JP2016031895A - Power storage device - Google Patents

Power storage device Download PDF

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JP2016031895A
JP2016031895A JP2014155008A JP2014155008A JP2016031895A JP 2016031895 A JP2016031895 A JP 2016031895A JP 2014155008 A JP2014155008 A JP 2014155008A JP 2014155008 A JP2014155008 A JP 2014155008A JP 2016031895 A JP2016031895 A JP 2016031895A
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Prior art keywords
power storage
storage element
storage device
recess
termination member
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JP6363417B2 (en
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雄太 山本
Yuta Yamamoto
雄太 山本
元樹 星野
Motoki Hoshino
元樹 星野
政夫 川田
Masao Kawada
政夫 川田
町田　淳
Atsushi Machida
淳 町田
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Honda Motor Co Ltd
GS Yuasa Corp
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Honda Motor Co Ltd
GS Yuasa Corp
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Priority to JP2014155008A priority Critical patent/JP6363417B2/en
Priority to CN201510434339.7A priority patent/CN105322109B/en
Priority to US14/811,676 priority patent/US10283823B2/en
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    • 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

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Abstract

PROBLEM TO BE SOLVED: To provide a power storage device arranged so that water is less prone to collect in a concave part of a termination member.SOLUTION: A power storage device comprises at least one power storage element 1; and a termination member 30 placed by the side of the power storage element 1. The termination member 30 has a concave part 300 in at least one face of a first face facing the power storage element 1 and a second face on the side opposite to the first face; the concave part 300 opens horizontally or in a substantially horizontal direction. The concave part 300 is provided at a position corresponding to a center portion of a first wall of the power storage element 1. The concave part abuts on an outside contact part 24B of an external spacer 2B, and presses the first wall of the power storage element 1 through the external spacer 2B. The concave part 300 has, in its lower edge portion, a downward inclined plane toward outside (the side opposite to the power storage element 1 in X axial direction). The inclined plane is included in a peripheral face. The concave part 300 has: a pressing part 301 having an uprising face 301a extending along the power storage element 1; and a peripheral edge part 302 extending from the peripheral edge of the pressing part 301 toward a direction in which it cross the uprising face 301a and distances itself from the power storage element 1.SELECTED DRAWING: Figure 8

Description

本発明は、蓄電素子を備える蓄電装置に関する。   The present invention relates to a power storage device including a power storage element.

従来から、電池セルを備える車両用の電源装置が知られている（特許文献１参照）。具体的に、前記電源装置は、整列する複数の電池セルと、前記複数の電池セルを挟み込む一対のエンドプレートと、を備える。前記一対のエンドプレートのそれぞれには、当該蓄電装置を車両等に固定するための構成、及び該エンドプレートの強度を確保するためのリブ等が形成されることによって、該エンドプレートの表面に凹凸（即ち、凹部と凸部と）が形成される。   Conventionally, a power supply device for a vehicle including a battery cell is known (see Patent Document 1). Specifically, the power supply device includes a plurality of battery cells that are aligned, and a pair of end plates that sandwich the plurality of battery cells. Each of the pair of end plates is provided with a structure for fixing the power storage device to a vehicle or the like, and a rib or the like for securing the strength of the end plate, thereby forming irregularities on the surface of the end plate. (That is, a concave portion and a convex portion) are formed.

エンドプレートの表面に凹部が形成されると、電源装置の使用時等において、エンドプレートの表面で結露等した水が該凹部に溜まる場合がある。   If a recess is formed on the surface of the end plate, water that has condensed on the surface of the end plate may accumulate in the recess when the power supply device is used.

特開２０１０−１７０８７０号公報JP 2010-170870 A

そこで、本発明は、終端部材の凹部に水が溜まり難い蓄電装置を提供することを課題とする。   In view of the above, an object of the present invention is to provide a power storage device in which water does not easily accumulate in the recess of the termination member.

本発明に係る蓄電素子は、
少なくとも一つの蓄電素子と、
前記蓄電素子と並んで配置される終端部材と、を備え、
前記終端部材は、前記蓄電素子と対向する第一面と、該第一面と反対側の第二面との少なくとも一方の面に、水平若しくは略水平方向に開口する凹部を有し、
前記凹部は、該凹部の下縁部に、外方に向かって先下りの傾斜面を有する。 The electricity storage device according to the present invention is:
At least one power storage element;
A termination member arranged side by side with the power storage element,
The termination member has a recess opening in a horizontal or substantially horizontal direction on at least one of a first surface facing the power storage element and a second surface opposite to the first surface,
The concave portion has an inclined surface that descends toward the outside at the lower edge of the concave portion.

かかる構成によれば、凹部内で結露した水、及び終端部材の他の部位（凹部を除いた部位）で結露して凹部に入った水は、該凹部の下縁部から傾斜面によって外方に排出されるため、該凹部内に溜まり難い。   According to such a configuration, the water that has condensed in the recess and the water that has condensed in the other part of the termination member (the part excluding the recess) and entered the recess are outward from the lower edge of the recess by the inclined surface. Therefore, it is difficult to collect in the recess.

前記蓄電装置では、
前記凹部は、前記終端部材の第二面に設けられ、
前記終端部材は、該蓄電装置を固定する部材と当接する当接部を有し、
前記当接部は、前記固定する部材が取り付けられたときに、該固定する部材と、前記終端部材における前記凹部の開口縁との間に、隙間が形成される形状を有することが好ましい。 In the power storage device,
The recess is provided on the second surface of the termination member,
The termination member has a contact portion that contacts a member that fixes the power storage device,
It is preferable that the contact portion has a shape in which a gap is formed between the fixing member and the opening edge of the concave portion in the terminal member when the fixing member is attached.

かかる構成によれば、蓄電装置に前記固定する部材が取り付けられて当接部が固定する部材と当接しても、凹部の開口縁と固定する部材との間に隙間が形成されるため、凹部内の水（結露等のよって生じた水）が凹部に閉じ込められずに前記隙間から凹部の外方に排出される。   According to this configuration, even when the fixing member is attached to the power storage device and the contact portion contacts the member fixed, a gap is formed between the opening edge of the recess and the fixing member. The water in the inside (water generated by condensation or the like) is discharged from the gap to the outside of the recess without being confined in the recess.

この場合、例えば具体的には、
前記当接部は、前記凹部の開口縁よりも突出してもよい。 In this case, for example, specifically,
The contact portion may protrude beyond the opening edge of the recess.

かかる構成によれば、前記開口縁よりも突出した部位を設けるといった簡素な構成によって、蓄電装置に前記固定する部材が取り付けられたときに、凹部の開口縁と固定する部材との間に、開口縁からの当接部の突出量に応じた隙間を形成することができる。これにより、凹部内の水（結露等のよって生じた水）が凹部に閉じ込められずに前記隙間から凹部の外方に排出される。   According to this configuration, when the member to be fixed is attached to the power storage device, the opening between the opening edge of the recess and the member to be fixed is provided by a simple configuration in which a portion protruding from the opening edge is provided. A gap corresponding to the amount of protrusion of the contact portion from the edge can be formed. As a result, water in the recess (water generated by condensation or the like) is discharged from the gap to the outside of the recess without being confined in the recess.

前記当接部は、前記凹部内から突出してもよい。   The contact portion may protrude from the recess.

このように、当接部が凹部内から突出することで、終端部材において凹部の外側に該当接部を設けるためのスペースを確保しなくてもよく、これにより、終端部材の小型化を図ることができる。   Thus, the contact portion protrudes from the inside of the recess, so that it is not necessary to secure a space for providing the corresponding contact portion outside the recess in the termination member, thereby reducing the size of the termination member. Can do.

前記凹部は、前記蓄電素子に沿って拡がる起立面を有し、
前記傾斜面は、前記起立面の下縁から延びていてもよい。 The recess has an upstanding surface extending along the power storage element,
The inclined surface may extend from a lower edge of the standing surface.

かかる構成によれば、凹部内において結露等によって生じた水は、起立面を伝って該起立面の下縁、即ち、凹部の下縁部まで流れ易い。このため、凹部内において結露等によって生じた水をより確実に排水することができる。   According to this configuration, water generated by condensation or the like in the recesses easily flows along the standing surface to the lower edge of the standing surface, that is, the lower edge of the recess. For this reason, the water produced by dew condensation or the like in the recess can be drained more reliably.

また、本発明に係る蓄電素子は、
少なくとも一つの蓄電素子と、
前記蓄電素子と並んで配置される終端部材と、を備え、
前記終端部材は、前記蓄電素子と対向する第一面と、該第一面と反対側の第二面との少なくとも一方の面に開口する凹部を有し、
前記凹部の開口縁部の周方向における少なくとも一部の領域は、開口方向に向かうに連れて該開口が大きくなる方向に傾く傾斜面であってもよい。 Moreover, the electricity storage device according to the present invention is:
At least one power storage element;
A termination member arranged side by side with the power storage element,
The termination member has a recess opening in at least one surface of a first surface facing the power storage element and a second surface opposite to the first surface;
At least a partial region in the circumferential direction of the opening edge of the recess may be an inclined surface that is inclined in a direction in which the opening becomes larger toward the opening direction.

かかる構成によれば、凹部の開口方向が水平若しくは略水平方向となり、且つ前記傾斜面となる領域が下部になるような姿勢で蓄電装置を配置することにより、凹部内で結露した水、及び終端部材の他の部位（凹部を除いた部位）で結露して凹部に入った水が、該凹部の下部の傾斜面を伝って凹部から排出されるため、該凹部内に溜まり難くなる。   According to such a configuration, by arranging the power storage device in such a posture that the opening direction of the concave portion is horizontal or substantially horizontal and the region serving as the inclined surface is the lower portion, the water condensed in the concave portion and the terminal end Water that has condensed in other parts of the member (parts excluding the concave part) and has entered the concave part is discharged from the concave part along the inclined surface of the lower part of the concave part, so that it is difficult to accumulate in the concave part.

また、本発明に係る蓄電素子は、
少なくとも一つの蓄電素子と、
前記蓄電素子と並んで配置される終端部材と、を備え、
前記終端部材は、前記蓄電素子と対向する第一面から、該第一面と反対側の第二面まで貫通する貫通孔を規定する内周面を有し、
前記内周面の周方向における少なくとも一部の領域が、該貫通孔における一方の開口から他方の開口に向かうに連れて該貫通孔が大きくなる方向に傾く傾斜面であってもよい。 Moreover, the electricity storage device according to the present invention is:
At least one power storage element;
A termination member arranged side by side with the power storage element,
The termination member has an inner peripheral surface that defines a through hole penetrating from a first surface facing the power storage element to a second surface opposite to the first surface;
At least a partial region in the circumferential direction of the inner peripheral surface may be an inclined surface that is inclined in a direction in which the through hole becomes larger from one opening in the through hole toward the other opening.

かかる構成によれば、貫通方向が水平若しくは略水平方向となり、且つ内周面における前記傾斜面となる領域が下部になるような姿勢で蓄電装置を配置することにより、内周面において結露した水が、該内周面の下部の傾斜面を伝って貫通孔から排出されるため、該貫通孔内（内周面）に留まり難くなる。   According to such a configuration, water that has condensed on the inner peripheral surface can be obtained by disposing the power storage device in a posture in which the penetrating direction is horizontal or substantially horizontal and the region of the inner peripheral surface that is the inclined surface is the lower portion. However, since it is discharged | emitted from a through-hole along the inclined surface of the lower part of this internal peripheral surface, it becomes difficult to stay in this through-hole (internal peripheral surface).

以上より、本発明によれば、終端部材の凹部に水が溜まり難い蓄電装置を提供することができる。   As described above, according to the present invention, it is possible to provide a power storage device in which water does not easily accumulate in the concave portion of the termination member.

図１は、本発明の一実施形態に係る蓄電装置の斜視図である。FIG. 1 is a perspective view of a power storage device according to an embodiment of the present invention. 図２は、前記蓄電装置の構成を一部省略した状態の分解斜視図である。FIG. 2 is an exploded perspective view in a state where a part of the configuration of the power storage device is omitted. 図３は、前記蓄電装置の構成を一部省略した状態の分解斜視図である。FIG. 3 is an exploded perspective view in a state where a part of the configuration of the power storage device is omitted. 図４は、前記蓄電装置における蓄電素子の斜視図である。FIG. 4 is a perspective view of a power storage element in the power storage device. 図５は、前記蓄電素子の正面図である。FIG. 5 is a front view of the electricity storage element. 図６は、前記蓄電素子における終端部材の斜視図である。FIG. 6 is a perspective view of a termination member in the power storage element. 図７は、前記終端部材の斜視図である。FIG. 7 is a perspective view of the termination member. 図８は、前記蓄電装置の一部の断面図である。FIG. 8 is a partial cross-sectional view of the power storage device. 図９は、前記蓄電装置と電池パックとの接続状態を説明するための図である。FIG. 9 is a diagram for explaining a connection state between the power storage device and the battery pack. 図１０は、凹部から排出される水の流れを説明するための図である。FIG. 10 is a diagram for explaining the flow of water discharged from the recess. 図１１は、他実施形態に係る終端部材の一部の断面図である。FIG. 11 is a partial cross-sectional view of a termination member according to another embodiment. 図１２は、他実施形態に係る終端部材の一部の断面図である。FIG. 12 is a cross-sectional view of a part of a termination member according to another embodiment. 図１３は、他実施形態に係る終端部材を説明するための断面図である。FIG. 13 is a cross-sectional view for explaining a termination member according to another embodiment.

以下、本発明の一実施形態について、図１〜図９を参照しつつ説明する。尚、本実施形態の各構成部材（各構成要素）の名称は、本実施形態におけるものであり、背景技術における各構成部材（各構成要素）の名称と異なる場合がある。   Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In addition, the name of each component (each component) of this embodiment is a thing in this embodiment, and may differ from the name of each component (each component) in background art.

蓄電装置は、図１〜図３に示すように、蓄電素子１と、蓄電素子１と並んで配置される終端部材３０と、を備える。具体的に、蓄電装置は、蓄電素子１と、該蓄電素子１に隣り合うスペーサ２と、蓄電素子１を保持する保持部材３とを備える。保持部材３は、導電材料により成形される。これに伴い、蓄電装置は、蓄電素子１と保持部材３との間に配置されるインシュレータ４を備える。   As shown in FIGS. 1 to 3, the power storage device includes a power storage element 1 and a termination member 30 arranged side by side with the power storage element 1. Specifically, the power storage device includes a power storage element 1, a spacer 2 adjacent to the power storage element 1, and a holding member 3 that holds the power storage element 1. The holding member 3 is formed of a conductive material. Accordingly, the power storage device includes an insulator 4 disposed between the power storage element 1 and the holding member 3.

蓄電素子１は、図４及び図５に示すように、正極及び負極を含む電極体と、電極体を収容するケース１０と、ケース１０の外面上に配置された一対の外部端子１１とを備える。   As shown in FIGS. 4 and 5, the storage element 1 includes an electrode body including a positive electrode and a negative electrode, a case 10 that houses the electrode body, and a pair of external terminals 11 that are disposed on the outer surface of the case 10. .

ケース１０は、開口を有するケース本体１００と、ケース本体１００の開口を閉じる蓋板１０１であって、外面上に一対の外部端子１１が配置される蓋板１０１とを有する。   The case 10 includes a case main body 100 having an opening, and a cover plate 101 that closes the opening of the case main body 100, and a pair of external terminals 11 are disposed on the outer surface.

ケース本体１００は、閉塞部１００ａと（図５参照）、該閉塞部１００ａを取り囲むように、該閉塞部１００ａの周縁に接続された筒状の胴部１００ｂとを備える。   The case main body 100 includes a closing part 100a (see FIG. 5) and a cylindrical body part 100b connected to the periphery of the closing part 100a so as to surround the closing part 100a.

胴部１００ｂは、間隔をあけて互いに対向する一対の第一壁１００ｃと、一対の第一壁１００ｃを挟んで互いに対向する一対の第二壁１００ｄとを備える。   The trunk portion 100b includes a pair of first walls 100c that face each other with a space therebetween, and a pair of second walls 100d that face each other across the pair of first walls 100c.

第一壁１００ｃ及び第二壁１００ｄのそれぞれは、矩形状である。即ち、第一壁１００ｃ及び第二壁１００ｄのそれぞれの表面は、四角形状の平坦面である。第一壁１００ｃ及び第二壁１００ｄは、互いの端縁を突き合わせた状態で配置される。この隣り合う第一壁１００ｃ及び第二壁１００ｄの端縁同士は、全長に亘って接続される。これにより、胴部１００ｂは、角筒状に形成される。胴部１００ｂの一端は、板状の閉塞部１００ａによって閉塞されている。これに対し、胴部１００ｂの他端は、開口している。この胴部１００ｂの他端の開口は、蓋板１０１によって閉塞される。   Each of the first wall 100c and the second wall 100d has a rectangular shape. That is, each surface of the first wall 100c and the second wall 100d is a rectangular flat surface. The first wall 100c and the second wall 100d are arranged in a state in which the edges of each other are abutted. The edges of the adjacent first wall 100c and second wall 100d are connected over the entire length. Thereby, the trunk | drum 100b is formed in square tube shape. One end of the trunk portion 100b is closed by a plate-like closing portion 100a. On the other hand, the other end of the trunk | drum 100b is opening. The opening at the other end of the body portion 100 b is closed by the lid plate 101.

本実施形態の蓄電素子１では、第一壁１００ｃの表面積が、第二壁１００ｄの表面積よりも広い。このため、胴部１００ｂは、扁平な角筒状である。   In the electricity storage device 1 of the present embodiment, the surface area of the first wall 100c is larger than the surface area of the second wall 100d. For this reason, the trunk | drum 100b is a flat square tube shape.

本実施形態に係る蓄電装置は、図１に示すように、複数の蓄電素子１を備える。複数の蓄電素子１のそれぞれは、一方向に整列する。複数の蓄電素子１のそれぞれは、ケース１０の第一壁１００ｃを一方向に向けて整列している。蓄電装置は、隣り合う二つの蓄電素子１の外部端子１１同士を電気的に接続するバスバー（図示しない）を備える。尚、以下の説明において、便宜上、蓄電素子１の整列する方向（第一方向）をＸ軸方向という。また、三軸が互いに直交する座標系（直交座標系）において、蓄電素子１の整列する方向（Ｘ軸方向）と直交する二方向のうちの一つ方向（第二方向）をＹ軸方向といい、残りの一つの方向（第三方向）をＺ軸方向ということとする。これに伴い、各図面には、Ｘ軸方向、Ｙ軸方向、及びＺ軸方向のそれぞれに対応する直交三軸（座標軸）が補助的に図示されている。   The power storage device according to this embodiment includes a plurality of power storage elements 1 as shown in FIG. Each of the plurality of power storage elements 1 is aligned in one direction. Each of the plurality of power storage elements 1 is aligned with the first wall 100c of the case 10 facing in one direction. The power storage device includes a bus bar (not shown) that electrically connects the external terminals 11 of two adjacent power storage elements 1. In the following description, for convenience, the direction (first direction) in which the power storage elements 1 are aligned is referred to as the X-axis direction. In a coordinate system (orthogonal coordinate system) in which the three axes are orthogonal to each other, one direction (second direction) of two directions orthogonal to the direction in which the storage elements 1 are aligned (X-axis direction) is defined as the Y-axis direction. The remaining one direction (third direction) is called the Z-axis direction. Accordingly, in each drawing, three orthogonal axes (coordinate axes) corresponding to the X-axis direction, the Y-axis direction, and the Z-axis direction are supplementarily illustrated.

スペーサ２は、絶縁性を有する。スペーサ２は、蓄電素子１のケース１０（詳しくは、胴部１００ｂの第一壁１００ｃ）と隣り合うベースと、該ベースに隣り合う蓄電素子１の位置ずれを防止する規制部とを有する。   The spacer 2 has an insulating property. The spacer 2 includes a base adjacent to the case 10 of the power storage element 1 (specifically, the first wall 100c of the body part 100b) and a restricting portion that prevents displacement of the power storage element 1 adjacent to the base.

より具体的に説明する。蓄電装置は、上述のように、複数の蓄電素子１を備える。これに伴い、蓄電装置は、図２及び図３に示すように、二種類のスペーサ２（２Ａ，２Ｂ）を備える。即ち、蓄電装置は、二つの蓄電素子１間に配置されるスペーサ（以下、内部スペーサという。）２Ａと、複数の蓄電素子１のうちの最も端にある蓄電素子１に隣り合うスペーサ（以下、外部スペーサという。）２Ｂとを備える。   This will be described more specifically. The power storage device includes a plurality of power storage elements 1 as described above. Accordingly, the power storage device includes two types of spacers 2 (2A and 2B) as shown in FIGS. That is, the power storage device includes a spacer (hereinafter referred to as an internal spacer) 2A disposed between two power storage elements 1 and a spacer (hereinafter referred to as a power storage element 1 adjacent to the end of the plurality of power storage elements 1). 2B).

内部スペーサ２Ａは、蓄電素子１（詳しくは、ケース本体１００の第一壁１００ｃ）に隣り合うベース２０Ａと、該ベース２０Ａに隣り合う二つの蓄電素子１の位置ずれを防止する規制部２１Ａとを有する。内部スペーサ２Ａは、ベース２０Ａから突出した弁カバー部２２Ａであって、蓄電素子１の蓋板１０１（詳しくは、ガス排出弁１０１ａ）上に配置される弁カバー部２２Ａを有する。   The internal spacer 2A includes a base 20A adjacent to the electricity storage element 1 (specifically, the first wall 100c of the case body 100) and a restricting portion 21A that prevents the displacement of the two electricity storage elements 1 adjacent to the base 20A. Have. The inner spacer 2A is a valve cover portion 22A protruding from the base 20A, and has a valve cover portion 22A disposed on the cover plate 101 (specifically, the gas discharge valve 101a) of the electricity storage element 1.

内部スペーサ２Ａのベース２０Ａは、二つの蓄電素子１に挟み込まれる。この内部スペーサ２Ａのベース２０Ａは、二つの蓄電素子１のうちの一方の蓄電素子１と対向する第一面と、該第一面とは反対側の第二面であって、二つの蓄電素子１のうちの他方の蓄電素子１と対向する第二面とを有する。本実施形態における内部スペーサ２Ａのベース２０Ａは、略矩形状の板状の部位である。この内部スペーサ２Ａのベース２０Ａは、蓄電素子１の第一壁１００ｃと略同等の大きさである。   The base 20 </ b> A of the inner spacer 2 </ b> A is sandwiched between the two power storage elements 1. The base 20A of the inner spacer 2A includes a first surface facing one of the two power storage elements 1 and a second surface opposite to the first surface, and the two power storage elements 1 has a second surface facing the other power storage element 1. The base 20A of the inner spacer 2A in the present embodiment is a substantially rectangular plate-shaped part. The base 20 </ b> A of the inner spacer 2 </ b> A is approximately the same size as the first wall 100 c of the electricity storage device 1.

本実施形態に係る蓄電装置において、内部スペーサ２Ａのベース２０Ａの第一面と蓄電素子１との間、及び内部スペーサ２Ａのベース２０Ａの第二面と蓄電素子１との間の少なくとも何れか一方には、流体（冷却用の流体）を通過させるための通風路が形成される。   In the power storage device according to the present embodiment, at least one of the space between the first surface of the base 20A of the inner spacer 2A and the power storage element 1 and between the second surface of the base 20A of the inner spacer 2A and the power storage element 1. Is formed with an air passage for allowing fluid (cooling fluid) to pass therethrough.

本実施形態の内部スペーサ２Ａのベース２０Ａにおける断面は、矩形波形状である。より具体的に説明する。内部スペーサ２Ａのベース２０Ａは、隣り合う二つの蓄電素子１のうちの一方の蓄電素子１のみに当接する第一当接部２００Ａと、隣り合う二つの蓄電素子１のうちの他方の蓄電素子１のみに当接する第二当接部２００Ｂとを有する。また、内部スペーサ２Ａのベース２０Ａは、第一当接部２００Ａと第二当接部２００Ｂとを繋げる連接部２００Ｃを有する。第一当接部２００Ａは、Ｙ軸方向に長い。また、第二当接部２００Ｂも、Ｙ軸方向に長い。   The cross section of the base 20A of the inner spacer 2A of the present embodiment has a rectangular wave shape. This will be described more specifically. The base 20 </ b> A of the inner spacer 2 </ b> A includes a first contact portion 200 </ b> A that contacts only one of the two adjacent power storage elements 1 and the other power storage element 1 of the two adjacent power storage elements 1. 2nd contact part 200B which contacts only. Further, the base 20A of the inner spacer 2A has a connecting part 200C that connects the first contact part 200A and the second contact part 200B. The first contact portion 200A is long in the Y-axis direction. The second contact portion 200B is also long in the Y-axis direction.

内部スペーサ２Ａのベース２０Ａは、複数の第一当接部２００Ａと、複数の第二当接部２００Ｂとを有する。各第一当接部２００Ａと各第二当接部２００Ｂとは、Ｚ軸方向において交互に配置される。   The base 20A of the inner spacer 2A has a plurality of first contact portions 200A and a plurality of second contact portions 200B. The first contact portions 200A and the second contact portions 200B are alternately arranged in the Z-axis direction.

これにより、蓄電装置では、第一当接部２００Ａにおける蓄電素子１と当接する面とは反対側の面と、第一当接部２００Ａに繋がる一対の連接部２００Ｃとによって、通風路が形成される。また、蓄電装置では、第二当接部２００Ｂにおける蓄電素子１と当接する面とは反対側の面と、第二当接部２００Ｂに繋がる一対の連接部２００Ｃとによって、通風路が形成される。このように、蓄電装置では、内部スペーサ２Ａのベース２０Ａの第一面と蓄電素子１との間、及び内部スペーサ２Ａのベース２０Ａの第二面と蓄電素子１との間のそれぞれに、通風路が形成される。   Thus, in the power storage device, a ventilation path is formed by the surface of the first contact portion 200A opposite to the surface that contacts the power storage element 1 and the pair of connection portions 200C connected to the first contact portion 200A. The In the power storage device, a ventilation path is formed by the surface of the second contact portion 200B opposite to the surface that contacts the power storage element 1 and the pair of connecting portions 200C connected to the second contact portion 200B. . As described above, in the power storage device, the ventilation path is provided between the first surface of the base 20A of the inner spacer 2A and the power storage element 1, and between the second surface of the base 20A of the inner spacer 2A and the power storage element 1, respectively. Is formed.

規制部２１Ａは、内部スペーサ２Ａと隣り合う二つの蓄電素子１の相対移動を規制する。具体的に、規制部２１Ａは、内部スペーサ２Ａのベース２０Ａの第一面に隣り合う蓄電素子１と、内部スペーサ２Ａのベース２０Ａの第二面に隣り合う蓄電素子１とに向かってベース２０Ａから延びる。   The restricting portion 21 </ b> A restricts relative movement of the two power storage elements 1 adjacent to the inner spacer 2 </ b> A. Specifically, the restricting portion 21A extends from the base 20A toward the power storage element 1 adjacent to the first surface of the base 20A of the inner spacer 2A and the power storage element 1 adjacent to the second surface of the base 20A of the inner spacer 2A. Extend.

外部スペーサ２Ｂは、蓄電素子１（ケース本体１００の第一壁１００ｃ）に対向する第一面及び該第一面とは反対側の第二面を有するベース（以下、ベースという）２０Ｂと、該ベース２０Ｂに隣り合う蓄電素子１の位置を決定する規制部（以下、規制部という）２１Ｂとを有する。   The external spacer 2B includes a base (hereinafter referred to as a base) 20B having a first surface facing the power storage element 1 (the first wall 100c of the case body 100) and a second surface opposite to the first surface, And a restricting portion (hereinafter referred to as a restricting portion) 21B that determines the position of the power storage element 1 adjacent to the base 20B.

図２に示すように、外部スペーサ２Ｂのベース２０Ｂと、保持部材３の後述する終端部材３０とが対向する。即ち、外部スペーサ２Ｂは、Ｘ軸方向に整列する複数の蓄電素子１のうちの最も外側の蓄電素子１と、終端部材３０との間に配置される。外部スペーサ２Ｂは、図３に示すように、ベース２０Ｂに対する終端部材３０の位置を決定するための嵌合部２３Ｂであって、ベース２０Ｂの第二面に形成される嵌合部２３Ｂを有する。また、外部スペーサ２Ｂは、ベース２０Ｂに対する終端部材３０の位置ずれを防ぐための位置決部２２Ｂであって、ベース２０Ｂの第二面から突出した位置決部２２Ｂを有する。   As shown in FIG. 2, the base 20 </ b> B of the outer spacer 2 </ b> B and a termination member 30 (described later) of the holding member 3 face each other. That is, the outer spacer 2 </ b> B is disposed between the outermost power storage element 1 among the plurality of power storage elements 1 aligned in the X-axis direction and the termination member 30. As shown in FIG. 3, the outer spacer 2B is a fitting portion 23B for determining the position of the termination member 30 with respect to the base 20B, and has a fitting portion 23B formed on the second surface of the base 20B. Further, the outer spacer 2B is a positioning portion 22B for preventing the displacement of the termination member 30 with respect to the base 20B, and has a positioning portion 22B protruding from the second surface of the base 20B.

外部スペーサ２Ｂは、ベース２０Ｂから終端部材３０に向けて突出する第一突出部２４Ｂであって、終端部材３０に当接する第一突出部（以下、外部接触部という）２４Ｂを有する。本実施形態の外部スペーサ２Ｂは、ベース２０Ｂから蓄電素子１に向けて突出する第二突出部２０１Ｂであって、該蓄電素子１に当接する第二突出部（以下、内部接触部という）２０１Ｂも、有する。   The external spacer 2 </ b> B is a first protrusion 24 </ b> B that protrudes from the base 20 </ b> B toward the terminal member 30, and has a first protrusion (hereinafter referred to as an external contact part) 24 </ b> B that contacts the terminal member 30. The external spacer 2B of the present embodiment is a second protrusion 201B that protrudes from the base 20B toward the power storage element 1, and a second protrusion (hereinafter referred to as an internal contact part) 201B that contacts the power storage element 1 is also included. Have.

外部スペーサ２Ｂのベース２０Ｂは、Ｙ−Ｚ平面（Ｙ軸方向とＺ軸方向とを含む平面）方向に拡がっている。即ち、ベース２０Ｂは、板状の部位である。外部スペーサ２Ｂのベース２０Ｂは、略矩形状である。この外部スペーサ２Ｂのベース２０Ｂは、蓄電素子１の第一壁１００ｃと略同等の大きさである。   The base 20B of the outer spacer 2B extends in the YZ plane (a plane including the Y-axis direction and the Z-axis direction). That is, the base 20B is a plate-shaped part. The base 20B of the outer spacer 2B has a substantially rectangular shape. The base 20 </ b> B of the external spacer 2 </ b> B is approximately the same size as the first wall 100 c of the electricity storage device 1.

本実施形態において、外部接触部２４Ｂは、Ｙ軸方向に延びる突条である。外部接触部２４Ｂは、複数設けられる。複数の外部接触部２４Ｂのそれぞれは、Ｚ軸方向に間隔をおいて互いに平行に配置される。   In the present embodiment, the external contact portion 24B is a protrusion that extends in the Y-axis direction. A plurality of external contact portions 24B are provided. Each of the plurality of external contact portions 24B is arranged in parallel to each other with an interval in the Z-axis direction.

本実施形態の終端部材３０において、連結部材３１の固定部３１３が、該終端部材３０の四隅のそれぞれに連結される。そして、複数の外部接触部２４Ｂは、ベース２０Ｂの略全域を対象に配置される。   In the termination member 30 of the present embodiment, the fixing portion 313 of the coupling member 31 is coupled to each of the four corners of the termination member 30. And the some external contact part 24B is arrange | positioned for the substantially whole region of the base 20B.

本実施形態において、外部スペーサ２Ｂのベース２０Ｂの第一面と蓄電素子１との間には、流体を通過させるための通風路が形成される。   In the present embodiment, an air passage for allowing fluid to pass is formed between the first surface of the base 20B of the external spacer 2B and the power storage element 1.

より具体的に説明する。外部スペーサ２Ｂは、上述のように、ベース２０から蓄電素子１に向けて突出する内部接触部２０１Ｂであって、該蓄電素子１に当接する内部接触部２０１Ｂを有する。即ち、外部スペーサ２Ｂは、ベース２０Ｂの第一面から蓄電素子１のケース１０（詳しくは、ケース本体１００の第一壁１００ｃ）に向かって延びる内部接触部２０１Ｂを有する。   This will be described more specifically. As described above, the external spacer 2 </ b> B is the internal contact portion 201 </ b> B that protrudes from the base 20 toward the power storage device 1, and has the internal contact portion 201 </ b> B that contacts the power storage device 1. That is, the external spacer 2B has an internal contact portion 201B that extends from the first surface of the base 20B toward the case 10 of the power storage device 1 (specifically, the first wall 100c of the case body 100).

内部接触部２０１Ｂは、Ｙ軸方向に長い。本実施形態に係る外部スペーサ２Ｂは、複数の内部接触部２０１Ｂを有する。複数の内部接触部２０１Ｂのそれぞれは、Ｚ軸方向（長手方向と直交する方向）に互いに間隔をあけて配置される。これにより、外部スペーサ２Ｂのベース２０Ｂと蓄電素子１との間に、複数の通風路（採番しない）が形成される。   The internal contact portion 201B is long in the Y-axis direction. The external spacer 2B according to the present embodiment has a plurality of internal contact portions 201B. Each of the plurality of internal contact portions 201B is disposed with a space therebetween in the Z-axis direction (direction orthogonal to the longitudinal direction). Thereby, a plurality of ventilation paths (not numbered) are formed between the base 20B of the external spacer 2B and the power storage element 1.

内部接触部２０１Ｂのそれぞれは、外部接触部２４ＢとＸ軸方向に重なる位置に配置されている。本実施形態の内部接触部２０１Ｂは、該内部接触部２０１Ｂと対応する（即ち、内部接触部２０１ＢとＸ軸方向に重なる）外部接触部２４Ｂのそれぞれと同方向に延びる突条である。   Each of the internal contact portions 201B is disposed at a position overlapping the external contact portion 24B in the X-axis direction. The internal contact portion 201B of the present embodiment is a ridge extending in the same direction as each of the external contact portions 24B corresponding to the internal contact portion 201B (that is, overlapping the internal contact portion 201B and the X-axis direction).

複数の内部接触部２０１Ｂは、蓄電素子１と外部スペーサ２Ｂのベース２０Ｂとの間隔を一定に保ち、ベース２０Ｂと蓄電素子１との間にＹ軸方向に貫通した複数の通風路（採番しない）を形成する。   The plurality of internal contact portions 201B maintain a constant distance between the power storage element 1 and the base 20B of the external spacer 2B, and a plurality of ventilation paths (not numbered) that penetrate between the base 20B and the power storage element 1 in the Y-axis direction. ).

外部接触部２４Ｂの突出方向（Ｘ軸方向）の長さは、内部接触部２０１Ｂの突出方向（Ｘ軸方向）の長さより短い。即ち、内部接触部２０１Ｂのベース２０Ｂからの突出長さは、外部接触部２４Ｂのベース２０Ｂからの突出長さよりも長い。   The length of the external contact portion 24B in the protruding direction (X-axis direction) is shorter than the length of the internal contact portion 201B in the protruding direction (X-axis direction). That is, the protruding length of the inner contact portion 201B from the base 20B is longer than the protruding length of the outer contact portion 24B from the base 20B.

外部スペーサ２Ｂの規制部２１Ｂは、外部スペーサ２Ｂの第一面に隣り合う蓄電素子１の相対移動を規制すべく、前記蓄電素子１に向かって延びる。   The restricting portion 21B of the outer spacer 2B extends toward the electric storage element 1 so as to restrict the relative movement of the electric storage element 1 adjacent to the first surface of the outer spacer 2B.

位置決部２２Ｂは、ベース２０Ｂの外周端部から延出する複数の片によって形成される。   The positioning portion 22B is formed by a plurality of pieces extending from the outer peripheral end of the base 20B.

位置決部２２Ｂ（複数の片）は、終端部材３０を包囲することにより、外部スペーサ２Ｂに対して終端部材３０を位置決めする。   The positioning portion 22B (a plurality of pieces) positions the termination member 30 with respect to the outer spacer 2B by surrounding the termination member 30.

嵌合部２３Ｂは、ベース２０Ｂから終端部材３０に向けて突出している。より具体的に説明する。本実施形態において、嵌合部２３Ｂは、軸状に形成され、ベース２０Ｂの第二面から突出している。嵌合部２３Ｂは、終端部材３０の被嵌合部に嵌入可能に形成される。嵌合部２３Ｂは、先端から基端（ベース２０Ｂ）に向けて穿設されたネジ穴（採番しない）を有する。   The fitting portion 23B protrudes from the base 20B toward the terminal member 30. This will be described more specifically. In the present embodiment, the fitting portion 23B is formed in a shaft shape and protrudes from the second surface of the base 20B. The fitting portion 23 </ b> B is formed so as to be fitted into the fitted portion of the termination member 30. The fitting portion 23B has a screw hole (not numbered) drilled from the distal end toward the proximal end (base 20B).

上述のように、外部接触部２４Ｂは、ベース２０Ｂから終端部材３０に向けて突出し、終端部材３０に当接している。そのため、蓄電装置では、外部スペーサ２Ｂと、終端部材３０との間に隙間が形成されている。   As described above, the external contact portion 24 </ b> B protrudes from the base 20 </ b> B toward the termination member 30 and is in contact with the termination member 30. Therefore, in the power storage device, a gap is formed between the external spacer 2 </ b> B and the termination member 30.

本実施形態に係る外部スペーサ２Ｂは、蓄電素子１を介して内部スペーサと隣り合うように配置される。外部スペーサ２Ｂは、複数の蓄電素子１のうちの最も端にある蓄電素子１に隣り合う。即ち、外部スペーサ２Ｂは、整列する複数の蓄電素子１を挟み込むように一対設けられる。   The outer spacer 2 </ b> B according to the present embodiment is arranged so as to be adjacent to the inner spacer via the power storage element 1. The outer spacer 2 </ b> B is adjacent to the power storage element 1 at the end of the plurality of power storage elements 1. That is, a pair of external spacers 2B are provided so as to sandwich a plurality of electric storage elements 1 to be aligned.

一対の外部スペーサ２Ｂのそれぞれの第一面は、上述のように、蓄電素子１のケース本体１００と対向する。そのため、一対の外部スペーサ２Ｂのそれぞれは、互いのベース２０Ｂの第一面同士が向かい合うように配置されている。従って、蓄電装置において、一対の外部スペーサ２Ｂのそれぞれは、複数の蓄電素子１が整列する方向（Ｘ軸方向）において互いに対称となるように配置されている。   Each first surface of the pair of external spacers 2B faces the case body 100 of the electricity storage device 1 as described above. Therefore, each of the pair of external spacers 2B is disposed so that the first surfaces of the bases 20B face each other. Therefore, in the power storage device, each of the pair of external spacers 2B is disposed so as to be symmetrical with each other in the direction in which the plurality of power storage elements 1 are aligned (X-axis direction).

保持部材３は、蓄電素子１と並んで配置される終端部材３０を有する。本実施形態の保持部材３は、図１に示すように、複数の蓄電素子１と複数のスペーサ２をひとまとめに保持する（挟み込む）一対の終端部材３０を有する。即ち、保持部材３は、各外部スペーサ２Ｂと隣り合う位置のそれぞれに配置される一対の終端部材３０を有する。また、保持部材３は、一対の終端部材３０を互いに接続（連結）する連結部材３１を備える。この保持部材３は、金属製である。   The holding member 3 includes a termination member 30 that is arranged side by side with the power storage element 1. As shown in FIG. 1, the holding member 3 of the present embodiment includes a pair of terminal members 30 that hold (pinch) the plurality of power storage elements 1 and the plurality of spacers 2 together. That is, the holding member 3 has a pair of termination members 30 that are arranged at positions adjacent to the outer spacers 2B. The holding member 3 includes a connecting member 31 that connects (connects) the pair of terminal members 30 to each other. The holding member 3 is made of metal.

一対の終端部材３０のそれぞれは、外部スペーサ２Ｂと対向する第一面と、該第一面とは反対側の第二面とを有する。一対の終端部材３０のそれぞれは、図１，図６〜図８に示すように、第二面において、Ｘ軸方向（図１では水平若しくは略水平方向）に開口する凹部３００を有する。また、本実施形態の終端部材３０は、蓄電装置を収容するケース（図示しない）と当接する当接部３０５を有する。本実施形態の終端部材３０は、金属板を成形することによって形成される。即ち、終端部材３０は、金属板の成形品である。この終端部材３０は、Ｘ軸方向視において、蓄電素子１と対応する形状（輪郭形状）を有する。   Each of the pair of termination members 30 has a first surface facing the outer spacer 2B and a second surface opposite to the first surface. As shown in FIGS. 1 and 6 to 8, each of the pair of termination members 30 has a recess 300 that opens in the X-axis direction (horizontal or substantially horizontal direction in FIG. 1) on the second surface. Moreover, the termination | terminus member 30 of this embodiment has the contact part 305 contact | abutted with the case (not shown) which accommodates an electrical storage apparatus. The termination member 30 of the present embodiment is formed by molding a metal plate. That is, the termination member 30 is a molded product of a metal plate. The terminal member 30 has a shape (contour shape) corresponding to the power storage element 1 when viewed in the X-axis direction.

凹部３００は、終端部材３０において、蓄電素子１の第一壁１００ｃの中央部（詳しくは、周縁部を除いた領域）と対応する位置に設けられる。そして、凹部３００は、外部スペーサ２Ｂの外部接触部２４Ｂに当接し、外部スペーサ２Ｂを介して蓄電素子１の第一壁１００ｃを押圧する。この凹部３００は、下縁部に、外方（Ｘ軸方向における蓄電素子１側と反対の側）に向かって先下りの傾斜面を有する。この傾斜面は、後述する周面３０２ａに含まれる。具体的に、凹部３００は、蓄電素子１（詳しくは、ケース本体１００の第一壁１００ｃ）に沿って拡がる起立面３０１ａを有する押圧部３０１と、押圧部３０１の周縁から起立面３０１ａと交差する方向であって蓄電素子１から離れる方向に延びる周縁部３０２と、を有する（図８参照）。   Concave portion 300 is provided at a position corresponding to the central portion (specifically, the region excluding the peripheral portion) of first wall 100 c of power storage element 1 in termination member 30. And the recessed part 300 contact | abuts to the external contact part 24B of the external spacer 2B, and presses the 1st wall 100c of the electrical storage element 1 via the external spacer 2B. The recess 300 has an inclined surface that descends toward the outside (on the side opposite to the storage element 1 side in the X-axis direction) at the lower edge. This inclined surface is included in a peripheral surface 302a described later. Specifically, the recess 300 intersects the rising surface 301a from the periphery of the pressing portion 301 and the pressing portion 301 having the rising surface 301a extending along the power storage element 1 (specifically, the first wall 100c of the case body 100). And a peripheral edge 302 extending in a direction away from the power storage element 1 (see FIG. 8).

押圧部３０１は、蓄電素子１と反対の側に起立面３０１ａを有する平板状の部位であり、挿入穴３００ａを有する。挿入穴３００ａは、嵌合部２３Ｂのネジ穴に螺合される雄ネジを挿通するための穴である。起立面３０１ａは、Ｙ−Ｚ平面（Ｙ軸方向とＺ軸方向とが含まれる面）方向に拡がる平面（平坦面）であり、終端部材３０の第二面に含まれる。本実施形態の起立面３０１ａは、垂直若しくは略垂直な面である。   The pressing portion 301 is a flat portion having an upstanding surface 301a on the side opposite to the power storage element 1, and has an insertion hole 300a. The insertion hole 300a is a hole for inserting a male screw screwed into the screw hole of the fitting portion 23B. The standing surface 301 a is a flat surface (flat surface) extending in the YZ plane (a surface including the Y-axis direction and the Z-axis direction) and is included in the second surface of the termination member 30. The standing surface 301a of the present embodiment is a vertical or substantially vertical surface.

周縁部３０２は、押圧部３０１の周縁から、該押圧部３０１に対して傾斜した状態で延びる部位であり、内側に周面３０２ａを有する。この周面３０２ａは、テーパ状の面である。具体的に、周面３０２ａは、起立面３０１ａから離れるに従って、Ｙ−Ｚ平面方向において押圧部３０１から離れるように傾斜する傾斜面である。即ち、周面３０２ａは、凹部３００の下縁部では、外方に向かって先下りの傾斜面であり、凹部３００の上縁部では、外方に向かって先上がりの傾斜面である。また、周面３０２ａは、凹部３００の両側の側縁部では、外方に向かうほど互いに離れる傾斜面である。   The peripheral edge portion 302 is a portion extending from the peripheral edge of the pressing portion 301 while being inclined with respect to the pressing portion 301, and has a peripheral surface 302a on the inner side. The peripheral surface 302a is a tapered surface. Specifically, the peripheral surface 302a is an inclined surface that inclines away from the pressing portion 301 in the YZ plane direction as the distance from the standing surface 301a increases. That is, the peripheral surface 302a is an inclined surface that descends outward toward the outside at the lower edge portion of the recess 300, and an inclined surface that rises toward the outside at the upper edge portion of the recess 300. Further, the peripheral surface 302a is inclined surfaces that are separated from each other toward the outer side at the side edge portions on both sides of the concave portion 300.

以上のような押圧部３０１と周縁部３０２とによって、終端部材３０において、蓄電素子１に向かって凹んだ凹部３００が形成される。本実施形態の終端部材３０が、金属板の成形品であるため、凹部３００は、第一面側から見ると、蓄電素子１に向かって膨出している。このため、蓄電装置では、Ｘ軸方向に並ぶ複数の蓄電素子１（蓄電素子群）が、Ｘ軸方向の両外側から押圧部３０１によって押圧される（挟持される）。これにより、蓄電装置において蓄電素子１が強固に固定される。即ち、蓄電装置において、蓄電素子１同士の相対移動が効果的に抑えられる。これは、第一壁１００ｃにおける周縁部を除いた部位（領域）が、ケース１０において、蓄電素子１の充放電時に膨張し易い部位であり、この領域が押圧されることにより、整列する複数の蓄電素子１が強固に且つ効果的に固定されるためである。   By the pressing portion 301 and the peripheral edge portion 302 as described above, the concave portion 300 that is recessed toward the power storage element 1 is formed in the termination member 30. Since the termination member 30 of this embodiment is a molded product of a metal plate, the recess 300 bulges toward the power storage element 1 when viewed from the first surface side. For this reason, in the power storage device, a plurality of power storage elements 1 (power storage element groups) arranged in the X-axis direction are pressed (held) by the pressing portions 301 from both outer sides in the X-axis direction. Thereby, the electrical storage element 1 is firmly fixed in the electrical storage device. That is, in the power storage device, relative movement between the power storage elements 1 is effectively suppressed. This is a portion (region) excluding the peripheral portion of the first wall 100c that is likely to expand during charging / discharging of the electricity storage device 1 in the case 10, and a plurality of regions aligned by pressing this region. This is because the electricity storage element 1 is firmly and effectively fixed.

当接部３０５は、凹部３００の開口縁（凹部３００の開口を規定する部位であり、周縁部３０２における押圧部３０１と反対の側の端縁）よりもＸ軸方向において突出する。本実施形態の当接部３０５は、突出方向の先端に、Ｙ−Ｚ平面方向に拡がる当接面３０６を有する。この当接面３０６は、Ｘ軸方向において、凹部３００の開口縁より突出している。   The contact portion 305 protrudes in the X-axis direction from the opening edge of the recess 300 (the portion that defines the opening of the recess 300 and the end edge on the side opposite to the pressing portion 301 in the peripheral portion 302). The contact portion 305 of the present embodiment has a contact surface 306 that extends in the YZ plane direction at the tip in the protruding direction. The contact surface 306 protrudes from the opening edge of the recess 300 in the X-axis direction.

当接部３０５は、当接面３０６の中央部に貫通穴３０６ａを有する。この貫通穴３０６ａは、例えば、複数の蓄電装置を連結して固定するための連結板５００と、蓄電装置と、を固定するネジが挿通される。具体的には、図９に示すように、連結板５００に設けられた当接面５０２に当接部３０５の当接面３０６が当接するように、蓄電装置が連結板５００に固定される。このとき、Ｘ軸方向に重なった状態の前記当接面５０２に設けられた貫通穴５０４と当接部３０５の貫通穴３０６ａとにボルト３０７が挿通され、該ボルト３０７にナット３０８が螺合される。連結板５００には、該蓄電装置に隣り合って配置される他の蓄電装置も固定される。これにより、複数の蓄電装置が連結板５００によって連結される。連結された複数の蓄電装置は、電池パックの内部において該電池パック５００に締結される。   The contact portion 305 has a through hole 306 a in the center portion of the contact surface 306. The through-hole 306a is inserted with, for example, a screw that fixes the connection plate 500 for connecting and fixing a plurality of power storage devices and the power storage device. Specifically, as illustrated in FIG. 9, the power storage device is fixed to the connection plate 500 such that the contact surface 306 of the contact portion 305 contacts the contact surface 502 provided on the connection plate 500. At this time, the bolt 307 is inserted into the through hole 504 provided in the contact surface 502 in a state of being overlapped in the X-axis direction and the through hole 306a of the contact portion 305, and the nut 308 is screwed into the bolt 307. The Other power storage devices arranged adjacent to the power storage device are also fixed to connecting plate 500. As a result, the plurality of power storage devices are connected by the connecting plate 500. The plurality of connected power storage devices are fastened to the battery pack 500 inside the battery pack.

本実施形態の終端部材３０は、複数（本実施形態の例では二つ）の当接部３０５を有する。図６に示すように、各当接部３０５は、凹部３００内から突出している。一方の当接部３０５は、一部が周縁部３０２に連接された状態で起立面３０１ａから突出している。他方の当接部３０５は、周縁部３０２と離れた状態で起立面３０１ａから突出している。   The termination member 30 of the present embodiment has a plurality of (two in the example of the present embodiment) contact portions 305. As shown in FIG. 6, each contact portion 305 protrudes from the recess 300. One abutting portion 305 protrudes from the standing surface 301 a in a state where a part thereof is connected to the peripheral edge portion 302. The other abutment portion 305 protrudes from the standing surface 301 a in a state of being separated from the peripheral edge portion 302.

連結部材３１は、蓄電素子１に対してＸ軸方向（蓄電素子１と終端部材３０とが並ぶ方向）に沿って配置される。連結部材３１は、終端部材３０と連結される固定部３１３を有する。   The connecting member 31 is disposed along the X-axis direction (the direction in which the power storage element 1 and the termination member 30 are arranged) with respect to the power storage element 1. The connecting member 31 has a fixing portion 313 that is connected to the terminal member 30.

連結部材３１は、一対の終端部材３０間に亘って延びる一対の第一接続部３１０及び第二接続部３１１を有する。本実施形態の連結部材３１は、一対の第一接続部３１０と、一対の第二接続部３１１と、を有する。第一接続部３１０は、一対の終端部材３０間において、蓄電素子１の蓋板１０１と対応する位置に配置される。また、第二接続部３１１は、一対の終端部材３０間において、蓄電素子１の閉塞部１００ａと対応する位置に配置される。これにより、本実施形態では、一対の第一接続部３１０及び一対の第二接続部３１１によって、一対の終端部材３０の四隅が互いに連結されている。   The connecting member 31 has a pair of first connection portions 310 and a second connection portion 311 that extend between the pair of termination members 30. The connecting member 31 according to the present embodiment includes a pair of first connection portions 310 and a pair of second connection portions 311. The first connecting portion 310 is disposed at a position corresponding to the cover plate 101 of the power storage element 1 between the pair of termination members 30. Further, the second connection portion 311 is disposed at a position corresponding to the closing portion 100 a of the power storage element 1 between the pair of termination members 30. Thereby, in this embodiment, the four corners of the pair of termination members 30 are connected to each other by the pair of first connection portions 310 and the pair of second connection portions 311.

一対の第一接続部３１０のそれぞれは、Ｘ軸方向（長手をなす方向）の一方の端部である第一端と、該第一端とは反対側の端部である第二端と、を有する。また、一対の第二接続部３１１のそれぞれは、Ｘ軸方向（長手をなす方向）の一方の端部である第一端と、該第一端とは反対側の端部である第二端と、を有する。第一接続部３１０の一端及び他端には、固定部３１３ａがそれぞれ設けられている。また、第二接続部３１１の一端及び他端には、固定部３１３ｂがそれぞれ設けられている。   Each of the pair of first connection portions 310 includes a first end that is one end portion in the X-axis direction (a direction in which the longitudinal direction is formed), a second end that is an end portion opposite to the first end, Have Each of the pair of second connection portions 311 includes a first end that is one end portion in the X-axis direction (a direction in which the longitudinal direction is formed), and a second end that is an end portion on the opposite side to the first end. And having. Fixing portions 313a are provided at one end and the other end of the first connection portion 310, respectively. In addition, fixed portions 313b are provided at one end and the other end of the second connection portion 311, respectively.

各固定部３１３ａ，３１３ｂは、終端部材３０に対し、Ｘ軸方向の外方から重ね合わせ可能である。より具体的に説明する。固定部３１３ａ，３１３ｂは、各接続部３１０，３１１の第一端及び第二端から延び且つ終端部材３０の外面（第二面）に沿った板状の部位である。各固定部３１３ａ，３１３ｂは、終端部材３０の外面における貫通穴３００ｂ周りの部分と対向する。そして、固定部３１３ａ，３１３ｂのそれぞれには、貫通穴３００ｂと対応する位置に第一穴部３１３ｃ，３１３ｄが形成されている。   Each fixing portion 313a, 313b can be superimposed on the end member 30 from the outside in the X-axis direction. This will be described more specifically. The fixing portions 313a and 313b are plate-like portions extending from the first end and the second end of the connection portions 310 and 311 and extending along the outer surface (second surface) of the termination member 30. Each of the fixing portions 313 a and 313 b faces a portion around the through hole 300 b on the outer surface of the termination member 30. In each of the fixing portions 313a and 313b, first hole portions 313c and 313d are formed at positions corresponding to the through holes 300b.

以上のように構成される第一接続部３１０及び第二接続部３１１は、終端部材３０の貫通穴３００ｂと、固定部３１３ａ，３１３ｂの第一穴部３１３ｃ，３１３ｄとに挿通したボルトにナットを螺合させることにより、終端部材３０に連結される。これにより、一対の終端部材３０の四隅同士が第一及び第二接続部３１０，３１１によって接続される。即ち、本実施形態では、一つの終端部材３０に対する連結部材３１の連結部位が四箇所ある。   The first connection part 310 and the second connection part 311 configured as described above are configured such that nuts are inserted into bolts inserted into the through holes 300b of the termination member 30 and the first holes 313c and 313d of the fixing parts 313a and 313b. The end member 30 is connected by screwing. Thereby, the four corners of the pair of termination members 30 are connected by the first and second connection portions 310 and 311. That is, in the present embodiment, there are four connecting portions of the connecting member 31 with respect to one terminal member 30.

インシュレータ４は、絶縁性を有する材料で構成されている。そして、インシュレータ４は、一対の第一接続部３１０のそれぞれと、蓄電素子１との間に配置される一対の第一絶縁部４０と、一対の第二接続部３１１のそれぞれと蓄電素子１との間に配置される一対の第二絶縁部４１とを有する。   The insulator 4 is made of an insulating material. The insulator 4 includes a pair of first insulating portions 40 disposed between each of the pair of first connection portions 310 and the power storage element 1, each of the pair of second connection portions 311, and the power storage element 1. And a pair of second insulating portions 41 disposed between the two.

以上の蓄電装置によれば、凹部３００内で結露した水、及び終端部材３０の他の部位（凹部を除いた部位）で結露して凹部に入った水は、該凹部３００の下縁部から傾斜面（周面３０２ａにおける下側の部位）によって外方に排出されるため、該凹部３００内に溜まり難い。   According to the above power storage device, the water condensed in the recess 300 and the water that has condensed in the other part of the termination member 30 (the part excluding the recess) and entered the recess are discharged from the lower edge of the recess 300. Since it is discharged outward by the inclined surface (the lower portion of the peripheral surface 302a), it is difficult to accumulate in the recess 300.

本実施形態の蓄電装置では、当接部３０５が凹部３００の開口縁よりも突出している。このため、図９に示すように、蓄電装置が電池パック（ケース）に収容されて当接部３０５が電池パックと当接したときに、凹部３００の開口縁と電池パックの内面との間に隙間が形成されるため、図１０に示すように、凹部３００内の水（結露等のよって生じた水）Ｗが凹部３００に閉じ込められずに前記隙間から凹部の外方に排出される。尚、本実施形態の電池パックでは、当接面５０２が周囲の面に対して蓄電装置側（終端部材３０の当接部３０５側）に突出しているが、当接面５０２と前記周囲の面とが共通の平面を構成していてもよい。この場合でも、終端部材３０の当接部３０５が凹部３００の開口縁より突出しているため、凹部３００の開口縁と電池パック５００の内面との間に前記隙間（水を排出可能な隙間、即ち、前記開口縁からの当接部３０５の突出量に応じた隙間）が形成される。   In the power storage device of this embodiment, the contact portion 305 protrudes from the opening edge of the recess 300. For this reason, as shown in FIG. 9, when the power storage device is accommodated in the battery pack (case) and the contact portion 305 contacts the battery pack, the gap between the opening edge of the recess 300 and the inner surface of the battery pack. Since the gap is formed, as shown in FIG. 10, the water W (water generated by condensation) W in the recess 300 is discharged from the gap to the outside of the recess without being confined in the recess 300. In the battery pack of this embodiment, the contact surface 502 protrudes toward the power storage device side (the contact portion 305 side of the termination member 30) with respect to the surrounding surface. And may constitute a common plane. Even in this case, since the abutting portion 305 of the termination member 30 protrudes from the opening edge of the recess 300, the gap (the gap from which water can be discharged, that is, the gap between the opening edge of the recess 300 and the inner surface of the battery pack 500). A gap corresponding to the amount of protrusion of the contact portion 305 from the opening edge is formed.

本実施形態の蓄電装置では、当接部３０５が凹部３００内から突出しているため、終端部材３０において凹部３００の外側（Ｙ−Ｚ平面方向における凹部３００の外側）に該当接部３０５を設けるためのスペースを確保しなくてもよい。これにより、終端部材３０の小型化を図ることができる。   In the power storage device of the present embodiment, since the contact portion 305 protrudes from the inside of the recess 300, the corresponding contact portion 305 is provided on the end member 30 outside the recess 300 (outside the recess 300 in the YZ plane direction). It is not necessary to secure the space. Thereby, size reduction of the termination | terminus member 30 can be achieved.

本実施形態の蓄電装置では、凹部３００が起立面３０１ａと、起立面３０１ａの下縁から延びる傾斜面（周面３０２ａに含まれる面）を有しているため、凹部３００内において結露等によって生じた水は、起立面３０１ａを伝って該起立面３０１ａの下縁、即ち、凹部３００の下縁部まで流れ易い。このため、凹部３００内において結露等によって生じた水をより確実に排水することができる。   In the power storage device of the present embodiment, the recess 300 has an upright surface 301a and an inclined surface (surface included in the peripheral surface 302a) extending from the lower edge of the upright surface 301a. The water easily flows along the rising surface 301 a to the lower edge of the rising surface 301 a, that is, the lower edge of the recess 300. For this reason, the water produced by dew condensation or the like in the recess 300 can be drained more reliably.

尚、本発明は、上記実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲において種々変更を行うことは勿論である。   In addition, this invention is not limited to the said embodiment, Of course, various changes are made in the range which does not deviate from the summary of this invention.

凹部３００の下縁部に設けられる傾斜面の具体的な構成は、限定されない。例えば、図１１及び図１２に示すように、前記傾斜面は、水平方向に対して一定角度の平面によって構成されてもよく、外方ほど水平方向に対して傾斜が大きくなる曲面等であってもよい。また、前記傾斜面は、平面と曲面とを組み合わせた形状でもよい。即ち、前記傾斜面は、凹部３００内の水が該凹部３００の下縁部に集まったときに、この水が開口（凹部３００の開口）から外方に排出され易い形状の傾斜面であればよい。   The specific configuration of the inclined surface provided at the lower edge of the recess 300 is not limited. For example, as shown in FIGS. 11 and 12, the inclined surface may be configured by a plane having a constant angle with respect to the horizontal direction, and may be a curved surface or the like that increases in inclination with respect to the horizontal direction toward the outside. Also good. Further, the inclined surface may have a shape combining a flat surface and a curved surface. That is, the inclined surface is an inclined surface having such a shape that when the water in the recess 300 is collected at the lower edge of the recess 300, the water is easily discharged outward from the opening (opening of the recess 300). Good.

上記実施形態の終端部材３０は、二つの当接部３０５を有しているが、この構成に限定されない。例えば、終端部材３０は、一つの当接部３０５を有していてもよく、三つ以上の当接部３０５を有していてもよい。   Although the termination | terminus member 30 of the said embodiment has the two contact parts 305, it is not limited to this structure. For example, the termination member 30 may have one abutting portion 305 or may have three or more abutting portions 305.

上記実施形態の終端部材３０では、第二面から第一面側に窪んだ凹部（外方に向かって先下がりの傾斜面を下縁部に有する凹部）３００が設けられているが、この構成に限定されない。終端部材３０の第一面から第二面側に窪んだ凹部３００が設けられてもよい。また、終端部材３０の両面（第一面及び第二面）のそれぞれに、凹部３００が設けられてもよい。凹部３００が、下縁部に、外方に向かって先下がりの傾斜面を有していれば、第一面及び第二面のいずれの面に形成されても、凹部３００内で結露した水、及び終端部材３０の凹部３００を除いた部位で結露して凹部３００に流れ込んだ水は、該凹部３００の下縁部から傾斜面によって外方に排出されるため、該凹部３００内に溜まり難い。   In the termination member 30 of the above-described embodiment, a concave portion (a concave portion having a downwardly inclined surface at the lower edge portion) outwardly provided from the second surface to the first surface side is provided. It is not limited to. A recess 300 that is recessed from the first surface to the second surface side of the termination member 30 may be provided. Moreover, the recessed part 300 may be provided in each of both surfaces (1st surface and 2nd surface) of the termination | terminus member 30. FIG. If the concave portion 300 has an inclined surface that is inclined downward toward the outside at the lower edge portion, water that has condensed in the concave portion 300 regardless of whether the concave portion 300 is formed on either the first surface or the second surface. In addition, the water that has condensed and flowed into the concave portion 300 at the portion of the termination member 30 excluding the concave portion 300 is discharged outward from the lower edge portion of the concave portion 300 by the inclined surface, so that it is difficult to accumulate in the concave portion 300. .

また、終端部材３０において、外方に向かって先下がりの傾斜面が設けられる部位は、第一面又は第二面に設けられる凹部に限定されない。例えば、図１３に示すように、終端部材３０に第一面から第二面に貫通する貫通孔３５０が設けられ、この貫通孔３５０を規定する内周面３５１の少なくとも下部領域が、第一面から第二面に向けて先下がりの傾斜面であってもよい。即ち、終端部材３０において、貫通孔３５０を規定する内周面３５１の周方向における少なくとも一部の領域が、該貫通孔における一方の開口（例えば第一面側の開口）から他方の開口（例えば第二面側の開口）に向かうに連れて該貫通孔３５０が大きくなる方向に傾く傾斜面であってもよい。かかる構成によっても、貫通方向が水平若しくは略水平方向となり、且つ内周面３５１における前記傾斜面となる領域が下部になるような姿勢で蓄電装置を配置することにより、内周面３５１において結露した水が、該内周面３５１の下部の傾斜面を伝って貫通孔３５０から排出されるため、該貫通孔３５０内（内周面３５１）に留まり難くなる。   Moreover, in the termination | terminus member 30, the site | part in which the downward inclined surface is provided toward outward is not limited to the recessed part provided in a 1st surface or a 2nd surface. For example, as shown in FIG. 13, the terminal member 30 is provided with a through hole 350 penetrating from the first surface to the second surface, and at least a lower region of the inner peripheral surface 351 defining the through hole 350 is the first surface. It may be an inclined surface that descends toward the second surface. That is, in the termination member 30, at least a part of the inner circumferential surface 351 defining the through hole 350 in the circumferential direction extends from one opening (for example, the first surface side opening) to the other opening (for example, the first surface side opening). It may be an inclined surface that is inclined in a direction in which the through hole 350 becomes larger toward the opening on the second surface side. Even with this configuration, the power storage device is disposed in such a manner that the penetrating direction is horizontal or substantially horizontal and the region of the inner peripheral surface 351 that is the inclined surface is the lower portion, so that dew condensation occurs on the inner peripheral surface 351. Since water is discharged from the through hole 350 along the inclined surface below the inner peripheral surface 351, it is difficult to stay in the through hole 350 (inner peripheral surface 351).

上記実施形態の終端部材３０は、金属板の成形品であるが、この構成に限定されない。終端部材３０は、板厚の大きな部材によって形成されてもよい。この場合でも、終端部材３０に設けられた凹部３００が、下縁部に、外方に向けて先下りの傾斜面を有していれば、終端部材３０の表面で結露した水が、凹部３００内に溜まり難い。   The termination member 30 of the above embodiment is a molded product of a metal plate, but is not limited to this configuration. The termination member 30 may be formed of a member having a large plate thickness. Even in this case, if the concave portion 300 provided in the termination member 30 has an inclined surface that descends toward the outside at the lower edge portion, the water condensed on the surface of the termination member 30 is not removed. It is hard to stay inside.

上記実施形態の凹部３００は、垂直な面である起立面３０１ａを有しているが、この構成に限定されない。例えば、凹部３００において、内側の面が湾曲面のみによって構成されてもよい。   Although the recessed part 300 of the said embodiment has the standing surface 301a which is a perpendicular | vertical surface, it is not limited to this structure. For example, in the recess 300, the inner surface may be constituted only by a curved surface.

上記実施形態の終端部材３０は、一つの凹部３００を有しているが、複数の凹部３００を有していてもよい。   The termination member 30 of the above embodiment has one recess 300, but may have a plurality of recesses 300.

１…蓄電素子、２…スペーサ、２０…ベース、２Ａ…内部スペーサ、２０Ａ…ベース、２００Ａ…第一当接部、２００Ｂ…第二当接部、２００Ｃ…連接部、２１Ａ…規制部、２２Ａ…弁カバー部、２Ｂ…外部スペーサ、２０Ｂ…ベース、２０１Ｂ…内部接触部（第二突出部）、２１Ｂ…規制部、２２Ｂ…位置決部、２３Ｂ…嵌合部、２４Ｂ…外部接触部（第一突出部）、３…保持部材、３０…終端部材、３００…凹部、３００ａ…挿入穴、３００ｂ…貫通穴、３０１…押圧部、３０１ａ…起立面、３０２…周縁部、３０２ａ…周面、３０５…当接部、３０６…当接面、３０６ａ…貫通穴、３０７…ボルト、３０８…ナット、３１…連結部材、３１０…第一接続部、３１１…第二接続部、３１３，３１３ａ，３１３ｂ…固定部、３１３ｃ，３１３ｄ…第一穴部、４…インシュレータ、４０…第一絶縁部、４１…第二絶縁部、１０…ケース、１００…ケース本体、１００ａ…閉塞部、１００ｂ…胴部、１００ｃ…第一壁、１００ｄ…第二壁、１０１…蓋板、１０１ａ…ガス排出弁、１１…外部端子、５００…電池パック、５０２…当接面、５０４…貫通穴   DESCRIPTION OF SYMBOLS 1 ... Power storage element, 2 ... Spacer, 20 ... Base, 2A ... Internal spacer, 20A ... Base, 200A ... First contact part, 200B ... Second contact part, 200C ... Connection part, 21A ... Restriction part, 22A ... Valve cover portion, 2B ... external spacer, 20B ... base, 201B ... internal contact portion (second protruding portion), 21B ... regulating portion, 22B ... positioning portion, 23B ... fitting portion, 24B ... external contact portion (first) 3) holding member, 30 ... termination member, 300 ... concave portion, 300a ... insertion hole, 300b ... through hole, 301 ... pressing part, 301a ... standing surface, 302 ... peripheral edge, 302a ... peripheral surface, 305 ... Contact portion, 306 ... Contact surface, 306a ... Through hole, 307 ... Bolt, 308 ... Nut, 31 ... Connection member, 310 ... First connection portion, 311 ... Second connection portion, 313, 313a, 313b ... Fixing portion 313c, 31 d ... 1st hole part, 4 ... insulator, 40 ... 1st insulation part, 41 ... 2nd insulation part, 10 ... case, 100 ... case main body, 100a ... obstruction | occlusion part, 100b ... trunk | drum, 100c ... 1st wall, 100d ... second wall 101 ... lid plate 101a ... gas discharge valve 11 ... external terminal 500 ... battery pack 502 ... contact surface 504 ... through hole

Claims (8)

少なくとも一つの蓄電素子と、
前記蓄電素子と並んで配置される終端部材と、を備え、
前記終端部材は、前記蓄電素子と対向する第一面と、該第一面と反対側の第二面との少なくとも一方の面に、水平若しくは略水平方向に開口する凹部を有し、
前記凹部は、該凹部の下縁部に、外方に向かって先下りの傾斜面を有する、蓄電装置。 At least one power storage element;
A termination member arranged side by side with the power storage element,
The termination member has a recess opening in a horizontal or substantially horizontal direction on at least one of a first surface facing the power storage element and a second surface opposite to the first surface,
The concave portion is a power storage device having an inclined surface that descends outward toward the outside at a lower edge portion of the concave portion. 前記凹部は、前記終端部材の第二面に設けられ、
前記終端部材は、該蓄電装置を固定する部材と当接する当接部を有し、
前記当接部は、前記固定する部材が取り付けられたときに、該固定する部材と、前記終端部材における前記凹部の開口縁との間に、隙間が形成される形状を有する、請求項１に記載の蓄電装置。 The recess is provided on the second surface of the termination member,
The termination member has a contact portion that contacts a member that fixes the power storage device,
The contact portion has a shape in which a gap is formed between the fixing member and the opening edge of the recess in the terminal member when the fixing member is attached. The power storage device described. 前記当接部は、前記凹部の開口縁よりも突出する、請求項２に記載の蓄電装置。   The power storage device according to claim 2, wherein the contact portion protrudes from an opening edge of the recess. 前記当接部は、前記凹部内から突出する、請求項２又は３に記載の蓄電装置。   The power storage device according to claim 2, wherein the contact portion projects from the inside of the recess. 前記凹部は、前記蓄電素子に沿って拡がる起立面を有し、
前記傾斜面は、前記起立面の下縁から延びる、請求項１〜４のいずれか１項に記載の蓄電装置。 The recess has an upstanding surface extending along the power storage element,
The power storage device according to claim 1, wherein the inclined surface extends from a lower edge of the standing surface. 前記終端部材は、金属製である、請求項１〜５のいずれか１項に記載の蓄電装置。   The power storage device according to claim 1, wherein the termination member is made of metal. 少なくとも一つの蓄電素子と、
前記蓄電素子と並んで配置される終端部材と、を備え、
前記終端部材は、前記蓄電素子と対向する第一面と、該第一面と反対側の第二面との少なくとも一方の面に開口する凹部を有し、
前記凹部の開口縁部の周方向における少なくとも一部の領域は、開口方向に向かうに連れて該開口が大きくなる方向に傾く傾斜面である、蓄電装置。 At least one power storage element;
A termination member arranged side by side with the power storage element,
The termination member has a recess opening in at least one surface of a first surface facing the power storage element and a second surface opposite to the first surface;
The power storage device, wherein at least a partial region in the circumferential direction of the opening edge of the recess is an inclined surface that is inclined in a direction in which the opening becomes larger toward the opening direction. 少なくとも一つの蓄電素子と、
前記蓄電素子と並んで配置される終端部材と、を備え、
前記終端部材は、前記蓄電素子と対向する第一面から、該第一面と反対側の第二面まで貫通する貫通孔を規定する内周面を有し、
前記内周面の周方向における少なくとも一部の領域が、該貫通孔における一方の開口から他方の開口に向かうに連れて該貫通孔が大きくなる方向に傾く傾斜面である、蓄電装置。 At least one power storage element;
A termination member arranged side by side with the power storage element,
The termination member has an inner peripheral surface that defines a through hole penetrating from a first surface facing the power storage element to a second surface opposite to the first surface;
The power storage device, wherein at least a partial region in the circumferential direction of the inner peripheral surface is an inclined surface that is inclined in a direction in which the through hole becomes larger from one opening to the other opening in the through hole.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017162810A (en) * 2016-03-07 2017-09-14 株式会社東芝 Battery module
USD822595S1 (en) 2016-01-29 2018-07-10 Gs Yuasa International Ltd. Assembled battery
JP2019010740A (en) * 2017-06-29 2019-01-24 富士ゼロックス株式会社 Polyimide laminated membrane, and method for producing polyimide laminated membrane
JP2019032998A (en) * 2017-08-08 2019-02-28 株式会社ブルーエナジー Power storage device, mobile, and power storage system
US10873064B2 (en) 2017-09-12 2020-12-22 Blue Energy Co., Ltd. Energy storage apparatus
JP2023511731A (en) * 2020-09-22 2023-03-22 エルジー エナジー ソリューション リミテッド Battery module and battery pack containing same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013179797A1 (en) * 2012-05-31 2013-12-05 本田技研工業株式会社 Power storage module and fixing structure of power storage module
JP2014093276A (en) * 2012-11-07 2014-05-19 Honda Motor Co Ltd Power storage device and on-vehicle mounting structure of power storage device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013179797A1 (en) * 2012-05-31 2013-12-05 本田技研工業株式会社 Power storage module and fixing structure of power storage module
JP2014093276A (en) * 2012-11-07 2014-05-19 Honda Motor Co Ltd Power storage device and on-vehicle mounting structure of power storage device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD822595S1 (en) 2016-01-29 2018-07-10 Gs Yuasa International Ltd. Assembled battery
JP2017162810A (en) * 2016-03-07 2017-09-14 株式会社東芝 Battery module
JP2019010740A (en) * 2017-06-29 2019-01-24 富士ゼロックス株式会社 Polyimide laminated membrane, and method for producing polyimide laminated membrane
JP2019032998A (en) * 2017-08-08 2019-02-28 株式会社ブルーエナジー Power storage device, mobile, and power storage system
JP6990064B2 (en) 2017-08-08 2022-02-03 株式会社ブルーエナジー Power storage devices, mobiles, and power storage systems
US10873064B2 (en) 2017-09-12 2020-12-22 Blue Energy Co., Ltd. Energy storage apparatus
JP2023511731A (en) * 2020-09-22 2023-03-22 エルジー エナジー ソリューション リミテッド Battery module and battery pack containing same
JP7463016B2 (en) 2020-09-22 2024-04-08 エルジー エナジー ソリューション リミテッド Battery module and battery pack including same

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