WO2014141765A1 - 組電池 - Google Patents

組電池 Download PDF

Info

Publication number
WO2014141765A1
WO2014141765A1 PCT/JP2014/052194 JP2014052194W WO2014141765A1 WO 2014141765 A1 WO2014141765 A1 WO 2014141765A1 JP 2014052194 W JP2014052194 W JP 2014052194W WO 2014141765 A1 WO2014141765 A1 WO 2014141765A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembled battery
insulating film
battery
spacer
exterior insulating
Prior art date
Application number
PCT/JP2014/052194
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
吉田　正
Original Assignee
日立オートモティブシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立オートモティブシステムズ株式会社 filed Critical 日立オートモティブシステムズ株式会社
Publication of WO2014141765A1 publication Critical patent/WO2014141765A1/ja

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • 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
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • 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

Definitions

  • the present invention relates to an assembled battery using a secondary battery such as a lithium ion secondary battery.
  • the lithium ion secondary battery In the reaction of the lithium ion secondary battery, the lithium ion secondary battery swells by being inserted into the negative electrode during charging. If this state is left as it is, it will lead to deterioration of the lithium ion secondary battery and reduce the life of the lithium ion secondary battery. Therefore, it is necessary to tie up lithium ion secondary batteries and suppress swelling.
  • lithium ion secondary batteries have a structure that insulates the outer periphery of the battery can in order to increase safety.
  • a power storage device using a metal case includes a resin frame directly fixed to a part of the outer surface of the metal case, and at least an exposed metal surface on the outer surface of the metal case where the resin frame is not fixed is insulated.
  • a secondary battery covered with a film is known (see Patent Document 1).
  • a graphite-based active material may be used for the negative electrode.
  • the dimensional change ratio of the graphite-based active material is as large as about 10% between full charge and complete discharge. If the expansion and contraction associated with charging / discharging is allowed as it is, the performance of the battery is greatly reduced. However, if the battery is restrained from the outside, the performance deterioration can be greatly suppressed. Hereinafter, restraining the battery from the outside is referred to as lashing.
  • the assembled battery according to the present invention is formed by laminating a plurality of flat batteries having a pair of wide surfaces facing the battery container thickness direction on the surface of the battery container and the wide surfaces of adjacent flat batteries facing each other.
  • a holding member that holds a plurality of flat batteries in a state where compressive force is applied, and an exterior insulating film that covers the outer periphery of the battery container except for a part of the wide surface, the holding members face each other between adjacent flat batteries
  • a spacer that is provided between the wide surfaces and contacts the non-protected portion of the wide surface that is not covered with the exterior insulating film at the contact portion.
  • the present invention deterioration of the battery characteristics of the flat battery can be prevented, and the durability of the assembled battery can be greatly improved.
  • FIG. 1 is an exploded view showing the overall configuration of the assembled battery 100 of the present embodiment.
  • FIG. 2 is an exploded view showing a stacked state of the unit cells 10 constituting the assembled battery 100
  • FIG. 3 is an enlarged view of a part of FIG.
  • the assembled battery 100 includes a plurality of unit cells 10, a battery cell holder 40, and a fixing member 120.
  • the output of the assembled battery 100 is determined from the specifications of a mobile object such as an automobile in which the assembled battery 100 is incorporated and the power storage system, and the number of single cells 10 incorporated in the assembled battery 100 is determined.
  • the number of unit cells 10 incorporated in the assembled battery 100 is about several tens of cells.
  • a battery pack configured by incorporating a plurality of the assembled batteries 100 is mounted on a moving body such as an automobile, a power storage system, or the like.
  • the stacked body 110 in which a plurality of flat unit cells 10 are stacked has a compressive force applied to the stacking direction of the single cells 10 (hereinafter simply referred to as the stacking direction) by the fixing member 120. It is restrained (fixed) by.
  • the stacked body 110 is formed by stacking a plurality of unit cells 10 held by a battery cell holder 40.
  • restraining the stacked body 110 in a state where a compressive force is applied to each unit cell 10 in the stacking direction by the fixing member 120 is also referred to as lashing.
  • the compressive force in the stacking direction applied to each unit cell 10 by the fixing member 120 is also referred to as lashing force.
  • the fixing member includes a pair of end plates 121 and a pair of side plates 126.
  • Each of the pair of end plates 121 is a thick plate-like member that abuts the stacked body 110 in the stacking direction of the unit cells and applies a securing force to the stacked body 110.
  • a screw hole 122 into which a fastening bolt 125 for fastening to the side plate 126 is screwed is provided on a side surface extending in the thickness direction of each end plate 121.
  • the pair of side plates 126 are plate-like members that fix the pair of end plates 121 in a state in which a binding force is applied to the laminate 110 with the pair of end plates 121.
  • Each side plate 126 is provided with a plurality of openings 127 and a plurality of through holes 128.
  • the opening 127 is an opening serving as an air inlet / outlet for air-cooling the unit cell 10, and is provided at a position corresponding to a position of a side opening 43 described later.
  • the through hole 128 is a through hole through which a fastening bolt 125 for fastening the side plate 126 and the end plate 121 is inserted.
  • the battery cell holder 40 includes an intermediate holder 41 provided between two adjacent unit cells 10 and the unit cell 10 positioned on the outermost side among the stacked unit cells 10. And an end holder 46 provided on the outside.
  • the battery cell holder 40 is made of an electrically insulating resin.
  • the intermediate holder 41 is perpendicular to the narrow surface 13, which is a side surface extending in the thickness direction of the unit cell 10 to be described later, and the frame 42 that supports the bottom surface 14 of the unit cell 10, and the narrow surface 13 and the bottom surface 14. And a spacer 51 that directly contacts the wide surface 12 of the unit cell 10 to be described later.
  • the intermediate holder 41 is provided with side openings 43 on both sides serving as air inlets and outlets for air-cooling the unit cell 10.
  • the end holder 46 includes a frame 47 that supports the narrow surface 13 and the bottom surface 14 of the unit cell 10 to be described later, and a spacer 52 that directly contacts the wide surface 12 of the unit cell 10.
  • the spacer 52 is in contact with the side plate 126 on the surface facing the end holder 46.
  • a plurality of spacers 51 and spacers 52 are provided apart from each other in the vertical direction.
  • FIG. 4 is a perspective view of the unit cell 10 around which the exterior insulating film 26 is wound.
  • the unit cell 10 is a flat lithium ion secondary battery, in which a non-illustrated wound group of battery cells is accommodated in a flat bottomed rectangular tube container (battery container) 11 and an upper lid 15 is covered.
  • the upper lid 15 is provided with a battery terminal 16.
  • the battery case 11 has a wide surface 12, a narrow surface 13, and a bottom surface 14.
  • the wide surface 12 is a pair of surfaces facing the thickness direction of the battery container 11 among the side surfaces of the battery container 11.
  • the narrow surface 13 is a pair of surfaces extending in the thickness direction of the battery case 11 among the side surfaces of the battery case 11.
  • the bottom surface 14 is the bottom surface of the battery container 11.
  • an exterior insulating film 26 is wound at a plurality of locations apart in the vertical direction.
  • the exterior insulating film 26 is an insulating material for preventing an unintended electrical short circuit, and an adhesive layer (not shown) for attaching to the battery container 11 is provided on one surface.
  • the exterior insulation film 26 has a number of wrinkles, and is attached so that both ends of the strip-like exterior insulation film 26 overlap, for example, the narrow surface 13 of the battery container 11.
  • the side surface of the battery case 11 is exposed at a portion where the exterior insulating film 26 is not wound.
  • a portion around which the exterior insulating film 26 is wound is referred to as a protection portion 19, and a portion where the exterior insulation film 26 is not wound is referred to as a non-protection portion 17.
  • the exposed part on the wide surface 12 is called a spacer contact part 18.
  • FIG. 5 is a cross-sectional view schematically showing a state in which the spacer 51 of the intermediate holder 41 sandwiched between the wide surfaces 12 of the adjacent unit cells 10 contacts the spacer contact portion 18.
  • the contact state between the spacer 52 provided on the end holder 46 and the spacer contact portion 18 is the same as the contact state between the spacer 51 and the spacer contact portion 18, the illustration is omitted. .
  • each spacer 51 comes into contact with the spacer contact portion 18.
  • each spacer 52 comes into contact with the spacer contact portion 18.
  • the exterior insulating film 26 is spaced apart in the vertical direction so that the spacer 51 and the spacer 52 and the non-protecting portion 17 (that is, the exposed surface of the battery container 11) on the wide surface 12 are in direct contact with each other. It is rolled up.
  • a contact portion (contact surface) of the spacers 51 and 52 with the spacer contact portion 18 is referred to as a contact portion 54.
  • the unit cell 10 is held by the intermediate holder 41 and the end holder 46 to form a laminated body 110, and a pair of end plates 121 and a pair of side plates are applied with a compression force sandwiched between the laminated bodies 110 from the laminating direction.
  • the fastening body 126 is fastened with the fastening bolt 125
  • the laminate 110 is secured with a predetermined compressive force. That is, the end plate 121 and the spacer 52 of the end holder 46 come into contact with each other, and the lashing force is transmitted to the wide surface of the outermost unit cell 10.
  • the securing force transmitted to the outermost unit cell 10 transmits the securing force to the adjacent unit cell 10 via the spacer 51 that is in contact with the wide surfaces 12. Therefore, a securing force is applied to the wide surfaces 12 of all the cells 10 constituting the stacked body 110.
  • FIG. 6 is data showing the degree of improvement in battery characteristic deterioration caused by applying a securing force.
  • the horizontal axis represents the number of charge / discharge cycles, that is, the number of cycles
  • the vertical axis represents the capacity and the rate of change of DCR that serve as a guideline for characteristics.
  • the capacity is the amount of electricity that the battery can store, and it is desirable that the capacity does not decrease over a long period of time.
  • DCR is the electric resistance inside the battery, and it is desirable that it does not increase over a long period of time.
  • FIG. 7 is a cross-sectional view schematically showing a state in which the spacer 51 of the intermediate holder 41 sandwiched between the wide surfaces 12 of the adjacent unit cells 10 is in contact with the exterior insulating film 26 attached to the wide surface 12.
  • the exterior insulating film 26 has an adhesive layer to be attached to the battery container 11, and the film material itself needs to have flexibility in order to be wound around the battery container 11. If pressure due to the lashing force is continuously applied to such a material, the exterior insulating film 26 maintains its thickness in the initial operation state. However, during the operation over a long period of time, the exterior insulating film 26 is creep-deformed and thinned as shown in FIG. If it will be in this state, the securing force will fall and it will accelerate
  • the thickness of the exterior insulating film 26 is usually about 0.05 mm. Therefore, the total of the wide surfaces 12 on both sides of the battery container 11 is about 0.1 mm. The extent to which the securing force is released due to this thickness change will be described with reference to FIG.
  • FIG. 9 is data showing an example of a change in the thickness of the unit cell 10 when the securing force, that is, the load is increased.
  • the thickness (cell thickness) of the unit cell 10 when the load 2000 N is applied to the wide surface 12 of the unit cell 10 is 26.92 mm. This thickness is used as a design dimension when the battery pack 100 is incorporated.
  • the cell thickness at the time of charging / discharging remains fixed at the design dimension of 26.92 mm.
  • the load when SOC becomes 0% due to discharge decreases to about 1000N
  • the load when SOC reaches 100% due to charging increases to about 4000N. .
  • the cell thickness is allowed to increase by 0.1 mm, which corresponds to the thickness of the pair of wide surfaces 12 of the exterior insulating film 26, the cell thickness is 27.02 mm.
  • the spacer 51 and the non-protecting portion 17 on the wide surface 12 are in direct contact with each other, so that they are not affected by the creep deformation of the exterior insulating film 26.
  • the assembled battery 100 of the present embodiment has the following operational effects. (1) In the state where a plurality of flat unit cells 10 are stacked with the wide surfaces 12 facing each other to form a stacked body 110, and a compressive force is applied in the stacking direction of the unit cells 10 by the fixing member 120. Configured to hold. The spacer 51 is provided between the wide surfaces 12 facing each other in the adjacent unit cells 10 and is configured to directly contact the wide surface 12. Thereby, since each cell 10 can be stably secured for a long period of time, deterioration of battery characteristics can be prevented and the durability of the assembled battery 100 can be greatly improved.
  • FIG. 10 is a diagram showing the exterior insulating film 27 of the present embodiment.
  • the exterior insulating film 27 of the present embodiment has a plurality of openings 28.
  • the shape of each opening 28 and the position of each opening 28 on the exterior insulating film 27 are such that each opening 28 is positioned on the pair of wide surfaces 12 when the exterior insulating film 27 is wound around the side surface of the battery container 11. Is set to Further, the shape of each opening 28 and the position of each opening 28 on the exterior insulating film 27 are such that when the intermediate holder 41 and the end holder 42 are attached to the unit cell 10, the spacers 51, It is set so as to coincide with the position where 52 abuts.
  • the protection part 19 and the non-protection part 17 are provided on the wide surface 12 at the same position as the first embodiment, The narrow surface 13 is covered with the exterior insulating film 27 without a break.
  • the assembled battery 100 of the present embodiment has the following operational effects in addition to the operational effects of the first embodiment.
  • the exterior insulating film 27 wound around the side surface of the unit cell 10 is a single sheet, and a plurality of openings 28 are provided.
  • the shape of each opening 28 and the position of each opening 28 on the exterior insulating film 27 are such that when the intermediate holder 41 and the end holder 42 are attached to the unit cell 10, the spacer 51, It was made to correspond with the position which 52 contact
  • one exterior insulation film 27 should just be wound per cell 10, the efficiency of the process of a film and the operation
  • FIG. 12 is a cross-sectional view schematically showing a state in which the spacer 51 of the intermediate holder 41 sandwiched between the wide surfaces 12 of adjacent unit cells 10 abuts against the spacer abutting portion 18 in the present embodiment. It is.
  • each spacer 51 comes into contact with the spacer contact portion 18 at the contact portion 54.
  • the dimension of the spacer contact portion 18 in the illustrated vertical direction is slightly larger than the dimension of the spacer 51 in the illustrated vertical direction.
  • the vertical dimension of the spacer abutting portion 18 and the vertical dimension of the spacer 51 are equal.
  • the vertical dimension of the spacer abutting portion 18 is set to the upper and lower dimensions of the spacer 51 so that the spacer 51 reliably contacts the spacer abutting portion 18. It is necessary to make it larger than the dimension in the direction by the above error. Therefore, a gap 29 is formed between the spacer 51 and the exterior insulating film 26 on the upper and lower sides of the spacer 51, and the metal surface that is the surface of the battery container 11 is exposed. There is a risk of an electrical short circuit from this exposed portion.
  • the gap 29 is filled with an insulating resin 61 having electrical insulating properties so that the surface of the battery container 11 is not exposed.
  • the assembled battery 100 of the present embodiment has the following operational effects in addition to the operational effects of the first and second embodiments.
  • the vertical dimension of the spacer abutting portion 18 in the figure is made larger than the vertical dimension of the spacer 51 in the figure by the above error. Accordingly, the contact portion 54 of the spacer 51 does not press the exterior insulating film 26 in the laminating direction, so that the above-described creep deformation of the exterior insulating film 26 does not occur and the transmission of the securing force is adversely affected. Absent. Therefore, since each cell 10 can be stably secured for a long period of time, the battery characteristics can be prevented from deteriorating and the durability of the assembled battery 100 can be greatly improved.
  • FIG. 14 schematically shows the positional relationship between the spacer 53 of the intermediate holder 41 sandwiched between the wide surfaces 12 of the adjacent unit cells 10, the spacer contact portion 18, and the exterior insulating film 26 in the present embodiment.
  • FIG. 14 When the unit cell 10 is held by the intermediate holder 41, each spacer 53 comes into contact with the spacer contact portion 18 at the contact portion 54. Further, the spacer 53 of the present embodiment has an overlapping portion 55 that overlaps with the protective portion 19 covered with the exterior insulating film 26 and the exterior insulating film 26.
  • the overlapping portion 55 is a portion extending upward and downward in the drawing relative to the abutting portion 54 of the spacer 53, and the thickness in the horizontal direction in the drawing (that is, the stacking direction of the unit cells 10) is the same. It is thinner than the contact portion 54.
  • the thickness of the overlapping portion 55 in the stacking direction is set so as to be in close contact with the exterior insulating film 26 wound around the unit cell 10 when the unit cell 10 is held by the intermediate holder 41.
  • the thickness in the stacking direction of the overlapping portion 55 does not contribute to the transmission of the securing force at the contact surface between the overlapping portion 55 and the exterior insulating film 26 so as not to cause the creep deformation of the exterior insulating film 26 described above.
  • the gap 29 is set so as to ensure adequate sealing. That is, for example, the thickness of the overlapping portion 55 in the stacking direction is set to be thinner than the thickness of the contact portion 54 in the stacking direction by about twice the thickness of the exterior insulating film 26.
  • the assembled battery 100 of the present embodiment has the following operational effects in addition to the operational effects of the first to third embodiments.
  • (1) The overlapping part 55 which overlaps the protective part 19 covered with the exterior insulation film 26 and the exterior insulation film 26 on the spacer 53 is provided. Thereby, since the gap 29 between the contact portion 54 and the exterior insulating film 26 is covered with the overlapping portion 55, the insulation against an electrical short circuit is improved, and the durability of the assembled battery 100 can be improved.
  • the thickness of the overlapping portion 55 in the stacking direction does not contribute to the transmission of the securing force at the contact surface between the overlapping portion 55 and the exterior insulating film 26 so as not to cause the creep deformation of the exterior insulating film 26 described above.
  • it is set so that the sealing property of the gap 29 is appropriately secured from the viewpoint of securing electrical insulation. Thereby, the change of the securing force due to creep deformation of the exterior insulating film 26 does not occur. Therefore, since each cell 10 can be stably secured for a long period of time, the battery characteristics can be prevented from deteriorating and the durability of the assembled battery 100 can be improved.
  • the shape of the overlapping portion 55 described above is an example, and the present invention is not limited to this.
  • a gradually decreasing portion 56 in which the thickness in the stacking direction gradually decreases as the distance from the contact portion 54 in the vertical direction in the drawing may be provided between the overlapping portion 55 and the contact portion 54.
  • the surface is a flat surface, but may be a curved surface as shown in FIG.
  • the gradual decreasing portion 57 shown in FIG. 16 gradually increases in inclination as it moves away from the abutting portion 54 in the illustrated vertical direction, in other words, the abutting portion 54 and the overlapping portion 55 in FIG.
  • the step portion is configured to be rounded.
  • the number of the spacers 51, 52, 53 illustrated in each drawing in the one intermediate holder 41 and the end holder 46 is four, but the present invention is not limited to this. If the clamping force can be maintained and the surface pressure distribution due to the clamping force on the wide surface 12 is appropriate from the viewpoint of preventing deterioration of battery characteristics, the spacers 51, 52, 53 provided on one intermediate holder 41 and end holder 46 are provided. The number of may be other than four. If the surface pressure distribution due to the binding force on the wide surface 12 is appropriate from the viewpoint of preventing deterioration of battery characteristics, the contact area per spacer 51, 52, 53, You may set suitably the space
  • the present invention is not limited to the above-described embodiment, and a plurality of flat batteries having a pair of wide surfaces opposed to the battery container surface in the thickness direction of the battery container and the width of adjacent flat batteries are widened.
  • the surfaces are laminated facing each other, and a holding member that holds a plurality of flat batteries in a state where a predetermined compressive force is applied, and an exterior insulating film that covers the outer periphery of the battery container except for a part of the wide surface,
  • the holding member is provided between the wide surfaces facing each other in adjacent flat batteries, and has a spacer that contacts the non-protected portion that is not covered with the exterior insulating film in the wide surface at the contact portion. It includes an assembled battery having various features.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
PCT/JP2014/052194 2013-03-14 2014-01-31 組電池 WO2014141765A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-052127 2013-03-14
JP2013052127A JP6031388B2 (ja) 2013-03-14 2013-03-14 組電池

Publications (1)

Publication Number Publication Date
WO2014141765A1 true WO2014141765A1 (ja) 2014-09-18

Family

ID=51536441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/052194 WO2014141765A1 (ja) 2013-03-14 2014-01-31 組電池

Country Status (2)

Country Link
JP (1) JP6031388B2 (ko)
WO (1) WO2014141765A1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019111910A1 (ja) 2017-12-06 2019-06-13 旭化成株式会社 車載リチウムイオンバッテリー用部材
DE102023201708A1 (de) 2023-02-24 2024-08-29 Volkswagen Aktiengesellschaft Verfahren zur Montage eines Batteriesystems eines Kraftfahrzeugs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6637951B2 (ja) * 2017-12-12 2020-01-29 本田技研工業株式会社 車両用バッテリユニット

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008016259A (ja) * 2006-07-04 2008-01-24 Toyota Motor Corp 蓄電モジュールの製造装置および蓄電モジュールの製造方法
JP2008103207A (ja) * 2006-10-19 2008-05-01 Panasonic Ev Energy Co Ltd 温度検知デバイス付きヒータ、及びヒータ付き電池構造体
JP2010092610A (ja) * 2008-10-03 2010-04-22 Toyota Motor Corp 組電池構造体、車両、電池搭載機器及び組電池構造体の製造方法
JP2010153141A (ja) * 2008-12-24 2010-07-08 Sanyo Electric Co Ltd 車両用の電源装置
JP2014010983A (ja) * 2012-06-28 2014-01-20 Sanyo Electric Co Ltd 電源装置及びこの電源装置を備える車両並びに蓄電装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5142605B2 (ja) * 2007-06-28 2013-02-13 三洋電機株式会社 車両用の電源装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008016259A (ja) * 2006-07-04 2008-01-24 Toyota Motor Corp 蓄電モジュールの製造装置および蓄電モジュールの製造方法
JP2008103207A (ja) * 2006-10-19 2008-05-01 Panasonic Ev Energy Co Ltd 温度検知デバイス付きヒータ、及びヒータ付き電池構造体
JP2010092610A (ja) * 2008-10-03 2010-04-22 Toyota Motor Corp 組電池構造体、車両、電池搭載機器及び組電池構造体の製造方法
JP2010153141A (ja) * 2008-12-24 2010-07-08 Sanyo Electric Co Ltd 車両用の電源装置
JP2014010983A (ja) * 2012-06-28 2014-01-20 Sanyo Electric Co Ltd 電源装置及びこの電源装置を備える車両並びに蓄電装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019111910A1 (ja) 2017-12-06 2019-06-13 旭化成株式会社 車載リチウムイオンバッテリー用部材
US11539095B2 (en) 2017-12-06 2022-12-27 Asahi Kasei Kabushiki Kaisha In-vehicle lithium ion battery member
DE102023201708A1 (de) 2023-02-24 2024-08-29 Volkswagen Aktiengesellschaft Verfahren zur Montage eines Batteriesystems eines Kraftfahrzeugs

Also Published As

Publication number Publication date
JP6031388B2 (ja) 2016-11-24
JP2014179228A (ja) 2014-09-25

Similar Documents

Publication Publication Date Title
US11239525B2 (en) Battery pack
EP3151307B1 (en) Battery module and battery pack comprising same
US9741974B2 (en) Battery cell having round corner
EP1744383B1 (en) Electrical device with film covering and frame member
EP2846377B1 (en) Battery assembly having single electrode terminal joint part
JP6245142B2 (ja) 二次電池の製造方法および二次電池
JP2008108457A (ja) 組電池およびその製造方法
US11251493B2 (en) Battery pack
EP3890085A1 (en) Battery cell assembly, battery module and battery pack
US9318733B2 (en) Electrode assembly of stair-like structure
EP3800686B1 (en) Secondary battery and battery module
US20170033339A1 (en) Electricity storage system
EP2416399A1 (en) Secondary battery and battery system
WO2013124889A1 (ja) 蓄電装置
US20130115494A1 (en) Rechargeable battery
KR20150000090A (ko) 가압 브라켓을 포함하는 전지모듈
JP2008235149A (ja) 組電池用スペーサ部材及び組電池
US20120052349A1 (en) Rechargeable battery
JP6031388B2 (ja) 組電池
JP5585482B2 (ja) 蓄電装置
EP2424008B1 (en) Rechargeable battery
WO2012131760A1 (ja) 蓄電装置および蓄電装置の製造方法
WO2016098893A1 (ja) 蓄電モジュールの製造方法、及び蓄電モジュール
JP7107150B2 (ja) 蓄電装置
WO2023133748A1 (zh) 电池模块、电池、用电设备、制备电池的方法和设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14763668

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14763668

Country of ref document: EP

Kind code of ref document: A1