WO2014109041A1 - Module de batterie, et système de batterie mettant en œuvre celui-ci - Google Patents

Module de batterie, et système de batterie mettant en œuvre celui-ci Download PDF

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Publication number
WO2014109041A1
WO2014109041A1 PCT/JP2013/050351 JP2013050351W WO2014109041A1 WO 2014109041 A1 WO2014109041 A1 WO 2014109041A1 JP 2013050351 W JP2013050351 W JP 2013050351W WO 2014109041 A1 WO2014109041 A1 WO 2014109041A1
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WO
WIPO (PCT)
Prior art keywords
cell
cell group
battery module
battery
cells
Prior art date
Application number
PCT/JP2013/050351
Other languages
English (en)
Japanese (ja)
Inventor
本田　光利
晋 山内
賢治 武田
田中　融
Original Assignee
株式会社 日立製作所
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 株式会社 日立製作所 filed Critical 株式会社 日立製作所
Priority to PCT/JP2013/050351 priority Critical patent/WO2014109041A1/fr
Publication of WO2014109041A1 publication Critical patent/WO2014109041A1/fr

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Classifications

    • 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
    • H01M50/293—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 the material
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/103—Fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/278—Organic material
    • 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 a battery module and a battery system using the same.
  • Battery systems are used to store electricity generated using natural energy, as well as for facility backup power. Conventionally, such a large battery system has been constructed with a lead-acid battery. However, due to recent demands for space saving and lead-free, a large battery system using a lithium ion secondary battery for the battery system. Development is progressing.
  • lithium ion secondary batteries such as a wound type and a laminated type.
  • a laminate-type lithium ion secondary battery is composed of a laminate in which positive and negative electrode plates are alternately laminated, a cell film that accommodates the laminate, an electrolyte filled in the cell film, and the like. Yes.
  • a plurality of such secondary batteries are generally combined and housed in a module case and used as a battery module.
  • an internal short-circuit detection plate is provided between cells, and when the internal short-circuit detection plates are short-circuited, the conductivity detection unit detects a short-circuit current, and is provided between cells by a signal from the conductivity detection unit.
  • a battery module is disclosed in which a bypass circuit is provided by turning on the relay to prevent abnormal heat generation of the cell.
  • Patent Document 1 if a short circuit does not occur up to the internal short circuit detection plate, there is a possibility that thermal runaway cannot be suppressed.
  • an object of the present invention is to provide a battery module that can reliably cut off the current flowing in the battery module no matter what the short circuit occurs.
  • the battery module according to the present invention includes a first cell group in which at least two or more cells are arranged in a row on a plane and electrically connected in series, and at least two or more cells in a row on a plane.
  • a first cell group and a second cell group electrically connected in series, and the first cell group and the second cell group are electrically connected in series via a current blocking mechanism.
  • each of the cells constituting the first cell group is arranged opposite to at least one of the cells constituting the second cell group.
  • the battery module 200a schematic diagram.
  • the cross-sectional schematic diagram of the battery module 220 which concerns on 3rd embodiment. Schematic which concerns on 4th embodiment.
  • Schematic of the battery module 200b. 1 is a schematic diagram of a battery system 300.
  • FIG. 1 is a schematic view of a battery module.
  • the battery module 200a includes a cell 101, a fuse 102, a partition plate 103, a bus bar 104, a positive terminal 105a, a negative terminal 105b, a module case 106, and output terminals 107 and 108.
  • the bus bar 104 that electrically connects the cells is fixed by an electrode fixture (not shown).
  • the cell 101 is composed of a laminated lithium ion battery cell.
  • the cell 101 is divided into a plurality of cells 101a arranged in one plane and a cell 101b arranged in a plane different from the plane in which the cells 101a are arranged.
  • the first cell group 201a includes a plurality of cells 101a arranged in one plane
  • the second cell group includes a plurality of cells 101b arranged in a plane different from the plane in which the cells 101a are arranged.
  • Called 201b The first cell group 201a and the second cell group 201b are arranged via a partition plate 103 made of metal.
  • at least one cell 101 (b) constituting the second cell group 201b is arranged at a position facing each cell 101 (a) constituting the first cell group 201a. It has become.
  • the first cell group 201a and the second cell group 201b are electrically connected via the fuse 102, so that a fuse can be reliably connected regardless of which cell is short-circuited.
  • a current loop through 102 is formed, and the fuse 102 can be reliably broken.
  • FIG. 2A shows a cross-sectional view of the battery module 200a.
  • the cells having the bus bar 104201 positive electrode terminal 105a and the negative electrode terminal 105b are arranged in a line on one plane to constitute the cell group 201.
  • the positive electrode terminal 105 a and the adjacent negative electrode terminal 105 b of each cell are connected in series via the bus bar 104.
  • any of a method using a crimping fitting, a welding method, and screwing may be employed.
  • the cells 101a and 101b are arranged so that the main surfaces of the cells constituting each cell group 105 face each other.
  • each cell 101a constituting the first battery cell group 201a is configured such that the cell 101b constituting the second cell group 201b is always arranged at an opposing position.
  • the fuse 102 can be surely broken and the short-circuit current can be interrupted.
  • the short circuit current can follow the current path 202 through the fuse 102, and the fuse 102 can be reliably connected. Can be broken.
  • FIG. 3A shows an overall perspective view of the battery module 200a
  • FIG. 3B is a diagram with the module cover of the battery module 200a shown in FIG. 3A removed.
  • the module cover is composed of two types, 110 and 111.
  • the cover 110 corresponds to the outer frame of the module and is made of resin.
  • the heat sink 111 covers the main surface of the cell. It is provided.
  • the heat radiating plate 111 is formed of a member having good heat dissipation.
  • it may be made of a metal such as copper or aluminum, or a resin material having better heat dissipation than the resin constituting the cover 110.
  • a heat sink 111 is also provided on the main surface of the cell 101b constituting the second cell group 201b.
  • the partition plate 103 may be made of either metal or resin, the metal is more likely to release heat generated from the inside of the battery module 200a during charging and discharging. With such a configuration, even if a short circuit occurs and a large amount of heat is generated instantaneously, it is possible to sufficiently dissipate heat and prevent secondary abnormalities due to temperature rise. .
  • the material of the bus bar 104 may be another metal plate such as aluminum or a copper plate plated.
  • the material of the module case 106 may be resin or metal, but the metal is more likely to release heat generated from the inside of the module during charging and discharging. Therefore, with this configuration, the thermal conductivity is improved not only in the main surface direction of the cell 101 but also in the inter-cell direction to which the bus bar 104 is connected. Therefore, a short circuit occurs temporarily, and a large amount of heat is instantaneously generated. Even if it occurs, it is possible to sufficiently dissipate heat, and it is possible to prevent the occurrence of secondary abnormality due to temperature rise.
  • the cell 101 is a laminated lithium ion battery cell.
  • the cell 101 has a rectangular shape.
  • a type cell may be used.
  • FIG. 4 shows a configuration using a square cell 115.
  • the heat dissipation is reduced as compared with the structure of the laminated lithium ion battery cell. Since the battery capacity increases, the battery module can be applied to a larger system.
  • the battery is not limited to the lithium ion secondary battery, and may be a nickel hydride battery or a lead storage battery.
  • the second embodiment will be described.
  • the number similar to the drawing number used in 1st embodiment is used.
  • the difference from the first embodiment is that the fuse 102 is used as the current interruption mechanism in the first embodiment, but in this embodiment, the combination of the current sensor 112, the switch 114, and the control circuit 113 is used. Is.
  • FIG. 5 shows a cross-sectional view of the battery module 210 of the second embodiment.
  • a current sensor 112 and a switch 114 are provided between the first cell group 101a and the second cell group 101b.
  • the current information acquired by the current sensor 112 is output to the control circuit 113.
  • the control circuit 113 converts the current sensor 110 into a current value and outputs a signal for turning off the switch 114 when a current of a certain level or more flows.
  • the current sensor 112 may be a shunt resistor or a Hall sensor.
  • the switch 114 may be a semiconductor switch or a mechanical switch.
  • the connection between the first cell group 101a and the second cell group 101b with a current value input in advance to the control circuit. Can be cut off. Therefore, by configuring the circuit to turn off the switch 113 when a minute current at the initial stage of a short circuit is detected, the short circuit current can be eliminated before a complete short circuit occurs, thereby preventing a dangerous phenomenon such as ignition. The safety of the battery module 210 is improved.
  • FIG. 6 shows the structure of the battery module 220 when three layers are stacked. In this embodiment, it has the 1st cell group 221a comprised from the cell 101a, the 2nd cell group 221b comprised from the cell 101b, and the 3rd cell group 221c comprised from the cell 101c.
  • the fourth embodiment will be described.
  • the number similar to the drawing number used in 1st embodiment is used.
  • This embodiment is different from the first embodiment in that the cells 101 are arranged in the depth direction.
  • FIG. 7 shows a configuration example of the battery module 230 when the cells 101 are also arranged in the depth direction.
  • a cell in which the positive electrode terminal 105a and the negative electrode terminal 105b are protruded from only one side of the cell 101 is used.
  • a laminated battery cell is used.
  • the bus bar 104 and the terminal 105 may be connected by any method of using a crimp fitting, a welding method, and screwing.
  • the cells 101 constituting the first cell group 231a are arranged to face at least one of the cells 101b constituting the second cell group 231b.
  • the fifth embodiment will be described.
  • the number similar to the drawing number used in 1st embodiment is used.
  • the battery system 300 is configured by assembling the battery module described in the first embodiment.
  • FIG. 8 shows a battery module 200b in which through holes 150 are provided at the four corners of the battery module 200a in order to improve assembly.
  • the battery system 300 shown in FIG. 9 is created by fixing and fixing the fixing rod 121 to the through hole 150.
  • a gap 122 having a predetermined interval is provided between the battery modules 200b.
  • this interval is preferably 1 mm or more from the viewpoint of generating ascending air current, and preferably 5 cm or less from the viewpoint of miniaturization. More preferably, it is 6 mm or more and 10 mm or less.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

Afin de prévenir un courant de court-circuit dû à l'insertion de clous, il est nécessaire d'agencer un fusible entre chaque cellule. Pour cela un nombre de fusibles équivalent à celui des cellules est nécessaire. Le module de batterie de l'invention possède : un premier groupe de cellules dans lequel au moins deux cellules sont rangées en une ligne sur un plan, et sont chacune connectées électriquement en série ; et un second groupe de cellules dans lequel au moins deux cellules sont rangées en une ligne sur un plan, et sont chacune connectées électriquement en série. Lesdits premier et second groupes de cellules sont caractéristiques en ce qu'ils sont connectés électriquement en série l'un à l'autre par l'intermédiaire d'un mécanisme de coupure de courant, et sont disposés en opposition l'un par rapport à l'autre, en outre, chaque cellule configurant ledit premier groupe de cellules, est disposée en opposition à au moins une cellule de chacune des cellules configurant ledit second groupe de cellules.
PCT/JP2013/050351 2013-01-11 2013-01-11 Module de batterie, et système de batterie mettant en œuvre celui-ci WO2014109041A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2013/050351 WO2014109041A1 (fr) 2013-01-11 2013-01-11 Module de batterie, et système de batterie mettant en œuvre celui-ci

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Application Number Priority Date Filing Date Title
PCT/JP2013/050351 WO2014109041A1 (fr) 2013-01-11 2013-01-11 Module de batterie, et système de batterie mettant en œuvre celui-ci

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021123714A1 (fr) * 2019-12-19 2021-06-24 Dyson Technology Limited Bloc-batterie
WO2021123716A1 (fr) * 2019-12-19 2021-06-24 Dyson Technology Limited Bloc-batterie
WO2021123715A1 (fr) * 2019-12-19 2021-06-24 Dyson Technology Limited Bloc-batterie
WO2021123713A1 (fr) * 2019-12-19 2021-06-24 Dyson Technology Limited Bloc-batterie
CN113067068A (zh) * 2020-01-02 2021-07-02 大众汽车股份公司 车辆电池
JP2022537748A (ja) * 2019-07-10 2022-08-29 エルジー エナジー ソリューション リミテッド バッテリーモジュール、それを含むバッテリーラック及び電力貯蔵装置
WO2023207270A1 (fr) * 2022-04-29 2023-11-02 比亚迪股份有限公司 Module de batterie, procédé de protection contre la pénétration d'un clou pour un module de batterie, et véhicule

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02138858U (fr) * 1989-04-26 1990-11-20
JPH0620716A (ja) * 1992-06-30 1994-01-28 Yuasa Corp ニッケル亜鉛蓄電池
JPH06223815A (ja) * 1993-01-22 1994-08-12 Ngk Insulators Ltd 集合電池
JP2003346748A (ja) * 2002-05-29 2003-12-05 Fuji Heavy Ind Ltd 組電池ユニット
JP2007506242A (ja) * 2003-10-14 2007-03-15 エルジー・ケム・リミテッド カートリッジ型リチウムイオンポリマー電池パック
JP2007520180A (ja) * 2003-10-14 2007-07-19 ブラック　アンド　デッカー　インク 電池パックの障害状態からの保護を提供するべく適合された二次電池、電動工具、充電器、及び電池パック用の保護方法、保護回路、及び保護装置
JP2009252567A (ja) * 2008-04-08 2009-10-29 Nissei Kogyo Yugenkoshi 電池パック
JP2009289431A (ja) * 2008-05-27 2009-12-10 Keihin Corp 組電池の電源制御装置
WO2009153911A1 (fr) * 2008-06-20 2009-12-23 パナソニック株式会社 Bloc de batterie

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02138858U (fr) * 1989-04-26 1990-11-20
JPH0620716A (ja) * 1992-06-30 1994-01-28 Yuasa Corp ニッケル亜鉛蓄電池
JPH06223815A (ja) * 1993-01-22 1994-08-12 Ngk Insulators Ltd 集合電池
JP2003346748A (ja) * 2002-05-29 2003-12-05 Fuji Heavy Ind Ltd 組電池ユニット
JP2007506242A (ja) * 2003-10-14 2007-03-15 エルジー・ケム・リミテッド カートリッジ型リチウムイオンポリマー電池パック
JP2007520180A (ja) * 2003-10-14 2007-07-19 ブラック　アンド　デッカー　インク 電池パックの障害状態からの保護を提供するべく適合された二次電池、電動工具、充電器、及び電池パック用の保護方法、保護回路、及び保護装置
JP2009252567A (ja) * 2008-04-08 2009-10-29 Nissei Kogyo Yugenkoshi 電池パック
JP2009289431A (ja) * 2008-05-27 2009-12-10 Keihin Corp 組電池の電源制御装置
WO2009153911A1 (fr) * 2008-06-20 2009-12-23 パナソニック株式会社 Bloc de batterie

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022537748A (ja) * 2019-07-10 2022-08-29 エルジー エナジー ソリューション リミテッド バッテリーモジュール、それを含むバッテリーラック及び電力貯蔵装置
JP7321298B2 (ja) 2019-07-10 2023-08-04 エルジー エナジー ソリューション リミテッド バッテリーモジュール、それを含むバッテリーラック及び電力貯蔵装置
WO2021123714A1 (fr) * 2019-12-19 2021-06-24 Dyson Technology Limited Bloc-batterie
WO2021123716A1 (fr) * 2019-12-19 2021-06-24 Dyson Technology Limited Bloc-batterie
WO2021123715A1 (fr) * 2019-12-19 2021-06-24 Dyson Technology Limited Bloc-batterie
WO2021123713A1 (fr) * 2019-12-19 2021-06-24 Dyson Technology Limited Bloc-batterie
CN114830421A (zh) * 2019-12-19 2022-07-29 戴森技术有限公司 电池包
CN114846684A (zh) * 2019-12-19 2022-08-02 戴森技术有限公司 电池包
CN114846683A (zh) * 2019-12-19 2022-08-02 戴森技术有限公司 电池包
CN113067068A (zh) * 2020-01-02 2021-07-02 大众汽车股份公司 车辆电池
WO2023207270A1 (fr) * 2022-04-29 2023-11-02 比亚迪股份有限公司 Module de batterie, procédé de protection contre la pénétration d'un clou pour un module de batterie, et véhicule

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