JPH0312212Y2 - - Google Patents
Info
- Publication number
- JPH0312212Y2 JPH0312212Y2 JP1986013972U JP1397286U JPH0312212Y2 JP H0312212 Y2 JPH0312212 Y2 JP H0312212Y2 JP 1986013972 U JP1986013972 U JP 1986013972U JP 1397286 U JP1397286 U JP 1397286U JP H0312212 Y2 JPH0312212 Y2 JP H0312212Y2
- Authority
- JP
- Japan
- Prior art keywords
- current collector
- plate
- anode
- cathode
- welded
- 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
- 239000011162 core material Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000003466 welding Methods 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、密閉型ニツケル・カドミウム蓄電池
に関し、特に極板と集電体との接続部分の改良に
関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sealed nickel-cadmium storage battery, and particularly relates to an improvement in the connecting portion between the electrode plate and the current collector.
［従来の技術］
密閉形ニツケル・カドミウム蓄電池は、その極
板特性により高率放電が可能であり、極板から集
電体への集電効率を高めるための構造を有してい
る。従来の密閉形ニツケル・カドミウム蓄電池の
構造を第３図を参照して説明する。陰極端子を兼
ねる外装罐１内にはセパレータ２により隔離され
た陽極板３と陰極板４とが渦巻状に巻き取られて
なる渦巻状電極群５が収納されている。陽極板３
と陰極板４は、それぞれ幅方向（渦巻状電極群５
の軸線方向）の一方の端部に、極性により突出方
向を違えて突出する芯材露出部３ａ，４ａを有し
ている。各芯材露出部３ａ，４ａには対応する陽
極集電体６及び陰極集電体７の平板状部分６Ａ及
び７Ａの一方の板面６ａ及び７ａがスポツト溶接
されている。各集電体６，７は耐アルカリ性の金
属のプレス加工打抜き板で一般には鉄板にニツケ
ルメツキを施したものが用いられている。陽極集
電体６は外装罐１の開口部を閉塞する封口蓋８に
溶接され、封口蓋８に取付けられた陽極端子９に
電気的に接続されている。陰極集電体７は外装罐
１の底部に溶接されている。[Prior Art] A sealed nickel-cadmium storage battery is capable of high rate discharge due to its electrode plate characteristics, and has a structure for increasing the efficiency of current collection from the electrode plate to the current collector. The structure of a conventional sealed nickel-cadmium storage battery will be explained with reference to FIG. A spiral electrode group 5 formed by winding an anode plate 3 and a cathode plate 4 separated by a separator 2 into a spiral is housed in an exterior case 1 which also serves as a cathode terminal. Anode plate 3
and the cathode plate 4 in the width direction (the spiral electrode group 5
It has core exposed portions 3a and 4a that protrude in different protruding directions depending on the polarity, at one end in the axial direction). One plate surface 6a and 7a of the flat plate portions 6A and 7A of the corresponding anode current collector 6 and cathode current collector 7 are spot welded to each core exposed portion 3a, 4a. Each of the current collectors 6 and 7 is a press-worked punched plate made of alkali-resistant metal, and is generally a nickel-plated iron plate. The anode current collector 6 is welded to a sealing lid 8 that closes the opening of the exterior can 1, and is electrically connected to an anode terminal 9 attached to the sealing lid 8. The cathode current collector 7 is welded to the bottom of the exterior can 1.
このように構成された密閉形ニツケル・カドミ
ウム蓄電池において、従来の陽極集電体６および
陰極集電体７の平板状部分６Ａ及び７Ａの一方の
板面６ａ，７ａは、平面状で表面が滑かに形成さ
れている。第４図には、陽極集電体６の構成のみ
を示す。 In the sealed nickel-cadmium storage battery constructed as described above, one plate surface 6a, 7a of the conventional flat plate portions 6A and 7A of the anode current collector 6 and cathode current collector 7 is flat and has a smooth surface. It is formed like a crab. In FIG. 4, only the structure of the anode current collector 6 is shown.
［考案が解決しようとする問題点］
以下便宜上陽極集電体６を例にとつて問題点を
説明する。上記のような密閉形ニツケル・カドミ
ウム蓄電池においては、第５図ａおよびｂに示す
ように、陽極集電体６の一方の板面６ａが平面状
で表面が滑かであること、及び陽極集電体６は強
度および電流容量を大きくとるために厚く形成さ
れ、これに対し各極板３の芯材露出部３ａは薄く
形成されていて熱容量に違いがあること等の理由
により、芯材露出部３ａと陽極集電体６の一方の
板面６ａとをスポツト溶接した時、芯材露出部３
ａは十分に溶けても陽極集電体６の一方の板面６
ａが十分に溶けきれず、溶接強度が不十分にな
り、しかも溶接強度にバラツキが生ずる問題点が
あつた。この問題は、陰極集電体７と陰極板４の
芯材露出部４ａとの接続に関しても同様に生じ
る。[Problems to be Solved by the Invention] For convenience, the problems will be explained below using the anode current collector 6 as an example. In the above-described sealed nickel-cadmium storage battery, as shown in FIGS. 5a and 5b, one plate surface 6a of the anode current collector 6 is flat and smooth, and The electric body 6 is formed thickly to increase strength and current capacity, whereas the core exposed portion 3a of each electrode plate 3 is thinly formed and has a difference in heat capacity. When the portion 3a and one plate surface 6a of the anode current collector 6 are spot welded, the exposed core portion 3
Even if a is sufficiently melted, one plate surface 6 of the anode current collector 6
There were problems in that a was not fully melted, resulting in insufficient welding strength and variation in welding strength. This problem similarly occurs regarding the connection between the cathode current collector 7 and the core exposed portion 4a of the cathode plate 4.
本考案の目的は、陽極板及び陰極板のそれぞれ
の芯材露出部と陽極集電体及び陰極集電体との接
続を十分な強度で且つ強度のバラツキを少なくし
行うことができる密閉形ニツケル・カドミウム蓄
電池を提供することにある。 The purpose of the present invention is to provide a closed type nickel that can connect the exposed core material of each anode plate and cathode plate with an anode current collector and a cathode current collector with sufficient strength and with less variation in strength.・Providing cadmium storage batteries.
［問題点を解決するための手段］
本考案を、その実施例を示す第１図および第２
図ａおよびｂを参照して説明すると、本考案の密
閉形ニツケル・カドミウム蓄電池は、渦巻状電極
群５と、陽極集電体６と、陰極集電体７と２枚の
金属メツシユ６ｂとを有する。渦巻状電極群５は
セパレータ２によつて隔離された陽極板３および
陰極板４が渦巻状に巻き取られて構成されてい
る。そして陽極板３及び陰極板４はそれぞれ渦巻
状電極群５の軸線方向の異なる方向に突出する芯
材露出部３ａ，４ａを有している。また陽極集電
体６及び陰極集電体７は渦巻状電極群５の対応す
る芯材露出部３ａ，４ａと全体的に対向する平板
状部分６Ａ，７Ａを有している。２枚の金属メツ
シユ６ｂは、それぞれ陽極集電体６及び陰極集電
体７の平板状部分６Ａ，７Ａの一方の板面６ａ，
７ａにシーム溶接されている。そして陽極板３及
び陰極板４の芯材露出部３ａ，４ａはそれぞれ陽
極集電体６及び陰極集電体７に溶接された金属メ
ツシユ６ｂにスポツト溶接されている。[Means for solving the problems] The present invention is illustrated in FIGS. 1 and 2 showing embodiments thereof.
Referring to Figures a and b, the sealed nickel-cadmium storage battery of the present invention includes a spiral electrode group 5, an anode current collector 6, a cathode current collector 7, and two metal meshes 6b. have The spiral electrode group 5 is constructed by winding an anode plate 3 and a cathode plate 4 separated by a separator 2 into a spiral shape. The anode plate 3 and the cathode plate 4 each have core exposed portions 3a and 4a that protrude in different directions along the axis of the spiral electrode group 5, respectively. Further, the anode current collector 6 and the cathode current collector 7 have flat plate-like portions 6A and 7A that entirely face the corresponding core exposed portions 3a and 4a of the spiral electrode group 5. The two metal meshes 6b are one plate surface 6a of the flat plate portions 6A and 7A of the anode current collector 6 and the cathode current collector 7, respectively.
Seam welded to 7a. The exposed core portions 3a, 4a of the anode plate 3 and cathode plate 4 are spot welded to metal meshes 6b welded to the anode current collector 6 and cathode current collector 7, respectively.
［作用］
陽極集電体６及び陰極集電体７と金属メツシユ
６ｂとは、それぞれ熱容量が違い且つ一方が平面
状になつているために、スポツト溶接では十分な
接合強度を得ることはできないが、シーム溶接を
用いれば両者を交互に強固に溶接することができ
る。また金属メツシユ６ｂと芯材露出部３ａと
は、それぞれの熱容量が近いため、スポツト溶接
でも両者を略均等に溶かして強固に溶接すること
ができる。従つて陽極集電体６及び陰極集電体７
に対して、陽極板３及び陰極板４の芯材露出部３
ａ，４ａを十分な強度でしかも強度のバラツキを
少なして接合することができる。[Function] Since the anode current collector 6, the cathode current collector 7, and the metal mesh 6b have different heat capacities and one of them is planar, it is not possible to obtain sufficient joint strength by spot welding. If seam welding is used, both can be alternately and firmly welded. Furthermore, since the metal mesh 6b and the core exposed portion 3a have similar heat capacities, both can be melted approximately evenly and firmly welded together by spot welding. Therefore, the anode current collector 6 and the cathode current collector 7
In contrast, the core material exposed portion 3 of the anode plate 3 and the cathode plate 4
It is possible to join a and 4a with sufficient strength and with less variation in strength.
［実施例］
以下、本考案の実施例を図面を参照して詳細に
説明する。[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
第１図並び第２図ａ及びｂには、本考案の一実
施例の要部の構造を示してある。第１図及び第２
図は、陽極板３の芯材露出部３ａを集電体６に接
続する場合の例を示している。陽極集電体６は耐
アルカリ性に優れた材料よりなり、陽極集電体６
の一方の板面６ａに耐アルカリ性に優れた材料よ
りなる金属メツシユ６ｂがシーム溶接されてい
る。このように金属メツシユ６ｂと陽極集電体６
との溶接をシーム溶接で行うと、両者の熱容量が
違い且つ一方が平面状であつても、両者を強固に
溶接することができる。この金属メツシユ６ｂが
対応する極板３の芯材露出部３ａの渦巻状の端縁
部に押圧されて該芯材露出部３ａの複数個所にス
ポツト溶接されている。このように金属メツシユ
６ｂと芯材露出部３ａとの溶接をスポツト溶接で
行うと、それぞれの熱容量が略同等になるかまた
は近いために、両者を略均等に溶かして強固に溶
接することができる。 FIG. 1 and FIGS. 2a and 2b show the structure of the main part of an embodiment of the present invention. Figures 1 and 2
The figure shows an example in which the core exposed portion 3a of the anode plate 3 is connected to the current collector 6. The anode current collector 6 is made of a material with excellent alkali resistance.
A metal mesh 6b made of a material with excellent alkali resistance is seam welded to one plate surface 6a. In this way, the metal mesh 6b and the anode current collector 6
If welding is performed by seam welding, even if the heat capacities of the two are different and one of them is planar, the two can be firmly welded. The metal mesh 6b is pressed against the spiral edge of the exposed core portion 3a of the corresponding electrode plate 3 and spot welded to a plurality of locations on the exposed core portion 3a. When the metal mesh 6b and the core exposed portion 3a are welded by spot welding in this way, the heat capacities of the two are approximately equal or close to each other, so that both can be melted approximately equally and welded firmly. .
第２図ａ，ｂにおいて、陽極集電体６の一方の
板面６ａと芯材露出部３ａとが電気的に且つ機械
的に接続されている接続部を符号Ａで示してあ
る。なお陰極集電体７と陰極板４の芯材露出部４
ａとの接合も、上記と同様にして行われる。 In FIGS. 2a and 2b, reference numeral A indicates a connecting portion where one plate surface 6a of the anode current collector 6 and the core exposed portion 3a are electrically and mechanically connected. Note that the exposed core material portion 4 of the cathode current collector 7 and the cathode plate 4
The bonding with a is also performed in the same manner as above.
金属メツシユとして約40メツシユのニツケルメ
ツシユを用いて容量1200mAh、KR−SC形の電
池に本考案を適用した場合、溶接強度については
従来のものの約1.5倍の強度を示し、強度のバラ
ツキは従来のものの約2/3に減少した。 When this invention is applied to a KR-SC type battery with a capacity of 1200 mAh using a nickel mesh with approximately 40 meshes as the metal mesh, the welding strength is approximately 1.5 times that of the conventional one, and the variation in strength is less than that of the conventional one. It decreased by about 2/3.
［考案の効果］
以上のように、本考案によれば、陽極集電体及
び陰極集電体と金属メツシユとは、それぞれ熱容
量が違い且つ一方が平面状になつているために、
スポツト溶接では十分な接合強度を得ることはで
きないが、シーム溶接を用いれば両者を相互に強
固に溶接することができる。また金属メツシユと
芯材露出部とは、それぞれの熱容量が近いため、
スポツト溶接でも両者を略均等に溶かして強固に
溶接することができる。従つて陽極集電体及び陰
極集電体に対して、陽極板及び陰極板の芯材露出
部を十分な強度でしかも強度のバラツキを少なく
して接合することができる利点がある。[Effects of the invention] As described above, according to the invention, since the anode current collector, the cathode current collector, and the metal mesh each have different heat capacities and one of them is planar,
Spot welding cannot provide sufficient joint strength, but seam welding allows the two to be strongly welded together. In addition, since the metal mesh and the exposed core material have similar heat capacities,
Even with spot welding, both can be melted approximately evenly and welded firmly. Therefore, there is an advantage that the exposed core material portions of the anode plate and the cathode plate can be bonded to the anode current collector and the cathode current collector with sufficient strength and with less variation in strength.
第１図は本考案の一実施例を示す陽極集電体の
縦断面図、第２図ａおよびｂはそれぞれ本考案の
一実施例において陽極板の芯材露出部と陽極集電
体との溶接部分を示す断面図、第３図は本考案が
適用される密閉形ニツケル・カドミウム蓄電池を
示す縦断面図、第４図は従来のニツケル・カドミ
ウム蓄電池の陽極集電体を示す斜視図、第５図ａ
およびｂはそれぞれ従来のニツケル・カドミウム
蓄電池の極板と集電体との溶接部分を示す断面図
である。
１……外装罐、２……セパレータ、３……陽極
板、４……陰極板、３ａ，４ａ……極板の芯材露
出部、５……渦巻状電極群、６……陽極集電体、
７……陰極集電体、６Ａ，７Ａ……平板状部分、
６ａ，７ａ……板面、６ｂ……金属メツシユ、８
……封口蓋、９……陽極端子。
FIG. 1 is a longitudinal cross-sectional view of an anode current collector showing an embodiment of the present invention, and FIGS. 3 is a longitudinal sectional view showing a sealed nickel-cadmium storage battery to which the present invention is applied; FIG. 4 is a perspective view showing the anode current collector of a conventional nickel-cadmium storage battery; Figure 5a
and b are sectional views showing the welded portions of the electrode plates and current collectors of a conventional nickel-cadmium storage battery, respectively. DESCRIPTION OF SYMBOLS 1... Exterior can, 2... Separator, 3... Anode plate, 4... Cathode plate, 3a, 4a... Exposed core material part of electrode plate, 5... Spiral electrode group, 6... Anode current collector body,
7... Cathode current collector, 6A, 7A... Flat plate portion,
6a, 7a...Plate surface, 6b...Metal mesh, 8
...Sealing lid, 9...Anode terminal.
Claims (1)
体７と２枚の金属メツシユ６ｂとを有し、 前記渦巻状電極群５はセパレータ２によつて隔
離された陽極板３および陰極板４が渦巻状に巻き
取られてなり、 前記陽極板３及び陰極板４はそれぞれ前記渦巻
状電極群５の軸線方向の異なる方向に突出する芯
材露出部３ａ，４ａを有しており、 前記陽極集電体６及び陰極集電体７は前記渦巻
状電極群５の対応する前記芯材露出部３ａ，４ａ
と全体的に対向する平板状部分６Ａ，７Ａを有し
ており、 前記２枚の金属メツシユ６ｂはそれぞれ前記陽
極集電体６及び陰極集電体７の前記平板状部分６
Ａ，７Ａの一方の板面６ａ，７ａにシーム溶接さ
れており、 前記陽極板３及び陰極板４の前記芯材露出部３
ａ，４ａはそれぞれ前記陽極集電体６及び陰極集
電体７に溶接された前記金属メツシユ６ｂにスポ
ツト溶接されていることを特徴とする密閉形ニツ
ケル・カドミウム蓄電池。[Claims for Utility Model Registration] It has a spiral electrode group 5, an anode current collector 6, a cathode current collector 7, and two metal meshes 6b, and the spiral electrode group 5 is connected to the separator 2. An anode plate 3 and a cathode plate 4 separated by a coil are wound up in a spiral shape, and each of the anode plate 3 and the cathode plate 4 has a core exposed portion protruding in different directions in the axial direction of the spiral electrode group 5. 3a, 4a, and the anode current collector 6 and cathode current collector 7 have the corresponding core exposed portions 3a, 4a of the spiral electrode group 5.
The two metal meshes 6b have flat plate portions 6A and 7A that are generally opposed to each other.
A, 7A are seam welded to one plate surface 6a, 7a, and the core material exposed portion 3 of the anode plate 3 and cathode plate 4 is
A sealed nickel-cadmium storage battery characterized in that a and 4a are spot welded to the metal mesh 6b which is welded to the anode current collector 6 and the cathode current collector 7, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986013972U JPH0312212Y2 (en) | 1986-02-04 | 1986-02-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986013972U JPH0312212Y2 (en) | 1986-02-04 | 1986-02-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62127667U JPS62127667U (en) | 1987-08-13 |
| JPH0312212Y2 true JPH0312212Y2 (en) | 1991-03-22 |
Family
ID=30803531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986013972U Expired JPH0312212Y2 (en) | 1986-02-04 | 1986-02-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0312212Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001332239A (en) * | 2000-05-25 | 2001-11-30 | Aitekku Kk | Battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105165A (en) * | 1983-11-11 | 1985-06-10 | Matsushita Electric Ind Co Ltd | Manufacture of battery having wound electrode |
-
1986
- 1986-02-04 JP JP1986013972U patent/JPH0312212Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105165A (en) * | 1983-11-11 | 1985-06-10 | Matsushita Electric Ind Co Ltd | Manufacture of battery having wound electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62127667U (en) | 1987-08-13 |
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