JP6107091B2 - Assembled battery and manufacturing method of assembled battery - Google Patents

Assembled battery and manufacturing method of assembled battery Download PDF

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JP6107091B2
JP6107091B2 JP2012265474A JP2012265474A JP6107091B2 JP 6107091 B2 JP6107091 B2 JP 6107091B2 JP 2012265474 A JP2012265474 A JP 2012265474A JP 2012265474 A JP2012265474 A JP 2012265474A JP 6107091 B2 JP6107091 B2 JP 6107091B2
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frame
conductive
assembled battery
electrode tab
connection
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JP2014110219A (en
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拓郎 梶谷
拓郎 梶谷
辰徳 成清
辰徳 成清
幸治 藤枝
幸治 藤枝
茂樹 萱野
茂樹 萱野
知文 吉永
知文 吉永
康啓 鈴木
康啓 鈴木
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日産自動車株式会社
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Description

本発明は、組電池および組電池の製造方法に関する。   The present invention relates to an assembled battery and a method for manufacturing the assembled battery.
発電要素を外装体内に封止するとともに発電要素に接続した板状の電極タブを外装体の外部に導出した扁平な単電池を複数積層して形成した組電池が知られている。積層された各単電池の電極タブ同士は電気的に接続される。例えば特許文献1に記載の組電池は、小型化のため、積層された各単電池の電極タブを積層方向に略L字状に折り曲げるとともに隣り合う単電池の電極タブの折り曲げ部先端同士を直接接合することによって、電極タブの接続部の突出量を減少させている。このような構成を有する組電池では、電極タブ同士の接合時に電極タブの折り曲げ部先端同士が面接触していなければならないため、電極タブ同士を精度良く重ね合わせる必要がある。   There is known an assembled battery in which a plurality of flat unit cells in which a power generation element is sealed in an exterior body and a plate-like electrode tab connected to the power generation element is led out of the exterior body are stacked. The electrode tabs of the stacked unit cells are electrically connected. For example, in the battery pack described in Patent Document 1, for miniaturization, the electrode tabs of the stacked unit cells are bent in a substantially L shape in the stacking direction and the ends of the bent portions of the electrode tabs of adjacent unit cells are directly connected to each other. By joining, the protrusion amount of the connection part of an electrode tab is reduced. In the assembled battery having such a configuration, the ends of the bent portions of the electrode tabs must be in surface contact with each other when the electrode tabs are joined to each other.
特開2004−63347号公報JP 2004-63347 A
しかしながら、電極タブの合わせ面の位置精度は、電極タブの曲げ成形における精度、電極タブの延在方向における位置ずれ、および単電池の厚さ寸法誤差等による積層方向における電極タブの位置ずれの積み上げによって影響を受けるため、高精度な位置合わせが困難である。また、高精度な位置合わせを行うために、電極タブの曲げ成形の精度、単電池の寸法精度等に充分注意を払わなければならず、そのため生産性が悪いという問題があった。   However, the positional accuracy of the mating surfaces of the electrode tabs is the accumulation of misalignment of the electrode tabs in the stacking direction due to the accuracy in bending the electrode tabs, the misalignment in the extending direction of the electrode tabs, and the unit cell thickness dimension error Therefore, highly accurate positioning is difficult. In addition, in order to perform highly accurate alignment, sufficient attention must be paid to the accuracy of bending and forming the electrode tabs, the dimensional accuracy of the unit cells, and so on, so that the productivity is poor.
本発明は、このような課題を解決するためになされたものであり、電極タブの曲げ精度および電極タブの位置ずれに関わりなく確実に単電池を接続できる組電池および組電池の製造方法を提供することを目的とする。   The present invention has been made to solve such problems, and provides an assembled battery and a method of manufacturing the assembled battery that can reliably connect single cells regardless of the bending accuracy of the electrode tab and the positional deviation of the electrode tab. The purpose is to do.
上記目的を達成するための本発明の組電池は、外装体内部に発電要素を封止するとともに外装体内部から発電要素に接続された板状の電極タブを外装体外部に導出した扁平な単電池を複数積層した構成を有する。本発明の組電池は、単電池の電極タブと平行に延びて電極タブが接続する接続部と、接続部に接続するとともに電極タブの先端よりも外側から単電池の積層方向に延びる延在部とを備える導電部材を備える。本発明の組電池は、積層方向に隣り合う導電部材の延在部間を接続するバスバを備える。   In order to achieve the above object, the assembled battery of the present invention is a flat single unit in which a power generation element is sealed inside an exterior body and a plate-like electrode tab connected to the power generation element from the interior of the exterior body is led out of the exterior body. It has a configuration in which a plurality of batteries are stacked. The assembled battery of the present invention includes a connecting portion that extends in parallel with the electrode tab of the unit cell and to which the electrode tab is connected, and an extending portion that is connected to the connecting portion and extends from the outside of the tip of the electrode tab in the unit cell stacking direction. And a conductive member. The assembled battery of this invention is provided with the bus bar which connects between the extension parts of the electrically-conductive member adjacent in a lamination direction.
上記目的を達成するための本発明の組電池の製造方法は、外装体内部に発電要素を封止するとともに外装体内部から発電要素に接続された板状の電極タブを外装体外部に導出した扁平な単電池を複数積層して形成される組電池の製造方法である。本発明の組電池の製造方法は、単電池の電極タブと平行に延びる接続部と、接続部に接続するとともに電極タブの先端よりも外側から接続部に対して略直交する方向に延びる延在部と、を備える導電部材の接続部に対し、単電池の電極タブを接続する電極タブ接続工程を有する。本発明の組電池の製造方法は、積層された単電池の積層方向に隣り合う導電部材の延在部間に配置されたバスバを、延在部に接続するバスバ接続工程を有する。   In order to achieve the above object, the battery pack manufacturing method of the present invention seals the power generation element inside the exterior body and leads out the plate-like electrode tab connected to the power generation element from the exterior body to the outside of the exterior body. It is a manufacturing method of an assembled battery formed by stacking a plurality of flat unit cells. The assembled battery manufacturing method of the present invention includes a connection portion extending in parallel with the electrode tab of the unit cell, and extending in a direction substantially orthogonal to the connection portion from the outside of the tip of the electrode tab while being connected to the connection portion. And an electrode tab connection step of connecting the electrode tab of the unit cell to the connection portion of the conductive member. The manufacturing method of the assembled battery of this invention has a bus bar connection process which connects the bus bar arrange | positioned between the extension parts of the electrically-conductive member adjacent to the lamination direction of the laminated | stacked single battery to an extension part.
本発明の組電池および組電池の製造方法においては、電極タブは当該電極タブと平行に延びる接続部に接続される。このため、電極タブの延在方向への位置ずれがあっても、電極タブと接続部とは、電極タブの位置ずれに応じて延在方向の位置をずらして接続する。従って、本発明の組電池および組電池の製造方法は、電極タブの延在方向の位置ずれに関わりなく確実に単電池を接続できる。   In the assembled battery and the method for manufacturing the assembled battery of the present invention, the electrode tab is connected to a connection portion extending in parallel with the electrode tab. For this reason, even if there is a positional shift in the extending direction of the electrode tab, the electrode tab and the connecting portion are connected by shifting the position in the extending direction according to the positional shift of the electrode tab. Therefore, according to the assembled battery and the assembled battery manufacturing method of the present invention, the unit cells can be reliably connected regardless of the positional deviation in the extending direction of the electrode tab.
また、本発明の組電池および組電池の製造方法においては、積層される単電池同士は、積層方向に延びる延在部およびこれに接続するバスバを介して接続される。このため、単電池同士を接続するために電極タブを曲げる必要がない。また、電極タブの積層方向の位置ずれがあっても、電極タブの位置ずれに応じて積層方向の位置をずらして接続する延在部およびバスバを介して、電極タブ同士は接続する。従って、本発明の組電池および組電池の製造方法は、電極タブの曲げ精度および積層方向の位置ずれに関わりなく確実に単電池を接続できる。   Moreover, in the assembled battery and the manufacturing method of the assembled battery according to the present invention, the unit cells to be stacked are connected to each other via an extending portion extending in the stacking direction and a bus bar connected to the extending portion. For this reason, it is not necessary to bend an electrode tab in order to connect single cells. Further, even if the electrode tabs are misaligned in the stacking direction, the electrode tabs are connected to each other via the extending portion and the bus bar that are connected by shifting the positions in the stacking direction according to the misalignment of the electrode tabs. Therefore, according to the assembled battery and the assembled battery manufacturing method of the present invention, the unit cells can be reliably connected regardless of the bending accuracy of the electrode tab and the positional deviation in the stacking direction.
実施形態の組電池の斜視図である。It is a perspective view of the assembled battery of embodiment. 実施形態の組電池を分解して示す斜視図である。It is a perspective view which decomposes | disassembles and shows the assembled battery of embodiment. 実施形態の電池モジュールの斜視図である。It is a perspective view of the battery module of an embodiment. 実施形態の電池モジュールを分解して示す斜視図である。It is a perspective view which decomposes | disassembles and shows the battery module of embodiment. 図3の5−5線に沿う断面図である。FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. 図5に示された部材同士を分解して示す断面図である。It is sectional drawing which decomposes | disassembles and shows the members shown by FIG. バスバおよびバスバ保持プレートを電池モジュール群から取り外して示す斜視図である。It is a perspective view which removes and shows a bus bar and a bus bar holding plate from a battery module group. 図1の8−8線に沿う断面図である。It is sectional drawing which follows the 8-8 line | wire of FIG. 実施形態の組電池の製造方法を示すフローチャートである。It is a flowchart which shows the manufacturing method of the assembled battery of embodiment. 変形例1の組電池の要部を示す図8に対応した断面図である。FIG. 9 is a cross-sectional view corresponding to FIG. 8 illustrating a main part of a battery pack according to Modification 1. 変形例1の組電池のフレーム部材の要部および導電部材の断面図である。FIG. 6 is a cross-sectional view of a main part of a frame member and a conductive member of an assembled battery according to Modification 1; 変形例2の組電池の要部を示す図8に対応した断面図である。It is sectional drawing corresponding to FIG. 8 which shows the principal part of the assembled battery of the modification 2. 変形例3の組電池の要部を示す図8に対応した断面図である。FIG. 9 is a cross-sectional view corresponding to FIG. 8 illustrating a main part of an assembled battery according to Modification 3. 実施形態の組電池の他の例の要部を示す図8に対応した断面図である。It is sectional drawing corresponding to FIG. 8 which shows the principal part of the other example of the assembled battery of embodiment. 実施形態の組電池のさらに他の例の要部を示す図8に対応した断面図である。It is sectional drawing corresponding to FIG. 8 which shows the principal part of the further another example of the assembled battery of embodiment.
以下、添付した図面を参照しながら、本発明の実施形態を説明する。なお、図面の寸法比率は、説明の都合上誇張されており、実際の比率とは異なる。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the dimension ratio of drawing is exaggerated on account of description, and is different from an actual ratio.
図1および図2に示すように、実施形態の組電池10は、積層された複数の電池モジュール101によって構成される電池モジュール群100と、電池モジュール群100を保持する保持板110と、を有する。組電池10は、電池モジュール101同士を電気的に接続するサイドプレート120を有する。   As illustrated in FIGS. 1 and 2, the assembled battery 10 according to the embodiment includes a battery module group 100 including a plurality of stacked battery modules 101, and a holding plate 110 that holds the battery module group 100. . The assembled battery 10 includes a side plate 120 that electrically connects the battery modules 101 to each other.
保持板110は、電池モジュール群100の上方に設けられて電池モジュール群100を保持するアッパープレート111と、電池モジュール群100を載置して保持するロアプレート112と、を有する。組電池10は、アッパープレート111およびロアプレート112を締結する締結ボルト113を含む。締結ボルト113を挿通可能な孔114がアッパープレート111に設けられている。締結ボルト113が螺合するねじ穴115がロアプレート112に設けられている。   The holding plate 110 includes an upper plate 111 that is provided above the battery module group 100 and holds the battery module group 100, and a lower plate 112 that places and holds the battery module group 100. The assembled battery 10 includes a fastening bolt 113 that fastens the upper plate 111 and the lower plate 112. A hole 114 through which the fastening bolt 113 can be inserted is provided in the upper plate 111. A screw hole 115 into which the fastening bolt 113 is screwed is provided in the lower plate 112.
図3および図4に示すように、電池モジュール101は、扁平形状を有する単電池102と、単電池102が載置されるフレーム部材103と、を有する。電池モジュール101は、二つの単電池102を有する。単電池102は、フレーム部材103の積層方向表裏面のそれぞれに載置される。締結ボルト113が通る孔103aがフレーム部材103に設けられている。   As shown in FIGS. 3 and 4, the battery module 101 includes a unit cell 102 having a flat shape and a frame member 103 on which the unit cell 102 is placed. The battery module 101 has two unit cells 102. The unit cell 102 is placed on each of the front and back surfaces of the frame member 103 in the stacking direction. A hole 103 a through which the fastening bolt 113 passes is provided in the frame member 103.
単電池102は、充放電が行われる発電要素102aを外装体102b内部に封止するとともに発電要素102aに接続された板状の電極タブ102cを外装体102bの内部から外装体102bの外部に導出した構成を有する。単電池102は、例えばリチウムイオン二次電池である。   The unit cell 102 seals the power generation element 102a to be charged and discharged inside the exterior body 102b and leads the plate-like electrode tab 102c connected to the power generation element 102a from the inside of the exterior body 102b to the outside of the exterior body 102b. The configuration is as follows. The unit cell 102 is, for example, a lithium ion secondary battery.
外装体102bは例えばラミネートフィルムである。ラミネートフィルムは例えば樹脂フィルムと樹脂フィルムとの間にアルミニウム箔を積層した構成を有する。発電要素102aは、正極と負極とを電解質層を介して積層した構成を有する。電極タブ102cは、単電池102の矩形形状を有する本体の対向する端辺のそれぞれから導出される。導出された電極タブ102cの一方は正極であり、他方は負極である。正極は例えばアルミニウムによって形成される。負極は例えば銅によって形成される。電池モジュール101は、電極タブ102cに電気的に接続する導電部材104を有する。導電部材104は例えば銅によって形成される。   The exterior body 102b is, for example, a laminate film. For example, the laminate film has a configuration in which an aluminum foil is laminated between a resin film and a resin film. The power generation element 102a has a configuration in which a positive electrode and a negative electrode are stacked via an electrolyte layer. The electrode tab 102c is led out from each of the opposing side edges of the main body having a rectangular shape of the unit cell 102. One of the derived electrode tabs 102c is a positive electrode, and the other is a negative electrode. The positive electrode is made of aluminum, for example. The negative electrode is made of, for example, copper. The battery module 101 includes a conductive member 104 that is electrically connected to the electrode tab 102c. The conductive member 104 is made of copper, for example.
図5に示すように、導電部材104は、電極タブ102cと略平行に延びて電極タブ102cが接続する接続部104aと、接続部104aに接続するとともに電極タブ102cの先端よりも外側から積層方向に延びる延在部104bと、を有する。導電部材104は、例えば接着剤によってフレーム部材103に接続される。   As shown in FIG. 5, the conductive member 104 has a connection portion 104a that extends substantially parallel to the electrode tab 102c and connects to the electrode tab 102c, and is connected to the connection portion 104a and stacked from the outside of the tip of the electrode tab 102c. Extending part 104b. The conductive member 104 is connected to the frame member 103 by an adhesive, for example.
図6に示すように、フレーム部材103は、単電池102の電極タブ102cに沿う載置面103bと、積層方向に沿う外周面103cと、を有する。導電部材104の接続部104aは、載置面103bに配置される。導電部材104の延在部104bは、外周面103cに配置される。フレーム部材103は、例えば強化プラスチックによって形成される。   As shown in FIG. 6, the frame member 103 has a mounting surface 103b along the electrode tab 102c of the unit cell 102 and an outer peripheral surface 103c along the stacking direction. The connection portion 104a of the conductive member 104 is disposed on the placement surface 103b. The extending portion 104b of the conductive member 104 is disposed on the outer peripheral surface 103c. The frame member 103 is made of, for example, reinforced plastic.
接続部104aはフレーム部材103の積層方向表裏の載置面103bのそれぞれに配置される。これら二つの接続部104aはフレーム部材103の積層方向表裏で隣り合う電極タブ102cにそれぞれ接続する。延在部104bはこれら二つの接続部104aに接続する。導電部材104は、フレーム部材103の積層方向表裏面のそれぞれに載置された二つの単電池102を電気的に接続する。   The connecting portions 104a are disposed on the placement surfaces 103b on the front and back of the frame member 103 in the stacking direction. These two connection portions 104a are respectively connected to electrode tabs 102c adjacent to each other on the front and back in the stacking direction of the frame member 103. The extending part 104b is connected to these two connecting parts 104a. The conductive member 104 electrically connects the two unit cells 102 placed on the front and back surfaces of the frame member 103 in the stacking direction.
導電部材104が接続する二つの電極タブ102cは同極である。フレーム部材103の積層方向表裏面のそれぞれに載置された二つの単電池102は、導電部材104によって電気的に並列に接続して並列体を形成する。   The two electrode tabs 102c to which the conductive member 104 is connected have the same polarity. Two unit cells 102 placed on the front and back surfaces of the frame member 103 in the stacking direction are electrically connected in parallel by the conductive member 104 to form a parallel body.
図7に示すように、サイドプレート120は、導電性を有するバスバ121と、バスバ121を保持するバスバ保持プレート122と、を有する。バスバ121は例えば銅によって形成される。バスバ保持プレート122は、例えばプラスチックによって形成される。   As illustrated in FIG. 7, the side plate 120 includes a conductive bus bar 121 and a bus bar holding plate 122 that holds the bus bar 121. The bus bar 121 is made of copper, for example. The bus bar holding plate 122 is made of plastic, for example.
バスバ保持プレート122は、複数のバスバ121を一体的に保持する。バスバ保持プレート122は、バスバ121の縁に引っ掛かってバスバ121を保持する鉤部123を有する。導電部材104および電極タブ102cを挿通可能な挿通孔124がバスバ保持プレート122に設けられている。鉤部123は、積層方向に隣り合う二つの挿通孔124と対向するように各バスバ121を保持する。バスバ保持プレート122は絶縁性を有する。   The bus bar holding plate 122 integrally holds the plurality of bus bars 121. The bus bar holding plate 122 has a flange 123 that is hooked on the edge of the bus bar 121 and holds the bus bar 121. An insertion hole 124 through which the conductive member 104 and the electrode tab 102 c can be inserted is provided in the bus bar holding plate 122. The flange portion 123 holds each bus bar 121 so as to face two insertion holes 124 adjacent in the stacking direction. The bus bar holding plate 122 has an insulating property.
図8に示すように、バスバ121は、積層方向に隣り合う導電部材104の延在部104b間を接続する。バスバ121は延在部104bに接合される。バスバ121は、導電部材104によって二つの単電池102が電気的に並列に接続した一の並列体と、これと積層方向に隣り合う、導電部材104によって二つの単電池102が電気的に並列に接続した他の並列体とを電気的に直列に接続する。   As shown in FIG. 8, the bus bar 121 connects between the extended portions 104 b of the conductive members 104 adjacent in the stacking direction. Bus bar 121 is joined to extending portion 104b. The bus bar 121 includes one parallel body in which two unit cells 102 are electrically connected in parallel by the conductive member 104, and two unit cells 102 electrically in parallel by the conductive member 104, which are adjacent to each other in the stacking direction. The other connected parallel bodies are electrically connected in series.
組電池10の製造方法について述べる。   A method for manufacturing the assembled battery 10 will be described.
図9に示すように、組電池10の製造方法は、フレーム部材103に単電池102を載置する単電池載置工程と、単電池載置工程後、導電部材104の接続部104aに電極タブ102cを接続する電極タブ接続工程と、を有する。組電池10の製造方法は、電極タブ接続工程後、単電池102を積層する積層工程と、積層工程後、保持板110を締結する保持板締結工程と、保持板締結工程後、積層方向に隣り合う延在部104bにバスバ121を接続するバスバ接続工程と、を有する。   As shown in FIG. 9, the method of manufacturing the assembled battery 10 includes a cell mounting process for mounting the cell 102 on the frame member 103, and an electrode tab on the connecting portion 104a of the conductive member 104 after the cell mounting process. An electrode tab connecting step for connecting 102c. The manufacturing method of the assembled battery 10 includes a stacking step of stacking the cells 102 after the electrode tab connection step, a holding plate fastening step of fastening the holding plate 110 after the stacking step, and a holding plate fastening step, and then adjacent to the stacking direction. A bus bar connecting step of connecting the bus bar 121 to the extending portion 104b.
単電池載置工程では、単電池102はフレーム部材103に載置されるとともに接合される。単電池102はフレーム部材103の表裏面に載置されるとともに接合される。単電池102は、フレーム部材103に塗布された接着剤によってフレーム部材103に接合される。接着剤はフレーム部材103のうち載置される単電池102の本体の縁が接する箇所に塗布される。単電池102の本体の縁に接着剤が塗布されてもよい。   In the unit cell placing step, the unit cell 102 is placed on and joined to the frame member 103. The unit cell 102 is placed on and joined to the front and back surfaces of the frame member 103. The unit cell 102 is joined to the frame member 103 by an adhesive applied to the frame member 103. The adhesive is applied to the portion of the frame member 103 where the edge of the main body of the unit cell 102 is in contact. An adhesive may be applied to the edge of the main body of the unit cell 102.
電極タブ接続工程では、フレーム部材103の表裏面に載置されることによって積層されて隣り合う単電池102の電極タブ102cが、導電部材104の二つの接続部104aのそれぞれに接続される。導電部材104に接続される二つの電極タブ102cは同極である。電極タブ102cは、例えばレーザーを照射して局所的に溶融させることによって接続部104aに接合される。   In the electrode tab connection step, the electrode tabs 102c of the unit cells 102 that are stacked by being placed on the front and back surfaces of the frame member 103 are connected to the two connection portions 104a of the conductive member 104, respectively. The two electrode tabs 102c connected to the conductive member 104 have the same polarity. The electrode tab 102c is joined to the connection part 104a by, for example, locally irradiating it with a laser.
積層工程では、単電池102は、単電池102が載置されたフレーム部材103を積層することによって積層される。複数の単電池102は、導電部材104によって接続される二つの正極と導電部材104によって接続される二つの負極とが積層方向に隣り合うように積層される。単電池102はロアプレート112上に積層される。ロアプレート112のねじ穴115とフレーム部材103の孔103aとが位置合わせされる。フレーム部材103同士は孔103aの位置を合わせつつ積層される。   In the stacking step, the unit cells 102 are stacked by stacking the frame members 103 on which the unit cells 102 are placed. The plurality of single cells 102 are stacked such that two positive electrodes connected by the conductive member 104 and two negative electrodes connected by the conductive member 104 are adjacent to each other in the stacking direction. The unit cell 102 is stacked on the lower plate 112. The screw hole 115 of the lower plate 112 and the hole 103a of the frame member 103 are aligned. The frame members 103 are stacked while aligning the positions of the holes 103a.
所望の数の単電池102が積層されて電池モジュール群100が形成された後、電池モジュール群100の上にアッパープレート111が載せられる。アッパープレート111の孔114とフレーム部材103の孔103aとが位置合わせされる。   After the desired number of unit cells 102 are stacked to form the battery module group 100, the upper plate 111 is placed on the battery module group 100. The hole 114 of the upper plate 111 and the hole 103a of the frame member 103 are aligned.
保持板締結工程では、締結ボルト113が締め付けられることによって保持板110が締結される。締結ボルト113は、アッパープレート111の孔114およびフレーム部材103の孔103aに通されるとともにロアプレート112のねじ穴115と螺合する。   In the holding plate fastening step, the holding plate 110 is fastened by fastening the fastening bolt 113. The fastening bolt 113 is passed through the hole 114 of the upper plate 111 and the hole 103 a of the frame member 103 and is screwed into the screw hole 115 of the lower plate 112.
バスバ接続工程では、複数のバスバ121のそれぞれは、積層方向に隣り合う二つの延在部104bに対向するように配置されるとともに接合される。積層方向に並んだ導電部材104のそれぞれがバスバ保持プレート122の挿通孔124のそれぞれに挿通されることによって、延在部104bとバスバ121とが対向する。   In the bus bar connecting step, each of the plurality of bus bars 121 is disposed and joined so as to face two extending portions 104b adjacent in the stacking direction. Each of the conductive members 104 arranged in the stacking direction is inserted into each of the insertion holes 124 of the bus bar holding plate 122, so that the extending portion 104b and the bus bar 121 face each other.
延在部104bとバスバ121との接合前、バスバ保持プレート122は電池モジュール群100に接続される。バスバ保持プレート122は、挿通孔124に導電部材104および電極タブ102cが挿通されるとともに電池モジュール群100に押し当てられる。バスバ保持プレート122は、この状態で、例えばフレーム部材103との当接部位に超音波を印加して溶着させることによって、電池モジュール群100に接合される。   The bus bar holding plate 122 is connected to the battery module group 100 before the extension portion 104b and the bus bar 121 are joined. The bus bar holding plate 122 is pressed against the battery module group 100 while the conductive member 104 and the electrode tab 102 c are inserted through the insertion hole 124. In this state, the bus bar holding plate 122 is joined to the battery module group 100 by, for example, applying ultrasonic waves to a contact portion with the frame member 103 and welding them.
バスバ121とバスバ保持プレート122の鉤部123との間に積層方向に隙間が空いている。鉤部123は、この構成によって積層方向に揺動自在にバスバ121を保持する。このため、バスバ保持プレート122が電池モジュール群100に接続された後でも、バスバ121と延在部104bとを接続する前に、積層方向におけるバスバ121の位置を調整できる。   There is a gap in the stacking direction between the bus bar 121 and the flange 123 of the bus bar holding plate 122. By this configuration, the flange 123 holds the bus bar 121 so as to be swingable in the stacking direction. For this reason, even after the bus bar holding plate 122 is connected to the battery module group 100, the position of the bus bar 121 in the stacking direction can be adjusted before connecting the bus bar 121 and the extending portion 104b.
また、バスバ121と鉤部123との間にバスバ121の面に略直交する方向(電極タブ102cの延在方向)に隙間が空いている。鉤部123は、この構成によってバスバ121の面に略直交する方向に揺動自在にバスバ121を保持する。このため、バスバ保持プレート122が電池モジュール群100に接続された後でも、バスバ121と延在部104bとを接続する前に、バスバ121の面に略直交する方向におけるバスバ121の位置を調整できる。バスバ121は、例えばレーザーを照射して局所的に溶融させることによって延在部104bに接合される。   Further, a gap is left between the bus bar 121 and the flange 123 in a direction substantially orthogonal to the surface of the bus bar 121 (extending direction of the electrode tab 102c). With this configuration, the flange 123 holds the bus bar 121 so as to be swingable in a direction substantially orthogonal to the surface of the bus bar 121. For this reason, even after the bus bar holding plate 122 is connected to the battery module group 100, the position of the bus bar 121 in the direction substantially orthogonal to the surface of the bus bar 121 can be adjusted before connecting the bus bar 121 and the extending portion 104b. . The bus bar 121 is joined to the extending portion 104b by, for example, locally irradiating it with a laser to melt it.
以上の各工程の作業を、作業者が自ら手作業で行ってもよいし、産業用ロボット等が自動で行ってもよい。   The operations in the above steps may be performed manually by the operator, or may be performed automatically by an industrial robot or the like.
本実施形態の作用効果を述べる。   The effect of this embodiment is described.
組電池10および組電池10の製造方法においては、電極タブ102cは電極タブ102cと平行に延びる接続部104aに接続される。このため、電極タブ102cの延在方向への位置ずれがあっても、電極タブ102cと接続部104aとは、電極タブ102cの位置ずれに応じて延在方向の位置をずらして接続する。従って、組電池10および組電池10の製造方法は、電極タブ102cの延在方向の位置ずれに関わりなく確実に単電池102を接続できる。   In the assembled battery 10 and the method for manufacturing the assembled battery 10, the electrode tab 102c is connected to a connection portion 104a extending in parallel with the electrode tab 102c. Therefore, even if the electrode tab 102c is displaced in the extending direction, the electrode tab 102c and the connecting portion 104a are connected by shifting the position in the extending direction according to the displacement of the electrode tab 102c. Therefore, the assembled battery 10 and the manufacturing method of the assembled battery 10 can reliably connect the unit cells 102 regardless of the positional deviation in the extending direction of the electrode tab 102c.
また、組電池10および組電池10の製造方法においては、積層される単電池102同士は、積層方向に延びる延在部104bおよびこれに接続するバスバ121を介して接続される。このため、単電池102同士を接続するために電極タブ102cを曲げる必要がない。また、電極タブ102cの積層方向の位置ずれがあっても、電極タブ102cの位置ずれに応じて積層方向の位置をずらして接続する延在部104bおよびバスバ121を介して、電極タブ102c同士は接続する。従って、組電池10および組電池10の製造方法は、電極タブ102cの曲げ精度および積層方向の位置ずれに関わりなく確実に単電池102を接続できる。   Further, in the assembled battery 10 and the method for manufacturing the assembled battery 10, the stacked unit cells 102 are connected to each other via the extending portion 104b extending in the stacking direction and the bus bar 121 connected thereto. For this reason, it is not necessary to bend the electrode tab 102c in order to connect the cells 102 to each other. Further, even if the electrode tab 102c is misaligned in the stacking direction, the electrode tabs 102c are connected to each other via the extended portion 104b and the bus bar 121 that are connected by shifting the position in the stacking direction according to the position shift of the electrode tab 102c. Connecting. Therefore, the assembled battery 10 and the manufacturing method of the assembled battery 10 can reliably connect the unit cells 102 regardless of the bending accuracy of the electrode tab 102c and the positional deviation in the stacking direction.
また、電極タブ102cの位置ずれに関わりなく確実に単電池102を接続できるため、位置精度の要求を低く設定でき、従って生産性が向上する。   In addition, since the unit cells 102 can be reliably connected regardless of the positional deviation of the electrode tab 102c, a requirement for positional accuracy can be set low, and thus productivity is improved.
本実施形態と異なり、導電部材104およびバスバ121を用いず、電極タブ102cを積層方向に曲げるとともに重ね合わせて接合する場合、接合の際に電極タブ102c同士を重ね合わせたまま保持するクランプ治具が必要である。このため、単電池102のまわり、例えば積層方向に折り曲げられた電極タブ102c同士の合わせ面と単電池102の本体との間等に、クランプ治具を配置するためのスペースを設けなければならず、その結果、組電池10が大型化する虞がある。一方、本実施形態では、電極タブ102cは導電部材104およびバスバ121を介して接続されるため、このようなクランプ治具を用いる必要がなく、従って組電池10の小型化を図り得る。   Unlike the present embodiment, when the electrode tab 102c is bent and overlapped and joined without using the conductive member 104 and the bus bar 121, the clamp jig that holds the electrode tabs 102c while being overlapped at the time of joining. is necessary. For this reason, a space for arranging the clamp jig must be provided around the unit cell 102, for example, between the mating surface of the electrode tabs 102c bent in the stacking direction and the main body of the unit cell 102. As a result, the assembled battery 10 may be increased in size. On the other hand, in the present embodiment, since the electrode tab 102c is connected via the conductive member 104 and the bus bar 121, it is not necessary to use such a clamping jig, and thus the battery pack 10 can be downsized.
組電池10および組電池10の製造方法においては、フレーム部材103の表裏面に載置される単電池102の積層方向に隣り合う電極タブ102cは、延在部104bによって接続された二つの接続部104aのそれぞれに接続される。このため、積層方向に隣り合う二つの電極タブ102cの間に延在方向への相対的位置ずれがあっても、二つの電極タブ102cは、それぞれ、延在方向の位置をずらして接続部104aに接続し、また延在部104bを介して互いに接続する。従って、組電池10および組電池10の製造方法は、積層方向に隣り合う二つの単電池102を電極タブ102cの延在方向の位置ずれに関わりなく確実に接続できる。また、電極タブ102cの位置ずれに関わりなく確実に単電池102を接続できるため、位置精度の要求を低くでき、従って、二つの単電池102が積層されて電気的に接続したセルユニットを容易に形成できる。特に本実施形態では、二つの単電池102は導電部材104によって同極の電極タブ102cで接続されるため、並列体を容易に形成できる。   In the assembled battery 10 and the method for manufacturing the assembled battery 10, the electrode tabs 102c adjacent to each other in the stacking direction of the unit cells 102 placed on the front and back surfaces of the frame member 103 are connected by two extending portions 104b. Connected to each of 104a. For this reason, even if there is a relative displacement in the extending direction between the two electrode tabs 102c adjacent in the stacking direction, the two electrode tabs 102c are displaced from each other in the extending direction. And connected to each other via the extension 104b. Therefore, the assembled battery 10 and the manufacturing method of the assembled battery 10 can reliably connect two unit cells 102 adjacent in the stacking direction regardless of the positional deviation in the extending direction of the electrode tab 102c. In addition, since the unit cells 102 can be reliably connected regardless of the positional deviation of the electrode tab 102c, it is possible to reduce the requirement for positional accuracy. Therefore, a cell unit in which two unit cells 102 are stacked and electrically connected can be easily obtained. Can be formed. In particular, in this embodiment, since the two unit cells 102 are connected by the electrode tab 102c of the same polarity by the conductive member 104, a parallel body can be easily formed.
組電池10および組電池10の製造方法においては、単電池102がフレーム部材103に載置されるとともに、フレーム部材103に設けられた導電部材104に電極タブ102cが接続する。この構成によって、単電池102、そのなかでも特に外力からの影響を受けやすい電極タブ102cおよび単電池102の本体の縁、ならびに導電部材104は、剛性に優れるフレーム部材103によって外力から保護されるため、組立および搬送時の取り扱いが容易である。   In the assembled battery 10 and the manufacturing method of the assembled battery 10, the unit cell 102 is placed on the frame member 103, and the electrode tab 102 c is connected to the conductive member 104 provided on the frame member 103. With this configuration, the unit cell 102, particularly the electrode tab 102 c that is particularly susceptible to external force, the edge of the unit cell 102, and the conductive member 104 are protected from external force by the frame member 103 having excellent rigidity. Easy handling during assembly and transport.
組電池10および組電池10の製造方法においては、フレーム部材103の積層方向表裏面のそれぞれに単電池102が載置されるとともに接続される。このため、一つのフレーム部材103を積層すると二つの単電池102が一度に積層されるので、効率良く単電池102を積層できる。   In the assembled battery 10 and the method for manufacturing the assembled battery 10, the unit cells 102 are placed and connected to the front and back surfaces of the frame member 103 in the stacking direction. For this reason, when the single frame member 103 is stacked, the two unit cells 102 are stacked at a time, so that the unit cells 102 can be stacked efficiently.
<変形例1>
図10および図11に示すように、変形例1の組電池20は、フレーム部材203の載置面103bに凹部203aが設けられるとともに、導電部材204が凹部203aに嵌合する凸部204aを有する点で上記実施形態と異なる。他の構成および組電池20の製造方法については、変形例1は上記実施形態と略同様である。上記実施形態と共通の構成については図10および図11において同一の符号を付し、ここでの重複する説明を省略する。
<Modification 1>
As shown in FIGS. 10 and 11, the assembled battery 20 of Modification 1 has a recess 203 a on the mounting surface 103 b of the frame member 203 and a protrusion 204 a in which the conductive member 204 fits into the recess 203 a. This is different from the above-described embodiment. Regarding the other configuration and the method of manufacturing the assembled battery 20, the first modification is substantially the same as the above embodiment. The same reference numerals are used in FIGS. 10 and 11 for configurations common to the above-described embodiment, and redundant descriptions are omitted here.
凸部204aは凹部203aに引っ掛かる。このため、変形例1の組電池20および組電池20の製造方法は、上記実施形態の効果に加え、フレーム部材203からの導電部材204の脱落をより確実に防止できるという効果を奏する。   The convex portion 204a is caught by the concave portion 203a. For this reason, in addition to the effect of the said embodiment, the assembled battery 20 of the modification 1 and the manufacturing method of the assembled battery 20 have the effect that the drop-off | omission of the electrically-conductive member 204 from the frame member 203 can be prevented more reliably.
<変形例2>
図12に示すように、変形例2の組電池30の導電部材304は、互いに厚さの異なる接続部304aおよび延在部304bを有する。接続部304aは延在部304bより薄い。図12では延在部304bの厚さが誇張されて厚く記載されているが、延在部304bの厚さは変形例1の延在部104bと略同様である。他の構成および組電池30の製造方法については、変形例2は変形例1と略同様である。変形例1と共通の構成については図12において同一の符号を付し、ここでの重複する説明を省略する。
<Modification 2>
As shown in FIG. 12, the conductive member 304 of the assembled battery 30 of Modification 2 has a connection portion 304 a and an extension portion 304 b having different thicknesses. The connecting portion 304a is thinner than the extending portion 304b. In FIG. 12, the thickness of the extended portion 304b is exaggerated and described as being thick, but the thickness of the extended portion 304b is substantially the same as that of the extended portion 104b of the first modification. Regarding other configurations and the method of manufacturing the assembled battery 30, the second modification is substantially the same as the first modification. The same components as those in the first modification are denoted by the same reference numerals in FIG. 12, and redundant descriptions are omitted here.
正極の電極タブ102cは、例えば、厚さ0.2mm程度の厚さを有するアルミニウムの薄板によって形成される。負極の電極タブ102cは、例えば、厚さ0.2mm程度の厚さを有する銅の薄板によって形成される。このような厚さを有する電極タブ102cをレーザー溶接によって接合する場合、高い出力の溶接機を必要としない。このため、接続部304aが薄くてもレーザー光が接続部304aを貫通する虞が低い。   The positive electrode tab 102c is formed of, for example, an aluminum thin plate having a thickness of about 0.2 mm. The negative electrode tab 102c is formed of, for example, a thin copper plate having a thickness of about 0.2 mm. When the electrode tab 102c having such a thickness is joined by laser welding, a high-power welding machine is not required. For this reason, even if the connection part 304a is thin, there is little possibility that a laser beam will penetrate the connection part 304a.
接続部304aが延在部304bより薄く形成されるため、変形例2の組電池30および組電池30の製造方法は、変形例1の効果に加え、接続部304aを形成する材料、例えば銅の使用量削減による低コスト化および軽量化を図り得るという効果を奏する。   Since the connecting portion 304a is formed thinner than the extending portion 304b, the assembled battery 30 and the manufacturing method of the assembled battery 30 according to the modified example 2 are not limited to the effects of the modified example 1, and the material for forming the connecting portion 304a, for example, copper There is an effect that the cost can be reduced and the weight can be reduced by reducing the amount of use.
<変形例3>
図13に示すように、変形例3の組電池40は、バスバ421がボルト404aによって延在部404bに締結される点で変形例2と異なる。他の構成および組電池40の製造方法については、変形例3は変形例2と略同様である。変形例2と共通の構成については図13において同一の符号を付し、ここでの重複する説明を省略する。
<Modification 3>
As shown in FIG. 13, the assembled battery 40 of Modification 3 is different from Modification 2 in that the bus bar 421 is fastened to the extending portion 404b by a bolt 404a. The other configuration and the manufacturing method of the assembled battery 40 are substantially the same as the second modification. The same components as those of the second modification are denoted by the same reference numerals in FIG. 13, and redundant descriptions are omitted here.
バスバ421は、ボルト404aを挿通可能な孔を有する。導電部材404は、ボルト404aが螺合可能なねじ穴を延在部404bに有する。フレーム部材403は、ボルト404aの先端側が収まる凹部を有する。バスバ421に設けられたボルト404aが通る孔は、積層方向の大きさが相対的に大きい長穴形状を有する。このため、延在部404bに設けられたねじ穴の位置が積層方向にずれてもボルト404aを螺合できる。   The bus bar 421 has a hole through which the bolt 404a can be inserted. The conductive member 404 has a screw hole in the extending portion 404b into which the bolt 404a can be screwed. The frame member 403 has a recess in which the front end side of the bolt 404a is received. The hole through which the bolt 404a provided in the bus bar 421 has a long hole shape having a relatively large size in the stacking direction. For this reason, even if the position of the screw hole provided in the extending part 404b is shifted in the stacking direction, the bolt 404a can be screwed.
変形例3では、バスバ421はボルト404aによって延在部404bに締結されるため、バスバ421と延在部404bとを溶接することによって接続する高価な溶接機を導入する必要がない。従って、変形例3の組電池40および組電池40の製造方法は、変形例2の効果に加え、コストを削減できるという効果を奏する。   In the third modification, the bus bar 421 is fastened to the extending portion 404b by the bolt 404a. Therefore, it is not necessary to introduce an expensive welding machine that connects the bus bar 421 and the extending portion 404b by welding. Therefore, the assembled battery 40 and the manufacturing method of the assembled battery 40 according to the modified example 3 have an effect that the cost can be reduced in addition to the effect of the modified example 2.
本発明は、上記実施形態および変形例に限定されるものではなく、特許請求の範囲の範囲内で種々改変できる。   The present invention is not limited to the above-described embodiments and modifications, and various modifications can be made within the scope of the claims.
例えば、本発明は、図14に示すように単電池102がフレーム部材103の積層方向表裏面のうちの一方だけに載置される組電池50を含む。この例では、導電部材504は、一つの接続部504aを有する。延在部504bは接続部504aに接続するとともに積層方向に延びる。バスバ121は延在部504bに接続する。   For example, the present invention includes an assembled battery 50 in which the unit cell 102 is placed on only one of the front and back surfaces in the stacking direction of the frame member 103 as shown in FIG. In this example, the conductive member 504 has one connection portion 504a. The extending portion 504b is connected to the connecting portion 504a and extends in the stacking direction. The bus bar 121 is connected to the extending part 504b.
また、導電部材は、板状のものに限定されず、例えば図15の符号604に示すようにブロック状のものでもよい。導電部材604は、中実な直方体形状を有する。導電部材604における電極タブ102cと平行な一の面が接続部を構成し、この面と直交して積層方向に延びる他の面が延在部を構成する。この他の面にバスバ121は接続する。フレーム部材603は、導電部材604が取り付けられる切欠き部を有する。   Further, the conductive member is not limited to a plate-like member, and may be, for example, a block-like member as indicated by reference numeral 604 in FIG. The conductive member 604 has a solid rectangular parallelepiped shape. One surface of the conductive member 604 parallel to the electrode tab 102c constitutes a connecting portion, and the other surface perpendicular to this surface and extending in the stacking direction constitutes an extending portion. The bus bar 121 is connected to the other surface. The frame member 603 has a notch to which the conductive member 604 is attached.
また、本発明は、フレーム部材のない形態を含む。   Moreover, this invention includes the form without a frame member.
また、上記実施形態では、フレーム部材の積層方向表裏面に載置された単電池同士が電気的に並列に接続されたが、これに限定されず、フレーム部材の積層方向表裏面に載置された単電池同士が電気的に直列に接続された形態を本発明は含む。積層される複数の単電池を導電部材およびバスバによって電気的に接続してどのような回路を形成するかは、例えば組電池の出力や容量等を考慮して適宜設定できる。   Moreover, in the said embodiment, although the cell mounted in the lamination direction front and back of a frame member was electrically connected in parallel, it is not limited to this, It is mounted in the lamination direction front and back of a frame member. The present invention includes a configuration in which the single cells are electrically connected in series. A circuit to be formed by electrically connecting a plurality of unit cells to be stacked by a conductive member and a bus bar can be appropriately set in consideration of, for example, the output and capacity of the assembled battery.
また、上記実施形態の単電池では、単電池の矩形形状を有する本体の対向する二つの端辺のそれぞれから電極タブが導出されているが、これに限定されない。単電池は、単電池の矩形形状を有する本体の一つの端辺から正極および負極の二つの電極タブが導出された構成を有するものであってもよい。   Moreover, in the cell of the said embodiment, although the electrode tab is derived | led-out from each of the two opposing edges of the main body which has the rectangular shape of a cell, it is not limited to this. The unit cell may have a configuration in which two electrode tabs of a positive electrode and a negative electrode are derived from one end side of a main body having a rectangular shape of the unit cell.
10、20、30、40、50、60 組電池、
100 電池モジュール群、
101 電池モジュール、
102 単電池、
102a 発電要素、
102b 外装体、
102c 電極タブ、
103 フレーム部材、
103a 孔、
103b 載置面、
103c 外周面、
104 導電部材、
104a 接続部、
104b 延在部、
110 保持板、
111 アッパープレート、
112 ロアプレート、
113 締結ボルト、
114 孔、
115 ねじ穴、
120 サイドプレート、
121、421 バスバ、
122 バスバ保持プレート、
123 鉤部、
124 挿通孔、
203 フレーム部材、
203a 凹部、
204 導電部材、
204a 凸部、
304 導電部材、
304a 接続部、
304b 延在部、
403 フレーム部材、
404 導電部材、
404a ボルト、
404b 延在部、
504 導電部材、
504a 接続部、
504b 延在部、
603 フレーム部材、
604 導電部材。
10, 20, 30, 40, 50, 60 battery pack,
100 battery module group,
101 battery module,
102 cell,
102a power generation element,
102b exterior body,
102c electrode tab,
103 frame member,
103a hole,
103b mounting surface,
103c outer peripheral surface,
104 conductive member,
104a connection part,
104b extension,
110 holding plate,
111 upper plate,
112 Lower plate,
113 fastening bolts,
114 holes,
115 screw holes,
120 side plate,
121, 421 Bus bar,
122 bus bar holding plate,
123 Buttocks,
124 insertion hole,
203 frame member,
203a recess,
204 conductive member,
204a convex part,
304 conductive member,
304a connection part,
304b extension,
403 frame member,
404 conductive member,
404a bolt,
404b extension,
504 conductive member,
504a connection,
504b extension,
603 frame member,
604 Conductive member.

Claims (13)

  1. 外装体内部に発電要素を封止するとともに前記外装体内部から前記発電要素に接続された板状の電極タブを前記外装体外部に導出した扁平な単電池を複数積層して形成された組電池であって、
    前記単電池の前記電極タブと平行に延びて前記電極タブが接続する接続部と、当該接続部に接続するとともに前記電極タブの先端よりも外側から前記単電池の積層方向に延びる延在部とを備える導電部材と、
    前記積層方向に隣り合う前記導電部材の前記延在部間を接続するバスバと、を備える、組電池。
    An assembled battery formed by laminating a plurality of flat unit cells in which a power generation element is sealed inside an exterior body and plate-like electrode tabs connected to the power generation element from the interior of the exterior body are led out to the exterior body Because
    A connection portion extending in parallel with the electrode tab of the unit cell and connected to the electrode tab; and an extension portion connected to the connection portion and extending from the outside of the tip of the electrode tab in the stacking direction of the unit cell. A conductive member comprising:
    An assembled battery comprising: a bus bar that connects between the extending portions of the conductive members adjacent to each other in the stacking direction.
  2. 前記導電部材は、前記積層方向に隣り合う前記電極タブにそれぞれ接続する二つの前記接続部を備え、前記延在部は前記二つの接続部に接続している、請求項1に記載の組電池。   2. The assembled battery according to claim 1, wherein the conductive member includes two connection portions respectively connected to the electrode tabs adjacent to each other in the stacking direction, and the extension portion is connected to the two connection portions. .
  3. 前記単電池が載置されるフレーム部材を備え、
    当該フレーム部材は載置された前記単電池の前記電極タブに沿う載置面と、前記積層方向に沿う外周面とを備え、前記単電池は当該単電池が載置された前記フレーム部材を積層することによって積層され、
    前記導電部材は、前記接続部が前記フレーム部材の前記載置面に設けられるとともに、前記延在部が前記フレーム部材の前記外周面に設けられている、請求項1または請求項2に記載の組電池。
    A frame member on which the unit cell is placed;
    The frame member includes a mounting surface along the electrode tab of the unit cell mounted and an outer peripheral surface along the stacking direction, and the unit cell stacks the frame member on which the unit cell is mounted. Are stacked by
    3. The conductive member according to claim 1, wherein the conductive member is provided on the placement surface of the frame member, and the extending portion is provided on the outer peripheral surface of the frame member. Assembled battery.
  4. 前記単電池は前記フレーム部材の積層方向表裏面のそれぞれに載置され、
    前記導電部材は、前記フレーム部材の積層方向表裏面それぞれに設けられた二つの前記接続部と、前記フレーム部材の前記外周面に設けられて前記二つの前記接続部に接続する前記延在部と、を有し、前記フレーム部材の積層方向表裏面のそれぞれに載置された二つの前記単電池を電気的に接続している、請求項3に記載の組電池。
    The unit cell is placed on each of the front and back surfaces of the frame member in the stacking direction,
    The conductive member includes two connection portions provided on the front and back surfaces in the stacking direction of the frame member, and the extension portion provided on the outer peripheral surface of the frame member and connected to the two connection portions. 4. The assembled battery according to claim 3, wherein the two unit cells placed on the front and back surfaces in the stacking direction of the frame member are electrically connected.
  5. 前記導電部材は、前記二つの接続部がそれぞれ前記フレーム部材の積層方向表裏面に載置された二つの前記単電池それぞれの同極の前記電極タブに接続することによって前記二つの単電池を電気的に並列に接続して、並列体を形成している、請求項4に記載の組電池。   The conductive member electrically connects the two unit cells by connecting the two connection portions to the electrode tabs of the same polarity of the two unit cells respectively mounted on the front and back surfaces of the frame member in the stacking direction. The assembled battery according to claim 4, which is connected in parallel to form a parallel body.
  6. 前記フレーム部材の前記載置面に凹部が設けられるとともに、前記導電部材が前記凹部に嵌合する凸部を備える、請求項3〜請求項5のうちのいずれか1つに記載の組電池。   The assembled battery according to any one of claims 3 to 5, wherein a concave portion is provided on the mounting surface of the frame member, and the conductive member includes a convex portion that fits into the concave portion.
  7. 前記接続部および前記延在部は板形状を有し、前記接続部は前記延在部よりも薄い、請求項1〜請求項6のうちのいずれか1つに記載の組電池。   The assembled battery according to claim 1, wherein the connection part and the extension part have a plate shape, and the connection part is thinner than the extension part.
  8. 前記バスバは、ボルトによって前記導電部材の前記延在部に締結される、請求項1〜請求項7のうちのいずれか1つに記載の組電池。   The assembled battery according to any one of claims 1 to 7, wherein the bus bar is fastened to the extension portion of the conductive member by a bolt.
  9. 外装体内部に発電要素を封止するとともに前記外装体内部から前記発電要素に接続された板状の電極タブを前記外装体外部に導出した扁平な単電池を複数積層して形成される組電池の製造方法であって、
    前記単電池の前記電極タブと平行に延びる接続部と、当該接続部に接続するとともに前記電極タブの先端よりも外側から前記単電池の積層方向に延びる延在部と、を備える導電部材の前記接続部に対し、前記単電池の前記電極タブを接続する電極タブ接続工程と、
    前記電極タブ接続工程後、積層された前記単電池の積層方向に隣り合う前記導電部材の前記延在部間に配置されたバスバを、当該延在部に接続するバスバ接続工程と、を有する、組電池の製造方法。
    An assembled battery formed by laminating a plurality of flat unit cells in which a power generation element is sealed inside an exterior body and plate-like electrode tabs connected to the power generation element are led out from the exterior body to the exterior of the exterior body A manufacturing method of
    The conductive member comprising: a connection portion extending in parallel with the electrode tab of the unit cell; and an extension portion connected to the connection portion and extending from the outside of the tip of the electrode tab in the stacking direction of the unit cell. An electrode tab connection step for connecting the electrode tab of the unit cell to the connection portion;
    A bus bar connecting step of connecting the bus bar disposed between the extending portions of the conductive members adjacent to each other in the stacking direction of the stacked unit cells after the electrode tab connecting step; A method for producing an assembled battery.
  10. 前記導電部材は、平行な二つの前記接続部および当該二つの接続部に接続する前記延在部を備え、前記電極タブ接続工程において、積層されて隣り合う前記単電池の前記電極タブは、前記二つの接続部のそれぞれに接続される、請求項9に記載の組電池の製造方法。 It said conductive member comprises said extending portion connected to a row of two of the connections and the two connecting portions flat, in the electrode tab connection process, the said electrode tabs of the unit cells adjacent to each other are laminated, The method for manufacturing an assembled battery according to claim 9, wherein the method is connected to each of the two connection portions.
  11. 前記電極タブ接続工程前、前記単電池を、前記単電池とともに積層される、前記導電部材が設けられたフレーム部材に載置する単電池載置工程を有し、
    前記電極タブ接続工程において、前記電極タブは、当該電極タブに沿う前記フレーム部材の載置面に設けられた、前記導電部材の前記接続部に接続され、
    前記バスバ接続工程において、前記バスバは、積層された前記単電池の積層方向に沿う前記フレーム部材の外周面に設けられた、前記導電部材の前記延在部に接続される、請求項9または請求項10に記載の組電池の製造方法。
    Before the electrode tab connection step, the unit cell is stacked with the unit cell, and has a unit cell mounting step of mounting on the frame member provided with the conductive member,
    In the electrode tab connection step, the electrode tab is connected to the connection portion of the conductive member provided on the mounting surface of the frame member along the electrode tab,
    The said bus bar is connected to the said extension part of the said electrically-conductive member provided in the outer peripheral surface of the said frame member along the lamination direction of the said unit cell laminated | stacked in the said bus bar connection process. Item 11. A method for producing an assembled battery according to Item 10.
  12. 前記導電部材は、前記フレーム部材の積層方向表裏面それぞれに設けられた二つの前記接続部と、前記フレーム部材の前記外周面に設けられて前記二つの前記接続部に接続する前記延在部と、を有し、
    前記単電池載置工程において、前記単電池は、前記フレーム部材の表裏面のそれぞれに載置され、
    前記電極タブ接続工程において、前記フレーム部材の表裏面のそれぞれに載置された二つの前記単電池は、前記電極タブが前記導電部材の前記二つの接続部のそれぞれに接続されて前記導電部材によって電気的に接続される、請求項11に記載の組電池の製造方法。
    Said conductive member, said extending portion for connecting the two of the connecting portions provided in the respective lamination direction front and rear surfaces of the front SL frame member, the two of the connecting portions provided on the outer peripheral surface of said frame member And having
    In the unit cell placing step, the unit cell is placed on each of the front and back surfaces of the frame member,
    In the electrode tab connection step, the two unit cells placed on the front and back surfaces of the frame member are connected to the two connection portions of the conductive member by the electrode tab. The manufacturing method of the assembled battery of Claim 11 electrically connected.
  13. 前記電極タブ接続工程において、前記フレーム部材の積層方向表裏面に載置された二つの前記単電池それぞれの同極の前記電極タブが前記導電部材の前記二つの接続部に接続されることによって、前記二つの単電池が電気的に並列に接続して、並列体が形成される、請求項12に記載の組電池の製造方法。   In the electrode tab connection step, the electrode tabs of the same polarity of each of the two unit cells placed on the front and back surfaces of the frame member in the stacking direction are connected to the two connection portions of the conductive member, The method for manufacturing an assembled battery according to claim 12, wherein the two cells are electrically connected in parallel to form a parallel body.
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Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101773104B1 (en) * 2014-07-31 2017-08-30 주식회사 엘지화학 Battery module
CN105576298A (en) * 2014-10-13 2016-05-11 东莞乔登节能科技有限公司 Lithium battery core structure
KR102277561B1 (en) * 2014-12-30 2021-07-14 에이치엘그린파워 주식회사 Battery pack for prevention of combustion
US10020483B2 (en) * 2015-02-09 2018-07-10 Lg Chem, Ltd. Battery module and method of coupling first and second electrical terminals of first and second battery cells to a voltage sense member of an interconnect assembly
KR102077272B1 (en) * 2015-09-14 2020-02-13 주식회사 엘지화학 Battery module and protecting structure applied for the same
US10418602B2 (en) 2015-10-22 2019-09-17 Nissan Motor Co., Ltd. Battery pack
WO2017068707A1 (en) * 2015-10-22 2017-04-27 日産自動車株式会社 Production method and production device for battery pack
WO2017068703A1 (en) * 2015-10-22 2017-04-27 日産自動車株式会社 Assembled battery and assembled battery manufacturing method
EP3367462A4 (en) * 2015-10-22 2018-09-26 Nissan Motor Co., Ltd. Battery pack
KR20170050959A (en) * 2015-11-02 2017-05-11 삼성에스디아이 주식회사 Rechargeable battery module
JP6650326B2 (en) * 2016-04-01 2020-02-19 株式会社エンビジョンAescジャパン Battery pack and method of manufacturing battery pack
KR102051108B1 (en) * 2016-06-13 2019-12-02 주식회사 엘지화학 Battery module, battery pack comprising the battery module and vehicle comprising the battery pack
JP6659482B2 (en) * 2016-07-05 2020-03-04 株式会社エンビジョンAescジャパン Welding device and welding method
JP6762156B2 (en) * 2016-07-15 2020-09-30 株式会社エンビジョンAescジャパン Assembled battery and manufacturing method of assembled battery
JP6717954B2 (en) 2016-09-26 2020-07-08 株式会社エンビジョンAescジャパン Battery pack
EP3573138B1 (en) * 2017-01-20 2020-10-14 Envision AESC Japan Ltd. Assembled battery, bus bar holder used for assembled battery, and method for manufacturing assembled battery
US10680219B2 (en) 2017-03-07 2020-06-09 Envision Aesc Japan Ltd. Battery pack production method
KR102212449B1 (en) * 2017-05-22 2021-02-03 주식회사 엘지화학 Battery module and battery pack including the same
JP6832383B2 (en) * 2019-04-02 2021-02-24 積水化学工業株式会社 Power storage element module, power storage element unit, building and housing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3649213B2 (en) * 2002-07-30 2005-05-18 日産自動車株式会社 Module battery
JP3789439B2 (en) * 2003-03-03 2006-06-21 Necラミリオンエナジー株式会社 Film exterior laminated battery pack
JP4690013B2 (en) * 2004-10-29 2011-06-01 日本電気株式会社 Connection apparatus and electrical device assembly using the same
JP5046956B2 (en) * 2005-12-01 2012-10-10 日本電気株式会社 Method for manufacturing electrical device assembly
CN101877413B (en) * 2009-04-30 2013-10-30 比亚迪股份有限公司 Monomer battery and power battery pack containing same
JP2011198660A (en) * 2010-03-20 2011-10-06 Sanyo Electric Co Ltd Battery pack
US8673473B2 (en) * 2010-08-10 2014-03-18 GM Global Technology Operations LLC Integrated cooling fin and frame
WO2012081140A1 (en) * 2010-12-13 2012-06-21 パナソニック株式会社 Battery module and battery pack
US20120295150A1 (en) * 2011-05-17 2012-11-22 GM Global Technology Operations LLC Battery module and method of manufacturing the same

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