WO2019004296A1 - 電池モジュールおよび電池モジュールの製造方法 - Google Patents
電池モジュールおよび電池モジュールの製造方法 Download PDFInfo
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- WO2019004296A1 WO2019004296A1 PCT/JP2018/024411 JP2018024411W WO2019004296A1 WO 2019004296 A1 WO2019004296 A1 WO 2019004296A1 JP 2018024411 W JP2018024411 W JP 2018024411W WO 2019004296 A1 WO2019004296 A1 WO 2019004296A1
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- WIPO (PCT)
- Prior art keywords
- voltage monitoring
- battery module
- bus bar
- monitoring line
- battery
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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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
- H01M50/50—Current conducting connections for cells or batteries
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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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
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery module and a method of manufacturing the battery module.
- Priority is claimed on Japanese Patent Application No. 2017-124903, filed Jun. 27, 2017, the content of which is incorporated herein by reference.
- the storage battery unit has been installed inside a general house to store electric energy generated by a solar cell panel or the like so that it can be used at night.
- the storage battery unit includes a housing and a plurality of battery modules stacked and accommodated in the housing.
- the battery module includes a housing, a plurality of power storage units accommodated therein, a bus bar welded to the electrode tabs of the power storage unit, and a voltage monitoring line connected to the bus bar and a measurement unit for measuring the voltage of the power storage unit And.
- the bus bar and the voltage monitoring line are screwed to the housing at a terminal portion of the voltage monitoring line (see, for example, Patent Document 1).
- the bus bar may be disconnected when vibration is applied.
- the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a battery module in which disconnection of a bus bar is prevented even when vibration is applied.
- a housing a plurality of battery units stacked and accommodated in the housing, a plurality of bus bars welded respectively to electrode tabs of the plurality of battery units, and voltages of the plurality of battery units And a plurality of voltage monitoring lines respectively connected to the plurality of bus bars, each bus bar being held by the housing in the vicinity of the electrode tab, and the plurality of bus bars and the plurality of bus bars.
- a battery module in which at least one set of voltage monitoring lines is connected without being fixed to the housing at a terminal portion of the voltage monitoring line.
- the plurality of bus bars and the plurality of voltage monitoring lines are connected to [1] independently by at least one connecting means selected from the group consisting of rivets, solder, welding, screws and caulking. Battery module described.
- each bus bar is a method for manufacturing a battery module held in the housing in the vicinity of the electrode tab. Method of manufacturing a battery module including connecting at least one set of the plurality of bus bars and the plurality of voltage monitoring lines at the terminal portion of the voltage monitoring line without fixing to the casing .
- FIG. 1A It is a front view which shows schematic structure of 1st Embodiment of the battery module of this invention. It is a figure which shows schematic structure of 1st Embodiment of the battery module of this invention, and is an enlarged view of area
- FIG. 1A is a front view showing a schematic configuration of a battery module of the present embodiment.
- FIG. 1B is a diagram showing a schematic configuration of the first embodiment of the battery module of the present invention, and is an enlarged view of a region ⁇ in FIG. 1A, and a cross-sectional view along the depth direction of FIG.
- the battery module 10 according to the present embodiment includes a housing 20, a plurality of battery units 30 stacked and accommodated in the housing 20, a bus bar 40 welded to the electrode tabs 31 of the battery unit 30, a bus bar 40, and And a voltage monitoring line 50 connected to a measurement unit (not shown) for measuring the voltage of the battery unit 30.
- the bus bar 40 is held by the casing 20 in the vicinity of the electrode tab 31 of the battery unit 30 on the front surface 10a side of the battery module 10 (end surface perpendicular to the longitudinal direction of the battery module 10) as shown in FIG. 1B. . That is, the bus bar 40 is held by the housing 20 by being inserted into the insertion portion (gap) of the bus bar formed in the housing 20.
- the electrode tab 31 of the battery unit 30 and the bus bar 40 are connected by being welded at the welding portion 60.
- the bus bar 40 and the voltage monitoring line 50 are connected at the terminal portion 51 of the voltage monitoring line 50 without being fixed to the housing 20. More specifically, as shown in FIG. 1B, the bus bar 40 and the voltage monitoring line 50 are connected at the terminal portion 51 by a rivet 70 as a connection means. Further, the rivet 70 is accommodated in a recess 21 formed in the housing 20 so as to be recessed in the depth direction of the battery module 10 on the front surface 10 a side of the battery module 10. In this case, it is preferable that a gap be present between the rivet 70 and the recess 21.
- a plurality of sets of bus bars 40 and voltage monitoring lines 50 are provided corresponding to a plurality of battery units 30, but at least one set of the plurality of sets with respect to housing 20. It may be connected without being fixed. Not only from the viewpoint of more reliably preventing disconnection of the bus bar due to vibration or the like, but also from the viewpoint of facilitating the manufacture of the battery module 10, preferably 1/3 or more of the plurality of pairs is more preferably 1 / more. Two or more, more preferably 2/3 or more, and most preferably all are connected without being fixed to the housing 20. In particular, when the battery units 30 are connected in series, it is preferable that the plurality of sets be connected without being fixed to the housing 20.
- fixed herein refers to a state of being joined to the housing 20 so as not to be detached from the housing 20 even if a certain or more force is applied by mechanical bonding, welding, adhesion or the like.
- the state in which the bus bar 40 and the voltage monitoring line 50 are simply in contact with the housing 20 in a movable state is not included in "fixed”.
- the configuration of the battery unit 30 is not particularly limited.
- the battery unit 30 is formed in a sheet shape (plate shape).
- Battery unit 30 includes power storage body 32, exterior body 33 accommodating power storage body 32, and electrolyte 34 filled in exterior body 33.
- positive electrode portions 35 and negative electrode portions 36 are alternately stacked in the thickness direction of the battery unit 30.
- the positive electrode portion 35 includes a positive electrode sheet (not shown) and a positive electrode active material layer (not shown) provided on the main surface thereof.
- the negative electrode portion 36 includes a negative electrode sheet (not shown) and a negative electrode active material layer (not shown) provided on the main surface thereof.
- a separator 37 is disposed between the positive electrode portion 35 and the negative electrode portion 36. That is, the power storage body 32 is configured by stacking the positive electrode portion 35, the separator 37, the negative electrode portion 36, the separator 37, the positive electrode portion 35,... In this order.
- An aluminum foil etc. can be used as a positive electrode sheet.
- a metal oxide lithium compound represented by the general formula “LiM x O y (wherein, M is a metal; x and y are composition ratios of metal M and oxygen O)” Etc. are used.
- metal oxide compounds include lithium cobaltate (LiCoO 2 ) and lithium nickelate (LiNiO 2 ).
- Copper foil etc. can be used as a negative electrode sheet.
- Graphite (graphite), silicon oxide or the like is used for the negative electrode active material layer.
- the material of the separator 37 is not particularly limited, and examples thereof include a microporous polymer film, a non-woven fabric, a glass fiber and the like.
- the configuration of the exterior body 33 is not particularly limited.
- the exterior body 33 has, for example, a first laminated film 38 and a second laminated film 39 in which a modified PP (polypropylene) layer, an aluminum layer, a nylon layer, and a PET (polyethylene terephthalate) layer are laminated from the inner layer side. .
- a modified PP polypropylene
- an aluminum layer aluminum layer
- a nylon layer polyethylene terephthalate
- PET polyethylene terephthalate
- the electrolyte 34 is not particularly limited, and, for example, an electrolyte, an electrolytic solution and the like used in a known lithium ion secondary battery can be applied.
- an electrolyte solution the mixed solution which melt
- the battery unit 30 includes a pair of tabs (terminals) (not shown).
- the battery unit 30 can be charged and discharged through a pair of tabs.
- the mass of one or more sheets is relatively heavy, for example, several tens kg or 100 kg.
- the bus bar 40 and the voltage monitoring line 50 are connected to the housing 20 at the terminal portion 51 of the voltage monitoring line 50 without being fixed. Therefore, even if vibration is applied to the terminal portion 51 of the voltage monitoring line 50, disconnection of the bus bar 40 can be prevented.
- FIG. 3 is a plan view showing an outline of a connection structure of a bus bar and a voltage monitoring line in a battery module of the present embodiment.
- the same components as those shown in FIG. 1 are denoted by the same reference numerals and the description thereof will be omitted.
- the bus bar 40 and the voltage monitoring line 50 are connected without being fixed to the housing 20 at the terminal portion 51 of the voltage monitoring line 50. More specifically, as shown in FIG. 3, the bus bar 40 and the voltage monitoring line 50 are connected at the terminal portion 51 by the solder 80 as a connection means. Furthermore, the connection portion including the solder 80 is not fixed to the housing 20 on the front surface 10 a side of the battery module 10.
- the same effects as those of the battery module 10 of the first embodiment can be obtained.
- FIG. 4 is a plan view showing an outline of a connection structure of a bus bar and a voltage monitoring line in a battery module of the present embodiment.
- the same components as those shown in FIG. 1 are denoted by the same reference numerals and the description thereof will be omitted.
- the bus bar 40 and the voltage monitoring line 50 are connected without being fixed to the housing 20 at the terminal portion 51 of the voltage monitoring line 50. More specifically, as shown in FIG. 4, the bus bar 40 and the voltage monitoring line 50 are connected at the terminal portion 51 by a welding portion 90 as a connection means. Furthermore, the connection portion including the welding portion 90 is not fixed to the housing 20 on the front surface 10 a side of the battery module 10.
- the same effects as those of the battery module 10 of the first embodiment can be obtained.
- FIG. 5 is a plan view showing an outline of a connection structure of a bus bar and a voltage monitoring line in a battery module of the present embodiment.
- the same components as those shown in FIG. 1 are denoted by the same reference numerals and the description thereof will be omitted.
- the bus bar 40 and the voltage monitoring line 50 are connected without being fixed to the housing 20 at the terminal portion 51 of the voltage monitoring line 50. More specifically, as shown in FIG. 5, the bus bar 40 and the voltage monitoring line 50 are connected at the terminal portion 51 by a screw 100 as a connection means.
- the screw 100 is accommodated in a recess formed in the housing 20 so as to be recessed in the depth direction of the battery module 10 on the front surface 10 a side of the battery module 10. In this case, it is preferable that a gap be present between the screw 100 and the recess.
- the same effects as those of the battery module 10 of the first embodiment can be obtained.
- FIG. 6 is a plan view showing an outline of a connection structure of a bus bar and a voltage monitoring line in a battery module of the present embodiment. 6, the same components as those shown in FIG. 1 are denoted by the same reference numerals and the description thereof will be omitted.
- the bus bar 40 and the voltage monitoring line 50 are connected without being fixed to the housing 20 at the terminal portion 51 of the voltage monitoring line 50. More specifically, as shown in FIG. 6, the bus bar 40 and the voltage monitoring line 50 are connected at the terminal portion 51 by a caulking portion 110 as a connection means.
- the caulking portion 110 is provided at an end of the bus bar 40 opposite to the portion held by the housing 20.
- connection portion including the caulking portion 110 is not fixed to the housing 20 on the front surface 10 a side of the battery module 10.
- the same effects as those of the battery module 10 of the first embodiment can be obtained.
- FIG. 7 is a plan view showing an outline of a connection structure of a bus bar and a voltage monitoring line in a battery module of the present embodiment.
- the same components as those shown in FIG. 1 are denoted by the same reference numerals and the description thereof will be omitted.
- the bus bar 40 and the voltage monitoring line 50 are connected without being fixed to the housing 20 at the terminal portion 51 of the voltage monitoring line 50. More specifically, as shown in FIG. 7, the bus bar 40 and the voltage monitoring line 50 are connected by being integrated.
- the bus bar 40 and the voltage monitoring line 50 are integrally molded by punching a metal plate or the like. Furthermore, the boundary 45 between the bus bar 40 and the voltage monitoring line 50 is not fixed to the housing 20 on the front surface 10 a side of the battery module 10.
- the same effects as those of the battery module 10 of the first embodiment can be obtained.
- the above battery module is known except for connecting at least one set of the plurality of bus bars and the plurality of voltage monitoring lines at the terminal portion of the voltage monitoring line without fixing the housing to the casing. It can be manufactured using the method of According to this method, since it is not necessary to fix the bus bar and the voltage monitoring line to the housing, it is possible not only to manufacture the battery module more simply than the conventional method, but also to vibrate as described above. Even if is added, the battery module which prevented that the bus-bar was disconnected can be manufactured.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
本願は、2017年6月27日に、日本に出願された特願2017-124903号に基づき優先権を主張し、その内容をここに援用する。
[4]筐体と、該筐体内に積層されて収容される複数の電池ユニットと、前記複数の電池ユニットの電極タブにそれぞれ溶接される複数のバスバーと、前記複数の電池ユニットのそれぞれの電圧を測定する測定部および前記複数のバスバーにそれぞれ接続される複数の電圧監視線と、を備え、各バスバーは、前記電極タブ近傍にて前記筐体に保持されている電池モジュールの製造方法であって、前記複数のバスバーと前記複数の電圧監視線の少なくとも1組を、前記電圧監視線の端子部にて、前記筐体に対して固定することなく、接続することを含む電池モジュールの製造方法。
なお、本実施の形態は、発明の趣旨をより良く理解させるために具体的に説明するものであり、特に指定のない限り、本発明を限定するものではない。
(1)第1の実施形態
図1Aは、本実施形態の電池モジュールの概略構成を示す正面図である。図1Bは、本発明の電池モジュールの第1の実施形態の概略構成を示す図であり、図1Aにおける領域αの拡大図であり、図1Aの奥行き方向に沿う断面図である。
本実施形態の電池モジュール10は、筐体20と、筐体20内に積層されて収容される複数の電池ユニット30と、電池ユニット30の電極タブ31に溶接されるバスバー40と、バスバー40および電池ユニット30の電圧を測定する測定部(図示略)に接続される電圧監視線50と、を備える。
尚、本実施形態においては、複数の電池ユニット30に対応して、複数組のバスバー40および電圧監視線50が設けられているが、この複数組のうち少なくとも1組が筐体20に対して固定されることなく、接続されていればよい。振動などによりバスバーが断線することをより確実に防止する観点のみならず、電池モジュール10の製造を容易にする観点からは、好ましくは前記複数組のうち1/3以上が、より好ましくは1/2以上が、さらに好ましくは2/3以上が、最も好ましくは全てが筐体20に対して固定されることなく、接続されている。特に、電池ユニット30が直列に接続されている場合には、前記複数組の全てが筐体20に対して固定されることなく、接続されていることが好ましい。
また、ここで「固定」とは、機械的接合、溶着、接着等により一定以上の力を加えても筐体20から脱離しないように筐体20に接合された状態を指す。バスバー40および電圧監視線50が、筐体20に対して移動可能な状態で単に接しているような状態は「固定」には含まれない。
正極部35と負極部36との間には、セパレータ37が配置されている。すなわち、正極部35、セパレータ37、負極部36、セパレータ37、正極部35、・・・、の順に積層することで、蓄電体32が構成されている。
負極シートとしては、銅箔等を用いることができる。負極活物質層には、黒鉛(グラファイト)や酸化ケイ素等が用いられる。
セパレータ37の材質は、特に限定されないが、微多孔性の高分子膜、不織布、ガラスファイバー等が挙げられる。
第1積層フィルム38の変性PP層の縁部と第2積層フィルム39の変性PP層の縁部とが溶着することで、外装体33が袋状に構成される。
電池ユニット30は、1枚または複数枚の質量が、例えば、数10kgや100kg等と、比較的重い。
図3は、本実施形態の電池モジュールにおける、バスバーと電圧監視線の接続構造の概略を示す平面図である。図3において、図1に示す構成と同一の構成については同一の符号を付して説明を省略する。
本実施形態では、バスバー40と電圧監視線50が、電圧監視線50の端子部51にて、筐体20に対して固定されることなく、接続されている。より詳細には、図3に示すように、バスバー40と電圧監視線50は、端子部51にて、接続手段としてのはんだ80によって接続されている。さらに、そのはんだ80を含む接続部が、電池モジュール10の正面10a側において、筐体20に固定されない。
図4は、本実施形態の電池モジュールにおける、バスバーと電圧監視線の接続構造の概略を示す平面図である。図4において、図1に示す構成と同一の構成については同一の符号を付して説明を省略する。
本実施形態では、バスバー40と電圧監視線50は、電圧監視線50の端子部51にて、筐体20に対して固定されることなく、接続されている。より詳細には、図4に示すように、バスバー40と電圧監視線50は、端子部51にて、接続手段としての溶接部90によって接続されている。さらに、その溶接部90を含む接続部が、電池モジュール10の正面10a側において、筐体20に固定されない。
図5は、本実施形態の電池モジュールにおける、バスバーと電圧監視線の接続構造の概略を示す平面図である。図5において、図1に示す構成と同一の構成については同一の符号を付して説明を省略する。
本実施形態では、バスバー40と電圧監視線50は、電圧監視線50の端子部51にて、筐体20に対して固定されることなく、接続されている。より詳細には、図5に示すように、バスバー40と電圧監視線50は、端子部51にて、接続手段としてのネジ100によって接続されている。さらに、そのネジ100が、電池モジュール10の正面10a側において、筐体20に電池モジュール10の奥行き方向に凹むように形成された凹部内に収容されている。この場合、ネジ100と凹部の間には、隙間があることが好ましい。
図6は、本実施形態の電池モジュールにおける、バスバーと電圧監視線の接続構造の概略を示す平面図である。図6において、図1に示す構成と同一の構成については同一の符号を付して説明を省略する。
本実施形態では、バスバー40と電圧監視線50は、電圧監視線50の端子部51にて、筐体20に対して固定されることなく、接続されている。より詳細には、図6に示すように、バスバー40と電圧監視線50は、端子部51にて、接続手段としてのかしめ部110によって接続されている。かしめ部110は、バスバー40における筐体20に保持されている部分とは反対側の端部に設けられている。かしめ部110に電圧監視線50の端子部51を挿入して、かしめ部110をかしめることにより、バスバー40と電圧監視線50が接続されている。さらに、そのかしめ部110を含む接続部が、電池モジュール10の正面10a側において、筐体20に固定されない。
図7は、本実施形態の電池モジュールにおける、バスバーと電圧監視線の接続構造の概略を示す平面図である。図7において、図1に示す構成と同一の構成については同一の符号を付して説明を省略する。
本実施形態では、バスバー40と電圧監視線50は、電圧監視線50の端子部51にて、筐体20に対して固定されることなく、接続されている。より詳細には、図7に示すように、バスバー40と電圧監視線50は、一体化されることにより接続されている。バスバー40と電圧監視線50は、金属板の打ち抜き加工等により、一体に成型されている。さらに、バスバー40と電圧監視線50の境界部45が、電池モジュール10の正面10a側において、筐体20に固定されない。
上記の電池モジュールは、前記複数のバスバーと前記複数の電圧監視線の少なくとも1組を、前記電圧監視線の端子部にて、前記筐体に対して固定することなく、接続すること以外は公知の方法を用いて製造することができる。
この方法によれば、バスバーと電圧監視線を筐体に固定する必要が無いため、従来の方法と比較して簡便に電池モジュールを製造することが可能になるのみならず、上記した通り、振動が加えられても、バスバーが断線することを防止した電池モジュールを製造することができる。
20 筐体
21 凹部
30 電池ユニット
31 電極タブ
32 蓄電体
33 外装体
34 電解質
35 正極部
36 負極部
37 セパレータ
38 第1積層フィルム
39 第2積層フィルム
40 バスバー
50 電圧監視線
51 端子部
60 溶接部
70 リベット
80 はんだ
90 溶接部
100 ネジ
110 かしめ部
Claims (4)
- 筐体と、該筐体内に積層されて収容される複数の電池ユニットと、前記複数の電池ユニットの電極タブにそれぞれ溶接される複数のバスバーと、前記複数の電池ユニットのそれぞれの電圧を測定する測定部および前記複数のバスバーにそれぞれ接続される複数の電圧監視線と、を備え、
各バスバーは、前記電極タブ近傍にて前記筐体に保持され、
前記複数のバスバーと前記複数の電圧監視線の少なくとも1組は、前記電圧監視線の端子部にて、前記筐体に対して固定されることなく、接続されていることを特徴とする電池モジュール。 - 前記複数のバスバーと前記複数の電圧監視線は、それぞれ独立してリベット、はんだ、溶接、ネジおよびかしめからなる群から選択される少なくとも1つの接続手段によって接続されていることを特徴とする請求項1に記載の電池モジュール。
- 前記複数のバスバーと前記複数の電圧監視線は、それぞれ一体的に形成されていることを特徴とする請求項1に記載の電池モジュール。
- 筐体と、該筐体内に積層されて収容される複数の電池ユニットと、前記複数の電池ユニットの電極タブにそれぞれ溶接される複数のバスバーと、前記複数の電池ユニットのそれぞれの電圧を測定する測定部および前記複数のバスバーにそれぞれ接続される複数の電圧監視線と、を備え、
各バスバーは、前記電極タブ近傍にて前記筐体に保持されている電池モジュールの製造方法であって、
前記複数のバスバーと前記複数の電圧監視線の少なくとも1組を、前記電圧監視線の端子部にて、前記筐体に対して固定することなく、接続することを含む電池モジュールの製造方法。
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KR1020197033010A KR20200021450A (ko) | 2017-06-27 | 2018-06-27 | 전지 모듈 및 전지 모듈의 제조 방법 |
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JP2023500529A (ja) * | 2020-01-23 | 2023-01-06 | エルジー エナジー ソリューション リミテッド | 方向に関係なく結合されるリングターミナルを含む電池パック |
EP4258457A4 (en) * | 2021-10-29 | 2024-03-20 | Contemporary Amperex Technology Co Ltd | BATTERY, ELECTRICAL DEVICE AND METHOD AND DEVICE FOR PRODUCING THE BATTERY |
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