WO2006067903A1 - Device case, battery cell and assembled battery - Google Patents

Device case, battery cell and assembled battery Download PDF

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Publication number
WO2006067903A1
WO2006067903A1 PCT/JP2005/017730 JP2005017730W WO2006067903A1 WO 2006067903 A1 WO2006067903 A1 WO 2006067903A1 JP 2005017730 W JP2005017730 W JP 2005017730W WO 2006067903 A1 WO2006067903 A1 WO 2006067903A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
battery
device case
side support
housing member
Prior art date
Application number
PCT/JP2005/017730
Other languages
French (fr)
Japanese (ja)
Inventor
Takeshi Kanai
Hisako Nakano
Original Assignee
Nec Corporation
Fuji Jukogyo Kabushiki Kaisha
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 Nec Corporation, Fuji Jukogyo Kabushiki Kaisha filed Critical Nec Corporation
Priority to JP2006548707A priority Critical patent/JP4944618B2/en
Publication of WO2006067903A1 publication Critical patent/WO2006067903A1/en

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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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • 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
    • H01M50/105—Pouches or flexible bags
    • 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
    • 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
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • 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

  • One aspect of the present invention relates to a device case that can accommodate a film-covered electrical device in which a chargeable / dischargeable electrical device element is covered with a film.
  • Another aspect of the present invention relates to a cased film-clad battery in which a film-clad battery is accommodated in the device case.
  • FIG. 7 shows the basic structure of a film-clad battery disclosed in Japanese Patent Application Laid-Open No. 2001-76691.
  • a positive electrode side active electrode, a negative electrode side active electrode, and a power generation element 101 that is an electrolytic solution are covered with a laminate film 102.
  • Laminate film 102 is a film in which a metal film such as aluminum and a heat-fusible resin film are laminated.
  • the four opposite sides of the two laminate films 102 covering the power generation element 101 are air-tightly welded.
  • the film-like positive electrode terminal 103 is drawn out from one short side portion 106a of the laminated film 102, and the film-like negative electrode terminal 104 is drawn out from the other short side portion 106b. Yes.
  • An assembled battery includes a number of battery cells in which a film-cased battery having the above structure is housed in a cell case.
  • the performance of the assembled battery greatly depends on the temperature change of each film-clad battery. Is done. Therefore, a temperature sensor may be attached to each battery cell that manages the temperature of the film-clad battery.
  • a temperature sensor may be attached to each battery cell that manages the temperature of the film-clad battery.
  • a temperature sensor on or near the surface of the film-clad battery in each cell case after the battery cells are stacked. Therefore, conventionally, a battery pack has been assembled by stacking a plurality of battery cells with temperature sensors attached in advance.
  • An object of the present invention is to provide a device case capable of accommodating a film-clad electrical device, in which a space into which a temperature sensor can be inserted is formed when a plurality of layers are stacked.
  • the device case of the present invention includes a housing member capable of housing a film-covered electrical device in which a chargeable / dischargeable electrical device element is covered with a film, and the film-covered electrical device housed in the housing member. And a holding member that can be held between the inner surface of the housing member.
  • the outer surface of the housing member has irregularities for forming a gap into which the temperature sensor is inserted between the outer surface of the housing member and the other device case when the other device case is overlaid. Is provided.
  • the unevenness can be formed by making a part of the outer surface of the housing member relatively higher than the other part.
  • the holding member is provided with a long side support portion in contact with the long side portion of the film-covered electrical device and a short side support portion in contact with the short side portion, and the short side support portion or the long side
  • the outer surface of the support portion is made higher than the other outer surface.
  • a concave portion is provided on the outer surface of the long side support portion or the short side support portion.
  • a battery cell can be manufactured by accommodating a film-covered battery in which a power generation element is covered with a film in the device case.
  • a battery pack can be manufactured by stacking a large number of the battery cells.
  • FIG. 1 is an exploded perspective view showing an example of an embodiment of a device case.
  • FIG. 2 is a perspective view showing an example of an assembled battery.
  • FIG. 3 is a perspective view showing the position of a thermistor inserted between battery cells.
  • FIG. 4 is a plan view showing the structure of the thermistor.
  • FIG. 5 is a perspective view showing another embodiment of the device case.
  • FIG. 6 is a perspective view showing another example of the assembled battery.
  • FIG. 7 is a perspective view showing an example of a film-clad battery.
  • the electric device to be accommodated in the device case of this example is a film-clad battery 100 shown in FIG.
  • the device case 4 of this example is composed of a housing member 1 and a holding member 2.
  • the housing member 1 is composed of a bottom plate 3 and a side wall 5 that are integrally formed of synthetic resin.
  • the bottom plate 3 has a frame shape as a whole.
  • the vertically raised side wall 5 is provided on the peripheral edge of the bottom plate 3.
  • the holding member 2 has a frame shape that can be fitted inside the side wall 5 of the housing member 1.
  • the holding member 2 is fitted inside the housing member 1 in which the film-clad battery 100 is housed, the peripheral portion of the film-clad battery 100 is sandwiched between the bottom plate 3 of the housing member 1 and the holding member 2.
  • the material of the holding member 2 is also a synthetic resin.
  • the bottom plate 3 of the housing member 1 includes a pair of long side support portions 6a and 6b and a pair of short side support portions that are in contact with the four sides of the film-clad battery 100 housed in the housing member 1, respectively. 7a, 7b.
  • the pair of long side support portions 6a and 6b are in contact with the long side portions 105a and 105b of the film-clad battery 100, respectively.
  • the short side support portion 7a contacts the short side portion 106a of the film-clad battery 100 and the positive electrode terminal 103 drawn from the short side portion 106a.
  • the short side support portion 7b is in contact with the short side portion 106b of the film exterior battery 100 and the negative electrode terminal 104 drawn from the short side portion 106b.
  • the long side support portions 6a and 6b have a belt-like shape and are arranged in parallel at a predetermined interval.
  • One short side support portion 7a connects one ends of the long side support portions 6a and 6b, and the other short side support portion 7b connects the other ends of the long side support portions 6a and 6b.
  • the flow path forming member 8 is stretched around the longitudinal center of the long side support portions 6a and 6b. The flow path forming member 8 is gradually enlarged as the width of the portion closer to the long side support portion 6b from the center approaches the long side support portion 6b.
  • the surface of the holding member 1 that faces the surface of the film-clad battery 100 accommodated in the holding member 1 is referred to as an “inner surface”.
  • a surface opposite to the inner surface is referred to as an “outer surface”.
  • the outer surface 10 of the short side support portions 7a and 7b is 1.0 mm or more higher than the outer surface 11 of the long side support portions 6a and 6b.
  • the outer surface 12 of the flow path forming portion 8 is also higher by 1.0 mm or more than the outer surface 11 of the long side support portions 6a and 6b.
  • a step of 1.0 mm or more exists between the outer surfaces 10 and 12 of the short side support portions 7a and 7b and the flow path forming portion 8 and the outer surface 11 of the long side support portions 6a and 6b.
  • the holding member 2 is also distinguished by referring to the surface facing the surface of the film-clad battery 100 as the inner surface and the surface opposite to the inner surface as the outer surface.
  • a first notch 13 having substantially the same width as the positive electrode terminal 103 and the negative electrode terminal 104 of the film exterior battery 100 is formed on the side wall 5 rising from the short side support portions 7a and 7b.
  • an electrode outlet is formed between the housing member 1 and the holding member 2.
  • a second notch 16 is formed in the side wall 5 rising from the long side support portion 6b of the housing member 1.
  • the second notch 16 is brought into contact with the recess 17 formed in the holding member 2 to form a smoke exhaust port.
  • the smoke exhaust port is for exhausting the gas discharged from the safety valve 107 of the film-clad battery 100 to the outside of the device case 4.
  • Safety valve 107 automatically activates when the internal pressure of film-coated battery 100 rises above a specified value. Open to.
  • the battery case 18 is formed by housing the film-clad battery 100 in the device case 4 having the above structure.
  • the assembled battery 20 is assembled.
  • a gap 21 is formed between adjacent battery cells 18 (device case 4).
  • a housing member 1 of one device case 4 and a holding member 2 of another device case 4 adjacent to the device case 4 are arranged. are matched.
  • the step is present between the outer side surfaces 10 and 12 of the short side support portions 7a and 7b and the flow path forming portion 8 of the storage member 1 and the outer surface 11 of the long side support portions 6a and 6b.
  • the outer surface 22 (FIG. 1) of the holding member 2 is flat. Therefore, a gap 21 corresponding to the step is formed between the outer surface 11 of the long side support 6a, 6b of the housing member 1 of one device case 4 and the outer surface 22 of the holding member 2 of the other device case 4. Is done.
  • the short side support portions 7a and 7b of the one device case 4 and the outer surfaces 10 and 12 of the flow forming portion 8 are in close contact with the outer surface 22 of the holding member 2 of the other device case 4. Therefore, after assembling the assembled battery 20 by stacking the desired number of battery cells 18, the temperature sensor (thermistor 23) can be inserted into the gap 21 formed between the adjacent battery cells 18. .
  • the temperature sensor thermoistor 23
  • FIG. 2 for the sake of convenience, only some of the gaps 21 are shown, and the others are omitted. Further, the force with which the positive electrode terminal 103 and the negative electrode terminal 104 shown in FIG. 1 are drawn out from each device case 4 is also omitted for the sake of convenience.
  • the gap 21 is formed at two locations between the flow path forming portion 8 and the short side support portion 7a of each device case 4 and between the flow path forming portion 8 and the short side support portion 7b.
  • the thermistor 23 may be inserted only into one gap 21 or the thermistor 23 may be inserted into both gaps 21. Furthermore, the force for inserting the thermistor 23 at any position in the gap 21 can be arbitrarily determined. However, since the film-covered battery 100 has a characteristic that the temperature at the center becomes higher, it is desirable to insert the thermistor 23 at a position where the temperature at the center can be measured more accurately from the viewpoint of temperature control. For example, as shown in FIG.
  • the thermistor 23 it is desirable to insert the thermistor 23 along the side surface 24 of the flow path forming portion 8 in the gap 21 formed between the flow path forming portion 8 and the short side support portion 7b. .
  • the thermistor 23 is inserted at the position shown in Fig. 3, If the thermistor 23 is arranged at a position close to the center of 100, variation in the arrangement position of the plurality of thermistors 23 in the assembled battery 20 connected by force is reduced.
  • the thermistor 23 is obtained by molding a temperature measuring electrode 30 with a resin so that a part of the temperature measuring electrode 30 is exposed.
  • the resin molding the temperature measuring electrode 30 (molded resin 31) is elongated along the axis of the temperature measuring electrode 30 and has a certain degree of elasticity.
  • the mold resin 31 has a role to protect the temperature measuring electrode 31 from being bent when some external force is applied to the temperature measuring electrode 30. In particular, when inserting the thermistor 23 into the gap 21 as described above, the temperature sensing electrode 30 will not bend even if the tip of the thermistor 23 is accidentally struck anywhere in the device case 4. Has a protective role.
  • the tip 32 of the mold resin 31 has an arcuate surface so as not to damage the surface of the film-clad battery 100 when inserted into the gap 21.
  • a stopper 33 having a larger diameter than the other part is formed in the body at the rear end of the mold resin 31. When the thermistor 23 is inserted into the gap 21 by a predetermined length, the stopper 33 restricts the thermistor 23 from being inserted into the gap 21 by hitting the outer surface 35 of the long support portion 6a (see FIG. 3). reference). Further, a substantially triangular locking portion 36 is formed in a body at a predetermined position in the longitudinal direction of the mold resin 31.
  • the locking portion 36 When the thermistor 23 is inserted into the gap 21 by a predetermined length, the locking portion 36 is locked to the inner side surface 37 of the long support portion 6a and prevents the thermistor 23 from coming off.
  • a protrusion capable of locking the locking portion 36 can be provided on the outer surface 11 of the long support portion 6a.
  • the thermistor 23 is inserted into the gap 21 in the orientation the exposed portion of the temperature measuring electrodes 30 faces the surface of the film covered battery 100 0
  • the thermistor 23 can be inserted between adjacent battery cells 18.
  • the film-clad battery 100 is housed in the device case 4 having the housing member 1 in which the recess 40 as shown in FIG.
  • an insertion port 41 into which the thermistor 23 can be inserted is formed between adjacent battery cells 18 (adjacent device cases 4), as shown in FIG.
  • the holding member 1 has a recess 40 as shown in FIG.
  • the insertion of the thermistor 23 is not hindered even if the outer surfaces 11 and 12 of the long side support 6a and the flow path forming unit 8 are flush with the outer surfaces 10 of the short side supports 7a and 7b (see FIG. 5, see Figure 6.
  • the temperature sensor is a thermistor as an example.
  • the temperature sensor may be a resistance temperature detector other than the thermistor (for example, a platinum resistance temperature detector).
  • a temperature sensor other than the resistance temperature detector may be used as long as it is a temperature sensor capable of side-heating the surface temperature of the film-clad battery.
  • the film-clad electrical device is not limited to a film-clad battery.
  • a film-covered electric device in which an electric device element (for example, an electric double layer capacitor or a capacitor element typified by an electrolytic capacitor) capable of storing electric energy is covered with a covering film is also included.
  • a gap in which a temperature sensor can be inserted is formed between adjacent device cases. Therefore, after two or more device cases containing film-covered electrical devices are stacked to form a device assembly, a temperature for measuring the temperature of the surface of the film-covered electrical device or the vicinity of the surface between adjacent device cases. Sensors can be placed.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

A temperature sensor is permitted to be arranged between device cases after stacking two or more device cases wherein film-packed electric devices are stored. A device case (4) which can store a film-packed battery (100) is provided with a storing member (1) having a bottom plate (3) which a circumference part of the film-packed battery (100) is brought into contact with, and a holding member (2) which can sandwich the circumference part of the film-packed battery (100) with the bottom plate (3). On an outer plane of the bottom plate (3), an uneven part is provided for forming a space (21) which permits a thermistor (23) to be inserted between the outer plane of the bottom plate (3) and a holding member (2) of the device case (4) when the uneven part is placed over the holding member (2) of other device case (4).

Description

明 細 書  Specification
デバイスケース、電池セル及び組電池  Device case, battery cell and battery pack
技術分野  Technical field
[0001] 本発明の一つは、充放電可能な電気デバイス要素がフィルムによって被覆された フィルム外装電気デバイスを収容可能なデバイスケースに関するものである。本発明 の他の一つは、前記デバイスケースにフィルム外装電池を収容してなるケース入りフ イルム外装電池に関するものである。  [0001] One aspect of the present invention relates to a device case that can accommodate a film-covered electrical device in which a chargeable / dischargeable electrical device element is covered with a film. Another aspect of the present invention relates to a cased film-clad battery in which a film-clad battery is accommodated in the device case.
背景技術  Background art
[0002] 近年、電動モータを駆動源とする電気自動車やハイブリッド電気自動車 (以下、単 に「電気自動車」 t ヽぅ）の開発が急速に進められて！/、る。電気自動車に搭載される 電動モータの電源には、電気自動車の操縦特性や一回の充電での走行距離等を向 上させるために、小型軽量ィ匕が求められる。力かる要求に応える電源を実現すベぐ 特開 2001— 76691号公報などに開示されているフィルム外装電池が開発されてい る。また、前記フィルム外装電池をケース（以下「セルケース」）内に個別に収容したケ ース入りのフィルム外装電池（以下「電池セル」）が開発されている。さらに、前記電池 セルを多数積層すると共に、積層された各電気セル同士を電気接続して所望の出力 電圧が得られるようにした電池セルの集合体 (以下「組電池」 )も開発されて!ヽる。  [0002] In recent years, the development of electric vehicles and hybrid electric vehicles (hereinafter simply referred to as “electric vehicles”) that use electric motors as the drive source has been rapidly progressing! / The power source of the electric motor mounted on the electric vehicle is required to be small and light in order to improve the driving characteristics of the electric vehicle and the distance traveled by a single charge. A film-clad battery disclosed in Japanese Patent Laid-Open No. 2001-76691 has been developed to realize a power supply that meets the demands. In addition, a case-packaged film-clad battery (hereinafter “battery cell”) in which the film-clad battery is individually accommodated in a case (hereinafter “cell case”) has been developed. Furthermore, a battery cell assembly (hereinafter referred to as an “assembled battery”) has been developed in which a large number of the battery cells are stacked and the stacked electric cells are electrically connected to obtain a desired output voltage! Speak.
[0003] 特開 2001— 76691号公報などに開示されて ヽるフィルム外装電池の基本構造を 図 7に示す。このフィルム外装電池 100は、正極側活電極、負極側活電極、及び電 解液力 なる発電要素 101がラミネートフィルム 102によって被覆されている。ラミネ 一トフイルム 102は、アルミニウムなどの金属フィルムと熱融着性の榭脂フィルムとを 重ね合わされたフィルムである。発電要素 101を被覆している 2枚のラミネートフィル ム 102の対向する 4辺は、気密に溶着されている。また、溶着されたラミネートフィル ム 102の一方の短辺部 106aからは、フィルム状の正電極端子 103が引き出され、他 方の短辺部 106bからはフィルム状の負電極端子 104が引き出されている。  [0003] FIG. 7 shows the basic structure of a film-clad battery disclosed in Japanese Patent Application Laid-Open No. 2001-76691. In this film-covered battery 100, a positive electrode side active electrode, a negative electrode side active electrode, and a power generation element 101 that is an electrolytic solution are covered with a laminate film 102. Laminate film 102 is a film in which a metal film such as aluminum and a heat-fusible resin film are laminated. The four opposite sides of the two laminate films 102 covering the power generation element 101 are air-tightly welded. The film-like positive electrode terminal 103 is drawn out from one short side portion 106a of the laminated film 102, and the film-like negative electrode terminal 104 is drawn out from the other short side portion 106b. Yes.
[0004] 組電池は、上記構造を有するフィルム外装電池がセルケース内に収容された電池 セルを多数備える。組電池の性能は、各フィルム外装電池の温度変化に大きく左右 される。そこで、フィルム外装電池の温度を管理すベぐ各電池セルに温度センサが 装着されることがある。この場合、より正確な温度を測定するためには、セルケース内 のフィルム外装電池の表面にセンサを接触させる力、フィルム外装電池の表面の極 めて近傍に温度センサを配置することが望ましい。しかし、組電池をなるベく小型化 するためには、各電池セルを隙間なく積層することが必要である。従って、電池セル を積層した後に各セルケース内のフィルム外装電池の表面やその近傍に温度センサ を設置することは極めて困難である。そこで従来は、予め温度センサが装着された複 数の電池セルを積層して組電池を組上げて ヽた。 [0004] An assembled battery includes a number of battery cells in which a film-cased battery having the above structure is housed in a cell case. The performance of the assembled battery greatly depends on the temperature change of each film-clad battery. Is done. Therefore, a temperature sensor may be attached to each battery cell that manages the temperature of the film-clad battery. In this case, in order to measure the temperature more accurately, it is desirable to place the temperature sensor very close to the surface of the film-clad battery, and the force for bringing the sensor into contact with the surface of the film-clad battery in the cell case. However, in order to reduce the size of the assembled battery, it is necessary to stack the battery cells without gaps. Therefore, it is extremely difficult to install a temperature sensor on or near the surface of the film-clad battery in each cell case after the battery cells are stacked. Therefore, conventionally, a battery pack has been assembled by stacking a plurality of battery cells with temperature sensors attached in advance.
発明の開示  Disclosure of the invention
[0005] 複数の電池セルに個別に温度センサを装着するには、多くの手間と時間を要する 。かかる手間と時間は、組電池を構成する電池セルの数が多くなるほど増大する。セ ンサ装着の手間と時間は、組電池の製造効率を低下させ、製造コストを上昇させる要 因の一つとなっていた。例えば、電動モータによって自動車を走行させるために必要 とされる 300V〜400V程度の電圧を得るためには、 100個程度の電池セルが必要と なる。 100個以上の電池セルの一つ一つに予め温度センサを装着するには、非常に 多くの手間と時間を要する。  [0005] It takes a lot of labor and time to attach temperature sensors individually to a plurality of battery cells. Such labor and time increase as the number of battery cells constituting the assembled battery increases. The effort and time required to install the sensor was one of the factors that reduced the manufacturing efficiency of the assembled battery and increased the manufacturing cost. For example, in order to obtain a voltage of about 300V to 400V, which is required for running an automobile with an electric motor, about 100 battery cells are required. It takes a lot of time and effort to attach a temperature sensor to each of the 100 or more battery cells in advance.
[0006] 本発明の目的は、フィルム外装電気デバイスを収容可能なデバイスケースであって 、複数積層されたときに、温度センサを挿入可能な空間が形成されるデバイスケース を提供することである。  [0006] An object of the present invention is to provide a device case capable of accommodating a film-clad electrical device, in which a space into which a temperature sensor can be inserted is formed when a plurality of layers are stacked.
[0007] 本発明のデバイスケースは、充放電可能な電気デバイス要素がフィルムによって被 覆されたフィルム外装電気デバイスを収容可能な収容部材と、前記収容部材内に収 容された前記フィルム外装電気デバイスを前記収容部材の内面との間に挟持可能な 保持部材とを有する。前記収容部材の外面には、他のデバイスケースと重ね合わさ れた際に、前記収容部材の外面と前記他のデバイスケースとの間に、温度センサが 挿入される隙間を形成するための凹凸が設けられている。  [0007] The device case of the present invention includes a housing member capable of housing a film-covered electrical device in which a chargeable / dischargeable electrical device element is covered with a film, and the film-covered electrical device housed in the housing member. And a holding member that can be held between the inner surface of the housing member. The outer surface of the housing member has irregularities for forming a gap into which the temperature sensor is inserted between the outer surface of the housing member and the other device case when the other device case is overlaid. Is provided.
[0008] 前記凹凸は、収容部材の外面の一部を他の部分よりも相対的に高くすることによつ て形成することができる。例えば、保持部材に、フィルム外装電気デバイスの長辺部 に接する長辺支持部と、短辺部に接する短辺支持部とを設け、短辺支持部又は長辺 支持部の外面を他方の外面よりも高くする。また、長辺支持部又は短辺支持部の外 面に凹部を設ける。 [0008] The unevenness can be formed by making a part of the outer surface of the housing member relatively higher than the other part. For example, the holding member is provided with a long side support portion in contact with the long side portion of the film-covered electrical device and a short side support portion in contact with the short side portion, and the short side support portion or the long side The outer surface of the support portion is made higher than the other outer surface. Also, a concave portion is provided on the outer surface of the long side support portion or the short side support portion.
[0009] 前記デバイスケースに、発電要素がフィルムによって被覆されたフィルム外装電池 を収容して電池セルを製作することができる。前記電池セルを多数積層して組電池 を製作することができる。  [0009] A battery cell can be manufactured by accommodating a film-covered battery in which a power generation element is covered with a film in the device case. A battery pack can be manufactured by stacking a large number of the battery cells.
図面の簡単な説明  Brief Description of Drawings
[0010] [図 1]デバイスケースの実施形態の一例を示す分解斜視図である。 FIG. 1 is an exploded perspective view showing an example of an embodiment of a device case.
[図 2]組電池の一例を示す斜視図である。  FIG. 2 is a perspective view showing an example of an assembled battery.
[図 3]電池セル間に挿入されたサーミスタの位置を示す斜視図である。  FIG. 3 is a perspective view showing the position of a thermistor inserted between battery cells.
[図 4]サーミスタの構造を示す平面図である。  FIG. 4 is a plan view showing the structure of the thermistor.
[図 5]デバイスケースの他の実施形態を示す斜視図である。  FIG. 5 is a perspective view showing another embodiment of the device case.
[図 6]組電池の他例を示す斜視図である。  FIG. 6 is a perspective view showing another example of the assembled battery.
[図 7]フィルム外装電池の一例を示す斜視図である。  FIG. 7 is a perspective view showing an example of a film-clad battery.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0011] 以下、本発明のデバイスケースの実施形態の一例について説明する。本例のデバ イスケースの収容対象である電気デバイスは、図 7に示すフィルム外装電池 100であ る。図 1に示すように、本例のデバイスケース 4は、収容部材 1と、保持部材 2とから構 成されている。さらに、収容部材 1は、合成樹脂によって一体成形された底板 3と、側 壁 5とから構成されている。底板 3は、全体として枠状の形態を有する。底板 3の周縁 には、該垂直に立ち上げられた側壁 5が設けられている。側壁 5の内側にフィルム外 装電池 100が収容されると、該フィルム外装電池 100の周縁部が底板 3に当接する。 一方、保持部材 2は、収容部材 1の側壁 5の内側に嵌合可能な枠状の形態を有する 。保持部材 2をフィルム外装電池 100が収容された収容部材 1の内側に嵌め込むと、 フィルム外装電池 100の周縁部が収容部材 1の底板 3と保持部材 2との間に挟まれる 。尚、保持部材 2の材質も合成樹脂である。以下、収容部材 1及び保持部材 2の詳細 について説明する。 Hereinafter, an example of an embodiment of the device case of the present invention will be described. The electric device to be accommodated in the device case of this example is a film-clad battery 100 shown in FIG. As shown in FIG. 1, the device case 4 of this example is composed of a housing member 1 and a holding member 2. Further, the housing member 1 is composed of a bottom plate 3 and a side wall 5 that are integrally formed of synthetic resin. The bottom plate 3 has a frame shape as a whole. On the peripheral edge of the bottom plate 3, the vertically raised side wall 5 is provided. When the film-equipped battery 100 is accommodated inside the side wall 5, the peripheral portion of the film-covered battery 100 comes into contact with the bottom plate 3. On the other hand, the holding member 2 has a frame shape that can be fitted inside the side wall 5 of the housing member 1. When the holding member 2 is fitted inside the housing member 1 in which the film-clad battery 100 is housed, the peripheral portion of the film-clad battery 100 is sandwiched between the bottom plate 3 of the housing member 1 and the holding member 2. The material of the holding member 2 is also a synthetic resin. Hereinafter, details of the housing member 1 and the holding member 2 will be described.
[0012] 収容部材 1の底板 3は、収容部材 1に収容されたフィルム外装電池 100の 4辺にそ れぞれ接触する一組の長辺支持部 6a、 6b及び一組の短辺支持部 7a、 7bを有する。 一組の長辺支持部 6a、 6bは、フィルム外装電池 100の長辺部 105a及び 105bとそ れぞれ接触する。短辺支持部 7aは、フィルム外装電池 100の短辺部 106a及び該短 辺部 106aから引き出されている正電極端子 103と接触する。短辺支持部 7bは、フィ ルム外装電池 100の短辺部 106b及び該短辺部 106bから引き出されている負電極 端子 104と接触する。 [0012] The bottom plate 3 of the housing member 1 includes a pair of long side support portions 6a and 6b and a pair of short side support portions that are in contact with the four sides of the film-clad battery 100 housed in the housing member 1, respectively. 7a, 7b. The pair of long side support portions 6a and 6b are in contact with the long side portions 105a and 105b of the film-clad battery 100, respectively. The short side support portion 7a contacts the short side portion 106a of the film-clad battery 100 and the positive electrode terminal 103 drawn from the short side portion 106a. The short side support portion 7b is in contact with the short side portion 106b of the film exterior battery 100 and the negative electrode terminal 104 drawn from the short side portion 106b.
[0013] 長辺支持部 6a、 6bは、帯状の形態を有し、所定間隔で平行に並んでいる。一方の 短辺支持部 7aは、長辺支持部 6a、 6bの一端同士を連結させ、他方の短辺支持部 7 bは長辺支持部 6a、 6bの他端同士を連結させている。また、長辺支持部 6a、 6bの長 手方向略中央には、流路形成部材 8が掛け渡されている。流路形成部材 8は、中央 より長辺支持部 6b寄りの部分の幅が長辺支持部 6bに近接するに従って次第に拡大 されている。  [0013] The long side support portions 6a and 6b have a belt-like shape and are arranged in parallel at a predetermined interval. One short side support portion 7a connects one ends of the long side support portions 6a and 6b, and the other short side support portion 7b connects the other ends of the long side support portions 6a and 6b. Further, the flow path forming member 8 is stretched around the longitudinal center of the long side support portions 6a and 6b. The flow path forming member 8 is gradually enlarged as the width of the portion closer to the long side support portion 6b from the center approaches the long side support portion 6b.
[0014] ここで、保持部材 1の表面のうち、該保持部材 1内に収容されたフィルム外装電池 1 00の表面と対向する面を「内面」と称する。また、前記内面と反対側の面を「外面」と 称する。短辺支持部 7a、 7bの外面 10は、長辺支持部 6a、 6bの外面 11よりも 1.0mm 以上高い。また、流路形成部 8の外面 12も長辺支持部 6a、 6bの外面 11よりも 1.0mm 以上高い。換言すれば、短辺支持部 7a、 7b及び流路形成部 8の外面 10、 12と長辺 支持部 6a、 6bの外面 11との間には 1.0mm以上の段差が存在している。尚、以下の 説明では、保持部材 2に関しても、フィルム外装電池 100の表面と対向する面を内面 、該内面と反対側の面を外面と称して区別する。  Here, the surface of the holding member 1 that faces the surface of the film-clad battery 100 accommodated in the holding member 1 is referred to as an “inner surface”. A surface opposite to the inner surface is referred to as an “outer surface”. The outer surface 10 of the short side support portions 7a and 7b is 1.0 mm or more higher than the outer surface 11 of the long side support portions 6a and 6b. Further, the outer surface 12 of the flow path forming portion 8 is also higher by 1.0 mm or more than the outer surface 11 of the long side support portions 6a and 6b. In other words, a step of 1.0 mm or more exists between the outer surfaces 10 and 12 of the short side support portions 7a and 7b and the flow path forming portion 8 and the outer surface 11 of the long side support portions 6a and 6b. In the following description, the holding member 2 is also distinguished by referring to the surface facing the surface of the film-clad battery 100 as the inner surface and the surface opposite to the inner surface as the outer surface.
[0015] 再び図 1を参照する。短辺支持部 7a、 7bから立ち上げられている側壁 5には、フィ ルム外装電池 100の正電極端子 103及び負電極端子 104と略同一幅の第 1の切欠 13が形成されている。収容部材 1の内側に保持部材 2を嵌め込むと、収容部材 1と保 持部材 2との間に、電極導出口が形成される。また、収容部材 1の長辺支持部 6bから 立ち上げられている側壁 5には第 2の切欠 16が形成されている。収容部材 1の内側 に保持部材 2が嵌め込まれると、第 2の切欠 16が保持部材 2に形成されている凹部 1 7と突き合わされて、排煙口が形成される。尚、排煙口は、フィルム外装電池 100の 安全弁 107から排出されたガスをデバイスケース 4の外に排気するためのものである 。安全弁 107は、フィルム外装電池 100の内圧が所定値以上に上昇すると、自動的 に開く。 [0015] Referring again to FIG. A first notch 13 having substantially the same width as the positive electrode terminal 103 and the negative electrode terminal 104 of the film exterior battery 100 is formed on the side wall 5 rising from the short side support portions 7a and 7b. When the holding member 2 is fitted inside the housing member 1, an electrode outlet is formed between the housing member 1 and the holding member 2. A second notch 16 is formed in the side wall 5 rising from the long side support portion 6b of the housing member 1. When the holding member 2 is fitted inside the housing member 1, the second notch 16 is brought into contact with the recess 17 formed in the holding member 2 to form a smoke exhaust port. The smoke exhaust port is for exhausting the gas discharged from the safety valve 107 of the film-clad battery 100 to the outside of the device case 4. Safety valve 107 automatically activates when the internal pressure of film-coated battery 100 rises above a specified value. Open to.
[0016] 以上の構造を有するデバイスケース 4内にフィルム外装電池 100を収容して電池セ ル 18を形成する。形成された電池セル 18を図 2に示すように同一の向きで多数枚積 層させると組電池 20が組み上がる。このとき、隣接する電池セル 18 (デバイスケース 4)の間に隙間 21が形成される。具体的には、複数の電池セル 18 (デバイスケース 4 )を同一の向きで積層すると、あるデバイスケース 4の収容部材 1と、このデバイスケー ス 4に隣接する他のデバイスケース 4の保持部材 2とが突き合わされる。このとき、収 容部材 1の短辺支持部 7a、 7b及び流路形成部 8の外面 10、 12と、長辺支持部 6a、 6bの外面 11との間には前記段差が存在している。一方、保持部材 2の外面 22 (図 1 )は平坦である。従って、一方のデバイスケース 4の収容部材 1の長辺支持部 6a、 6b の外面 11と、他方のデバイスケース 4の保持部材 2の外面 22との間に前記段差に応 じた隙間 21が形成される。これに対し、一方のデバイスケース 4の短辺支持部 7a、 7 b及び流形成部 8の外面 10、 12と、他方のデバイスケース 4の保持部材 2の外面 22 とはほぼ隙間なく密着する。よって、所望数の電池セル 18を積層して組電池 20を組 み立てた後に、隣接する電池セル 18間に形成されている隙間 21に温度センサ (サ 一ミスタ 23)を挿入することができる。尚、図 2では、便宜上一部の隙間 21のみを図 示し、その他は省略してある。また、各デバイスケース 4からは、図 1に示す正電極端 子 103及び負電極端子 104が引き出されている力 これも便宜上の理由から図示を 省略してある。  [0016] The battery case 18 is formed by housing the film-clad battery 100 in the device case 4 having the above structure. When the formed battery cells 18 are stacked in the same direction as shown in FIG. 2, the assembled battery 20 is assembled. At this time, a gap 21 is formed between adjacent battery cells 18 (device case 4). Specifically, when a plurality of battery cells 18 (device case 4) are stacked in the same direction, a housing member 1 of one device case 4 and a holding member 2 of another device case 4 adjacent to the device case 4 are arranged. Are matched. At this time, the step is present between the outer side surfaces 10 and 12 of the short side support portions 7a and 7b and the flow path forming portion 8 of the storage member 1 and the outer surface 11 of the long side support portions 6a and 6b. . On the other hand, the outer surface 22 (FIG. 1) of the holding member 2 is flat. Therefore, a gap 21 corresponding to the step is formed between the outer surface 11 of the long side support 6a, 6b of the housing member 1 of one device case 4 and the outer surface 22 of the holding member 2 of the other device case 4. Is done. On the other hand, the short side support portions 7a and 7b of the one device case 4 and the outer surfaces 10 and 12 of the flow forming portion 8 are in close contact with the outer surface 22 of the holding member 2 of the other device case 4. Therefore, after assembling the assembled battery 20 by stacking the desired number of battery cells 18, the temperature sensor (thermistor 23) can be inserted into the gap 21 formed between the adjacent battery cells 18. . In FIG. 2, for the sake of convenience, only some of the gaps 21 are shown, and the others are omitted. Further, the force with which the positive electrode terminal 103 and the negative electrode terminal 104 shown in FIG. 1 are drawn out from each device case 4 is also omitted for the sake of convenience.
[0017] 隙間 21は、各デバイスケース 4の流路形成部 8と短辺支持部 7aとの間、及び流路 形成部 8と短辺支持部 7bとの間の二箇所に形成される。一方の隙間 21にのみサーミ スタ 23を挿入してもよぐ双方の隙間 21にサーミスタ 23を挿入してもよい。さら〖こは、 隙間 21内の何れの位置にサーミスタ 23を挿入する力も任意に決定することができる 。もっとも、フィルム外装電池 100は、その中心部ほど高温になる特性を有するので、 温度管理の観点からは中心部の温度をより正確に測温可能な位置にサーミスタ 23を 挿入することが望ましい。例えば、図 3に示すように、流路形成部 8と短辺支持部 7bと の間に形成された隙間 21に、流路形成部 8の側面 24に沿ってサーミスタ 23を挿入 することが望ましい。図 3に示す位置にサーミスタ 23を挿入すると、フィルム外装電池 100の中心に近い位置にサーミスタ 23が配置されるば力りでなぐ組電池 20内にお ける複数のサーミスタ 23の配置位置のバラツキも少なくなる。 [0017] The gap 21 is formed at two locations between the flow path forming portion 8 and the short side support portion 7a of each device case 4 and between the flow path forming portion 8 and the short side support portion 7b. The thermistor 23 may be inserted only into one gap 21 or the thermistor 23 may be inserted into both gaps 21. Furthermore, the force for inserting the thermistor 23 at any position in the gap 21 can be arbitrarily determined. However, since the film-covered battery 100 has a characteristic that the temperature at the center becomes higher, it is desirable to insert the thermistor 23 at a position where the temperature at the center can be measured more accurately from the viewpoint of temperature control. For example, as shown in FIG. 3, it is desirable to insert the thermistor 23 along the side surface 24 of the flow path forming portion 8 in the gap 21 formed between the flow path forming portion 8 and the short side support portion 7b. . When the thermistor 23 is inserted at the position shown in Fig. 3, If the thermistor 23 is arranged at a position close to the center of 100, variation in the arrangement position of the plurality of thermistors 23 in the assembled battery 20 connected by force is reduced.
[0018] 次に、図 3に示すサーミスタ 23の構造について図 4を参照しながら詳細に説明する 。サーミスタ 23は、測温電極 30をその一部が露出するようにして榭脂でモールドした ものである。測温電極 30をモールドしている樹脂（モールド榭脂 31)は、測温電極 30 の軸線に沿って細長ぐかつ、ある程度の弾性を備えている。モールド榭脂 31は、測 温電極 30に何らかの外力が作用した際に、測温電極 31が屈曲しな 、ように保護す る役割を有する。特に、サーミスタ 23を上記のようにして隙間 21へ挿入する際に、サ 一ミスタ 23の先端を誤ってデバイスケース 4の何処かにぶっけてしまっても、測温電 極 30が屈曲しないように保護する役割を有する。さらに、モールド榭脂 31の先端 32 は、隙間 21への挿入時に、フィルム外装電池 100の表面を傷付けることがないように 円弧面とされている。また、モールド榭脂 31の後端には、他の部分よりも径の大きな ストッパー 33がー体に形成されている。このストッパー 33は、サーミスタ 23が所定長 だけ隙間 21へ挿入されると、長尺支持部 6aの外側面 35に当たって、サーミスタ 23 力 Sそれ以上隙間 21内へ挿入されることを規制する（図 3参照)。さらに、モールド榭脂 31の長手方向所定位置には、略三角形の係止部 36がー体に形成されている。この 係止部 36は、サーミスタ 23が所定長だけ隙間 21へ挿入されると、長尺支持部 6aの 内側面 37に係止し、サーミスタ 23の抜けを防止する。長尺支持部 6aの外面 11に、 係止部 36が係止可能な突起を設けておくこともできる。尚、サーミスタ 23は、測温電 極 30の露出している部分がフィルム外装電池 100の表面と対向する向きで隙間 21 へ挿入される 0 Next, the structure of the thermistor 23 shown in FIG. 3 will be described in detail with reference to FIG. The thermistor 23 is obtained by molding a temperature measuring electrode 30 with a resin so that a part of the temperature measuring electrode 30 is exposed. The resin molding the temperature measuring electrode 30 (molded resin 31) is elongated along the axis of the temperature measuring electrode 30 and has a certain degree of elasticity. The mold resin 31 has a role to protect the temperature measuring electrode 31 from being bent when some external force is applied to the temperature measuring electrode 30. In particular, when inserting the thermistor 23 into the gap 21 as described above, the temperature sensing electrode 30 will not bend even if the tip of the thermistor 23 is accidentally struck anywhere in the device case 4. Has a protective role. Further, the tip 32 of the mold resin 31 has an arcuate surface so as not to damage the surface of the film-clad battery 100 when inserted into the gap 21. In addition, a stopper 33 having a larger diameter than the other part is formed in the body at the rear end of the mold resin 31. When the thermistor 23 is inserted into the gap 21 by a predetermined length, the stopper 33 restricts the thermistor 23 from being inserted into the gap 21 by hitting the outer surface 35 of the long support portion 6a (see FIG. 3). reference). Further, a substantially triangular locking portion 36 is formed in a body at a predetermined position in the longitudinal direction of the mold resin 31. When the thermistor 23 is inserted into the gap 21 by a predetermined length, the locking portion 36 is locked to the inner side surface 37 of the long support portion 6a and prevents the thermistor 23 from coming off. A protrusion capable of locking the locking portion 36 can be provided on the outer surface 11 of the long support portion 6a. Incidentally, the thermistor 23 is inserted into the gap 21 in the orientation the exposed portion of the temperature measuring electrodes 30 faces the surface of the film covered battery 100 0
[0019] 図 5に示すように、保持部材 1の長尺支持部 6aの外面にサーミスタ 23を嵌め込み 可能な凹部 40を形成することによって、隣接する電池セル 18間に、サーミスタ 23を 挿入可能とすることもできる。すなわち、図 5に示すような凹部 40が形成された収容 部材 1を備えたデバイスケース 4内にフィルム外装電池 100を収容して電池セル 18と する。電池セル 18を複数枚積層させると、図 6に示すように、隣接する電池セル 18 ( 隣接するデバイスケース 4)間に、サーミスタ 23を挿入可能な挿入口 41が形成される 。さらに、保持部材 1に、図 5に示すような凹部 40が形成されていれば、該収容部材 1 の長辺支持部 6a及び流路形成部 8の外面 11、 12と、短辺支持部 7a、 7bの外面 10 とが面一であってもサーミスタ 23の挿入が阻害されることはない（図 5、図 6参照)。 As shown in FIG. 5, by forming a recess 40 into which the thermistor 23 can be fitted on the outer surface of the long support portion 6a of the holding member 1, the thermistor 23 can be inserted between adjacent battery cells 18. You can also That is, the film-clad battery 100 is housed in the device case 4 having the housing member 1 in which the recess 40 as shown in FIG. When a plurality of battery cells 18 are stacked, an insertion port 41 into which the thermistor 23 can be inserted is formed between adjacent battery cells 18 (adjacent device cases 4), as shown in FIG. Furthermore, if the holding member 1 has a recess 40 as shown in FIG. The insertion of the thermistor 23 is not hindered even if the outer surfaces 11 and 12 of the long side support 6a and the flow path forming unit 8 are flush with the outer surfaces 10 of the short side supports 7a and 7b (see FIG. 5, see Figure 6.
[0020] これまでは、温度センサがサーミスタである場合を例にとって本発明の実施形態を 説明した。しかし、温度センサは、サーミスタ以外の測温抵抗体 (例えば、白金測温 抵抗体)であってもよい。また、フィルム外装電池の表面温度を側温可能な温度セン サであれば、測温抵抗体以外の温度センサであってもよい。また、フィルム外装電気 デバイスは、フィルム外装電池に限定されるものではない。例えば、電気工ネルギを 内部に蓄積可能な電気デバイス要素 (例えば、電気二重層キャパシタゃ電解コンデ ンサに代表されるキャパシタ素子）が外装用フィルムによって被覆されたフィルム外装 電気デバイスも含まれる。 [0020] The embodiments of the present invention have been described so far by taking the case where the temperature sensor is a thermistor as an example. However, the temperature sensor may be a resistance temperature detector other than the thermistor (for example, a platinum resistance temperature detector). Further, a temperature sensor other than the resistance temperature detector may be used as long as it is a temperature sensor capable of side-heating the surface temperature of the film-clad battery. The film-clad electrical device is not limited to a film-clad battery. For example, a film-covered electric device in which an electric device element (for example, an electric double layer capacitor or a capacitor element typified by an electrolytic capacitor) capable of storing electric energy is covered with a covering film is also included.
産業上の利用可能性  Industrial applicability
[0021] 本発明によれば、 2以上のデバイスケースを重ね合わせた際に、隣接するデバイス ケース間に温度センサを挿入可能な隙間が形成される。従って、フィルム外装電気 デバイスが収容されたデバイスケースを 2以上積層させてデバイス集合体を形成した 後に、隣接するデバイスケース間に、フィルム外装電気デバイスの表面や表面近傍 の温度を測定するための温度センサを配置することができる。 [0021] According to the present invention, when two or more device cases are overlapped, a gap in which a temperature sensor can be inserted is formed between adjacent device cases. Therefore, after two or more device cases containing film-covered electrical devices are stacked to form a device assembly, a temperature for measuring the temperature of the surface of the film-covered electrical device or the vicinity of the surface between adjacent device cases. Sensors can be placed.

Claims

請求の範囲 The scope of the claims
[1] 充放電可能な電気デバイス要素がフィルムによって被覆されたフィルム外装電気デ バイスを収容可能な収容部材と、前記収容部材内に収容された前記フィルム外装電 気デバイスを前記収容部材の内面との間に挟持可能な保持部材とを有するデバイス ケースであって、  [1] A housing member capable of housing a film-clad electrical device in which a chargeable / dischargeable electrical device element is covered with a film, and the film-clad electrical device housed in the housing member as an inner surface of the housing member A device case having a holding member that can be sandwiched between
前記収容部材の外面に、他のデバイスケースと重ね合わされた際に、前記収容部 材の外面と前記他のデバイスケースとの間に、温度センサが挿入される隙間を形成 するための凹凸が設けられているデバイスケース。  On the outer surface of the housing member, there is provided an unevenness for forming a gap for inserting a temperature sensor between the outer surface of the housing member and the other device case when the other device case is overlaid. Device case.
[2] 前記収容部材は、該収容部材内に収容された前記フィルム外装電気デバイスの長 辺部に接する長辺支持部と、前記フィルム外装電気デバイスの短辺部に接する短辺 支持部とを有し、前記短辺支持部の外面が前記長辺支持部の外面よりも高!、位置に ある請求項 1記載のデバイスケース。  [2] The housing member includes a long side support portion that contacts a long side portion of the film-covered electrical device housed in the storage member, and a short side support portion that contacts a short side portion of the film-wrapped electrical device. 2. The device case according to claim 1, wherein an outer surface of the short side support portion is higher than an outer surface of the long side support portion.
[3] 前記収容部材は、該収容部材内に収容された前記フィルム外装電気デバイスの長 辺部に接する長辺支持部と、前記フィルム外装電気デバイスの短辺部に接する短辺 支持部とを有し、前記長辺支持部の外面には、凹部が形成されている請求項 1記載 のデバイスケース。  [3] The housing member includes: a long side support portion that contacts a long side portion of the film-covered electrical device housed in the storage member; and a short side support portion that contacts a short side portion of the film-wrapped electrical device. The device case according to claim 1, wherein a concave portion is formed on an outer surface of the long side support portion.
[4] 請求項 1記載のデバイスケースに、発電要素がフィルムによって被覆されたフィルム 外装電池が収容されて!ヽる電池セル。  [4] A battery cell in which the film case in which the power generation element is covered with a film is accommodated in the device case according to claim 1.
[5] 請求項 2記載のデバイスケースに、発電要素がフィルムによって被覆されたフィルム 外装電池が収容されて!ヽる電池セル。 [5] A battery cell in which the film case in which the power generation element is covered with a film is accommodated in the device case according to claim 2.
[6] 請求項 3記載のデバイスケースに、発電要素がフィルムによって被覆されたフィルム 外装電池が収容されて!ヽる電池セル。 [6] A battery cell in which the film case in which the power generation element is covered with a film is accommodated in the device case according to claim 3.
[7] 請求項 4記載の電池セルが 2以上積層され、隣接するデバイスケース間の隙間に 温度センサが配置されて!、る組電池。 [7] An assembled battery in which two or more battery cells according to claim 4 are stacked and a temperature sensor is arranged in a gap between adjacent device cases!
[8] 請求項 5記載の電池セルが 2以上積層され、隣接するデバイスケース間の隙間に 温度センサが配置されて!、る組電池。 [8] An assembled battery in which two or more battery cells according to claim 5 are stacked and a temperature sensor is arranged in a gap between adjacent device cases!
[9] 請求項 6記載の電池セルが 2以上積層され、隣接するデバイスケース間の隙間に 温度センサが配置されて!、る組電池。 [9] An assembled battery in which two or more battery cells according to claim 6 are stacked and a temperature sensor is arranged in a gap between adjacent device cases.
PCT/JP2005/017730 2004-12-20 2005-09-27 Device case, battery cell and assembled battery WO2006067903A1 (en)

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