JPH07105223B2 - High temperature battery assembly - Google Patents
High temperature battery assemblyInfo
- Publication number
- JPH07105223B2 JPH07105223B2 JP3070471A JP7047191A JPH07105223B2 JP H07105223 B2 JPH07105223 B2 JP H07105223B2 JP 3070471 A JP3070471 A JP 3070471A JP 7047191 A JP7047191 A JP 7047191A JP H07105223 B2 JPH07105223 B2 JP H07105223B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- electrode terminals
- battery assembly
- electrode
- temperature battery
- 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 - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Primary Cells (AREA)
- Secondary Cells (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は断熱容器内に多数本の単
電池を収納した電力貯蔵用の高温電池集合体に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high temperature battery assembly for storing electric power in which a large number of cells are housed in a heat insulating container.
【０００２】[0002]
【従来の技術】電力貯蔵用の高温電池集合体としては、
300 〜350 ℃程度の高温に保たれた断熱容器内にナトリ
ウム−硫黄単電池のような多数本の単電池を収納し、各
単電池の電極間を直並列に接続したものが知られてい
る。従来、単電池の電極端子はアルミニウム又はアルミ
ニウム合金製とされており、これらの電極端子間をステ
ンレススチール製の接続端子を利用してボルト止めした
構造が採用されていた。2. Description of the Related Art As a high temperature battery assembly for power storage,
It is known that many cells such as sodium-sulfur cells are housed in a heat-insulating container maintained at a high temperature of 300 to 350 ° C, and the electrodes of each cell are connected in series and parallel. . Conventionally, the electrode terminals of a single battery have been made of aluminum or an aluminum alloy, and a structure has been adopted in which these electrode terminals are bolted together using a connection terminal made of stainless steel.
【０００３】ところがステンレススチール製の接続端子
は電気抵抗が大きいうえに、酸化膜を生じて接続部の電
気抵抗がかなり大きくなる欠点があった。また、一方の
アルミニウム製の電極端子は硬度が小さいために使用中
に両者を接合しているボルト止め部の接触圧が次第に低
下し、接続部の電気抵抗が増加するという問題があっ
た。更にアルミニウム製の電極端子の表面には電気抵抗
の大きい酸化膜が形成され易く、やはり接続部の電気抵
抗が増加する原因となっていた。However, the connection terminals made of stainless steel have the drawbacks of high electrical resistance and the formation of an oxide film, which considerably increases the electrical resistance of the connection portion. Further, since one of the aluminum electrode terminals has a small hardness, there is a problem that the contact pressure of the bolted portion joining the both is gradually reduced during use, and the electrical resistance of the connection portion increases. Furthermore, an oxide film having a large electric resistance is easily formed on the surface of the electrode terminal made of aluminum, which also causes an increase in the electric resistance of the connection portion.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記した従来
の問題点を解消して、単電池の電極端子間の接続部の電
気抵抗を小さくし、内部抵抗によるエネルギーのロスを
減少させることができる高温電池集合体を提供するため
になされたものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, reduces the electric resistance of the connecting portion between the electrode terminals of the unit cell, and reduces the energy loss due to the internal resistance. The purpose of the present invention is to provide a high temperature battery assembly that can be manufactured.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決するた
めになされた第１の発明は、断熱容器内に収納される多
数本の単電池の電極端子をアルミニウム製の板材とする
とともに、隣接する単電池の電極端子間に断面Ｕ字状の
アルミニウム製の接続端子を介在させ、これらの電極端
子と接続端子の平行部分間をスポット溶接したことを特
徴とするものである。また第２の発明は、断熱容器内に
収納される多数本の単電池の電極端子をアルミニウム製
の板材とするとともに、電極端子の一方を隣接する単電
池の電極端子の方向へ折り曲げ、これらの電極端子の平
行部分間をスポット溶接したことを特徴とするものであ
る。 [Means for Solving the Problems ]
The first invention made for the purpose is to make the electrode terminals of a large number of single cells housed in a heat insulating container a plate member made of aluminum and to have a U-shaped cross section between the electrode terminals of adjacent single cells .
The aluminum connection terminals are used to connect these electrode ends.
Special feature is spot welding between parallel parts of the child and the connection terminal.
It is a characteristic. The second invention is that the heat-insulating container is
The electrode terminals of a large number of stored single cells are made of aluminum
Plate material and one of the electrode terminals is
Bend towards the electrode terminals of the pond and flatten these electrode terminals.
It is characterized by spot welding between line parts.
It
【０００６】[0006]
【作用】本発明の高温電池集合体は、単電池の電極端子
をアルミニウム製の板材からなるものとし、これらの電
極端子間を直接に、あるいはアルミニウム製の接続端子
を介してスポット溶接したものであるから、ボルトを利
用していた従来のもののように接続部が緩むおそれがな
く、また酸化被膜による電気抵抗の増加のおそれもな
い。従って、本発明の高温電池集合体は従来の構造に比
較して接続部の電気抵抗を小さくすることができ、内部
抵抗によるエネルギーのロスを減少させることができ
る。また第１の発明では断面Ｕ字状のアルミニウム製の
接続端子を使用したので熱膨脹を吸収することができ、
第２の発明でも電極端子の一方の折り曲げ部が同様に熱
膨脹を吸収することができる。 In the high temperature battery assembly of the present invention, the electrode terminals of the unit cell are made of aluminum plate material, and the electrode terminals are spot-welded directly or through the aluminum connection terminals. Therefore, there is no risk of loosening of the connection portion unlike the conventional one using bolts, and there is no risk of increase in electrical resistance due to the oxide film. Therefore, the high-temperature battery assembly of the present invention can reduce the electric resistance of the connection portion as compared with the conventional structure, and can reduce the energy loss due to the internal resistance. Further, in the first invention, the aluminum-made member having a U-shaped cross section is used.
Since it uses the connection terminal, it can absorb thermal expansion,
Also in the second invention, one of the bent portions of the electrode terminal is similarly heated.
Can absorb swelling.
【０００７】[0007]
【実施例】以下に本発明を図示の実施例によって更に詳
細に説明する。図１は第１の発明の実施例を示すもので
あり、１は図示を略した高温の断熱容器の内部に収納さ
れるナトリウム−硫黄系の単電池、２はその上面から突
出した電極端子である。本発明においてはこの電極端子
２はアルミニウム（本明細書においてはアルミニウム合
金を含むものとする）製の板材からなるものとされてい
る。３はやはりアルミニウム製の接続端子であり、実施
例の接続端子３は図示のように断面がＵ字状に成形さ
れ、隣接する単電池１の電極端子２、２間を接続してい
る。The present invention will be described below in more detail with reference to the illustrated embodiments. FIG. 1 shows an embodiment of the first invention, in which 1 is a sodium-sulfur type single cell housed in a high-temperature insulating container (not shown), and 2 is an electrode terminal protruding from the upper surface thereof. is there. In the present invention, this electrode terminal 2 is made of a plate material made of aluminum (in this specification, an aluminum alloy is included). Reference numeral 3 is also an aluminum connection terminal, and the connection terminal 3 of the embodiment is formed in a U-shaped cross section as shown in the drawing, and connects between the electrode terminals 2 and 2 of the adjacent unit cells 1.
【０００８】このアルミニウム製の接続端子３はアルミ
ニウム製の電極端子２と平行部分においてスポット溶接
により接続されている。このスポット溶接に先立ち、接
続部の表面はブラッシング及びアセトン洗浄により浄化
され酸化膜を除去しておく。このときの溶接条件は、ア
ルミニウム端子の加圧力を２〜50Kg/cm2、溶接電流5000
〜12000A、通電時間0.1 〜0.4sec、とすることにより確
実な溶接強度と低い電気抵抗とが得られた。接続端子３
と電極端子２とは共にアルミニウム製であるので、スポ
ット溶接により確実に接合することができる。また、ス
ポット溶接個所は１個の端子に対し、２〜４個所溶接す
ることにより確実にスポット溶接ができ、更に電気抵抗
も0.1mΩ以下にすることができる。なお断面がＵ字状の
接続端子３を用いたことにより、各単電池１の電極端子
２の熱膨張による変形を吸収させることができ、しかも
電極端子２と接続端子３は同材質とされているので、両
者間に熱膨張差が生ずることもない。The aluminum connection terminal 3 is connected to the aluminum electrode terminal 2 by spot welding in a parallel portion. Prior to this spot welding, the surface of the connection portion is cleaned by brushing and acetone cleaning to remove the oxide film. The welding conditions at this time are that the pressure of the aluminum terminal is 2 to 50 Kg / cm 2 , and the welding current is 5000.
〜12000A, energizing time 0.1〜0.4sec, reliable welding strength and low electric resistance were obtained. Connection terminal 3
Since both and the electrode terminal 2 are made of aluminum, they can be reliably joined by spot welding. Moreover, spot welding can be surely performed by welding 2 to 4 spots to one terminal, and the electric resistance can be 0.1 mΩ or less. By using the connection terminal 3 having a U-shaped cross section, the deformation of the electrode terminal 2 of each unit cell 1 due to thermal expansion can be absorbed, and the electrode terminal 2 and the connection terminal 3 are made of the same material. Therefore, there is no difference in thermal expansion between the two.
【０００９】図２は第２の発明の実施例を示すものであ
り、ここでは単電池１の電極端子２の一方を図示のよう
に直角に二度折り曲げることにより、接続端子３を使用
することなく隣接する単電池１の電極端子２、２間を直
接接続している。この場合にも電極端子２はアルミニウ
ム製であり、平行部分においてスポット溶接により接合
されている。第２の発明の構造とすれば、第１の発明の
ものに対して接続部の数を半減させることができるの
で、高温電池集合体内の電気抵抗をより小さくすること
ができる。FIG. 2 shows an embodiment of the second invention, in which one of the electrode terminals 2 of the unit cell 1 is bent twice at a right angle as shown to use the connection terminal 3. Instead, the electrode terminals 2 and 2 of the adjacent unit cells 1 are directly connected. Also in this case, the electrode terminal 2 is made of aluminum and is joined by spot welding in the parallel portion. With the structure of the second invention , the number of connecting portions can be halved compared to that of the first invention , so that the electrical resistance in the high temperature battery assembly can be further reduced.
【００１０】[0010]
【発明の効果】本発明は以上に説明したように、単電池
の電極端子をアルミニウム製の板材からなるものとし、
これらの電極端子間を断面Ｕ字状のアルミニウム製の接
続端子を介してまたは直接に、平行部分間でスポット溶
接により接合したものであるから、従来のボルト止め式
のものとは異なり使用中に接続部が緩むおそれがなく、
またアルミニウムを使用したにもかかわらず酸化被膜に
よる電気抵抗の増加のおそれもない。従って、本発明の
高温電池集合体は内部抵抗によるエネルギーのロスが小
さく、電力貯蔵に適したものとなる。As described above, according to the present invention, the electrode terminals of the unit cell are made of aluminum plate material,
Between these electrode terminals , a connection made of aluminum with a U-shaped cross section is used.
Since it is joined by spot welding between parallel parts via a direct terminal or directly, unlike the conventional bolted type, there is no risk of the connection part loosening during use,
Further, although aluminum is used, there is no fear of increase in electric resistance due to the oxide film. Therefore, the high temperature battery assembly of the present invention has a small energy loss due to the internal resistance and is suitable for power storage.
【図１】第１の発明の実施例を示す正面図である。FIG. 1 is a front view showing an embodiment of the first invention .
【図２】第２の発明の実施例を示す正面図である。FIG. 2 is a front view showing an embodiment of the second invention .
１ 単電池 ２ 電極端子 ３ 接続端子 1 Single battery 2 Electrode terminal 3 Connection terminal
Claims (2)
の電極端子をアルミニウム製の板材とするとともに、隣
接する単電池の電極端子間に断面Ｕ字状のアルミニウム
製の接続端子を介在させ、これらの電極端子と接続端子
の平行部分間をスポット溶接したことを特徴とする高温
電池集合体。1. A plate member made of aluminum is used for the electrode terminals of a large number of single cells housed in a heat insulating container, and aluminum having a U-shaped cross section is provided between the electrode terminals of adjacent single cells.
The connection terminals made of
A high-temperature battery assembly characterized by spot welding between parallel portions of .
の電極端子をアルミニウム製の板材とするとともに、電
極端子の一方を隣接する単電池の電極端子の方向へ折り
曲げ、これらの電極端子の平行部分間をスポット溶接し
たことを特徴とする高温電池集合体。Wherein the electrode terminals of the cells of the large number of which are housed in the heat insulating container with the aluminum plate, electrostatic
Fold one of the pole terminals toward the electrode terminal of the adjacent cell.
A high temperature battery assembly characterized by being bent and spot-welded between parallel portions of these electrode terminals .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3070471A JPH07105223B2 (en) | 1991-03-11 | 1991-03-11 | High temperature battery assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3070471A JPH07105223B2 (en) | 1991-03-11 | 1991-03-11 | High temperature battery assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04282556A JPH04282556A (en) | 1992-10-07 |
| JPH07105223B2 true JPH07105223B2 (en) | 1995-11-13 |
Family
ID=13432475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3070471A Expired - Lifetime JPH07105223B2 (en) | 1991-03-11 | 1991-03-11 | High temperature battery assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07105223B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10399922B2 (en) | 2012-05-14 | 2019-09-03 | Nippon Suisan Kaisha, Ltd. | Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59180369U (en) * | 1983-05-18 | 1984-12-01 | 株式会社ユアサコーポレーション | sodium-sulfur battery |
-
1991
- 1991-03-11 JP JP3070471A patent/JPH07105223B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10399922B2 (en) | 2012-05-14 | 2019-09-03 | Nippon Suisan Kaisha, Ltd. | Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04282556A (en) | 1992-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19971111 |