JP2002373638A - Bus bar and battery using the bus bar - Google Patents
Bus bar and battery using the bus barInfo
- Publication number
- JP2002373638A JP2002373638A JP2001183769A JP2001183769A JP2002373638A JP 2002373638 A JP2002373638 A JP 2002373638A JP 2001183769 A JP2001183769 A JP 2001183769A JP 2001183769 A JP2001183769 A JP 2001183769A JP 2002373638 A JP2002373638 A JP 2002373638A
- Authority
- JP
- Japan
- Prior art keywords
- bus bar
- battery
- case
- cells
- cooling air
- 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
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
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複数のセルをバス
バーを介して接続して、大容量化するようにしたバスバ
ーおよびバスバーを用いた電池に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus bar having a plurality of cells connected via a bus bar to increase the capacity, and a battery using the bus bar.
【０００２】[0002]
【従来の技術】従来、電気自動車やハイブリッド車など
に搭載される電池としては、複数のセルを接続して大容
量化した組電池が用いられる。この場合、各セル間をバ
スバーを介して接続したものが、例えば特開２０００−
１８２５９５号公報に開示される。2. Description of the Related Art Conventionally, as a battery mounted on an electric vehicle, a hybrid vehicle, or the like, an assembled battery having a large capacity by connecting a plurality of cells is used. In this case, the connection between the cells via a bus bar is described in, for example,
No. 182595.
【０００３】即ち、従来の組電池の構成単位となるセル
１は、図７に示すように、セパレータを挟んで正極材お
よび負極材を積層した電極積層体２と、この電極積層体
２を収納する外装缶３と、負極材が接続されるとともに
外装缶３に固着される集電体４とを備えて構成される。
そして、前記セル１を図外の他のセルと接続するために
バスバー５が用いられるが、この場合、板状のバスバー
５を前記外装缶３の底部３ａにシリーズスポット溶接す
るようになっており、このバスバー５を介して電流が流
れることで、電池の充放電が行われる。That is, as shown in FIG. 7, a cell 1, which is a constituent unit of a conventional battery pack, includes an electrode laminate 2 in which a positive electrode material and a negative electrode material are laminated with a separator interposed therebetween, and the electrode laminate 2 is housed therein. And a current collector 4 to which a negative electrode material is connected and which is fixed to the outer can 3.
A bus bar 5 is used to connect the cell 1 to another cell (not shown). In this case, a plate-shaped bus bar 5 is series spot-welded to the bottom 3a of the outer can 3. When a current flows through the bus bar 5, the battery is charged and discharged.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、近年の
組電池では低コストを目的として、組電池のセル数を少
なくするという要求があり、また、一方では出力を大き
くするという要求がある。このため、これら相反する要
求を両立するためには、大電流を流すことが必要となる
が、従来の板状のバスバー５で大電流を流そうとする
と、大電流による発熱が問題となる。これを解決するた
めに、バスバー５の断面積を大きくすることが考えられ
るが、断面積の大きいバスバー５は重量が重くなるとと
もに、外装缶３への溶接を行うことが難しくなるといっ
た課題があった。However, in recent battery packs, there is a demand for reducing the number of cells of the battery pack for the purpose of low cost, and on the other hand, there is a demand for increasing the output. For this reason, in order to satisfy these conflicting requirements, it is necessary to flow a large current. However, if a large current is to flow through the conventional plate-shaped bus bar 5, heat generation due to the large current becomes a problem. In order to solve this, it is conceivable to increase the cross-sectional area of the bus bar 5, but there is a problem that the bus bar 5 having a large cross-sectional area becomes heavy and it is difficult to perform welding to the outer can 3. Was.
【０００５】そこで、本発明は、かかる従来の課題に鑑
みて成されたもので、大電流に対応しつつバスバーの軽
量化を達成し、かつ、セルの電極への接続を容易に行う
ことができるバスバーおよびバスバーを用いた電池を提
供することを目的とする。Accordingly, the present invention has been made in view of such conventional problems, and has been made to achieve a reduction in the weight of a bus bar while coping with a large current, and to facilitate connection of a cell to an electrode. An object of the present invention is to provide a bus bar and a battery using the bus bar.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明にあって
は、並設されたセルの電極間を接続するバスバーにおい
て、前記バスバーは、長さ方向に連続した中空部が中央
部分に形成されると共に、端部には少なくとも前記電極
への当接面に対する対向面を切除した切除部が形成され
ていることを特徴としている。According to a first aspect of the present invention, in a bus bar for connecting electrodes of cells arranged side by side, the bus bar has a hollow portion continuous in a length direction formed at a central portion. In addition, the end portion is formed with a cut-out portion in which at least a surface facing a contact surface with the electrode is cut off.
【０００７】請求項２の発明にあっては、請求項１に記
載のバスバーにおいて、前記セルを収納するケースに冷
却風の取入口および排出口を設けて、このケース内に冷
却風を流通するとともに、このケース内には、流通する
冷却風を前記バスバーの中空部に積極的に通過させる仕
切り板を設けたことを特徴としている。According to a second aspect of the present invention, in the busbar according to the first aspect, a case for accommodating the cells is provided with an inlet and an outlet for cooling air, and the cooling air flows through the case. In addition, a partition plate is provided in the case that allows the flowing cooling air to pass through the hollow portion of the bus bar positively.
【０００８】請求項３の発明にあっては、並設されたセ
ルの電極間がバスバーを介して接続されるようになった
電池において、前記バスバーは、長さ方向に連続した中
空部が中央部分に形成されるとともに、端部には少なく
とも前記電極への当接面に対する対向面を切除した切除
部が形成されていることを特徴としている。According to the third aspect of the present invention, in the battery in which the electrodes of the cells arranged in parallel are connected via a bus bar, the bus bar has a hollow portion continuous in the length direction at the center. It is characterized in that it is formed in a portion and a cut-out portion is formed at an end portion, at least a cut-out surface of which is opposed to a contact surface with the electrode.
【０００９】請求項４の発明にあっては、請求項３に記
載のバスバーを用いた電池において、前記セルを収納す
るケースに冷却風の取入口および排出口を設けて、この
ケース内に冷却風を流通するとともに、このケース内に
は、流通する冷却風を前記バスバーの中空部に積極的に
通過させる仕切り板を設けたことを特徴としている。According to a fourth aspect of the present invention, in the battery using the bus bar according to the third aspect, a case for accommodating the cells is provided with an inlet and an outlet for cooling air, and the case is provided with cooling air. It is characterized in that a partition plate is provided in the case that allows the cooling air to flow through the hollow portion of the bus bar while allowing the air to flow.
【００１０】[0010]
【発明の効果】請求項１、および請求項３に記載の発明
によれば、バスバーの中央部分に長さ方向に連続した中
空部が形成されているため、バスバー自体の軽量化を図
りつつ、中空形状によって単に中実形状で大きくした場
合と同じ大電流を流すことができる。また、バスバーは
中空部により表面積が増大するため発熱の冷却効果を向
上して、より大きな電流の通過を許容することができ
る。更に、電極への当接面は、その対向面を切除した切
除部が形成されているので、この切除部からスポット溶
接の電極を前記当接面に押し当てることができるので、
この当接面と電極とのスポット溶接を可能とし、電極と
バスバーとの接続を容易に行うことができる。According to the first and third aspects of the present invention, since the hollow portion continuous in the length direction is formed in the central portion of the bus bar, the bus bar itself can be reduced in weight. With the hollow shape, the same large current as in the case of simply increasing the size in the solid shape can flow. Further, since the surface area of the bus bar is increased by the hollow portion, the cooling effect of heat generation is improved, and a larger current can be allowed to pass. Furthermore, since the contact surface to the electrode is formed with a cut portion obtained by cutting the opposing surface, the spot welding electrode can be pressed against the contact surface from the cut portion.
The spot welding between the contact surface and the electrode is enabled, and the connection between the electrode and the bus bar can be easily performed.
【００１１】請求項２、および請求項４に記載の発明に
よれば、請求項１、請求項３の発明の効果に加えて、前
記セルを収納するケースに流通させた冷却風を、仕切り
板によりバスバーの中空部に積極的に通過させるように
したので、バスバーの冷却効果を更に向上し、バスバー
を流れる大電流の許容量を増すことができる。According to the second and fourth aspects of the present invention, in addition to the effects of the first and third aspects of the present invention, the cooling air circulated through the case accommodating the cells is separated by a partition plate. As a result, the cooling effect of the bus bar is further improved, and the permissible amount of the large current flowing through the bus bar can be increased.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施形態を図面と
共に詳述する。図１から図６は本発明にかかるバスバー
および電池を示し、図１は電池全体のケース中身を示す
平面図、図２は図１中Ａ方向から見た正面図、図３は図
１中Ｂ方向から見た背面図、図４はセル同士を接続する
バスバーの斜視図、図５は同バスバーを平面図（ａ），
正面図（ｂ），右側面図（ｃ）で示す説明図、図６はセ
ルとバスバーとの接続工程を示す説明図である。Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 6 show a bus bar and a battery according to the present invention, FIG. 1 is a plan view showing the contents of the entire battery case, FIG. 2 is a front view seen from the direction A in FIG. 1, and FIG. FIG. 4 is a perspective view of a bus bar connecting cells, and FIG. 5 is a plan view of the bus bar.
FIG. 6 is an explanatory view showing a front view (b) and a right side view (c), and FIG. 6 is an explanatory view showing a process of connecting a cell to a bus bar.
【００１３】本実施形態の電池１０は、図１に示すよう
に、複数のセル１１，１１…を接続した組電池として構
成され、これらセル１１，１１…は、複数が直列配置さ
れたセル直列組１２が、図２，図３に示すように２段構
造をもって整然と並列配置されてケース１３内に収納さ
れるようになっている。そして、ケース１３内に収納さ
れたセル１１，１１…は、バルクヘッド１４によって保
持される。As shown in FIG. 1, the battery 10 of the present embodiment is configured as an assembled battery in which a plurality of cells 11, 11,... Are connected, and these cells 11, 11,. As shown in FIGS. 2 and 3, the sets 12 are arranged in an orderly manner with a two-stage structure and housed in a case 13. The cells 11, 11... Stored in the case 13 are held by the bulkhead 14.
【００１４】このとき、図６に概略的に示すように、セ
ル１１のセル直列組１２は隣接されるもの同士の正極１
１ａと負極１１ｂとが交互に逆配置され、これら隣接さ
れるセル直列組１２の一端側の正極１１ａと負極１１ｂ
がバスバー２０を介して接続されるとともに、他端側は
隣接される異なるセル直列組１２の負極１１ｂと正極１
１ａとが別のバスバー２０を介して順次接続される。At this time, as schematically shown in FIG. 6, the cell series set 12 of the cells 11 has the positive electrode 1 of the adjacent ones.
1a and the negative electrode 11b are alternately and reversely arranged, and the positive electrode 11a and the negative electrode 11b at one end of the adjacent cell series set 12 are arranged.
Are connected via a bus bar 20, and the other end sides of the negative electrode 11 b and the positive electrode 1
1a are sequentially connected via another bus bar 20.
【００１５】つまり、図２に示すように、前記電池１０
を図１中Ａ方向から見た状態では、上下方向に対向する
セル直列組１２同士がそれぞれバスバー２０，２０…を
介して接続され、かつ、図３に示すように、図１中Ｂ方
向から見た状態では、上段の左端のセル直列組１２ａと
下段の右端のセル直列組１２ｂとを除くセル直列組１
２，１２…は、それぞれ１つ置きに左右に隣接されるも
の同士がバスバー２０，２０…を介して接続される。That is, as shown in FIG.
In the state viewed from the direction A in FIG. 1, the cell series sets 12 facing each other in the vertical direction are connected via the bus bars 20, 20,..., Respectively, and as shown in FIG. In the state as seen, the cell series set 1 excluding the upper left cell series set 12a and the lower right cell series set 12b is excluded.
Are connected via busbars 20, 20,... Adjacent to each other.
【００１６】従って、この状態でケース１３内に収納さ
れた複数のセル１１，１１…は、前記上段左端のセル直
列組１２ａと前記下段右端のセル直列組１２ｂとの間で
全てが直列配置されて、それらセル直列組１２ａとセル
直列組１２ｂとの間で大電流が取り出されるようになっ
ている。.. Accommodated in the case 13 in this state are all arranged in series between the upper left cell series set 12a and the lower right cell series set 12b. Thus, a large current is taken out between the cell series set 12a and the cell series set 12b.
【００１７】ここで、前記バスバー２０は、図４，図５
に示すように、断面矩形状の中空管を用いて所定長さに
形成され、中央部分にバスバー２０の長さ方向に連続し
た中空部２０ａが形成されるとともに、両端部にはセル
１１に当接する底面２０ｂを除いた隣接する２面を切除
した切除部２０ｃ，２０ｄが形成される。Here, the bus bar 20 is shown in FIGS.
As shown in FIG. 2, a hollow tube having a rectangular cross section is formed to a predetermined length, a hollow portion 20a continuous in the length direction of the bus bar 20 is formed at a central portion, and a cell 11 is formed at both ends. Cut portions 20c and 20d are formed by cutting two adjacent surfaces excluding the abutting bottom surface 20b.
【００１８】このとき、両端部の切除部２０ｃ，２０ｄ
は、それぞれ底面２０ｂに対する対向面が切除されてお
り、図６に示すように、この対向面の切除部分から溶接
電極３０，３０ａが挿入されるようになっている。ま
た、前記切除部２０ｃ，２０ｄは、隣接する２面が切除
された場合に、残される側面２０ｅ，２０ｆは互いに対
向する関係となっている。At this time, the cutout portions 20c and 20d at both ends are provided.
Each has a cutaway surface facing the bottom surface 20b, and as shown in FIG. 6, the welding electrodes 30, 30a are inserted from cutout portions of the opposed surfaces. In addition, when the adjacent two surfaces of the cut portions 20c and 20d are cut, the remaining side surfaces 20e and 20f are in a relationship of facing each other.
【００１９】ところで、図６に示すように、前記溶接電
極３０，３０ａを用いてバスバー２０をセル１１に接続
する際、まず、切除部２０ｃ，２０ｄの底面２０ｂの外
側面を隣接するセル１１の正，負極１１ａ，１１ｂに当
接した後、前記溶接電極３０，３０ａをその底面２０ｂ
の内側面に圧接する。そして、溶接電極３０，３０ａ間
に電流を流すことにより、底面２０ｂと電極１１ａ，１
１ｂとの各接触面が、図６中×印で示すように、前記溶
接電極３０，３０ａに対応した２箇所でシリーズスポッ
ト溶接（符号Ｐにて示す）される。As shown in FIG. 6, when the bus bar 20 is connected to the cell 11 using the welding electrodes 30 and 30a, first, the outer surface of the bottom surface 20b of the cutouts 20c and 20d is connected to the cell 11 adjacent thereto. After contacting the positive and negative electrodes 11a, 11b, the welding electrodes 30, 30a are connected to the bottom surface 20b.
Press against the inside surface of. Then, by passing a current between the welding electrodes 30 and 30a, the bottom surface 20b and the electrodes 11a and 1
Each contact surface with 1b is subjected to series spot welding (indicated by the symbol P) at two locations corresponding to the welding electrodes 30, 30a as shown by the mark x in FIG.
【００２０】セル１１，１１…を収納した前記ケース１
３には、セル直列組１２の並列配置方向（図１中左右方
向）の片側に冷却風Ｗの取入口１３ａが形成されるとと
もに、他側に冷却風Ｗの排出口１３ｂが形成される。そ
して、取入口１３ａから冷却風Ｗをケース１３内に取り
入れた後、排出口１３ｂから外方に排出することによ
り、冷却風Ｗがケース１３内を流通するようになってい
る。The case 1 containing the cells 11, 11,...
3, an inlet 13a for the cooling air W is formed on one side in the parallel arrangement direction (the horizontal direction in FIG. 1) of the cell series set 12, and an outlet 13b for the cooling air W is formed on the other side. Then, after the cooling air W is taken into the case 13 from the intake 13a, the cooling air W is circulated through the case 13 by being discharged from the outlet 13b to the outside.
【００２１】このとき、冷却風Ｗは各セル１１，１１…
を保持する１対のバルクヘッド１４間を流通するように
なっており、セル１１，１１…の直列配置方向（図１中
上下方向）の端部に配置されるバルクヘッド１４には、
取入口１３ａに通ずる第１開口部１４ａと排出口１３ｂ
に通ずる第２開口部１４ｂが形成される。そして、第１
開口部１４ａから導入された冷却風Ｗは、矢印で示すよ
うに、バスバー２０の配置部分を流通した後、第２開口
部１４ｂから排出されるようになっている。At this time, the cooling air W is applied to each of the cells 11, 11.
Flow through a pair of bulkheads 14 holding the cells, and the bulkheads 14 arranged at the ends of the cells 11, 11,... In the series arrangement direction (vertical direction in FIG. 1) include:
First opening 14a and outlet 13b leading to inlet 13a
The second opening 14b is formed to communicate with the second opening 14b. And the first
The cooling air W introduced from the opening 14a is discharged from the second opening 14b after flowing through the arrangement portion of the bus bar 20, as indicated by the arrow.
【００２２】そして、図２に示すように、上下方向に対
向するセル直列組１２同士がバスバー２０，２０…で接
続された側には、各バスバー２０，２０…の端部間を遮
断するように仕切り板２１が取付けられ、第１開口部１
４ａから導入された冷却風Ｗがバスバー２０，２０…の
中空部を積極的に通過させるようになっている。As shown in FIG. 2, on the side where the vertically connected cell series sets 12 are connected by the bus bars 20, 20,..., The ends of the bus bars 20, 20,. A partition plate 21 is attached to the first opening 1.
The cooling air W introduced from 4a positively passes through the hollow portions of the bus bars 20, 20,....
【００２３】また、図３に示すように、１つ置きに左右
に隣接されるもの同士がバスバー２０，２０…で接続さ
れた側には、上下のバスバー２０，２０…間およびそれ
らバスバー２０，２０…とケース１３との間を遮断する
ように仕切り板２１を設けて、第１開口部１４ａから導
入された冷却風Ｗがバスバー２０，２０…の中空部を積
極的に通過させるようになっている。As shown in FIG. 3, on the side where every other left and right adjacent ones are connected by bus bars 20, 20,..., Between the upper and lower bus bars 20, 20,. A partition plate 21 is provided so as to shut off between the case 20 and the case 13, so that the cooling air W introduced from the first opening 14a can positively pass through the hollow portions of the bus bars 20, 20,. ing.
【００２４】以上の構成により本実施形態の電池１０に
あっては、複数のセル１１，１１…が直列配置されたセ
ル直列組１２が並列配置されてケース１３内に収納さ
れ、そして、並列配置されたセル直列組１２はそれぞれ
バスバー２０，２０…を介して直列接続されることによ
り、大電流が発生されるようになっている。With the above configuration, in the battery 10 of the present embodiment, a cell series set 12 in which a plurality of cells 11, 11... Are arranged in series is arranged in parallel and housed in a case 13, and is arranged in parallel. The series connected cells 12 are connected in series via bus bars 20, 20,..., Respectively, so that a large current is generated.
【００２５】このとき、バスバー２０は、その中央部分
に長さ方向に連続した中空部２０ａが形成されているた
め、バスバー２０自体の軽量化を図りつつ、中空形状に
よって単に中実形状で大きくした場合と同じ大電流を流
すことができ、本実施形態の電池１０に十分に対応でき
るようになっている。また、バスバー２０は中空部２０
ａにより表面積が増大するため、発熱の冷却効果が向上
され、より大きな電流の通過を許容することができる。At this time, since the bus bar 20 has a hollow portion 20a which is continuous in the length direction at the center thereof, the bus bar 20 is simply made larger by the hollow shape while reducing the weight of the bus bar 20 itself. The same large current can be passed as in the case, and the battery 10 of the present embodiment can be sufficiently coped with. In addition, the bus bar 20 has a hollow portion 20.
Since the surface area is increased by a, the cooling effect of heat generation is improved, and a larger current can be allowed to pass.
【００２６】ところで、前記バスバー２０は、その両端
部がセル１１の正，負極１１ａ，１１ｂに当接して接続
されるが、本実施形態ではバスバー２０が正，負極１１
ａ，１１ｂに溶接される当接面（底面２０ｂ）は、その
対向面を切除した切除部２０ｃ，２０ｄが形成されてい
るので、この切除部２０ｃ，２０ｄからシリーズスポッ
ト溶接Ｐの溶接電極３０，３０ａを前記底面２０ｂに押
し当てることができる。従って、前記底面２０ｂと正，
負極１１ａ，１１ｂとのシリーズスポット溶接Ｐを可能
とし、これら正，負極１１ａ，１１ｂとバスバー２０と
の接続を容易に行うことができる。The bus bar 20 is connected by contacting both ends of the bus bar 20 to the positive and negative electrodes 11a and 11b of the cell 11. In the present embodiment, the bus bar 20 is connected to the positive and negative electrodes 11a and 11b.
The contact surface (bottom surface 20b) to be welded to the a and 11b is formed with cut portions 20c and 20d in which opposing surfaces are cut, so that the welding electrodes 30, 20 of the series spot welding P are formed from the cut portions 20c and 20d. 30a can be pressed against the bottom surface 20b. Therefore, the bottom surface 20b is positive,
Series spot welding P with the negative electrodes 11a and 11b is enabled, and connection between the positive and negative electrodes 11a and 11b and the bus bar 20 can be easily performed.
【００２７】更に、本実施形態ではセル１１，１１…を
収納するケース１３に冷却風Ｗの取入口１３ａおよび排
出口１３ｂを形成して冷却風Ｗをケース１３内に流通さ
せるとともに、ケース１３に仕切り板２１を設けて、冷
却風Ｗをバスバー２０の中空部２０ａに積極的に通過さ
せるようにしたので、バスバー２０の冷却効果を更に向
上し、このバスバー２０を流れる大電流の許容量を増す
ことができる。Further, in the present embodiment, an inlet 13a and an outlet 13b for the cooling air W are formed in the case 13 for accommodating the cells 11, 11,. Since the partitioning plate 21 is provided to allow the cooling air W to positively pass through the hollow portion 20a of the bus bar 20, the cooling effect of the bus bar 20 is further improved, and the allowable amount of the large current flowing through the bus bar 20 is increased. be able to.
【００２８】ところで、本発明の電池は前記実施形態に
限ることなく、本発明の主旨を逸脱しない範囲で各種実
施形態をとることができる。By the way, the battery of the present invention is not limited to the above embodiment, but can take various embodiments without departing from the gist of the present invention.
【図１】本発明の一実施形態において電池全体のケース
中身を示す平面図である。FIG. 1 is a plan view showing the entire contents of a battery case according to an embodiment of the present invention.
【図２】本発明の一実施形態において図１中Ａ方向から
見た正面図である。FIG. 2 is a front view viewed from a direction A in FIG. 1 in one embodiment of the present invention.
【図３】本発明の一実施形態において図１中Ｂ方向から
見た背面図である。FIG. 3 is a rear view of one embodiment of the present invention as viewed from a direction B in FIG. 1;
【図４】本発明の一実施形態においてセル同士を接続す
るバスバーの斜視図である。FIG. 4 is a perspective view of a bus bar that connects cells in one embodiment of the present invention.
【図５】本発明の一実施形態においてバスバーを平面図
（ａ），正面図（ｂ），右側面図（ｃ）で示す説明図で
ある。FIG. 5 is an explanatory view showing a bus bar in a plan view (a), a front view (b), and a right side view (c) in one embodiment of the present invention.
【図６】本発明の一実施形態においてセルとバスバーと
の接続工程を示す説明図である。FIG. 6 is an explanatory diagram showing a connection process between a cell and a bus bar in one embodiment of the present invention.
【図７】従来の電池のバスバー接続部を示す要部断面図
である。FIG. 7 is a sectional view of a main part showing a bus bar connection part of a conventional battery.
１０ 電池 １１ セル １１ａ，１１ｂ 電極 １２ セル直列組 １３ ケース １３ａ 取入口 １３ｂ 排出口 ２０ バスバー ２０ａ 中空部 ２０ｂ 底面（当接面） ２０ｃ，２０ｄ 切除部 ２１ 仕切り板 ３０，３０ａ 溶接電極 DESCRIPTION OF SYMBOLS 10 Battery 11 Cell 11a, 11b Electrode 12 Cell series set 13 Case 13a Inlet 13b Outlet 20 Bus bar 20a Hollow part 20b Bottom (contact surface) 20c, 20d Cut part 21 Partition plate 30, 30a Welding electrode
Claims (4)
バーにおいて、 前記バスバーは、長さ方向に連続した中空部が中央部分
に形成されると共に、端部には少なくとも前記電極への
当接面に対する対向面を切除した切除部が形成されてい
ることを特徴とするバスバー。1. A bus bar for connecting electrodes of cells arranged side by side, wherein the bus bar has a hollow portion which is continuous in a length direction formed at a central portion, and at least an end portion of the bus bar which contacts the electrode. A bus bar, wherein a cut portion formed by cutting a surface facing the contact surface is formed.
入口および排出口を設けて、このケース内に冷却風を流
通するとともに、このケース内には、流通する冷却風を
前記バスバーの中空部に積極的に通過させる仕切り板を
設けたことを特徴とする請求項１に記載のバスバー。2. A case for accommodating the cooling air is provided in a case for accommodating the cells, and the cooling air is circulated in the case. 2. The bus bar according to claim 1, wherein a partition plate is provided for positively passing the portion.
して接続されるようになった電池において、 前記バスバーは、長さ方向に連続した中空部が中央部分
に形成されるとともに、端部には少なくとも前記電極へ
の当接面に対する対向面を切除した切除部が形成されて
いることを特徴とするバスバーを用いた電池。3. A battery in which electrodes of juxtaposed cells are connected via a bus bar, wherein the bus bar has a hollow portion continuous in a length direction formed at a central portion, and an end portion. A battery using a bus bar, wherein at least a cut portion formed by cutting at least a surface facing an electrode contact surface is formed at the portion.
入口および排出口を設けて、このケース内に冷却風を流
通するとともに、このケース内には、流通する冷却風を
前記バスバーの中空部に積極的に通過させる仕切り板を
設けたことを特徴とする請求項３に記載のバスバーを用
いた電池。4. A case for accommodating cooling air is provided in a case for accommodating the cell, and a cooling air is circulated in the case. The battery using a bus bar according to claim 3, wherein a partition plate for positively passing through the portion is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001183769A JP4029585B2 (en) | 2001-06-18 | 2001-06-18 | Bus bar and battery using bus bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001183769A JP4029585B2 (en) | 2001-06-18 | 2001-06-18 | Bus bar and battery using bus bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002373638A true JP2002373638A (en) | 2002-12-26 |
| JP4029585B2 JP4029585B2 (en) | 2008-01-09 |
Family
ID=19023661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001183769A Expired - Fee Related JP4029585B2 (en) | 2001-06-18 | 2001-06-18 | Bus bar and battery using bus bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4029585B2 (en) |
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| WO2008055356A1 (en) * | 2006-11-10 | 2008-05-15 | Hydrogenics Corporation | Bus bar assembly for an electrochemical cell stack |
| JP2009059474A (en) * | 2007-08-29 | 2009-03-19 | Honda Motor Co Ltd | Battery storage unit |
| WO2010114311A3 (en) * | 2009-04-01 | 2011-01-20 | 주식회사 엘지화학 | Battery module having improved safety |
| US20110020686A1 (en) * | 2009-02-24 | 2011-01-27 | Yazaki Corporation | Cooling system for battery pack |
| JP2011507199A (en) * | 2007-12-20 | 2011-03-03 | ダイムラー・アクチェンゲゼルシャフト | Battery with case and heat conducting plate |
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| JP2012155948A (en) * | 2011-01-25 | 2012-08-16 | Auto Network Gijutsu Kenkyusho:Kk | Bus bar for battery pack and bus bar module |
| JP2014110137A (en) * | 2012-11-30 | 2014-06-12 | Toyota Motor Corp | Temperature control system |
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| JP2009059474A (en) * | 2007-08-29 | 2009-03-19 | Honda Motor Co Ltd | Battery storage unit |
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| WO2011122455A1 (en) | 2010-03-29 | 2011-10-06 | 株式会社神戸製鋼所 | Electrode terminal, and method for producing electrode terminal |
| US8801444B2 (en) | 2010-03-29 | 2014-08-12 | Kobe Steel, Ltd. | Busbar and busbar manufacturing method |
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| US10516191B2 (en) * | 2016-09-07 | 2019-12-24 | Thunder Power New Energy Vehicle Development Company Limited | Methods and systems for busbar cooling |
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