WO2018143464A1 - Battery module and method for producing battery module - Google Patents

Battery module and method for producing battery module Download PDF

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Publication number
WO2018143464A1
WO2018143464A1 PCT/JP2018/003858 JP2018003858W WO2018143464A1 WO 2018143464 A1 WO2018143464 A1 WO 2018143464A1 JP 2018003858 W JP2018003858 W JP 2018003858W WO 2018143464 A1 WO2018143464 A1 WO 2018143464A1
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Prior art keywords
block member
battery group
battery
plate
battery module
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PCT/JP2018/003858
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French (fr)
Japanese (ja)
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末松　久幸
中野　洋一
孝行 中島
幸典 高橋
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日立オートモティブシステムズ株式会社
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Priority to JP2018566161A priority Critical patent/JP6866405B2/en
Publication of WO2018143464A1 publication Critical patent/WO2018143464A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

This battery module is provided with: a first cell group in which a plurality of cells are laminated in a first direction; a second cell group in which a plurality of cells are laminated in the first direction; a first block member which is arranged between the first cell group and the second cell group; a second block member which sandwiches the first cell group together with the first block member; a third block member which sandwiches the second cell group together with the first block member; and a binding plate which firmly binds up the first cell group, the second cell group, the first block member, the second block member and the third block member. The first cell group, the second cell group, the first block member, the second block member and the third block member are aligned in a second direction that is perpendicular to the first direction; the binding plate is arranged so as to be superposed on the first cell group, the second cell group, the first block member, the second block member and the third block member in the first direction; and the binding plate is provided with positioning parts which position the second block member and the third block member.

Description

電池モジュール、電池モジュールの製造方法Battery module and battery module manufacturing method
　本発明は、電池モジュール、および電池モジュールの製造方法に関する。 The present invention relates to a battery module and a method for manufacturing the battery module.
　従来、再充電可能な二次電池の分野では、鉛電池、ニッケル－カドミウム電池、ニッケル－水素電池等の水溶液系電池が主流であった。しかしながら、電気機器の小型化、軽量化が進むにつれ、高エネルギー密度を有するリチウム二次電池が着目され、その研究、開発及び商品化が急速に進められた。一方、地球温暖化や枯渇燃料の問題から電気自動車（ＥＶ）や駆動の一部を電気モーターで補助するハイブリッド電気自動車（ＨＥＶ）が各自動車メーカーで開発され、その電源として高容量で高出力な二次電池が求められるようになってきた。このような要求に合致する電源として、高電圧を有する非水溶液系のリチウム二次電池が注目されている。特に角形リチウム二次電池はパック化した際の体積効率が優れているため、ＨＥＶ用あるいはＥＶ用として角形リチウム二次電池の開発への期待が高まっている。特許文献１には、多数個の二次電池を平置きで積層したことを特徴とするモジュール構造により、低背化を図った二次電池モジュールが開示されている。 Conventionally, in the field of rechargeable secondary batteries, aqueous batteries such as lead batteries, nickel-cadmium batteries and nickel-hydrogen batteries have been mainstream. However, as electric devices have become smaller and lighter, lithium secondary batteries having high energy density have attracted attention, and their research, development, and commercialization have been promoted rapidly. On the other hand, electric vehicles (EV) and hybrid electric vehicles (HEV) that assist part of driving with electric motors have been developed by each automobile manufacturer due to global warming and depleted fuel problems. Secondary batteries have been demanded. As a power source that meets such requirements, a non-aqueous lithium secondary battery having a high voltage has attracted attention. In particular, since the prismatic lithium secondary battery is excellent in volumetric efficiency when packed, the expectation for development of the prismatic lithium secondary battery for HEV or EV is increasing. Patent Document 1 discloses a secondary battery module that is reduced in height by a module structure characterized by stacking a large number of secondary batteries in a flat position.
米国特許第９４０６９１６号明細書U.S. Pat. No. 9,406,916
　特許文献１に記載されている発明では、複数の電池群を効率よく均等に固縛できない。 In the invention described in Patent Document 1, a plurality of battery groups cannot be secured efficiently and evenly.
　本発明の第１の態様による電池モジュールは、複数の電池セルが第一の方向に積層された第一の電池群と、複数の電池セルが前記第一の方向に積層された第二の電池群と、前記第一の電池群および前記第二の電池群の間に配置された第一のブロック部材と、前記第一のブロック部材と共に前記第一の電池群を挟持する第二のブロック部材と、前記第一のブロック部材と共に前記第二の電池群を挟持する第三のブロック部材と、前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材を固縛する固縛板とを備え、前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材は前記第一の方向と直交する第二の方向に並べて配置され、前記固縛板は、前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材と前記第一の方向に重ねて配置され、前記固縛板は、前記第二のブロック部材、および前記第三のブロック部材の位置決めを行う位置決め部を備える。
　本発明の第２の態様による電池モジュールの製造方法は、複数の電池セルが第一の方向に積層された第一の電池群と、複数の電池セルが前記第一の方向に積層された第二の電池群と、前記第一の電池群および前記第二の電池群の間に配置される第一のブロック部材と、前記第一のブロック部材と共に前記第一の電池群を挟持する第二のブロック部材と、前記第一のブロック部材と共に前記第二の電池群を挟持する第三のブロック部材と、前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材を固縛する固縛板とを備える電池モジュールの製造方法であって、前記固縛板は、前記第二のブロック部材、および前記第三のブロック部材の位置決めを行う位置決め部を備え、前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材を前記第一の方向と直交する第二の方向に並べて配置し、前記第二のブロック部材および前記第三のブロック部材を前記第一の電池群および前記第二の電池群を挟持する方向に押圧し、前記押圧を維持しつつ、前記位置決め部による位置決めがされた状態で前記固縛板を前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材と締結する。 The battery module according to the first aspect of the present invention includes a first battery group in which a plurality of battery cells are stacked in a first direction, and a second battery in which a plurality of battery cells are stacked in the first direction. A group, a first block member disposed between the first battery group and the second battery group, and a second block member sandwiching the first battery group together with the first block member A third block member that sandwiches the second battery group together with the first block member, the first battery group, the second battery group, the first block member, and the second block member. A block member, and a securing plate that secures the third block member, the first battery group, the second battery group, the first block member, the second block member, and The third block member is a second direction orthogonal to the first direction. The lashing plate is arranged in the first battery group, the second battery group, the first block member, the second block member, and the third block member and the first The securing plate is provided with a positioning portion for positioning the second block member and the third block member.
The battery module manufacturing method according to the second aspect of the present invention includes a first battery group in which a plurality of battery cells are stacked in a first direction, and a plurality of battery cells stacked in the first direction. A second battery group, a first block member disposed between the first battery group and the second battery group, and a second sandwiching the first battery group together with the first block member A block member, a third block member sandwiching the second battery group together with the first block member, the first battery group, the second battery group, the first block member, A battery module manufacturing method comprising: a second block member; and a securing plate that secures the third block member, wherein the securing plate includes the second block member and the third blocking member. A positioning part for positioning the block member The first battery group, the second battery group, the first block member, the second block member, and the third block member are arranged side by side in a second direction orthogonal to the first direction. The second block member and the third block member are pressed in a direction to sandwich the first battery group and the second battery group, and the positioning by the positioning unit is maintained while maintaining the press. In this state, the tying plate is fastened to the first block member, the second block member, and the third block member.
　本発明によれば、複数の電池群を効率よく均等に固縛できる。 According to the present invention, a plurality of battery groups can be efficiently and evenly secured.
電池モジュールの外観斜視図External perspective view of battery module 第一の電池群および第二の電池群の分解斜視図Exploded perspective view of the first battery group and the second battery group 電池モジュールの長手方向の分解斜視図Exploded perspective view of the battery module in the longitudinal direction 電池モジュールの積層方向の分解斜視図Exploded perspective view of battery module in stacking direction 電池モジュールの平面図Plan view of battery module 変形例１における突起および穴を示す図The figure which shows the processus | protrusion and hole in the modification 1. 変形例２における突起および穴を示す図The figure which shows the processus | protrusion and hole in the modification 2.
－実施の形態－
　以下、図１～図４を参照して、電池モジュールの第１の実施の形態を説明する。
　図１は、本発明にかかる電池モジュール１の外観斜視図である。電池モジュール１は、複数の電池セルが積層された第一の電池群１１と、複数の電池セルが積層された第二の電池群１２と、第一のブロック部材１３と、第二のブロック部材１４と、第三のブロック部材１５と、第一の電池群１１および第二の電池群１２を一括で固縛する１対の固縛板、すなわち上部固縛板１６と下部固縛板１７とを備える。第一のブロック部材１３は、第一の電池群１１と第二の電池群１２との間に配置される。第二のブロック部材１４は、第一のブロック部材１３と共に第一の電池群１１を挟持する。第三のブロック部材１５は、第一のブロック部材１３と共に第二の電池群１２を挟持する。 -Embodiment-
Hereinafter, a first embodiment of the battery module will be described with reference to FIGS.
FIG. 1 is an external perspective view of a battery module 1 according to the present invention. The battery module 1 includes a first battery group 11 in which a plurality of battery cells are stacked, a second battery group 12 in which a plurality of battery cells are stacked, a first block member 13, and a second block member. 14, a third block member 15, and a pair of lashing plates that collectively tie the first battery group 11 and the second battery group 12, that is, an upper lashing plate 16 and a lower lashing plate 17 Is provided. The first block member 13 is disposed between the first battery group 11 and the second battery group 12. The second block member 14 holds the first battery group 11 together with the first block member 13. The third block member 15 sandwiches the second battery group 12 together with the first block member 13.
　図１に示すように、第一の電池群１１、第二の電池群１２、第一のブロック部材１３、第二のブロック部材１４、および第三のブロック部材１５は図１の左右方向に並べて配置され、これらを図示上下方向から挟むように上部固縛板１６および下部固縛板１７が配置される。上部固縛板１６および下部固縛板１７は、第一のブロック部材１３、第二のブロック部材１４、および第三のブロック部材１５と締結ボルト１８にて締結される。以下では、図１の左右方向を電池モジュール１の長手方向と呼び、図１の上下方向を電池モジュール１の積層方向と呼び、図１の奥行き方向を電池モジュール１の奥行き方向と呼ぶ。また以下では、上部固縛板１６および下部固縛板１７をまとめて固縛板６７と呼び、第一のブロック部材１３、第二のブロック部材１４、および第三のブロック部材１５をまとめてブロック部材３４５と呼ぶ。 As shown in FIG. 1, the first battery group 11, the second battery group 12, the first block member 13, the second block member 14, and the third block member 15 are arranged in the left-right direction in FIG. The upper lashing plate 16 and the lower lashing plate 17 are arranged so as to sandwich them from above and below in the figure. The upper lashing plate 16 and the lower lashing plate 17 are fastened to the first block member 13, the second block member 14, and the third block member 15 with fastening bolts 18. Hereinafter, the left-right direction in FIG. 1 is referred to as the longitudinal direction of the battery module 1, the up-down direction in FIG. 1 is referred to as the stacking direction of the battery modules 1, and the depth direction in FIG. Hereinafter, the upper lashing plate 16 and the lower lashing plate 17 are collectively referred to as a lashing plate 67, and the first block member 13, the second block member 14, and the third block member 15 are collectively blocked. Called member 345.
　ブロック部材３４５の積層方向の寸法は、第一の電池群１１、および第二の電池群１２の積層方向の寸法よりも小さい。換言すると、第一の電池群１１および第二の電池群１２のそれぞれは、積層方向において第二のブロック部材１４と第三のブロック部材１５よりも固縛板６７の側に突出している。また、固縛板６７の形状はブロック部材３４５、第一の電池群１１、および第二の電池群１２の積層方向に沿うように曲げ加工がされている。換言すると、ブロック部材３４５と接する固縛板６７の面は、第一の電池群１１および第二の電池群１２よりも第二のブロック部材１４および第三のブロック部材１５の側に突出している。 The dimension in the stacking direction of the block member 345 is smaller than the dimension in the stacking direction of the first battery group 11 and the second battery group 12. In other words, each of the first battery group 11 and the second battery group 12 protrudes closer to the securing plate 67 than the second block member 14 and the third block member 15 in the stacking direction. The shape of the securing plate 67 is bent so as to follow the stacking direction of the block member 345, the first battery group 11, and the second battery group 12. In other words, the surface of the securing plate 67 in contact with the block member 345 protrudes toward the second block member 14 and the third block member 15 rather than the first battery group 11 and the second battery group 12. .
　前述したブロック部材３４５の積層方向の寸法と、第一の電池群１１、および第二の電池群１２の積層方向の寸法との差は、少なくとも締結ボルト１８の頭部高さ以上である。そのため、締結ボルト１８を用いて固縛板６７をブロック部材３４５に締結した状態においても、電池モジュール１の外形から締結ボルト１８が突出せず、電池モジュール１の低背化を実現している。 The difference between the dimension of the block member 345 in the stacking direction and the dimension of the first battery group 11 and the second battery group 12 in the stacking direction is at least the height of the head of the fastening bolt 18. Therefore, even when the fastening plate 67 is fastened to the block member 345 using the fastening bolt 18, the fastening bolt 18 does not protrude from the outer shape of the battery module 1, and the battery module 1 is reduced in height.
　図２は、第一の電池群１１および第二の電池群１２の分解斜視図である。第一の電池群１１および第二の電池群１２のそれぞれは、電池セル２１と電池セル２１を保持するための突起を備えた両面突起絶縁板２２とが交互に積層され、その上下端に片面突起絶縁板２３が配置される。電池セル２１は例えば、リチウムイオン二次電池である。電池セル２１は扁平な直方体の形状であり、図示手前の幅広面、図示左右の側面、図示上下の扁平面を有する。電池セル２１の幅広面の一端側付近には正極外部端子が、他端側付近には負極外部端子が設けられる。電池セル２１は、扁平面の表裏面が対向し、正極外部端子と負極外部端子が交互に反対側に配置されるように積層される。 FIG. 2 is an exploded perspective view of the first battery group 11 and the second battery group 12. Each of the first battery group 11 and the second battery group 12 has battery cells 21 and double-sided protrusion insulating plates 22 provided with protrusions for holding the battery cells 21 alternately stacked, and one surface on the upper and lower ends thereof. A protrusion insulating plate 23 is disposed. The battery cell 21 is, for example, a lithium ion secondary battery. The battery cell 21 has a flat rectangular parallelepiped shape, and has a wide surface in front of the drawing, side surfaces on the left and right in the drawing, and flat surfaces on the top and bottom in the drawing. A positive external terminal is provided near one end of the wide surface of the battery cell 21, and a negative external terminal is provided near the other end. The battery cells 21 are laminated so that the front and back surfaces of the flat surface face each other, and the positive external terminals and the negative external terminals are alternately arranged on the opposite side.
　両面突起絶縁板２２および片面突起絶縁板２３は例えば、ＰＢＴ（ポリブチレンテレフタレート）等の樹脂により形成される。両面突起絶縁板２２および片面突起絶縁板２３は、長方形のシート状の基材の少なくとも一方の面に複数の突起を有する。両面突起絶縁板２２および片面突起絶縁板２３は、シート状の基材の表面に突起形状に合わせて切断した別のシート状の部材を貼り付けることにより形成されてもよいし、突起を有するシート状の部材として一体的に形成されてもよい。この突起は、図２に示すように電池モジュール１の奥行き方向に不連続に、かつ図示左右対称に存在し、長手方向に所定の長さを有する。この突起は、押圧されることで電池セル２１同士、または電池セル２１と固縛板６７との固縛を強化する。電池セル２１同士の間に配置される両面突起絶縁板２２は両面に突起を有し、電池セル２１と固縛板６７との間に配置される片面突起絶縁板２３は、電池セル２１と接する側のみに突起を有する。すなわち図２では上方からの視点のため両面突起絶縁板２２および片面突起絶縁板２３の裏面の様子が図示されていないが、全ての両面突起絶縁板２２、および上部固縛板１６と接する図示上部の片面突起絶縁板２３の裏面には突起を有する。両面突起絶縁板２２および片面突起絶縁板２３の各辺の長さは、電池セル２１の扁平面の各辺の長さと同一、またはそれよりも短い。そのため、後述するように両面突起絶縁板２２および片面突起絶縁板２３が電池セル２１の放熱の妨げとならない。 The double-sided protruding insulating plate 22 and the single-sided protruding insulating plate 23 are formed of a resin such as PBT (polybutylene terephthalate). The double-sided protrusion insulating plate 22 and the single-sided protrusion insulating plate 23 have a plurality of protrusions on at least one surface of a rectangular sheet-like substrate. The double-sided protruding insulating plate 22 and the single-sided protruding insulating plate 23 may be formed by attaching another sheet-like member cut in accordance with the protruding shape to the surface of the sheet-like base material, or a sheet having protrusions. It may be integrally formed as a shaped member. As shown in FIG. 2, the protrusions are discontinuous in the depth direction of the battery module 1 and symmetrically in the drawing, and have a predetermined length in the longitudinal direction. This protrusion strengthens the securing between the battery cells 21 or between the battery cells 21 and the securing plate 67 by being pressed. The double-sided protruding insulating plate 22 disposed between the battery cells 21 has protrusions on both sides, and the single-sided protruding insulating plate 23 disposed between the battery cell 21 and the securing plate 67 is in contact with the battery cell 21. Has a protrusion only on the side. That is, FIG. 2 does not show the state of the back surfaces of the double-sided protrusion insulating plate 22 and the single-sided protruding insulating plate 23 from the upper side, but the upper part in the drawing in contact with all the double-sided protruding insulating plates 22 and the upper securing plate 16 The single-sided protrusion insulating plate 23 has a protrusion on the back surface. The length of each side of the double-sided protruding insulating plate 22 and the single-sided protruding insulating plate 23 is the same as or shorter than the length of each side of the flat surface of the battery cell 21. Therefore, as will be described later, the double-sided protruding insulating plate 22 and the single-sided protruding insulating plate 23 do not hinder heat dissipation of the battery cell 21.
　図３は電池モジュール１の長手方向の分解斜視図である。ただし図３では、固縛板６７を省略している。第一の電池群１１は伝熱シート３１を介して第一のブロック部材１３および第二のブロック部材１４と接触し、第二の電池群１２は伝熱シート３１を介して第一のブロック部材１３および第三のブロック部材１５と接触する。伝熱シート３１は熱伝導率の高いシート状の部材であり、押圧されることで変形して密着する。そのため後述する方法により電池モジュール１を組み立てることにより、第一の電池群１１および第二の電池群１２が発する熱を、伝熱シート３１を介してそれぞれのブロック部材へ効率よく伝達できる。図２において示した両面突起絶縁板２２および片面突起絶縁板２３は、第一の電池群１１および第二の電池群１２の側面から飛び出さないように組み立てられるので、それぞれの電池セルが伝熱シート３１と直接接触し、効率よく放熱される。 FIG. 3 is an exploded perspective view of the battery module 1 in the longitudinal direction. However, in FIG. 3, the securing plate 67 is omitted. The first battery group 11 is in contact with the first block member 13 and the second block member 14 via the heat transfer sheet 31, and the second battery group 12 is the first block member via the heat transfer sheet 31. 13 and the third block member 15 are contacted. The heat transfer sheet 31 is a sheet-like member having a high thermal conductivity, and is deformed and adhered when pressed. Therefore, by assembling the battery module 1 by the method described later, the heat generated by the first battery group 11 and the second battery group 12 can be efficiently transmitted to the respective block members via the heat transfer sheet 31. Since the double-sided protruding insulating plate 22 and the single-sided protruding insulating plate 23 shown in FIG. 2 are assembled so as not to jump out from the side surfaces of the first battery group 11 and the second battery group 12, each battery cell transfers heat. Direct contact with the sheet 31 and efficient heat dissipation.
　図４は電池モジュール１の積層方向の分解斜視図である。電池モジュール１には、図３に示した部材を積層方向に挟み込むように、上部固縛板１６および下部固縛板１７が設けられる。これにより、第一の電池群１１、第二の電池群１２およびブロック部材３４５の積層方向に直交する面、すなわち図４の上下方向に対向して存在する各面に重なるように、上部固縛板１６および下部固縛板１７が配置される。上部固縛板１６および下部固縛板１７は、長手方向および奥行き方向に延在しており、第二のブロック部材１４および第三のブロック部材１５の位置決めを行う位置決め部である穴４２が設けられる。第二のブロック部材１４および第三のブロック部材１５には穴４２に対応する突起４１が備えられ、突起４１が穴４２に嵌め合わされることにより、上部固縛板１６、下部固縛板１７、第二のブロック部材１４および第三のブロック部材１５の相対的な位置関係が、あらかじめ定めた位置関係となる。したがって、突起４１が穴４２に嵌め合わされた状態で締結ボルト１８を用いて締結することにより、上部固縛板１６と下部固縛板１７とが互いに正対するように位置関係が保たれた状態で、これらの間に第一の電池群１１および第二の電池群１２が挟まれるので、第一の電池群１１および第二の電池群１２が均一に押圧される。 FIG. 4 is an exploded perspective view of the battery module 1 in the stacking direction. The battery module 1 is provided with an upper tying plate 16 and a lower tying plate 17 so as to sandwich the members shown in FIG. 3 in the stacking direction. As a result, the upper lashing is performed so as to overlap the surfaces perpendicular to the stacking direction of the first battery group 11, the second battery group 12, and the block member 345, that is, the surfaces facing each other in the vertical direction of FIG. A plate 16 and a lower lashing plate 17 are arranged. The upper lashing plate 16 and the lower lashing plate 17 extend in the longitudinal direction and the depth direction, and are provided with holes 42 that are positioning portions for positioning the second block member 14 and the third block member 15. It is done. The second block member 14 and the third block member 15 are provided with projections 41 corresponding to the holes 42, and the projections 41 are fitted into the holes 42, so that the upper securing plate 16, the lower securing plate 17, The relative positional relationship between the second block member 14 and the third block member 15 is a predetermined positional relationship. Therefore, when the projection 41 is fitted in the hole 42 and fastened using the fastening bolt 18, the positional relationship is maintained so that the upper securing plate 16 and the lower securing plate 17 face each other. Since the first battery group 11 and the second battery group 12 are sandwiched between them, the first battery group 11 and the second battery group 12 are uniformly pressed.
　さらに、突起４１および穴４２の長手方向の位置は、第一の電池群１１、第二の電池群１２、および第一のブロック部材１３の長手方向の寸法、および伝熱シート３１の厚みに基づき次のように設定されている。すなわち第二のブロック部材１４および第三のブロック部材１５の突起４１が穴４２にそれぞれ嵌め合わされると、第二のブロック部材１４と、第一の電池群１１と、第一のブロック部材１３と、第二の電池群１２と、第三のブロック部材１５とが密着する状態となる。そのため、突起４１が穴４２に嵌め合わされた状態で締結ボルト１８を用いて締結することにより電池モジュール１の長手方向が密着して保持される。このように密着して保持されることにより、伝熱シート３１が押しつぶされて熱伝導面積が大きくなるとともに伝熱シート３１の厚みが減少するので、第一の電池群１１および第二の電池群１２が発する熱が伝熱シート３１を介してそれぞれのブロック部材へ効率よく伝達される。すなわち冷却性能を向上させることができる。 Further, the longitudinal positions of the protrusions 41 and the holes 42 are based on the longitudinal dimensions of the first battery group 11, the second battery group 12, and the first block member 13, and the thickness of the heat transfer sheet 31. It is set as follows. That is, when the projections 41 of the second block member 14 and the third block member 15 are fitted in the holes 42, the second block member 14, the first battery group 11, the first block member 13, The second battery group 12 and the third block member 15 are in close contact with each other. Therefore, the longitudinal direction of the battery module 1 is held tightly by fastening with the fastening bolt 18 in a state where the projection 41 is fitted in the hole 42. Since the heat transfer sheet 31 is crushed to increase the heat conduction area and the thickness of the heat transfer sheet 31 is reduced by being held in close contact in this way, the first battery group 11 and the second battery group. The heat generated by 12 is efficiently transmitted to each block member via the heat transfer sheet 31. That is, the cooling performance can be improved.
　突起４１は、不図示の丸穴であるピン挿入口にピンを圧入することにより作成される。ピン挿入口は丸穴なので他の形状に比べて高精度な加工、すなわち位置精度および寸法精度が容易に実現できる。また、突起４１は穴にピンを挿入しているので、削り出しに比べて強度に優れる。 The protrusion 41 is created by press-fitting a pin into a pin insertion opening which is a round hole (not shown). Since the pin insertion hole is a round hole, high-precision processing, that is, position accuracy and dimensional accuracy can be easily realized compared to other shapes. Moreover, since the protrusion 41 has inserted the pin in the hole, it is excellent in intensity | strength compared with cutting out.
　突起４１および穴４２の奥行き方向の位置を図５を参照して説明する。図５は、電池モジュール１の平面図であり、上部固縛板１６のみが示されている。図５では締結ボルト１８を丸で示し、穴４２を二重丸で示している。さらに締結ボルト１８のそれぞれの位置を判別するために、１８ａ～１８ｇの符号をそれぞれ付与している。図５に示すように、上部固縛板１６の穴４２は電池モジュール１の長手方向の両端であって奥行き方向の略中央に配置される。そのため上部固縛板１６を四隅に配置される締結ボルト１８、すなわち１８ａ、１８ｂ、１８ｆ、１８ｇを用いてバランスよく第一の電池群１１と第二の電池群１２を圧縮固縛した状態を保つことができる。 The position in the depth direction of the protrusion 41 and the hole 42 will be described with reference to FIG. FIG. 5 is a plan view of the battery module 1, and only the upper securing plate 16 is shown. In FIG. 5, the fastening bolt 18 is indicated by a circle, and the hole 42 is indicated by a double circle. Further, in order to discriminate each position of the fastening bolt 18, reference numerals 18a to 18g are given respectively. As shown in FIG. 5, the holes 42 of the upper lashing plate 16 are arranged at both ends in the longitudinal direction of the battery module 1 and at substantially the center in the depth direction. For this reason, the first battery group 11 and the second battery group 12 are kept in a compression-tight state with a good balance using the fastening bolts 18 arranged at the four corners, that is, 18a, 18b, 18f, and 18g. be able to.
　下部固縛板１７に備えられる穴４２も、上部固縛板１６と同様に電池モジュール１の奥行き方向の中央に配置される。また、第二のブロック部材１４および第三のブロック部材１５に備えられる突起４１は、上部固縛板１６の穴４２に対応する位置、すなわち電池モジュール１の奥行き方向の中央に配置される。換言すると、上部固縛板１６および下部固縛板１７の穴４２は、第二のブロック部材１４および第三のブロック部材１５の奥行き方向におけるそれぞれの中央部に配置されている突起４１に対応する位置に、それぞれ形成されている。 The hole 42 provided in the lower lashing plate 17 is also arranged at the center in the depth direction of the battery module 1 in the same manner as the upper lashing plate 16. Further, the protrusion 41 provided on the second block member 14 and the third block member 15 is disposed at a position corresponding to the hole 42 of the upper securing plate 16, that is, at the center in the depth direction of the battery module 1. In other words, the holes 42 of the upper lashing plate 16 and the lower lashing plate 17 correspond to the protrusions 41 arranged at the center portions in the depth direction of the second block member 14 and the third block member 15. Each is formed at a position.
（製造方法）
　電池モジュール１の製造方法を説明する。
　第１の手順として、図２に示すように電池セル２１と両面突起絶縁板２２とを交互に積層し、その上下端に片面突起絶縁板２３を配置して、第一の電池群１１、および第二の電池群１２を形成する。このとき、両面突起絶縁板２２および片面突起絶縁板２３は、第一の電池群１１および第二の電池群１２の側面から飛び出さないように組み立てられる。第２の手順として、図３に示すように長手方向に左手側から第二のブロック部材１４、第一の電池群１１、第一のブロック部材１３、第二の電池群１２、第三のブロック部材１５を配置する。ただしそれぞれのブロック部材と電池群の間には伝熱シート３１を挟む。 (Production method)
A method for manufacturing the battery module 1 will be described.
As a first procedure, as shown in FIG. 2, the battery cells 21 and the double-sided protruding insulating plates 22 are alternately stacked, and the single-sided protruding insulating plates 23 are arranged on the upper and lower ends thereof, and the first battery group 11, and A second battery group 12 is formed. At this time, the double-sided protruding insulating plate 22 and the single-sided protruding insulating plate 23 are assembled so as not to protrude from the side surfaces of the first battery group 11 and the second battery group 12. As a second procedure, as shown in FIG. 3, the second block member 14, the first battery group 11, the first block member 13, the second battery group 12, and the third block from the left hand side in the longitudinal direction. The member 15 is disposed. However, a heat transfer sheet 31 is sandwiched between each block member and the battery group.
　第３の手順として、第２の手順において配置した部材を長手方向に押圧し、各部材が隣接する部材に密着する状態とする。この押圧状態は第５の手順が完了するまで維持する。第４の手順として、第二のブロック部材１４および第三のブロック部材１５に設けられた突起４１と固縛板６７に設けられた穴４２とを嵌め合わせる。第５の手順として、締結ボルト１８を用いて、それぞれのブロック部材と固縛板６７とを固定する。以上の手順により、電池モジュール１が製造される。 As a third procedure, the members arranged in the second procedure are pressed in the longitudinal direction so that each member is in close contact with an adjacent member. This pressed state is maintained until the fifth procedure is completed. As a fourth procedure, the protrusion 41 provided on the second block member 14 and the third block member 15 and the hole 42 provided on the securing plate 67 are fitted together. As a fifth procedure, the fastening members 18 are used to fix the block members and the securing plate 67. The battery module 1 is manufactured by the above procedure.
　上述した第１の実施の形態によれば、次の作用効果が得られる。
（１）電池モジュール１は、複数の電池セル２１が第一の方向、すなわち積層方向に積層された第一の電池群１１と、複数の電池セル２１が積層方向に積層された第二の電池群１２と、第一の電池群１１および第二の電池群１２の間に配置された第一のブロック部材１３と、第一のブロック部材１３と共に第一の電池群１１を挟持する第二のブロック部材１４と、第一のブロック部材１３と共に第二の電池群１２を挟持する第三のブロック部材１５と、第一の電池群１１、第二の電池群１２、第一のブロック部材１３、第二のブロック部材１４、および第三のブロック部材１５を固縛する固縛板６７とを備える。第一の電池群１１、第二の電池群１２、第一のブロック部材１３、第二のブロック部材１４、および第三のブロック部材１５は積層方向と直交する第二の方向、すなわち長手方向に並べて配置される。固縛板６７は、第一の電池群１１、第二の電池群１２、第一のブロック部材１３、第二のブロック部材１４、および第三のブロック部材１５と積層方向に重ねて配置される。固縛板６７は、第二のブロック部材１４、および第三のブロック部材１５の位置決めを行う位置決め部、すなわち穴４２を備える。 According to the first embodiment described above, the following operational effects are obtained.
(1) The battery module 1 includes a first battery group 11 in which a plurality of battery cells 21 are stacked in the first direction, that is, a stacking direction, and a second battery in which the plurality of battery cells 21 are stacked in the stacking direction. A second block that sandwiches the first battery group 11 together with the first block member 13 and the first block member 13 disposed between the group 12, the first battery group 11 and the second battery group 12. A block member 14, a third block member 15 that sandwiches the second battery group 12 together with the first block member 13, a first battery group 11, a second battery group 12, a first block member 13, A second block member 14 and a securing plate 67 for securing the third block member 15 are provided. The first battery group 11, the second battery group 12, the first block member 13, the second block member 14, and the third block member 15 are in a second direction orthogonal to the stacking direction, that is, in the longitudinal direction. Arranged side by side. The securing plate 67 is disposed so as to overlap the first battery group 11, the second battery group 12, the first block member 13, the second block member 14, and the third block member 15 in the stacking direction. . The securing plate 67 includes a positioning portion that positions the second block member 14 and the third block member 15, that is, a hole 42.
　電池モジュール１は、突起４１および穴４２により位置決めがされるので、上部固縛板１６と下部固縛板１７の位置がずれない。そのため第一の電池群１１と第二の電池群１２とを均等に固縛できる。また、一対の固縛板６７すなわち上部固縛板１６、および下部固縛板１７を用いて第一の電池群１１、および第二の電池群１２を一度に固縛できるので、第一の電池群１１、および第二の電池群１２を個別に固縛する場合に比べて組み立て工数が削減でき、作成効率が良い。すなわち電池モジュール１は複数の電池群を効率よく均等に固縛できる。 Since the battery module 1 is positioned by the protrusion 41 and the hole 42, the positions of the upper lashing plate 16 and the lower lashing plate 17 do not shift. Therefore, the first battery group 11 and the second battery group 12 can be evenly secured. Further, since the first battery group 11 and the second battery group 12 can be secured at a time using the pair of securing plates 67, that is, the upper securing plate 16 and the lower securing plate 17, the first battery Compared to the case where the group 11 and the second battery group 12 are individually secured, the number of assembling steps can be reduced, and the production efficiency is good. That is, the battery module 1 can bind a plurality of battery groups efficiently and uniformly.
（２）第一の電池群１１および第二の電池群１２のそれぞれは、積層方向において第二のブロック部材１４と第三のブロック部材１５よりも固縛板６７の側に突出している。穴４２が形成される固縛板６７の面は、第一の電池群１１および第二の電池群１２よりも第二のブロック部材１４および第三のブロック部材１５の側に突出している。
　そのため、固縛板６７とブロック部材３４５とを締結する締結ボルト１８が存在することにより電池モジュール１の積層方向の高さが高くなることを防止し、電池モジュール１を低背化できる。具体的には、本実施の形態ではブロック部材３４５の積層方向の寸法と、第一の電池群１１、および第二の電池群１２の積層方向の寸法との差が十分に大きいので、締結ボルト１８の頭部は第一の電池群１１と第二の電池群１２との間に隠れており、電池モジュール１が低背化されている。 (2) Each of the first battery group 11 and the second battery group 12 protrudes closer to the lashing plate 67 than the second block member 14 and the third block member 15 in the stacking direction. The surface of the securing plate 67 in which the hole 42 is formed protrudes toward the second block member 14 and the third block member 15 rather than the first battery group 11 and the second battery group 12.
Therefore, the presence of the fastening bolt 18 that fastens the securing plate 67 and the block member 345 prevents the battery module 1 from increasing in height in the stacking direction, and the battery module 1 can be reduced in height. Specifically, in this embodiment, the difference between the dimension in the stacking direction of the block member 345 and the dimension in the stacking direction of the first battery group 11 and the second battery group 12 is sufficiently large. The head of 18 is hidden between the first battery group 11 and the second battery group 12, and the battery module 1 is lowered in height.
（３）位置決め部は穴４２である。第二のブロック部材１４および第三のブロック部材１５は凸部、すなわち突起４１を有し、突起４１は穴４２に嵌め合わされている。突起４１を下穴と位置決めピンの組み合わせで構成することにより、位置精度および寸法精度を高くすることができ、削り出しに比べて強度に優れる。 (3) The positioning part is the hole 42. The second block member 14 and the third block member 15 have convex portions, that is, projections 41, and the projections 41 are fitted in the holes 42. By configuring the protrusion 41 with a combination of a pilot hole and a positioning pin, the positional accuracy and dimensional accuracy can be increased, and the strength is superior to that of machining.
（４）固縛板６７は、積層方向および長手方向に直交する第三の方向、すなわち奥行き方向に延在する。固縛板６７の位置決め部は、第二のブロック部材１４および第三のブロック部材１５の奥行き方向におけるそれぞれの中央部に対応する位置に形成されている。そのため締結ボルト１８を上部固縛板１６の４隅に配置してバランスよく第一の電池群１１と第二の電池群１２を圧縮固縛した状態を保つことができる。上部固縛板１６の４隅に配置される締結ボルト１８とは、たとえば図５の締結ボルト１８ａ、１８ｂ、１８ｆ、１８ｇである。 (4) The securing plate 67 extends in the third direction orthogonal to the stacking direction and the longitudinal direction, that is, the depth direction. The positioning portions of the securing plate 67 are formed at positions corresponding to the central portions of the second block member 14 and the third block member 15 in the depth direction. For this reason, the fastening bolts 18 are arranged at the four corners of the upper lashing plate 16 so that the first battery group 11 and the second battery group 12 can be kept in a compression-tight state with good balance. The fastening bolts 18 disposed at the four corners of the upper securing plate 16 are, for example, the fastening bolts 18a, 18b, 18f, and 18g shown in FIG.
（５）電池モジュール１の製造方法は、第一の電池群１１、第二の電池群１２、第一のブロック部材１３、第二のブロック部材１４、および第三のブロック部材１５を積層方向と直交する長手方向に配置し、第二のブロック部材１４および第三のブロック部材１５を第一の電池群１１および第二の電池群１２を挟持する方向に押圧し、押圧を維持しつつ、位置決め部による位置決めがされた状態で固縛板６７を第一のブロック部材１３、第二のブロック部材１４、および第三のブロック部材１５と締結する。そのため、第一の電池群１１、第二の電池群１２を簡便に均等に固縛できる。 (5) The manufacturing method of the battery module 1 includes the first battery group 11, the second battery group 12, the first block member 13, the second block member 14, and the third block member 15 in the stacking direction. Arranged in the orthogonal longitudinal direction, the second block member 14 and the third block member 15 are pressed in the direction of sandwiching the first battery group 11 and the second battery group 12, and positioning is performed while maintaining the pressure. The lashing plate 67 is fastened to the first block member 13, the second block member 14, and the third block member 15 in a state where the positioning is performed by the portion. Therefore, the first battery group 11 and the second battery group 12 can be easily and evenly secured.
－変形例１－
　第二のブロック部材１４、および第三のブロック部材１５に形成される突起４１は、ブロック部材と一体に形成されてもよい。突起４１は、たとえば切削加工により形成される。図６は、変形例１における突起４１および穴４２を示す図である。上述した実施の形態と同様に、上部固縛板１６に設けられた穴４２に、第二のブロック部材１４に設けられた突起４１が嵌め合わされる。 -Modification 1-
The protrusions 41 formed on the second block member 14 and the third block member 15 may be formed integrally with the block member. The protrusion 41 is formed by cutting, for example. FIG. 6 is a diagram illustrating the protrusion 41 and the hole 42 in the first modification. Similar to the above-described embodiment, the protrusion 41 provided on the second block member 14 is fitted into the hole 42 provided on the upper securing plate 16.
－変形例２－
　固縛板６７に突起が形成され、第二のブロック部材１４および第三のブロック部材１５に穴が形成されてもよい。図７は、変形例２において固縛板６７に形成される突起６１と、第二のブロック部材１４および第三のブロック部材１５に形成される穴６２とを示す図である。突起６１は、たとえば板金加工により形成され、穴６２は突起６１の形状に合致するようにたとえば４角穴が形成される。
　この変形例２によれば、電池モジュール１は次の構成を備える。
（１）位置決め部は凸部、すなわち突起６１であり、第二のブロック部材および第三のブロック部材は穴６２を有する。固縛板６７の突起６１は、第二のブロック部材および第三のブロック部材の穴６２にそれぞれ嵌め合わされている。 -Modification 2-
Protrusions may be formed on the securing plate 67, and holes may be formed in the second block member 14 and the third block member 15. FIG. 7 is a diagram illustrating protrusions 61 formed on the securing plate 67 and holes 62 formed in the second block member 14 and the third block member 15 in Modification 2. The protrusion 61 is formed by, for example, sheet metal processing, and the hole 62 is formed, for example, as a square hole so as to match the shape of the protrusion 61.
According to the second modification, the battery module 1 has the following configuration.
(1) The positioning portion is a convex portion, that is, a protrusion 61, and the second block member and the third block member have holes 62. The protrusions 61 of the securing plate 67 are fitted into the holes 62 of the second block member and the third block member, respectively.
－変形例３－
　電池モジュール１は、３以上の電池群を備えてもよい。その場合は、電池群の数にあわせて第一のブロック部材１３および伝熱シート３１を追加するとともに、固縛板６７の長手方向の寸法を調整する。ただし固縛板６７の穴４２の位置は、図５を用いて説明したとおり電池モジュール１の長手方向の両端であって奥行き方向の中央である。第二のブロック部材１４、および第三のブロック部材１５の構成は実施の形態と同様である。すなわち、電池モジュール１は、固縛する電池群の数にかかわらず固縛板６７の４隅を締結ボルト１８で締結することで、電池群をバランスよく圧縮固縛した状態を保つ。 -Modification 3-
The battery module 1 may include three or more battery groups. In that case, the first block member 13 and the heat transfer sheet 31 are added according to the number of battery groups, and the longitudinal dimension of the lashing plate 67 is adjusted. However, the positions of the holes 42 of the securing plate 67 are both ends in the longitudinal direction of the battery module 1 and the center in the depth direction as described with reference to FIG. The configurations of the second block member 14 and the third block member 15 are the same as in the embodiment. That is, the battery module 1 keeps the battery group compressed and secured in a balanced manner by fastening the four corners of the securing plate 67 with the fastening bolts 18 regardless of the number of battery groups to be secured.
－変形例４－
　電池モジュール１が収納される筐体の底面を下部固縛板１７として用いてもよい。この場合は、筐体の底面を下部固縛板１７の形状とし、図３に示す部材を長手方向に押圧してその筐体に挿入するとともに上部固縛板１６と係合させ、締結ボルト１８を用いて固定する。 -Modification 4-
The bottom surface of the housing in which the battery module 1 is housed may be used as the lower securing plate 17. In this case, the bottom surface of the housing is formed into the shape of the lower lashing plate 17, the member shown in FIG. Use to fix.
－変形例５－
　上述した実施の形態では、電池モジュールとブロック部材とを密着させるために伝熱シート３１を用いたが、伝熱シート３１に代えて熱伝導率が空気よりも高い部材、たとえば熱伝導グリスなどを用いてもよい。 -Modification 5-
In the above-described embodiment, the heat transfer sheet 31 is used to bring the battery module and the block member into close contact. However, instead of the heat transfer sheet 31, a member having a higher thermal conductivity than air, such as a heat transfer grease, is used. It may be used.
　上記では、種々の実施の形態および変形例を説明したが、本発明はこれらの内容に限定されるものではない。本発明の技術的思想の範囲内で考えられるその他の態様も本発明の範囲内に含まれる。 Although various embodiments and modifications have been described above, the present invention is not limited to these contents. Other embodiments conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.
　次の優先権基礎出願の開示内容は引用文としてここに組み込まれる。
　日本国特許出願２０１７年第０１９８６９号（２０１７年２月６日出願） The disclosure of the following priority application is hereby incorporated by reference.
Japanese Patent Application No. 2017 No. 019869 (filed on Feb. 6, 2017)
１…電池モジュール
１１…第一の電池群
１２…第二の電池群
１３…第一のブロック部材
１４…第二のブロック部材
１５…第三のブロック部材
１６…上部固縛板
１７…下部固縛板
１８…締結ボルト
２１…電池セル
２２…両面突起絶縁板
２３…片面突起絶縁板
３１…伝熱シート
４１…突起
４２…穴
６１…突起
６２…穴
６７…固縛板
３４５…ブロック部材 DESCRIPTION OF SYMBOLS 1 ... Battery module 11 ... 1st battery group 12 ... 2nd battery group 13 ... 1st block member 14 ... 2nd block member 15 ... 3rd block member 16 ... Upper lashing board 17 ... Lower lash Plate 18 ... Fastening bolt 21 ... Battery cell 22 ... Double-sided projection insulating plate 23 ... Single-sided projection insulating plate 31 ... Heat transfer sheet 41 ... Projection 42 ... Hole 61 ... Protrusion 62 ... Hole 67 ... Tie plate 345 ... Block member

Claims (6)

  1. 　複数の電池セルが第一の方向に積層された第一の電池群と、
    　複数の電池セルが前記第一の方向に積層された第二の電池群と、
    　前記第一の電池群および前記第二の電池群の間に配置された第一のブロック部材と、
    　前記第一のブロック部材と共に前記第一の電池群を挟持する第二のブロック部材と、
    　前記第一のブロック部材と共に前記第二の電池群を挟持する第三のブロック部材と、
    　前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材を固縛する固縛板とを備え、
    　前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材は前記第一の方向と直交する第二の方向に並べて配置され、
    　前記固縛板は、前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材と前記第一の方向に重ねて配置され、
    　前記固縛板は、前記第二のブロック部材、および前記第三のブロック部材の位置決めを行う位置決め部を備える電池モジュール。     A first battery group in which a plurality of battery cells are stacked in a first direction;
    A second battery group in which a plurality of battery cells are stacked in the first direction;
    A first block member disposed between the first battery group and the second battery group;
    A second block member sandwiching the first battery group together with the first block member;
    A third block member sandwiching the second battery group together with the first block member;
    The first battery group, the second battery group, the first block member, the second block member, and a securing plate for securing the third block member,
    The first battery group, the second battery group, the first block member, the second block member, and the third block member are arranged in a second direction orthogonal to the first direction. Arranged,
    The securing plate is overlapped with the first battery group, the second battery group, the first block member, the second block member, and the third block member in the first direction. Arranged,
    The said securing board is a battery module provided with the positioning part which positions said 2nd block member and said 3rd block member.
  2. 　請求項１に記載の電池モジュールにおいて、
    　前記第一の電池群および前記第二の電池群のそれぞれは、前記第一の方向において前記第二のブロック部材と前記第三のブロック部材よりも前記固縛板の側に突出しており、
    　前記位置決め部が形成される前記固縛板の面は、前記第一の電池群および前記第二の電池群よりも前記第二のブロック部材および前記第三のブロック部材の側に突出している電池モジュール。     The battery module according to claim 1,
    Each of the first battery group and the second battery group protrudes closer to the lashing plate than the second block member and the third block member in the first direction,
    The surface of the lashing plate on which the positioning portion is formed projects from the first battery group and the second battery group toward the second block member and the third block member. module.
  3. 　請求項１又は２に記載の電池モジュールにおいて、
    　前記位置決め部は穴であり、
    　前記第二のブロック部材および前記第三のブロック部材は凸部を有し、
    　前記凸部は前記穴にそれぞれ嵌め合わされている電池モジュール。     The battery module according to claim 1 or 2,
    The positioning portion is a hole;
    The second block member and the third block member have convex portions,
    The battery module in which the convex portions are respectively fitted in the holes.
  4. 　請求項１又は２に記載の電池モジュールにおいて、
    　前記位置決め部は凸部であり、
    　前記第二のブロック部材および前記第三のブロック部材は穴を有し、
    　前記凸部は前記穴にそれぞれ嵌め合わされている電池モジュール。     The battery module according to claim 1 or 2,
    The positioning part is a convex part,
    The second block member and the third block member have holes,
    The battery module in which the convex portions are respectively fitted in the holes.
  5. 　請求項１から請求項４までのいずれか一項に記載の電池モジュールにおいて、
    　前記固縛板は、前記第一の方向および前記第二の方向に直交する第三の方向に延在し、
    　前記位置決め部は、前記第二のブロック部材および前記第三のブロック部材の前記第三の方向におけるそれぞれの中央部に対応する位置に形成されている電池モジュール。     In the battery module according to any one of claims 1 to 4,
    The securing plate extends in a third direction orthogonal to the first direction and the second direction;
    The positioning portion is a battery module formed at a position corresponding to each central portion in the third direction of the second block member and the third block member.
  6. 　複数の電池セルが第一の方向に積層された第一の電池群と、複数の電池セルが前記第一の方向に積層された第二の電池群と、前記第一の電池群および前記第二の電池群の間に配置される第一のブロック部材と、前記第一のブロック部材と共に前記第一の電池群を挟持する第二のブロック部材と、前記第一のブロック部材と共に前記第二の電池群を挟持する第三のブロック部材と、前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材を固縛する固縛板とを備える電池モジュールの製造方法であって、
    　前記固縛板は、前記第二のブロック部材、および前記第三のブロック部材の位置決めを行う位置決め部を備え、
    　前記第一の電池群、前記第二の電池群、前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材を前記第一の方向と直交する第二の方向に並べて配置し、
    　前記第二のブロック部材および前記第三のブロック部材を前記第一の電池群および前記第二の電池群を挟持する方向に押圧し、
    　前記押圧を維持しつつ、前記位置決め部による位置決めがされた状態で前記固縛板を前記第一のブロック部材、前記第二のブロック部材、および前記第三のブロック部材と締結する、電池モジュールの製造方法。     A first battery group in which a plurality of battery cells are stacked in a first direction; a second battery group in which a plurality of battery cells are stacked in the first direction; the first battery group; A first block member disposed between two battery groups, a second block member sandwiching the first battery group together with the first block member, and the second block member together with the first block member. A third block member sandwiching the battery group, the first battery group, the second battery group, the first block member, the second block member, and the third block member. A method of manufacturing a battery module comprising a tying plate for binding,
    The lashing plate includes a positioning portion for positioning the second block member and the third block member,
    The first battery group, the second battery group, the first block member, the second block member, and the third block member are arranged in a second direction orthogonal to the first direction. Place and
    Pressing the second block member and the third block member in a direction to sandwich the first battery group and the second battery group;
    The battery module is configured to fasten the securing plate with the first block member, the second block member, and the third block member in a state where the positioning is performed by the positioning unit while maintaining the pressing. Production method.
PCT/JP2018/003858 2017-02-06 2018-02-05 Battery module and method for producing battery module WO2018143464A1 (en)

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