JPH0334505A - Terminal structure of capacitor - Google Patents
Terminal structure of capacitorInfo
- Publication number
- JPH0334505A JPH0334505A JP1169189A JP16918989A JPH0334505A JP H0334505 A JPH0334505 A JP H0334505A JP 1169189 A JP1169189 A JP 1169189A JP 16918989 A JP16918989 A JP 16918989A JP H0334505 A JPH0334505 A JP H0334505A
- Authority
- JP
- Japan
- Prior art keywords
- lead wire
- terminal
- welding
- laser
- capacitor element
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 28
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 abstract description 49
- 239000011888 foil Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000057 synthetic resin Substances 0.000 abstract description 2
- 229920003002 synthetic resin Polymers 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明はコンデンサにかかり、特にコンデンサの外部
接続用の端子構造の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to capacitors, and particularly to improvements in the terminal structure for external connection of capacitors.
［従来の技術］
通常のコンデンサ、特に比較的大型のコンデンサは、コ
ンデンサ素子を収納した外装ケースの開口部に、外部接
続用の端子が固着された封口板を装着して形成している
。[Prior Art] A typical capacitor, particularly a relatively large capacitor, is formed by attaching a sealing plate to which external connection terminals are fixed to the opening of an exterior case housing a capacitor element.
このようなコンデンサでは、封口板を貫通して封口板の
裏面に突出した端子のリベット部に、コンデンサ素子か
ら導出した帯状のリード線を、その先端部分に形成した
透孔を挿通させて係留し、更にワッシャ等を装着してこ
れらを一体に圧接した端子構造を有している。In such a capacitor, a strip-shaped lead wire led out from a capacitor element is inserted into a through hole formed at its tip and moored to the rivet part of the terminal that penetrates the sealing plate and protrudes from the back side of the sealing plate. , and has a terminal structure in which washers and the like are attached and these are pressed together.
ところが、このようなコンデンサの端子構造では、リー
ド線と外部接続用の端子は、端子のリベット部を介して
圧接による機械的な接続が行われているに過ぎない。こ
のような機械的な接続の場合、各部位間の接触抵抗は避
けられず、そのため損失やインピーダンス値が大きくな
り、また静電容量値も不安定になってしまう。However, in such a terminal structure of a capacitor, the lead wire and the external connection terminal are merely mechanically connected by pressure contact through the rivet portion of the terminal. In the case of such a mechanical connection, contact resistance between each part is unavoidable, which increases loss and impedance value, and also makes capacitance value unstable.
そこで、コンデンサ素子から導出したリード線と端子の
リベット部とをアーク溶接、超音波溶接、レーザ溶接等
により接続する手段が考えられている。Therefore, methods have been considered to connect the lead wire led out from the capacitor element and the rivet portion of the terminal by arc welding, ultrasonic welding, laser welding, or the like.
〔発明が解決しようとする問題点］
しかし、超音波溶接等による端子のリベット部とリード
線との接続では、接触抵抗が低く、電気的接続は良好と
なるが、その接続強度が脆弱であるため、リード線とリ
ベット部とを接続したのち、外装ケースに収納する工程
中あるいは収納した後に、リード線が端子のリベット部
から離脱してしまうことがあった。また接続工程におけ
る超音波溶接の条件設定も煩雑であった。[Problems to be solved by the invention] However, when connecting the rivet part of the terminal and the lead wire by ultrasonic welding etc., the contact resistance is low and the electrical connection is good, but the strength of the connection is weak. Therefore, after connecting the lead wire and the rivet portion, the lead wire may come off from the rivet portion of the terminal during or after being stored in the outer case. Furthermore, setting conditions for ultrasonic welding in the connection process was also complicated.
アーク溶接等の電気的な溶接では、電気的および機械的
な接続状態は良好となるが、溶接部にカーボン等の不純
物が付着してしまう。また、冷間圧接、超音波溶接によ
り接続する場合は、その溶接部にリード線および端子と
は異なる金属からなる溶接用の治具を圧着しているので
、溶接部に異種金属が微量に残存してしまうことがあっ
た。このようにカーボン、異種金属等が溶接部に付着す
ると、特に電解液を使用する電解コンデンサにおいては
、腐食等の原因となり、コンデンサの信頼性が損なわれ
る。あるいは、リード線と端子とを接続した後にカーボ
ン等の不純物を除去する作業が必要になる場合があった
。Electrical welding such as arc welding provides a good electrical and mechanical connection, but impurities such as carbon adhere to the weld. In addition, when connecting by cold pressure welding or ultrasonic welding, a welding jig made of a different metal than the lead wire and terminal is crimped to the welded part, so a small amount of dissimilar metals may remain in the welded part. There were times when I ended up doing this. If carbon, dissimilar metals, etc. adhere to the welded portion in this way, it may cause corrosion, etc., especially in an electrolytic capacitor that uses an electrolytic solution, and the reliability of the capacitor will be impaired. Alternatively, it may be necessary to remove impurities such as carbon after connecting the lead wire and the terminal.
更に、リード線と端子のリベット部とをレーザ溶接する
ことも考えられる。しかし、コンデンサ素子から導出さ
れる帯状のリード線は、通常０．１５ｍｍ程度の厚さの
比較的薄い部材であるため、レーザ溶接での出力の調整
が困難であった。Furthermore, it is also possible to laser weld the lead wire and the rivet portion of the terminal. However, since the strip-shaped lead wire led out from the capacitor element is a relatively thin member with a thickness of usually about 0.15 mm, it has been difficult to adjust the output in laser welding.
−ｉにこのようなリード線とリベット部との溶接におい
て、その溶接強度は、母体であるリード線の引っ張り強
度と同等もしくはそれ以上であることが望ましい。しか
し、例えば充分な溶接強度を求めてレーザ出力を上げた
場合、リード線に穿孔してしまう。逆にリード線に穿孔
しないようレーザ出力を下げた場合、充分な溶接強度を
得ることが困難になり、場合によっては接続不良となる
ことがあった。-i In welding such a lead wire and a rivet part, it is desirable that the welding strength is equal to or higher than the tensile strength of the lead wire that is the base body. However, for example, if the laser output is increased in order to obtain sufficient welding strength, the lead wire will be perforated. On the other hand, if the laser output is lowered so as not to perforate the lead wire, it becomes difficult to obtain sufficient welding strength, which may lead to poor connection in some cases.
この発明の目的は、コンデンサ素子から導出した帯状の
リード線と外部接続用の端子との接続において、その溶
接強度を維持しつつＪ接触抵抗を最小限に抑制する接続
構造の提供にある。An object of the present invention is to provide a connection structure that minimizes J contact resistance while maintaining welding strength in connection between a strip-shaped lead wire derived from a capacitor element and an external connection terminal.
この発明は、コンデンサの端子構造において、コンデン
サ素子から導出した帯状のリード線の先端部を折り返し
、この折り返し部分を、封口板を貫通した外部接続用の
端子に載置して、レーザ溶接したことを特徴としている
。This invention relates to the terminal structure of a capacitor, in which the tip of a strip-shaped lead wire led out from a capacitor element is folded back, and this folded part is placed on a terminal for external connection passing through a sealing plate, and then laser welded. It is characterized by
図面に示したように、この発明では、コンデンサ素子か
ら導出した帯状のリード線ｌは、その先端部において折
り返されて、端子３の端部、すなわちリベット部４の端
面にレーザ溶接されている。As shown in the drawings, in the present invention, the strip-shaped lead wire l led out from the capacitor element is folded back at its tip and laser welded to the end of the terminal 3, that is, the end face of the rivet portion 4.
レーザ１１の照射による溶接では、リード線ｌに溶接用
の治具等を接触させない状態で、また短い時間で溶接す
ることができるので、溶接による熱的、電気的な影響を
他の部位、例えばコンデンサ素子等に及ぼさず、良好な
接続状態を実現することができる。Welding by irradiation with the laser 11 allows welding to be performed in a short period of time without bringing any welding jig or the like into contact with the lead wire l, so that the thermal and electrical effects of welding can be absorbed by other parts, such as A good connection state can be achieved without affecting the capacitor element or the like.
また、リード線ｌの先端部は折り返されて溶接されるた
め、所望の溶接強度を得るために充分なレーザ出力で溶
接した場合でも、リード線ｌに穿孔させることがなくな
る。また、レーザ溶接による溶接点７とリード線ｌとの
接触面積、すなわちリード線１がリベット部４に固着さ
れる部分の面積が広くなり、強固な接続状態を得ること
ができるようになる。Furthermore, since the tip of the lead wire 1 is folded back and welded, the lead wire 1 is not perforated even when welding is performed with sufficient laser power to obtain the desired welding strength. Further, the contact area between the welding point 7 and the lead wire 1 by laser welding, that is, the area of the portion where the lead wire 1 is fixed to the rivet portion 4, becomes larger, and a strong connection can be obtained.
以下この発明の実施例を図面にしたがい説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は、この発明の実施例によるタブと端子との接続
状態を示した斜視図、第２図はこの実施例による端子構
造を示す部分断面図である。また第３図は、この発明の
実施例による接続構造と別の接続構造との溶接強度の比
較を表すグラフである。FIG. 1 is a perspective view showing a connection state between a tab and a terminal according to an embodiment of the present invention, and FIG. 2 is a partial sectional view showing a terminal structure according to this embodiment. Further, FIG. 3 is a graph showing a comparison of welding strength between the connection structure according to the embodiment of the present invention and another connection structure.
図示しないコンデンサ素子は電極箔を巻回して形成して
いる。この電極箔には、アルミニウム等からなる帯状の
リード線１が、公知の手段で電気的に接続されている。A capacitor element (not shown) is formed by winding electrode foil. A strip-shaped lead wire 1 made of aluminum or the like is electrically connected to this electrode foil by known means.
そしてリード線１は、コンデンサ素子の一方の端面から
外部に導出される。The lead wire 1 is led out from one end surface of the capacitor element.
この実施例では、厚さ０．１５ｍｍ、幅５閣で引っ張り
強度（いわゆる母体強度） ５．４０ｋｇの帯状リード
線を使用した。In this example, a belt-shaped lead wire having a thickness of 0.15 mm, a width of 5 mm, and a tensile strength (so-called base strength) of 5.40 kg was used.
封口板８は、第２図に示すように、耐熱性の合成樹脂、
例えばフェノール樹脂等からなる硬質板ｌＯと弾性ゴム
等の弾性体９とを張り合わせている。As shown in FIG. 2, the sealing plate 8 is made of heat-resistant synthetic resin,
For example, a hard plate lO made of phenol resin or the like and an elastic body 9 made of elastic rubber or the like are pasted together.
そして中央部付近には、封口板８を貫通するリベット部
４と、封口板８の一方の表面に配置された接続部５とか
らなる外部接続用の端子３が固着されている。An external connection terminal 3 consisting of a rivet portion 4 penetrating the sealing plate 8 and a connecting portion 5 disposed on one surface of the sealing plate 8 is fixed near the center.
封口板８の他方の端面には、端子３のリベット部４が突
出するとともに、リベット部４の端面には平坦部６が形
成されている。このリベット部４の平坦部６はｔ例えば
圧接加工、圧延加工等により形成する。The rivet portion 4 of the terminal 3 protrudes from the other end surface of the sealing plate 8, and a flat portion 6 is formed on the end surface of the rivet portion 4. The flat portion 6 of the rivet portion 4 is formed by, for example, pressure welding, rolling, or the like.
リード線１の先端部は、一定の距離で折り返され、この
折返し部２が端子３のリベット部４の平坦部６に載置さ
れる。そして、このリード線１と端子３との当接部分に
おいて、リード線ｌの長手方向に対して直交する方向に
レーザ１１を照射して４点の溶接点７を設ける。The tip end of the lead wire 1 is folded back at a certain distance, and this folded part 2 is placed on the flat part 6 of the rivet part 4 of the terminal 3. Then, at the contact portion between the lead wire 1 and the terminal 3, four welding points 7 are provided by irradiating the laser 11 in a direction perpendicular to the longitudinal direction of the lead wire 1.
この溶接点７は、イツトリウム・アルミニウム・ガーネ
ッｌ−（ＹＡＧ）レーザを、出力エネルギー４０Ｊ、パ
ルス幅１０ｍ５．焦点ズラシ＋３．０Ｍの条件で照射し
て形威し、４点の溶接点７をほぼ直線上に１ｍｍ間隔で
配置した。この実施例によるり一ド線１と端子３との剥
がし強度は、平均で６．５０ｋｇであった。At this welding point 7, a yttrium aluminum garnet (YAG) laser was used with an output energy of 40 J and a pulse width of 10 m5. It was irradiated and shaped under the condition of focus shift +3.0M, and four welding points 7 were arranged approximately on a straight line at 1 mm intervals. The peel strength between the lead wire 1 and the terminal 3 in this example was 6.50 kg on average.
次に、この発明の実施例による端子構造（Ａ）と、リー
ド線の先端を折り返さずにリベット部に載置し、レーザ
溶接して４点の溶接点を設けた端子構造（Ｂ）の溶接強
度を比較した。その結果を第３図に示す。Next, we will weld the terminal structure (A) according to the embodiment of the present invention and the terminal structure (B) in which the tip of the lead wire is placed on the rivet portion without being folded back and laser welded to provide four welding points. The strength was compared. The results are shown in FIG.
第３図６と示すように、（Ｂ）はレーザ出力４０Ｊを越
える出力で穿孔されてしまい、リード線が端子から剥離
してしまった。また、（Ａ）においても、出力４８Ｊを
越える出力では穿孔してしまう。As shown in FIG. 3 and 6, (B) was perforated with a laser output exceeding 40 J, and the lead wire peeled off from the terminal. Also in (A), a hole will occur if the output exceeds 48J.
更に、（Ｂ）においては２４Ｊ未満、（Ａ）においては
２７Ｊ未′尚の出力で溶接不可能となった。Furthermore, welding became impossible at an output of less than 24 J in (B) and less than 27 J in (A).
前述のように、溶接強度はリード線の母体強度（５，４
０ｋｇ）と同等もしくはそれ以上あることが望ましい。As mentioned above, the welding strength is the base strength of the lead wire (5, 4
It is desirable that the weight be equal to or greater than 0kg).
第３図に示したグラフにおいて（Ａ）と（Ｂ）と比較す
ると、（Ｂ）ではこの母体強度と同等の溶接強度を得る
ことは、母体であるリード線が穿孔してしまうため困難
であるのに対し、（Ａ）ではほぼ同程度の溶接強度を得
ることが可能となることが理解される。Comparing (A) and (B) in the graph shown in Figure 3, it is difficult to obtain welding strength equivalent to this base material strength in (B) because the lead wire, which is the base material, is perforated. On the other hand, it is understood that it is possible to obtain approximately the same welding strength in (A).
なお、前記の実施例において、レーザ照射による溶接点
７は、直線上に配置した４点としたが、この溶接点７は
、配置されるリード線ｌの幅寸法、厚さ寸法に応じて複
数段ければよい。In the above embodiment, the welding points 7 by laser irradiation were set to four points arranged on a straight line, but the welding points 7 were set to a plurality of points depending on the width and thickness dimensions of the lead wire l to be arranged. All you need is a step.
（発明の効果）
以上のようにこの発明は、コンデンサの端子構造におい
て、コンデンサ素子から導出した帯状のリード線の先端
部を折り返し、この折り返し部分を、封口板を貫通した
外部接続用の端子に載置して、レーザ溶接したことを特
徴としているので、所望の溶接強度を得るために充分な
レーザ出力で溶接した場合でも、リード線に穿孔させる
ことがなくなる。また、レーザ溶接による溶接点とリー
ド線との接触面積、すなわちリード線がリベット部に固
着される部分の面積が広くなり、強固な接続状態を得る
ことができるようになる。(Effects of the Invention) As described above, in the terminal structure of a capacitor, the present invention folds back the tip of a strip-shaped lead wire led out from a capacitor element, and connects this folded portion to a terminal for external connection that passes through a sealing plate. Since the lead wire is placed and laser welded, there is no need to perforate the lead wire even when welding is performed with sufficient laser power to obtain the desired welding strength. Further, the contact area between the welding point and the lead wire by laser welding, that is, the area of the portion where the lead wire is fixed to the rivet portion, becomes larger, so that a strong connection can be obtained.
また、リード線と端子とはレーザ照射により溶接される
ので、電気的な接続状態も良好になり、接触抵抗が下が
り、インピーダンス周波数特性が改善される。更に、ア
ーク溶接、冷間圧接等により端子とリード線とを接続し
た端子構造と比較して不純物の発生、付着が見られず、
コンデンサの電気的特性に悪影響を及ぼすことがなく、
信頼性が向上する。Furthermore, since the lead wire and the terminal are welded by laser irradiation, the electrical connection is also good, contact resistance is reduced, and impedance frequency characteristics are improved. Furthermore, compared to a terminal structure in which the terminal and lead wire are connected by arc welding, cold pressure welding, etc., there is no generation or adhesion of impurities.
without adversely affecting the electrical characteristics of the capacitor.
Improved reliability.
なお、レーザ溶接による溶接点をリート線の長手方向に
直交するよう設けた場合、リード線をその長手方向に引
っ張る機械的ストレスは複数の溶接点で係止され、全体
として強固な接続状態を得ることができるようになる。In addition, if the welding points by laser welding are set perpendicular to the longitudinal direction of the lead wire, the mechanical stress that pulls the lead wire in the longitudinal direction is stopped at multiple welding points, resulting in a strong connection as a whole. You will be able to do this.
第を図はこの発明の実施例によるタブと端子との接続状
態を示した斜視図、第２図はこの実施例による端子構造
を示す部分断面図である。第３図は、この発明の実施例
による接続構造と別の接続構造との溶接強度の比較を表
すグラフである。
１・・・リード線、 ２・・・折返し部、３・・・端子
、４・・・リベット部、５・・・接続部、 ６・・・
平坦部、７・・・溶接点、 ８・・・封口板、 ９・
・・弾性体、１０・・・硬質板、
１１・・・レーザ。
特
許
出
願
人
日本ケミコン株式会社
第
図
第
図Figure 1 is a perspective view showing a connection state between a tab and a terminal according to an embodiment of the present invention, and Figure 2 is a partial sectional view showing the terminal structure according to this embodiment. FIG. 3 is a graph showing a comparison of welding strength between the connection structure according to the embodiment of the present invention and another connection structure. DESCRIPTION OF SYMBOLS 1... Lead wire, 2... Turned part, 3... Terminal, 4... Rivet part, 5... Connection part, 6...
Flat part, 7... Welding point, 8... Sealing plate, 9.
...Elastic body, 10...Hard plate, 11...Laser. Patent applicant: Nippon Chemi-Con Co., Ltd.
Claims (1)
端部を折り返し、この折り返し部分を、封口板を貫通し
た外部接続用の端子に載置して、レーザ溶接したことを
特徴とするコンデンサの端子構造。(1) A capacitor terminal characterized in that the tip of a band-shaped lead wire led out from a capacitor element is folded back, and this folded part is placed on an external connection terminal that penetrates a sealing plate and laser welded. structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1169189A JP2879739B2 (en) | 1989-06-30 | 1989-06-30 | Capacitor terminal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1169189A JP2879739B2 (en) | 1989-06-30 | 1989-06-30 | Capacitor terminal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0334505A true JPH0334505A (en) | 1991-02-14 |
| JP2879739B2 JP2879739B2 (en) | 1999-04-05 |
Family
ID=15881880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1169189A Expired - Fee Related JP2879739B2 (en) | 1989-06-30 | 1989-06-30 | Capacitor terminal structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2879739B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003003394A1 (en) * | 2001-06-28 | 2003-01-09 | Epcos Ag | Capacitor |
| WO2006005277A1 (en) * | 2004-07-09 | 2006-01-19 | Epcos Ag | Capacitor and capacitor module |
| DE102004049185A1 (en) * | 2004-07-09 | 2006-01-26 | Epcos Ag | Electrical connector system for capacitor module used in road vehicle, has laser welds connecting disk with terminals to cylindrical pot containing capacitor element |
| CN104240944A (en) * | 2014-09-01 | 2014-12-24 | 慈溪市日益电容器厂 | Capacitor insulated terminal cover |
| WO2019187775A1 (en) * | 2018-03-28 | 2019-10-03 | 三洋電機株式会社 | Battery and method for manufacturing same |
| WO2024150716A1 (en) * | 2023-01-12 | 2024-07-18 | パナソニックエナジー株式会社 | Power storage device |
| EP4411975A4 (en) * | 2021-09-29 | 2025-06-04 | Panasonic Intellectual Property Management Co., Ltd. | ELECTRICITY STORAGE DEVICE AND METHOD FOR MANUFACTURING ELECTRICITY STORAGE DEVICE |
-
1989
- 1989-06-30 JP JP1169189A patent/JP2879739B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003003394A1 (en) * | 2001-06-28 | 2003-01-09 | Epcos Ag | Capacitor |
| US7330347B2 (en) | 2001-06-28 | 2008-02-12 | Kemet Electronics Corporation | Capacitor |
| WO2006005277A1 (en) * | 2004-07-09 | 2006-01-19 | Epcos Ag | Capacitor and capacitor module |
| DE102004049185A1 (en) * | 2004-07-09 | 2006-01-26 | Epcos Ag | Electrical connector system for capacitor module used in road vehicle, has laser welds connecting disk with terminals to cylindrical pot containing capacitor element |
| CN104240944A (en) * | 2014-09-01 | 2014-12-24 | 慈溪市日益电容器厂 | Capacitor insulated terminal cover |
| WO2019187775A1 (en) * | 2018-03-28 | 2019-10-03 | 三洋電機株式会社 | Battery and method for manufacturing same |
| CN111902968A (en) * | 2018-03-28 | 2020-11-06 | 三洋电机株式会社 | Battery and method for manufacturing same |
| JPWO2019187775A1 (en) * | 2018-03-28 | 2021-03-18 | 三洋電機株式会社 | Batteries and their manufacturing methods |
| US20210126289A1 (en) * | 2018-03-28 | 2021-04-29 | Sanyo Electric Co., Ltd. | Battery and method for manufacturing same |
| EP4411975A4 (en) * | 2021-09-29 | 2025-06-04 | Panasonic Intellectual Property Management Co., Ltd. | ELECTRICITY STORAGE DEVICE AND METHOD FOR MANUFACTURING ELECTRICITY STORAGE DEVICE |
| WO2024150716A1 (en) * | 2023-01-12 | 2024-07-18 | パナソニックエナジー株式会社 | Power storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2879739B2 (en) | 1999-04-05 |
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