよ
うにできるが、短い連結タブは、封口体絶縁タブに接続
できない。連結タブを封口板に連結するときに、連結タ
ブの折曲部をスペーサーから上方に引き出して連結する
からである。スペーサーから上方に引き出して、連結タ
ブを封口体絶縁タブに連結した後、封口板をスペーサー
の上に密着させると、長い連結タブは波形に変形する。
このため、連結タブが垂れ下がって、電極体に接触しや
すくなる。この弊害を阻止するのが、スペーサー7の支
持梁11である。封口板4をスペーサー7に密着させる
状態で、直線状になる連結タブ6は、スペーサー7から
上方に引き出しできないので、封口体絶縁タブ5に連結
できない。
The cover insulating tab 5 is connected to one end of a connection tab 6 formed by cutting a thin metal plate into a strip, and the other end of the connection tab 6 is connected to the current collector for connecting the electrode body 2 to the cover insulation tab 5. It is connected to the electrode tab 3 which is a tab. The connecting tab 6 is bent at a right angle so that both ends are easily welded to the sealing member insulating tab 5 and the electrode tab 3 by resistance welding. One bent portion is connected to the electrode tab 3 and the other bent portion is connected to the sealing member insulating tab 5 by resistance welding. Further, in the battery shown in FIG. 1, a support beam 11 is integrally formed on the opposing surface of the spacer 7 in order to prevent the connection tab 6 from hanging down. Connection tab 6
Is disposed on the support beam 11. Without the support beam on the spacer, the long connecting tabs cannot be prevented from hanging down. The connecting tabs can be short to prevent sagging, but the short connecting tabs cannot be connected to the closure insulation tab. This is because when connecting the connection tab to the sealing plate, the bent portion of the connection tab is pulled out upward from the spacer and connected. After being pulled out from the spacer and connecting the connecting tab to the sealing member insulating tab, when the sealing plate is brought into close contact with the spacer, the long connecting tab is deformed into a waveform.
For this reason, the connection tab hangs down and easily contacts the electrode body. The support beam 11 of the spacer 7 prevents this adverse effect. When the sealing plate 4 is in close contact with the spacer 7, the connection tab 6 that is linear cannot be pulled out from the spacer 7, and cannot be connected to the sealing body insulating tab 5.

【0006】図1に示す電池は、図4の実線で示す工程
を経て下記のようにして製造される。 外装缶1に入れる前に、電極体2に設けた電極タブ
3に、連結タブ6の折曲部6Aを抵抗溶接する。抵抗溶
接するとき、電極タブ3と連結タブ6を溶着電極で両側
から挟着し、この状態で電極タブ3と連結タブ6に大電
流を流す。大きな電流は、電極タブ3と連結タブ6の接
触面を抵抗加熱して溶着する。 電極体2の上に筒状のスペーサー7を載せる。一端
を電極タブ3に連結している連結タブ6を、スペーサー
7に一体成形されている支持梁11の上に載せる。連結
タブ6を封口体絶縁タブ5に連結するために、連結タブ
6の他端をスペーサー7から上方に引き出す。 電気接続される封口体絶縁タブ5と電極端子9が、
絶縁状態に固定されている封口板4を用意する。この構
造の封口板4は、別の工程で製造する。 封口板4の封口体絶縁タブ5に、スペーサー7から
突出している連結タブ6の折曲部6Aを抵抗溶接する。
このときも、封口体絶縁タブ5と連結タブ6とを溶着電
極で両側から挟着し、大電流を流して加熱、溶着する。 電極体2、スペーサー7、及び、封口板4を一緒に
外装缶1に挿入する。 外装缶1の開口部に封口板4の周縁をレーザー溶接
して固定する。この工程で、外装缶1の開口部を封口板
4で閉塞する。
The battery shown in FIG. 1 is manufactured as follows through the process shown by the solid line in FIG. Before being put in the outer can 1, the bent portion 6A of the connection tab 6 is resistance-welded to the electrode tab 3 provided on the electrode body 2. When resistance welding is performed, the electrode tab 3 and the connection tab 6 are sandwiched by welding electrodes from both sides, and a large current flows through the electrode tab 3 and the connection tab 6 in this state. A large current causes the contact surface between the electrode tab 3 and the connecting tab 6 to be heated by resistance and welded. A cylindrical spacer 7 is placed on the electrode body 2. The connection tab 6 having one end connected to the electrode tab 3 is placed on a support beam 11 integrally formed with the spacer 7. To connect the connecting tab 6 to the sealing body insulating tab 5, the other end of the connecting tab 6 is pulled upward from the spacer 7. The sealing body insulating tab 5 and the electrode terminal 9 to be electrically connected are
A sealing plate 4 fixed in an insulating state is prepared. The sealing plate 4 having this structure is manufactured in another process. The bent portion 6A of the connection tab 6 protruding from the spacer 7 is resistance-welded to the sealing member insulating tab 5 of the sealing plate 4.
Also at this time, the sealing member insulating tab 5 and the connection tab 6 are sandwiched from both sides by the welding electrodes, and a large current is applied to heat and weld. The electrode body 2, the spacer 7, and the sealing plate 4 are inserted into the outer can 1 together. The periphery of the sealing plate 4 is fixed to the opening of the outer can 1 by laser welding. In this step, the opening of the outer can 1 is closed with the sealing plate 4.

【0007】図4の実線で示す工程は、連結タブ6を封
口体絶縁タブ5に連結した後に、電極体2を外装缶1に
挿入している。この方法によらず、図4の鎖線で示すよ
うに、連結タブ6を連結した電極体2を外装缶1に挿入
し、その後に、外装缶1にスペーサー7を入れて、連結
タブ6を封口体絶縁タブ5に抵抗溶接することもでき
る。鎖線で示す工程においても、連結タブ6を封口体絶
縁タブ5に連結するためには、連結タブ6の一端をスペ
ーサー7から上方に引き出す必要がある。
In the step shown by the solid line in FIG. 4, after the connection tab 6 is connected to the sealing member insulating tab 5, the electrode body 2 is inserted into the outer can 1. Regardless of this method, as shown by a chain line in FIG. 4, the electrode body 2 connected with the connection tab 6 is inserted into the outer can 1, and then the spacer 7 is inserted into the outer can 1, and the connection tab 6 is closed. Resistance welding to the body insulating tab 5 is also possible. Also in the process shown by the dashed line, one end of the connection tab 6 needs to be pulled out from the spacer 7 in order to connect the connection tab 6 to the sealing body insulating tab 5.

【0008】図1に示す従来の電池は、以上のようにし
て製造されるので、能率よく多量生産するのが難しい。
とくに、連結タブを封口体絶縁タブに連結するときに、
連結タブの一端をスペーサーから上に引き出して抵抗溶
接するので、この工程に手間がかかる。また、長い連結
タブを介して電極体を封口体絶縁タブに連結する必要が
あるので、落下等の強い衝撃で連結タブが外れやすい欠
点もある。
Since the conventional battery shown in FIG. 1 is manufactured as described above, it is difficult to mass-produce it efficiently.
Especially when connecting the connection tab to the sealing body insulation tab,
Since one end of the connection tab is pulled out from the spacer and resistance-welded, this step is troublesome. Further, since it is necessary to connect the electrode body to the sealing member insulating tab through the long connecting tab, there is a disadvantage that the connecting tab is easily detached by a strong impact such as a drop.

【0009】本願出願人は、このような欠点を解決する
ことを目的に、図5に示すスペーサーを開発した。この
スペーサー7は、下方と両側に開口して、封口体絶縁タ
ブ5の溶着片5Aと電極タブとを連結する接続具を挿入
するための接続開口7Aを設けている。この構造のスペ
ーサー7は、図6と図7に示すように、封口板4と電極
体2の間にスペーサー7を配設する状態で、電極体2を
封口体絶縁タブ5に連結できる。
The applicant of the present application has developed a spacer shown in FIG. 5 for the purpose of solving such a drawback. The spacer 7 has a connection opening 7A which is opened on the lower side and on both sides to insert a connector for connecting the welding piece 5A of the sealing body insulating tab 5 to the electrode tab. As shown in FIGS. 6 and 7, the spacer 7 having this structure can connect the electrode body 2 to the sealing body insulating tab 5 in a state where the spacer 7 is provided between the sealing plate 4 and the electrode body 2.

【0010】[0010]

【発明が解決しようとする課題】しかしながら、この構
造のスペーサーを内蔵する電池は、電極体の両側を局部
的にスペーサーで押圧して定位置に配設するので、電極
体との接触面積を広くするのが難しい。電極体とスペー
サーとの接触面積を広くすると、接続開口の幅が狭くな
って、封口体絶縁タブの接続が難しくなるからである。
電極体とスペーサーとの接触面積が狭くなる欠点は、図
2に示すスペーサーも同じである。それは、この図のス
ペーサー7は、筒状に成形して、周壁を電極体に接触さ
せているからである。
However, in a battery incorporating a spacer having this structure, both sides of the electrode body are locally pressed by the spacer and arranged at fixed positions, so that the contact area with the electrode body is increased. Difficult to do. This is because, if the contact area between the electrode body and the spacer is increased, the width of the connection opening becomes narrower, and it becomes difficult to connect the sealing body insulating tab.
The disadvantage that the contact area between the electrode body and the spacer is reduced is the same for the spacer shown in FIG. This is because the spacer 7 in this figure is formed in a cylindrical shape, and the peripheral wall is brought into contact with the electrode body.

【0011】スペーサーと電極体との接触面積が狭い電
池は、電極体を外装缶に挿入するときに、スペーサーと
電極体との接触圧が高くなる。とくに、高密度に成形さ
れた電極体を隙間なく外装缶に挿入するスリム電池は、
電極体を外装缶に無理なく挿入することが大切である。
この工程で、電極体に無理な力が作用すると、電極体の
性能が低下するからである。このことは、とくに、電極
体とスペーサーと封口板とを連結した状態で、外装缶に
挿入する電池にとって特に大切である。図4の鎖線で示
すように、電極体2を外装缶1に挿入した後、電極体2
と封口板4とを接続する電池は、電極体2を挿入具でス
ムーズに押し込みできるからである。
In a battery having a small contact area between the spacer and the electrode body, the contact pressure between the spacer and the electrode body increases when the electrode body is inserted into the outer can. In particular, a slim battery that inserts a high-density molded electrode body into an outer can without gaps,
It is important to insert the electrode body into the outer can without difficulty.
This is because, if an excessive force acts on the electrode body in this step, the performance of the electrode body deteriorates. This is particularly important for a battery inserted into an outer can in a state where the electrode body, the spacer, and the sealing plate are connected. As shown by the chain line in FIG. 4, after the electrode body 2 is inserted into the outer can 1, the electrode body 2
This is because the battery connecting the battery and the sealing plate 4 can smoothly push the electrode body 2 with the insertion tool.

【0012】本発明は、以上の要件を満足することを実
現するために開発されたもので、本発明の重要な目的
は、電極体と封口板とでスペーサーを挟着する状態で、
封口体絶縁タブを電極体に接続できると共に、スペーサ
ーで電極体を無理なく外装缶に押し込みできるスリム電
池を提供することにある。また、本発明の他の大切な目
的は、電極体とスペーサーとの接触面積を大きくして、
しかも接続開口を大きくして、封口体絶縁タブを能率よ
く電極体に電気接続できるスリム電池を提供することに
ある。
The present invention has been developed to satisfy the above-mentioned requirements, and an important object of the present invention is to provide a method in which a spacer is sandwiched between an electrode body and a sealing plate.
An object of the present invention is to provide a slim battery in which a sealing body insulating tab can be connected to an electrode body and the electrode body can be easily pushed into an outer can with a spacer. Another important object of the present invention is to increase the contact area between the electrode body and the spacer,
In addition, it is an object of the present invention to provide a slim battery in which the connection opening is enlarged and the sealing member insulating tab can be efficiently electrically connected to the electrode body.

【0013】[0013]

【課題を解決するための手段】本発明のスリム電池は、
厚さよりも幅の広い断面形状の外装缶1と、この外装缶
1に挿入される電極体2と、外装缶1の開口部を気密に
閉塞している封口板4と、封口板4に絶縁して固定され
ている電極端子9と、この電極端子9に接続されて封口
板4の内面に突出して配設されると共に、電極体2の電
極タブ3に接続されている封口体絶縁タブ5と、封口板
4と電極体2との間に配設されて、電極体2の位置ずれ
を阻止するスペーサー7とを備える。
The slim battery according to the present invention comprises:
An outer can 1 having a cross-sectional shape wider than the thickness, an electrode body 2 inserted into the outer can 1, a sealing plate 4 hermetically closing an opening of the outer can 1, and insulation to the sealing plate 4 An electrode terminal 9 fixed to the electrode terminal 9 and a sealing member insulating tab 5 connected to the electrode terminal 9 and protruding from the inner surface of the sealing plate 4 and connected to the electrode tab 3 of the electrode body 2. And a spacer 7 disposed between the sealing plate 4 and the electrode body 2 to prevent the electrode body 2 from being displaced.

【0014】さらに、本発明のスリム電池は、スペーサ
ー7を下記の独特の構成とする。 (a) スペーサー7は、上方と両側面に開口して、電
極体2の電極タブ3を封口体絶縁タブ5に電気接続する
接続具を挿入するための接続開口7Aを設けている。
(b) スペーサー7は、上方に突出して、封口板4に
局部的に接触する支持凸部7Bを有する。 (c) 支持凸部7Bは、スペーサー7の両端と中間に
設けられており、支持凸部7Bの間に接続開口7Aを設
けている。 (d) スペーサー7の底面は、電極体2の上面に接触
して、電極体2を定位置に配設する平面状の電極押圧プ
レート7Cを有する。 (e) 電極押圧プレート7Cの外形は、外装缶1の内
形にほぼ等しく、内側には、電極タブ3を貫通させる接
続スリット14を開口している。
Further, in the slim battery of the present invention, the spacer 7 has the following unique configuration. (A) The spacer 7 has an opening on the upper side and on both side surfaces, and a connection opening 7A for inserting a connector for electrically connecting the electrode tab 3 of the electrode body 2 to the sealing member insulating tab 5 is provided.
(B) The spacer 7 has a supporting projection 7B that protrudes upward and comes into contact with the sealing plate 4 locally. (C) The support protrusions 7B are provided at both ends and the middle of the spacer 7, and the connection openings 7A are provided between the support protrusions 7B. (D) The bottom surface of the spacer 7 has a flat electrode pressing plate 7C that contacts the upper surface of the electrode body 2 and arranges the electrode body 2 at a fixed position. (E) The outer shape of the electrode pressing plate 7C is substantially equal to the inner shape of the outer can 1, and a connection slit 14 through which the electrode tab 3 penetrates is opened inside.

【0015】[0015]

【発明の実施の形態】以下、本発明の実施例を図面に基
づいて説明する。ただし、以下に示す実施例は、本発明
の技術思想を具体化するためのスリム電池を例示するも
のであって、本発明はスリム電池を下記のものに特定し
ない。
Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below illustrate a slim battery for embodying the technical idea of the present invention, and the present invention does not specify the slim battery as follows.

【0016】さらに、この明細書は、特許請求の範囲を
理解しやすいように、実施例に示される部材に対応する
番号を、「特許請求の範囲の欄」、および「課題を解決
するための手段の欄」に示される部材に付記している。
ただ、特許請求の範囲に示される部材を、実施例の部材
に特定するものでは決してない。
Further, in this specification, in order to make it easier to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as "claims" and "claims". In the column of “means”.
However, the members described in the claims are not limited to the members of the embodiments.

【0017】図8はスリム電池の断面図、図9はスペー
サーの斜視図である。これ等の図に示すスリム電池は、
外装缶1と、この外装缶1に挿入された電極体2と、外
装缶1の開口部を気密に閉塞している封口板4と、封口
板4に固定されている電極端子9と、この電極端子9に
接続されて封口板4の内面に配設されている封口体絶縁
タブ5と、封口板4と電極体2との間に配設されて、電
極体2の位置ずれを阻止するスペーサー7とを備えてい
る。
FIG. 8 is a sectional view of a slim battery, and FIG. 9 is a perspective view of a spacer. The slim battery shown in these figures
An outer can 1, an electrode body 2 inserted into the outer can 1, a sealing plate 4 hermetically closing an opening of the outer can 1, an electrode terminal 9 fixed to the sealing plate 4, A sealing member insulating tab 5 connected to the electrode terminal 9 and disposed on the inner surface of the sealing plate 4 and disposed between the sealing plate 4 and the electrode body 2 to prevent the electrode body 2 from being displaced. And a spacer 7.

【0018】外装缶1は、アルミニウム、アルミニウム
合金、鉄、ステンレス等の金属製で、底を閉塞し、上端
を開口している。外装缶1は、厚さよりも幅の広い断面
形状をしている。図8に示すスリム電池は、外装缶1を
たとえば正極に、封口板4の中心に固定される電極端子
9を負極とする。ただし、外装缶を負極に、封口板の電
極端子を正極とすることもできる。
The outer can 1 is made of metal such as aluminum, aluminum alloy, iron, and stainless steel, and has a closed bottom and an open upper end. The outer can 1 has a cross-sectional shape wider than the thickness. The slim battery shown in FIG. 8 uses the outer can 1 as a positive electrode, for example, and the electrode terminal 9 fixed to the center of the sealing plate 4 as a negative electrode. However, the outer can can be used as the negative electrode, and the electrode terminal of the sealing plate can be used as the positive electrode.

【0019】電極体2は、正極板と負極板との間をセパ
レータで絶縁して積層し、これを渦巻状に巻いて、外装
缶1に挿入できる形状に押圧したものが使用できる。電
極体2は、最外周に位置する電極板を、電極タブ3を使
用することなく、直接に外装缶1に電気的に接触するこ
ともできるが、図8に示すスリム電池は、正極板と負極
板に接続している二つの電極タブ3を、連結タブを介す
ることなく、直接に封口体タブ12と封口体絶縁タブ5
とに接続している。電極体2は、正極板と負極板とに別
々に接続されてなる二つの電極タブ3を、電極体2から
上方に突出させ、電極タブ3を封口板タブ12と封口体
絶縁タブ5とに連結している。
The electrode body 2 can be used by laminating a positive electrode plate and a negative electrode plate insulated by a separator, winding the resultant in a spiral shape, and pressing it into a shape that can be inserted into the outer can 1. Although the electrode body 2 can directly contact the outermost electrode plate with the outer can 1 without using the electrode tab 3, the slim battery shown in FIG. The two electrode tabs 3 connected to the negative electrode plate are directly connected to the sealing body tab 12 and the sealing body insulating tab 5 without the connection tab.
And connected to. The electrode body 2 has two electrode tabs 3 separately connected to a positive electrode plate and a negative electrode plate, protruding upward from the electrode body 2, and the electrode tabs 3 are formed on a sealing plate tab 12 and a sealing body insulating tab 5. Connected.

【0020】これ等の図に示すように、電極体2の正極
板と負極板を、二つの電極タブ3で、封口体タブ12と
封口体絶縁タブ5とに接続する電池は、電極体2に設け
た電極タブ3を、直接に、封口体タブ12と封口体絶縁
タブ5とに連結する。ただ、最外周に巻かれた一方の電
極を、外装缶の内面に接触させて電気接続して、片方の
電極タブを封口体絶縁タブに連結することもできる。
As shown in these figures, a battery in which the positive electrode plate and the negative electrode plate of the electrode body 2 are connected to the sealing body tab 12 and the sealing body insulating tab 5 by two electrode tabs 3 is a battery. The electrode tab 3 provided in the above is directly connected to the sealing body tab 12 and the sealing body insulating tab 5. However, one electrode tab wound on the outermost periphery may be brought into contact with the inner surface of the outer can to be electrically connected to connect one electrode tab to the sealing member insulating tab.

【0021】封口板4は外装缶1と同じ金属板である。
本発明のスリム電池は、封口板4を外装缶1の開口部に
かしめて連結しない。封口板4は、たとえばレーザー溶
接等の方法で、外装缶1の開口部に沿って溶着して固定
される。外装缶1に溶着される封口板4は、外装缶1の
開口部の内側に隙間なく挿入される。封口板4と外装缶
1との間に隙間ができないように、封口板4の外形は、
外装缶1開口部の内形に等しい形状に切断される。
The sealing plate 4 is the same metal plate as the outer can 1.
In the slim battery of the present invention, the sealing plate 4 is not connected to the opening of the outer can 1 by caulking. The sealing plate 4 is welded and fixed along the opening of the outer can 1 by, for example, a method such as laser welding. The sealing plate 4 welded to the outer can 1 is inserted into the opening of the outer can 1 without any gap. The outer shape of the sealing plate 4 is set so that there is no gap between the sealing plate 4 and the outer can 1.
The outer can 1 is cut into a shape equal to the inner shape of the opening.

【0022】封口板4は、図8に示すように、上面に電
極端子9を設け、この電極端子9に接続している封口体
絶縁タブ5と、封口板4に直接接続されている封口体タ
ブ12とを下面に突出して設けている。封口体絶縁タブ
5と電極端子9は、導電性が要求されるので金属製であ
る。電極端子9と封口体絶縁タブ5は、封口板4に絶縁
して固定される。電極端子9を封口板4から絶縁するた
めに、電極端子9と封口板4との間に絶縁ガスケット1
0を挟着している。封口体絶縁タブ5を絶縁して封口板
4に固定するために、封口体絶縁タブ5と封口板4の間
に絶縁板8を挟着している。絶縁ガスケット10と絶縁
板8は、優れた絶縁性を有するプラスチック製である。
As shown in FIG. 8, the sealing plate 4 is provided with an electrode terminal 9 on the upper surface, and a sealing member insulating tab 5 connected to the electrode terminal 9 and a sealing member directly connected to the sealing plate 4. The tab 12 and the lower surface are provided to protrude. The sealing member insulating tab 5 and the electrode terminal 9 are made of metal because conductivity is required. The electrode terminals 9 and the sealing member insulating tabs 5 are insulated and fixed to the sealing plate 4. In order to insulate the electrode terminal 9 from the sealing plate 4, an insulating gasket 1 is provided between the electrode terminal 9 and the sealing plate 4.
0 is pinched. In order to insulate and secure the sealing body insulating tab 5 to the sealing plate 4, an insulating plate 8 is sandwiched between the sealing body insulating tab 5 and the sealing plate 4. The insulating gasket 10 and the insulating plate 8 are made of plastic having excellent insulating properties.

【0023】電極端子9は、封口板4を貫通する貫通軸
13を介して封口体絶縁タブ5に連結されている。電極
端子9を封口体絶縁タブ5に連結するために、貫通軸1
3は、封口体絶縁タブ5に開口された貫通孔に挿入さ
れ、その下端縁をかしめて電極端子9と封口体絶縁タブ
5を連結している。電極端子9と封口体絶縁タブ5は、
絶縁ガスケット10と絶縁板8とを挟着して、封口板4
に固定される。貫通軸13が封口板4にショートしない
ように、貫通軸13と封口板4の貫通孔との間には、絶
縁板8に一体成形している筒状の絶縁部8Aを挿入して
いる。
The electrode terminal 9 is connected to the sealing body insulating tab 5 via a penetrating shaft 13 penetrating the sealing plate 4. In order to connect the electrode terminal 9 to the sealing member insulating tab 5,
Numeral 3 is inserted into a through-hole opened in the sealing body insulating tab 5, and the lower end edge thereof is caulked to connect the electrode terminal 9 to the sealing body insulating tab 5. The electrode terminal 9 and the sealing body insulating tab 5
An insulating gasket 10 and an insulating plate 8 are sandwiched between the sealing plate 4 and the insulating plate 8.
Fixed to In order to prevent the penetration shaft 13 from short-circuiting to the sealing plate 4, a cylindrical insulating portion 8A integrally formed with the insulating plate 8 is inserted between the penetration shaft 13 and the through hole of the sealing plate 4.

【0024】スペーサー7は、ポリエチレン樹脂、ナイ
ロン樹脂、ポリプロピレン樹脂等のプラスチック、シリ
カやアルミナ等を含む無機質粉体を成形して焼結したも
ので製作される。このスペーサー7は、図9の斜視図に
示すように、上方と両側面に開口して接続開口7Aを設
けている。接続開口7Aは、スペーサー7を電極体2と
封口板4で挟んだ状態で、電極タブ3を、封口体タブ1
2と封口体絶縁タブ5とに連結するために、これらを電
気接続する接続具を挿入するための開口部である。さら
に、スペーサー7は、封口板4と電極体2との間に挟ま
れた状態で、薄く成形した底面を封口板4と平行に保持
できるように、上方に突出して、封口板4に局部的に接
触する支持凸部7Bを有する。この支持凸部7Bは、ス
ペーサー7の両端と中間に設けられており、支持凸部7
Bの間に接続開口7Aを設けている。
The spacer 7 is manufactured by molding and sintering a plastic such as polyethylene resin, nylon resin or polypropylene resin, or an inorganic powder containing silica or alumina. As shown in the perspective view of FIG. 9, the spacer 7 has a connection opening 7A which is open on the upper side and on both side surfaces. The connection opening 7A connects the electrode tab 3 with the sealing body tab 1 while the spacer 7 is sandwiched between the electrode body 2 and the sealing plate 4.
This is an opening for inserting a connector for electrically connecting the cover 2 and the cover insulating tab 5 to connect them. Further, the spacer 7 projects upward so that the thinly formed bottom surface can be held in parallel with the sealing plate 4 while being sandwiched between the sealing plate 4 and the electrode body 2, and is locally attached to the sealing plate 4. Has a supporting convex portion 7B that comes into contact with. The supporting projections 7B are provided at both ends and in the middle of the spacer 7, and the supporting projections 7B are provided.
A connection opening 7A is provided between B.

【0025】さらにまた、スペーサー7は、電極体2に
広い面積で接触できるように、底面には、電極体2の上
面に接触して、電極体2を外装缶1内の定位置に保持す
る平面状の電極押圧プレート7Cを設けている。そし
て、この電極押圧プレート7Cの外形は、外装缶1の内
形にほぼ等しく、その内側には、電極タブ3を貫通させ
る接続スリット14を開口している。
Furthermore, the spacer 7 is in contact with the upper surface of the electrode body 2 on the bottom surface to hold the electrode body 2 in a fixed position in the outer can 1 so that the spacer 7 can contact the electrode body 2 with a large area. A flat electrode pressing plate 7C is provided. The outer shape of the electrode pressing plate 7C is substantially equal to the inner shape of the outer can 1, and a connection slit 14 through which the electrode tab 3 penetrates is opened.

【0026】図8に示すスリム電池は、下記の工程で製
造される。 封口体タブ12と封口体絶縁タブ5を固定している
封口板4を用意する。 電極体2の上にスペーサー7を載せる。このとき、
電極体2から上方に突出する二つの電極タブ3を、スペ
ーサー7の接続スリット14から接続開口7Aに突出さ
せる。 スペーサー7の上に封口板4を載せる。 封口板4の封口体タブ12と封口体絶縁タブ5を、
電極体2の電極タブ3に接続する。封口体タブ12およ
び封口体絶縁タブ5と電極タブ3は、両側に開口される
接続開口7Aから挿入される接続具、たとえば、スポッ
ト溶接するための電極で挟着され、大電流を流して溶着
される。この状態で、電極体2とスペーサー7と封口板
4は一体に結合される。 封口板4に連結されたスペーサー7と電極体2を、
外装缶1に挿入する。電極体2に連結された封口板4
は、外装缶1の開口部に嵌入される。封口板4の外周
と、外装缶1の内面との境界にレーザーを照射して、封
口板4を外装缶1に気密に溶着する。
The slim battery shown in FIG. 8 is manufactured by the following steps. The sealing plate 4 fixing the sealing body tab 12 and the sealing body insulating tab 5 is prepared. The spacer 7 is placed on the electrode body 2. At this time,
Two electrode tabs 3 projecting upward from the electrode body 2 are projected from the connection slits 14 of the spacer 7 to the connection openings 7A. The sealing plate 4 is placed on the spacer 7. The sealing body tab 12 and the sealing body insulating tab 5 of the sealing plate 4 are
It is connected to the electrode tab 3 of the electrode body 2. The sealing body tab 12, the sealing body insulating tab 5, and the electrode tab 3 are sandwiched by connecting tools inserted through the connection openings 7 </ b> A opened on both sides, for example, electrodes for spot welding, and are welded by flowing a large current. Is done. In this state, the electrode body 2, the spacer 7, and the sealing plate 4 are integrally joined. The spacer 7 and the electrode body 2 connected to the sealing plate 4 are
Insert into the outer can 1. Sealing plate 4 connected to electrode body 2
Is fitted into the opening of the outer can 1. The boundary between the outer periphery of the sealing plate 4 and the inner surface of the outer can 1 is irradiated with laser so that the sealing plate 4 is hermetically welded to the outer can 1.

【0027】以上のスリム電池は、電極体2の電極タブ
3を、直接に封口板4の封口体タブ12と封口体絶縁タ
ブ5とに連結している。さらに、図10に示すように、
電極体2の最外周を外装缶1に電気的に接続するスリム
電池は、下記の工程で製造する。 封口体絶縁タブ5を固定している封口板4を用意す
る。 電極体2の上にスペーサー7を載せる。このとき、
電極体2から突出する一つの電極タブ3を、スペーサー
7の接続スリット14から接続開口7Aに突出させる。 接続スリット14から突出する電極タブ3が封口体
絶縁タブ5に当接するように、スペーサー7の上に封口
板4を載せる。 接続スリット14から接続開口7Aに突出している
電極体2の電極タブ3を、封口板4の封口体絶縁タブ5
に接続する。封口体絶縁タブ5と電極タブ3は、スペー
サー7の両側に開口される接続開口7Aから、接続具で
あるスポット溶接用の電極を挿入して連結される。スポ
ット溶接用の電極は、電極タブ3と封口体絶縁タブ5と
を挟着し、大電流を流して溶着する。この状態で、電極
体2とスペーサー7と封口板4は一体に結合される。 封口板4に連結されたスペーサー7と電極体2を、
外装缶1に挿入する。電極体2に連結された封口板4
は、外装缶1の開口部に嵌入される。封口板4の外周
と、外装缶1の内面との境界にレーザーを照射して、封
口板4を外装缶1に気密に溶着する。
In the slim battery described above, the electrode tab 3 of the electrode body 2 is directly connected to the sealing tab 12 and the sealing insulating tab 5 of the sealing plate 4. Further, as shown in FIG.
A slim battery in which the outermost periphery of the electrode body 2 is electrically connected to the outer can 1 is manufactured by the following steps. A sealing plate 4 to which a sealing body insulating tab 5 is fixed is prepared. The spacer 7 is placed on the electrode body 2. At this time,
One electrode tab 3 projecting from the electrode body 2 is projected from the connection slit 14 of the spacer 7 to the connection opening 7A. The sealing plate 4 is placed on the spacer 7 so that the electrode tab 3 protruding from the connection slit 14 contacts the sealing member insulating tab 5. The electrode tab 3 of the electrode body 2 protruding from the connection slit 14 to the connection opening 7A is connected to the sealing body insulating tab 5 of the sealing plate 4.
Connect to The sealing member insulating tab 5 and the electrode tab 3 are connected by inserting a spot welding electrode, which is a connector, from a connection opening 7A opened on both sides of the spacer 7. The electrode for spot welding sandwiches the electrode tab 3 and the sealing member insulating tab 5 and welds by applying a large current. In this state, the electrode body 2, the spacer 7, and the sealing plate 4 are integrally joined. The spacer 7 and the electrode body 2 connected to the sealing plate 4 are
Insert into the outer can 1. Sealing plate 4 connected to electrode body 2
Is fitted into the opening of the outer can 1. The boundary between the outer periphery of the sealing plate 4 and the inner surface of the outer can 1 is irradiated with laser so that the sealing plate 4 is hermetically welded to the outer can 1.

【0028】[0028]

【発明の効果】本発明のスリム電池は、電極体と封口板
とでスペーサーを挟着する状態で、封口体絶縁タブを電
極体に接続できることに加えて、スペーサーで電極体を
無理なく外装缶に押し込んで挿入できる特長がある。そ
れは、本発明のスリム電池が、封口板と電極体との間
に、独特の構造のスペーサーを挟着し、このスペーサー
を介して電極体を外装缶に押し込むことができるからで
ある。電極体と封口板とに挟着されるスペーサーは、接
続開口を両側と上方に開口して、底面に平面状の電極押
圧プレートを有する。電極押圧プレートは、電極体と広
い面積で接触し、電極体を無理なく外装缶に挿入する。
電極押圧プレートは、平面形状から変形すると、実質的
に電極体と広い面積で面接触した状態で、電極体を外装
缶に押し込みできなくなる。本発明のスリム電池のスペ
ーサーは、電極押圧プレートを平面状に保持するため
に、スペーサーの両端とその中間に支持凸部を設け、こ
の支持凸部の間を接続開口としている。この構造のスペ
ーサーは、電極押圧プレートを薄くして、いいかえる
と、接続開口を大きくして、電極押圧プレートの変形を
確実に阻止できる。このため、電極押圧プレートは平面
状に保持されて、電極体の上面に広い面積で面接触し
て、これをスムーズに無理なく外装缶に押し込みでき
る。
According to the slim battery of the present invention, in addition to the fact that the sealing body insulating tab can be connected to the electrode body in a state where the spacer is sandwiched between the electrode body and the sealing plate, the outer body can be easily formed with the spacer. It has the feature that it can be pushed into and inserted. This is because the slim battery of the present invention can hold a spacer having a unique structure between the sealing plate and the electrode body, and push the electrode body into the outer can via the spacer. The spacer sandwiched between the electrode body and the sealing plate has connection openings opened on both sides and upwards, and has a flat electrode pressing plate on the bottom surface. The electrode pressing plate comes into contact with the electrode body over a large area, and inserts the electrode body into the outer can without difficulty.
When the electrode pressing plate is deformed from a planar shape, it becomes impossible to push the electrode body into the outer can in a state where the electrode body is in substantial surface contact with the electrode body. In the spacer of the slim battery of the present invention, in order to hold the electrode pressing plate in a planar shape, a support projection is provided between both ends of the spacer and an intermediate portion thereof, and a connection opening is provided between the support projections. In the spacer having this structure, the thickness of the electrode pressing plate is reduced, in other words, the connection opening is enlarged, so that the deformation of the electrode pressing plate can be reliably prevented. For this reason, the electrode pressing plate is held in a planar shape, comes into surface contact with the upper surface of the electrode body over a wide area, and can be smoothly and effortlessly pressed into the outer can.

【0029】さらにこの構造のスペーサーを備える本発
明のスリム電池は、独特の構造の電極押圧プレートと支
持凸部でもって、電極体とスペーサーとの接触面積を大
きくして、しかも接続開口を大きくでき、封口体絶縁タ
ブを能率よく電極体に電気接続できる特長も実現され
る。このため、本発明のスリム電池は、能率よく多量生
産でき、さらに、電極体を外装缶に無理なく挿入し、と
くに、外装缶に高密度な電極体をスムーズに挿入して、
電極体の挿入過程における電池性能の低下を極減できる
特長がある。
Further, the slim battery of the present invention provided with the spacer of this structure can increase the contact area between the electrode body and the spacer and the connection opening by using the electrode pressing plate and the support protrusion having a unique structure. In addition, a feature that the sealing member insulating tab can be efficiently electrically connected to the electrode body is also realized. For this reason, the slim battery of the present invention can be efficiently mass-produced, and furthermore, the electrode body is easily inserted into the outer can, particularly, the high-density electrode body is smoothly inserted into the outer can.
There is a feature that deterioration in battery performance during the process of inserting the electrode body can be minimized.

【図面の簡単な説明】[Brief description of the drawings]

【図1】従来の電池を示す一部断面正面図FIG. 1 is a partial cross-sectional front view showing a conventional battery.

【図2】図1に示す電池に内蔵されるスペーサーの斜視
FIG. 2 is a perspective view of a spacer incorporated in the battery shown in FIG.

【図3】図1に示す電池の封口板の断面図FIG. 3 is a sectional view of a sealing plate of the battery shown in FIG. 1;

【図4】図1に示す電池の製造工程を示す断面図FIG. 4 is a sectional view showing a manufacturing process of the battery shown in FIG. 1;

【図5】本発明者が先に開発した電池に内蔵するスペー
サーの斜視図
FIG. 5 is a perspective view of a spacer built into the battery developed earlier by the present inventors.

【図6】図5に示すスペーサーを内蔵する電池の製造工
程を示す断面図
FIG. 6 is a sectional view showing a manufacturing process of the battery incorporating the spacer shown in FIG. 5;

【図7】図5に示すスペーサーを内蔵する他の電池の製
造工程を示す断面図
FIG. 7 is a sectional view showing a manufacturing process of another battery incorporating the spacer shown in FIG. 5;

【図8】本発明の実施例のスリム電池の断面図FIG. 8 is a cross-sectional view of a slim battery according to an embodiment of the present invention.

【図9】図8に示す電池に内蔵されるスペーサーを下か
ら見た斜視図
FIG. 9 is a bottom perspective view of a spacer built in the battery shown in FIG. 8;

【図10】本発明の他の実施例のスリム電池の断面図FIG. 10 is a cross-sectional view of a slim battery according to another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1…外装缶 2…電極体 3…電極タブ 4…封口板 5…封口体絶縁タブ 5A…溶着片 6…連結タブ 6A…折曲部 7…スペーサー 7A…接続開口
7B…支持凸部 7C…電極押圧プレート 8…絶縁板 8A…絶縁部 9…電極端子 10…絶縁ガスケット 11…支持梁 12…封口体タブ 13…貫通軸 14…接続スリット
DESCRIPTION OF SYMBOLS 1 ... Outer can 2 ... Electrode body 3 ... Electrode tab 4 ... Sealing plate 5 ... Sealing body insulating tab 5A ... Welding piece 6 ... Connection tab 6A ... Bending part 7 ... Spacer 7A ... Connection opening
7B: Supporting convex part 7C: Electrode pressing plate 8: Insulating plate 8A: Insulating part 9: Electrode terminal 10: Insulating gasket 11: Support beam 12: Sealing tab 13: Through shaft 14: Connection slit

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 厚さよりも幅の広い断面形状の外装缶
(1)と、この外装缶(1)に挿入される電極体(2)と、外装
缶(1)の開口部に溶着されて開口部を気密に閉塞してい
る封口板(4)と、封口板(4)に絶縁して固定されている電
極端子(9)と、この電極端子(9)に接続されて封口板(4)
の内面に突出して配設されると共に、電極体(2)の電極
タブ(3)に接続されている封口体絶縁タブ(5)と、封口板
(4)と電極体(2)との間に配設されて、電極体(2)の位置
ずれを阻止するスペーサー(7)とを備えるスリム電池に
おいて、スペーサー(7)が下記の全ての構成を有するこ
とを特徴とするスリム電池。 (a) スペーサー(7)は、上方と両側面に開口して、
電極体(2)の電極タブ(3)を封口体絶縁タブ(5)に電気接
続する接続具を挿入するための接続開口(7A)を設けてい
る。 (b) スペーサー(7)は、上方に突出して、封口板(4)
に局部的に接触する支持凸部(7B)を有する。 (c) 支持凸部(7B)は、スペーサー(7)の両端と中間
に設けられており、支持凸部(7B)の間に接続開口(7A)を
設けている。 (d) スペーサー(7)の底面は、電極体(2)の上面に接
触して、電極体(2)を定位置に配設する平面状の電極押
圧プレート(7C)を有する。 (e) 電極押圧プレート(7C)の外形は、外装缶(1)の
内形にほぼ等しく、内側には、電極タブ(3)を貫通させ
る接続スリット(14)を開口している。
1. An outer can having a cross-sectional shape wider than its thickness.
(1), an electrode body (2) inserted into the outer can (1), and a sealing plate (4) welded to the opening of the outer can (1) and hermetically closing the opening, An electrode terminal (9) insulated and fixed to the sealing plate (4), and the sealing plate (4) connected to the electrode terminal (9).
A sealing body insulating tab (5), which is provided so as to protrude from the inner surface of the electrode body and is connected to the electrode tab (3) of the electrode body (2);
(4) and a spacer (7) disposed between the electrode body (2) and preventing displacement of the electrode body (2), wherein the spacer (7) has all of the following configurations: A slim battery comprising: (A) The spacer (7) is open on the upper side and both sides,
A connection opening (7A) for inserting a connector for electrically connecting the electrode tab (3) of the electrode body (2) to the sealing body insulating tab (5) is provided. (B) The spacer (7) protrudes upward and the sealing plate (4)
And a supporting projection (7B) that comes into contact with the support. (C) The support protrusion (7B) is provided between both ends and the middle of the spacer (7), and the connection opening (7A) is provided between the support protrusions (7B). (D) The bottom surface of the spacer (7) has a flat electrode pressing plate (7C) in contact with the upper surface of the electrode body (2) to dispose the electrode body (2) in a fixed position. (E) The outer shape of the electrode pressing plate (7C) is substantially equal to the inner shape of the outer can (1), and has a connection slit (14) passing through the electrode tab (3) inside.
JP17585697A 1997-07-01 1997-07-01 Slim battery Pending JPH1125993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17585697A JPH1125993A (en) 1997-07-01 1997-07-01 Slim battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17585697A JPH1125993A (en) 1997-07-01 1997-07-01 Slim battery

Publications (1)

Publication Number Publication Date
JPH1125993A true JPH1125993A (en) 1999-01-29

Family

ID=16003403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17585697A Pending JPH1125993A (en) 1997-07-01 1997-07-01 Slim battery

Country Status (1)

Country Link
JP (1) JPH1125993A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030081939A (en) * 2002-04-15 2003-10-22 삼성에스디아이 주식회사 Secondary battery
JP2004152581A (en) * 2002-10-30 2004-05-27 Matsushita Electric Ind Co Ltd Square lithium-ion secondary battery
WO2006123812A1 (en) * 2005-05-17 2006-11-23 Honda Motor Co., Ltd. Rectangular storage battery
KR100696777B1 (en) 2005-04-08 2007-03-19 삼성에스디아이 주식회사 Lithium ion secondary battery
EP2063474A1 (en) * 2007-11-24 2009-05-27 BYD Company Limited Battery spacer
US7666547B2 (en) 2004-09-29 2010-02-23 Hitachi Maxell, Ltd. Sealed prismatic battery
WO2010130173A1 (en) * 2009-05-13 2010-11-18 Byd Company Limited Battery spacer, protection assembly for electric core and power battery
JP2010282847A (en) * 2009-06-04 2010-12-16 Toyota Motor Corp Sealed secondary battery
JP2011086604A (en) * 2009-10-16 2011-04-28 Sb Limotive Co Ltd Secondary battery
KR101057584B1 (en) 2004-08-30 2011-08-17 삼성에스디아이 주식회사 Lithium-ion Secondary Battery
US20160301041A1 (en) * 2015-04-07 2016-10-13 Samsung Sdi Co., Ltd. Rechargeable battery
EP3319144A1 (en) * 2016-11-02 2018-05-09 Lithium Energy and Power GmbH & Co. KG Energy storage device
JP2018156848A (en) * 2017-03-17 2018-10-04 トヨタ自動車株式会社 Electrode assembly
US10297810B2 (en) 2014-08-14 2019-05-21 Samsung Sdi Co., Ltd. Battery comprising a cap plate having a coupling pin

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030081939A (en) * 2002-04-15 2003-10-22 삼성에스디아이 주식회사 Secondary battery
JP2004152581A (en) * 2002-10-30 2004-05-27 Matsushita Electric Ind Co Ltd Square lithium-ion secondary battery
KR101057584B1 (en) 2004-08-30 2011-08-17 삼성에스디아이 주식회사 Lithium-ion Secondary Battery
US7666547B2 (en) 2004-09-29 2010-02-23 Hitachi Maxell, Ltd. Sealed prismatic battery
KR100696777B1 (en) 2005-04-08 2007-03-19 삼성에스디아이 주식회사 Lithium ion secondary battery
WO2006123812A1 (en) * 2005-05-17 2006-11-23 Honda Motor Co., Ltd. Rectangular storage battery
US7662512B2 (en) 2005-05-17 2010-02-16 Honda Motor Co., Ltd. Rectangular storage battery
JP5097401B2 (en) * 2005-05-17 2012-12-12 本田技研工業株式会社 Square battery
EP2063474A1 (en) * 2007-11-24 2009-05-27 BYD Company Limited Battery spacer
US8057554B2 (en) * 2007-11-24 2011-11-15 Byd Company Limited Battery spacer
WO2010130173A1 (en) * 2009-05-13 2010-11-18 Byd Company Limited Battery spacer, protection assembly for electric core and power battery
US8268479B2 (en) 2009-05-13 2012-09-18 BYD Co., Ltd Battery spacer, protection assembly for electric core, and power battery
JP2012527063A (en) * 2009-05-13 2012-11-01 ビーワイディー カンパニー リミテッド Battery spacer, protection assembly for electrical core, and power battery
JP2010282847A (en) * 2009-06-04 2010-12-16 Toyota Motor Corp Sealed secondary battery
US8927141B2 (en) 2009-10-16 2015-01-06 Samsung Sdi Co., Ltd. Rechargeable battery
JP2011086604A (en) * 2009-10-16 2011-04-28 Sb Limotive Co Ltd Secondary battery
US10396338B2 (en) 2014-08-14 2019-08-27 Samsung Sdi Co., Ltd. Battery
US10411241B2 (en) 2014-08-14 2019-09-10 Samsung Sdi Co., Ltd. Battery including an insulation spacer
US10297810B2 (en) 2014-08-14 2019-05-21 Samsung Sdi Co., Ltd. Battery comprising a cap plate having a coupling pin
US20160301041A1 (en) * 2015-04-07 2016-10-13 Samsung Sdi Co., Ltd. Rechargeable battery
CN106058081A (en) * 2015-04-07 2016-10-26 三星Sdi株式会社 Rechargeable battery and manufacturing method therefor
JP2016201348A (en) * 2015-04-07 2016-12-01 三星エスディアイ株式会社Samsung SDI Co., Ltd. Secondary battery and manufacturing method for secondary battery
US10797273B2 (en) 2015-04-07 2020-10-06 Samsung Sdi Co., Ltd. Rechargeable battery
EP3319144A1 (en) * 2016-11-02 2018-05-09 Lithium Energy and Power GmbH & Co. KG Energy storage device
CN110114900A (en) * 2016-11-02 2019-08-09 罗伯特·博世有限公司 Energy storage device
WO2018082871A1 (en) * 2016-11-02 2018-05-11 Robert Bosch Gmbh Energy storage device
CN110114900B (en) * 2016-11-02 2022-06-17 罗伯特·博世有限公司 Energy storage device
JP2018156848A (en) * 2017-03-17 2018-10-04 トヨタ自動車株式会社 Electrode assembly

Similar Documents

Publication Publication Date Title
JP3561554B2 (en) battery
JP4556428B2 (en) battery
JP3960877B2 (en) Battery manufacturing method
JP4749130B2 (en) Secondary battery and method for forming the same
JPH1125993A (en) Slim battery
JP3696097B2 (en) Pack battery and manufacturing method thereof
JP2003178747A (en) Lithium battery
WO2021153439A1 (en) Power storage device
JP2019109972A (en) Sealed battery, battery pack, manufacturing method for sealed battery, and manufacturing method for battery pack
JP3316338B2 (en) Prismatic battery
US20030118903A1 (en) Closed type battery
US6432578B1 (en) Sealed cell
JP4201301B2 (en) Sealed battery
US4452869A (en) Battery with improved terminal structure
JP2002093387A (en) Battery
JP4146000B2 (en) Connection structure between batteries
JP2002343336A (en) Thermosensitive switch for battery
US6723468B2 (en) Internal connection system for high power electrochemical cell
JP4895721B2 (en) Aluminum electrolytic capacitor
JP4951814B2 (en) Flat type secondary battery and battery module
JP4841076B2 (en) Sealed battery
JP4168592B2 (en) Secondary battery and method for manufacturing secondary battery
JP2001160382A (en) Sealed body of battery
JP4316861B2 (en) Square battery and manufacturing method thereof
JPH11317215A (en) Battery