JP2003142052A - Secondary battery module and secondary battery module assembly - Google Patents
Secondary battery module and secondary battery module assemblyInfo
- Publication number
- JP2003142052A JP2003142052A JP2001339144A JP2001339144A JP2003142052A JP 2003142052 A JP2003142052 A JP 2003142052A JP 2001339144 A JP2001339144 A JP 2001339144A JP 2001339144 A JP2001339144 A JP 2001339144A JP 2003142052 A JP2003142052 A JP 2003142052A
- Authority
- JP
- Japan
- Prior art keywords
- secondary battery
- frame
- battery module
- pressing force
- electrode material
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、リチウム二次電池
等の非水系電解液二次電池のように正極材と負極材をセ
パレータを介して積層配置してなる二次電池を複数個一
体的に組み立ててなる二次電池モジュールおよび二次電
池モジュール同士の組立体に係り、特に略方形の二次電
池モジュールおよび二次電池モジュール同士の組立体に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention integrally integrates a plurality of secondary batteries, such as a non-aqueous electrolyte secondary battery such as a lithium secondary battery, in which a positive electrode material and a negative electrode material are laminated and arranged with a separator interposed therebetween. The present invention relates to a rechargeable battery module and an assembly of rechargeable battery modules assembled with each other, and more particularly to a substantially rectangular rechargeable battery module and a reassembly of rechargeable battery modules.
【０００２】[0002]
【従来の技術】従来より、リチウム二次電池等の非水系
電解液二次電池は、ニッケル水素電池のような、従来の
二次電池に比べ、高容量化、長寿命化できるために、各
種携帯電子機器又は電気機器の電源に多用されている。
例えば現在においては、ノート型パソコン、ノート型ワ
ープロ、パームトップ（ポケット）パソコン、携帯電
話、ＰＨＳ、携帯ファックス、携帯プリンター、ヘッド
フォンステレオ、ビデオカメラ、携帯テレビ、ポータブ
ルＣＤ、ポータブルＭＤ、電動髭剃り機、電子手張、ト
ランシーバー、電動工具、ラジオ、テープレコーダ、デ
ジタルカメラ、携帯コピー機、携帯ゲーム機等の携帯端
末のみならず、電気自動車、ハイブリッド自動車、自動
販売機、電動カート、ロードレベリング用蓄電システ
ム、更にはより大容量の家庭用蓄電器、分散型電力貯蔵
機システム（据置型電化製品に内蔵）、及び病院や企業
の非常時電力供給システム等に用いられている。2. Description of the Related Art Conventionally, non-aqueous electrolyte secondary batteries such as lithium secondary batteries have various capacities and long lifespans as compared with conventional secondary batteries such as nickel hydrogen batteries. It is often used as a power source for portable electronic devices or electric devices.
For example, at present, laptop computers, laptop word processors, palmtop (pocket) computers, mobile phones, PHS, mobile faxes, mobile printers, headphone stereos, video cameras, mobile TVs, portable CDs, portable MDs, electric shavers. , Electronic handrails, transceivers, power tools, radios, tape recorders, digital cameras, mobile copiers, handheld game machines, and other mobile terminals, as well as electric vehicles, hybrid vehicles, vending machines, electric carts, power storage for load leveling. It is used in systems, more large-capacity home electric storage devices, distributed power storage systems (built into stationary appliances), and emergency power supply systems for hospitals and companies.
【０００３】このように多種の用途に用いられる正極活
物質、正極導電材、結着剤、正極集電体より構成される
正極と、負極活物質、結着剤、負極集電体、あるいはさ
らに負極導電材を加えた負極との間にセパレータを挟み
積層した電極体、電解液、電極体と電解液を密封し、か
つ電極体と接続された端子を有する電池容器で構成され
る。電極体は、正極、セパレータ、負極を積層して、各
電極から端子部を取り出した構造であっても、平板短冊
状の各電極を積層した構造であってもよい。すなわち、
対向する正極と負極の間にセパレータを挿んだ平板積層
構造の電極体を有する二次電池であればよい。そしてこ
のような電極体は巻回して円筒状に形成するものと、平
板状の短冊を積層して構成されるものとに分かれる。As described above, a positive electrode composed of a positive electrode active material, a positive electrode conductive material, a binder, and a positive electrode current collector used for various purposes, and a negative electrode active material, a binder, a negative electrode current collector, or further It is composed of an electrode body in which a separator is sandwiched between a negative electrode to which a negative electrode conductive material is added, an electrolytic solution, and a battery container having a terminal that seals the electrode body and the electrolytic solution and is connected to the electrode body. The electrode body may have a structure in which a positive electrode, a separator, and a negative electrode are stacked and the terminal portion is taken out from each electrode, or a structure in which flat plate-shaped strip-shaped electrodes are stacked. That is,
Any secondary battery may be used as long as it has an electrode body having a flat plate laminated structure in which a separator is inserted between the positive electrode and the negative electrode facing each other. Such an electrode body is divided into one that is wound and formed into a cylindrical shape, and one that is formed by stacking flat plate-shaped strips.
【０００４】本発明に適用される対向する正極と負極の
間にセパレータを挿んだ平板積層構造の電極体を有する
リチウムイオン二次電池は、例えば図１、図２及び図６
に内部構成として示されるように、正極活物質、正極導
電材、結着剤、正極集電体より構成される板状正極材
と、負極活物質、結着剤、負極集電体、あるいはさらに
負極導電材を加えた板状負極材との間に板状セパレータ
を挟み積層した電極体を電池容器内に電解液とともに密
封し、前記電池容器外側に端子部を配設して構成され
る。A lithium ion secondary battery having an electrode body of a flat plate laminated structure in which a separator is inserted between a positive electrode and a negative electrode, which are opposed to each other, applied to the present invention is, for example, FIG. 1, FIG. 2 and FIG.
As shown in the internal structure, a plate-shaped positive electrode material composed of a positive electrode active material, a positive electrode conductive material, a binder, and a positive electrode current collector, and a negative electrode active material, a binder, a negative electrode current collector, or further The electrode body is formed by sandwiching a plate-shaped separator between a plate-shaped negative electrode material to which a negative electrode conductive material is added and laminating it together with an electrolytic solution, and arranging a terminal portion outside the battery container.
【０００５】尚、電池容器は内部を絶縁被覆したステン
レス、若しくは絶縁耐食性コーティングを施した軟鋼等
が用いられる。又セパレータは、ポリプロピレン製の多
孔質膜を、更に電解液には、エチレンカーボネイト（Ｅ
Ｃ）とジメチルカーボネイト（ＤＭＣ）との混合溶媒に
ＬｉＰＦ６を溶解した電解液が用いられる。The battery container is made of stainless steel whose inside is coated with insulation, or mild steel which is coated with a corrosion-resistant material. The separator is a polypropylene porous film, and the electrolyte is ethylene carbonate (E
An electrolytic solution in which LiPF6 is dissolved in a mixed solvent of C) and dimethyl carbonate (DMC) is used.
【０００６】このような前記二次電池は約４Ｖの充電電
圧を有するため、本電池を６個直列接続すれば２４Ｖの
電池モジュールが、又３／２個の直並列接続を行えば、
１２Ｖで前記電池モジュールの２倍の電流容量の二次電
池モジュールが構成される。そして用途負荷が１００Ｖ
の場合は、前記二次電池を４個、２００〜２２０Ｖの病
院等の非常電源に用いる場合は、８〜９個夫々直列接続
され、更に３５０Ｖ前後の電気自動車の場合は１２個程
度直列接続される必要がある。Since such a secondary battery has a charging voltage of about 4V, a battery module of 24V can be formed by connecting six of the batteries in series, or a serial module of 3/2 can be connected.
A rechargeable battery module having a current capacity twice that of the battery module at 12V is constructed. And the application load is 100V
In the case of 4, the above secondary batteries are connected in series, when 8 to 9 are used in an emergency power source such as a hospital of 200 to 220V, and about 12 in the case of an electric vehicle of around 350V. Need to
【０００７】これらの二次電池モジュール群は、隣接す
る電池モジュール同士を１対ずつに接続しようとする
と、接続線が煩雑化するのみならず、設置面積も大スペ
ース化される。このため複数のモジュールを組みたてて
一体化をすることが好ましいが、電池の充放電時には、
反応による気体発生や負極材の膨張により、容器の膨出
と縮減を繰り返すために、容器の塑性変形を阻止する程
度に膨出を阻止する必要がある。又前記電池の容器内
は、正極材、負極及びその間にセパレータとが交互に積
層された構造となっており、積層による内部抵抗の増加
を抑制するために、前記積層体を所定の圧力で押圧して
接触性を高め、接触抵抗を低く抑える必要がある。In the secondary battery module group, when the adjacent battery modules are connected in pairs, not only the connecting line becomes complicated but also the installation area becomes large. Therefore, it is preferable to assemble a plurality of modules by assembling them, but when charging and discharging the battery,
Since the container is repeatedly swelled and contracted due to the generation of gas by the reaction and the expansion of the negative electrode material, it is necessary to prevent the swelling to such an extent as to prevent the plastic deformation of the container. In addition, the inside of the battery container has a structure in which a positive electrode material, a negative electrode, and separators are alternately laminated between them, and in order to suppress an increase in internal resistance due to lamination, the laminated body is pressed with a predetermined pressure. Therefore, it is necessary to improve the contact property and keep the contact resistance low.
【０００８】[0008]
【発明が解決しようとする課題】本発明の目的は、対向
する正極と負極の間にセパレータを挿んだ積層構造の電
極体を有する二次電池を含む二次電池モジュールを複数
個一体的に組みたてて構成する二次電池モジュールの組
立体を提供することにある。本発明の他の目的は前記一
体的に組みたてた各電池モジュールに適正な弾性力を付
勢して電池容器の膨出を阻止し、前記電極積層体に所定
の圧力を付勢して接触性を高め、接触抵抗を低く抑える
二次電池モジュールの組立体を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to integrally integrate a plurality of secondary battery modules including a secondary battery having a laminated electrode body in which a separator is inserted between a positive electrode and a negative electrode facing each other. An object is to provide an assembly of a rechargeable battery module that is assembled. Another object of the present invention is to apply a proper elastic force to each of the battery modules that are integrally assembled to prevent the battery container from bulging, and to apply a predetermined pressure to the electrode stack. An object of the present invention is to provide a rechargeable battery module assembly that enhances contactability and keeps contact resistance low.
【０００９】[0009]
【課題を解決するための手段】本第１発明は、略方形状
の電池容器の内部に、板状正極材と、板状負極材との間
にセパレータを挟み積層した電極体をセパレータを介し
て複数積層し、電解液とともに密封してなる略角形二次
電池を複数組み合わせた二次電池モジュールであって、
該略角形二次電池モジュールの相対する左右又は／及び
上下両面に、夫々一対の係合突起を設け、該係合突起を
他のモジュールの係合突起に嵌合させて、両モジュール
同士で上下と左右の位置規制が行われて固定されること
を特徴とするモジュール組立体を提案し、より好ましく
は係合突起により固定させた一対の二次電池モジュール
の対面する二面間に、前記係合突起の高さに対応する、
偏平空間を形成するとともに、該偏平空間に押圧力付勢
部材を介装したことを特徴とする。According to the first aspect of the present invention, an electrode body in which a separator is sandwiched between a plate-shaped positive electrode material and a plate-shaped negative electrode material is placed inside a substantially rectangular battery container with a separator interposed therebetween. A secondary battery module in which a plurality of substantially rectangular secondary batteries, which are formed by stacking a plurality of layers and sealing together with an electrolytic solution, are combined.
A pair of engaging protrusions is provided on each of the opposite left, right, and / or upper and lower surfaces of the substantially prismatic secondary battery module, and the engaging protrusions are fitted to the engaging protrusions of another module so that the upper and lower sides of both modules can be fitted together. And a left and right position regulation is performed and fixed, and a module assembly is proposed, more preferably, between the two facing surfaces of a pair of secondary battery modules fixed by engaging protrusions. Corresponding to the height of the compound protrusion,
The flat space is formed, and a pressing force urging member is interposed in the flat space.
【００１０】かかる発明によれば、前記係合突起同士の
スライド嵌合により二次電池モジュール同士を左右上下
に位置規制して一体的に組みたてることが出来るととも
に、押圧力付勢部材の弓形状板バネ部が、モジュールの
係合突起により相対するモジュール両面間の偏平空間に
弾性力を付勢して前記一体的に組みたてた各電池モジュ
ールに上下両面より適正な弾性力を付勢して電池容器の
膨出阻止と前記電極積層体に所定の圧力を付勢して接触
性を高め、接触抵抗を低く抑える事が出来る。According to this invention, the secondary battery modules can be assembled integrally by regulating the positions of the secondary battery modules vertically and vertically by the sliding fitting of the engaging projections, and the bow of the pressing force urging member. The shaped leaf springs apply elastic force to the flat space between the opposite sides of the module by the engaging protrusions of the module to apply appropriate elastic force to the battery modules that are integrally assembled from above and below. Thus, it is possible to prevent the battery container from bulging and to apply a predetermined pressure to the electrode laminate to enhance the contact property and suppress the contact resistance to a low level.
【００１１】又前記係合突起を矩形状突起と鍵型状突起
の組み合わせで構成することにより、矩形状突起同士の
接触嵌合によりモジュール左右（面内方向）方向の位置
規制が、又鍵型状突起同士の接触嵌合によりモジュール
左右（面内方向）と上下方向（面離間方向）の位置規制
ができ精度良く嵌合固定できる。更に前記押圧力付勢部
材を、平板と平板の適宜位置に上側と下側に***させた
バネ部材で構成することにより、相対するモジュール面
に均等に弾性力を付勢できる。尚、前記上下の板バネ部
は同一位置に設けずに、左右に隣接して交互に設けるよ
うに構成すれば、平板状の板バネ部材をプレス成形で一
発成形できる。Further, by forming the engaging projections by combining the rectangular projections and the key-shaped projections, the rectangular projections are contact-fitted with each other, whereby the position of the module in the left-right direction (in-plane direction) is regulated, and the key-shaped projections are also provided. By the contact fitting of the protrusions, the positions of the module left and right (in-plane direction) and the vertical direction (plane separating direction) can be regulated, and fitting and fixing can be performed accurately. Further, by forming the pressing force urging member by a flat plate and a spring member that is bulged upward and downward at appropriate positions on the flat plate, elastic force can be uniformly urged to the opposing module surfaces. If the upper and lower leaf spring portions are not provided at the same position but are alternately provided adjacent to each other on the left and right sides, a flat leaf spring member can be formed by a single press molding.
【００１２】又本発明は、係合突起により相対する電池
モジュール両面の押圧力付勢部材と接触する部位に内部
の電極と接続させた端子板を露出させ、該端子板を押圧
力付勢部材に対面する位置に設けた端子接続部と接触可
能に構成し、そして平板は絶縁部材で、バネ部材は良導
電性の材料で形成し、電池モジュールの底面と上面に設
けた＋と−の端子板に接続可能に構成する。Further, according to the present invention, the terminal plate connected to the internal electrode is exposed at the portion of the both sides of the battery module that contacts the pressing force urging member by the engaging protrusions, and the terminal plate is pushed. , The flat plate is an insulating member, the spring member is made of a material having good conductivity, and the + and-terminals provided on the bottom surface and the top surface of the battery module. It can be connected to a board.
【００１３】かかる構成によれば、独立した端子接続部
が不要になるとともに、モジュールの左右両側に端子部
が突設露出することなく、係合突起により嵌合され、電
池モジュールの底面と上面間の閉ざされた偏平空間内に
電気的接続部が位置するために、極めて安全である。According to this structure, an independent terminal connecting portion is not necessary, and the terminal portions are fitted by engaging protrusions on both left and right sides of the module without being projected and exposed. It is extremely safe because the electrical connections are located in the closed flat space of the.
【００１４】本第２発明は方形状の電池容器の内部に、
板状正極材と、板状負極材との間にセパレータを挟み積
層した電極体を配置し、電解液とともに密封してなる略
角形二次電池を複数個組み合わせた二次電池モジュール
群と、前記電池を複数個上下に積層するか若しくは左右
に並置した状態で、該電池群を位置固定するフレーム枠
とを有し、前記フレーム枠が分割された分割フレーム部
材であって、前記電池群を位置固定する際に締め付けネ
ジまたはピンにより一体化させるフレーム枠であること
を特徴とし、好ましくは前記電池群に押圧力を付勢する
付勢フレーム部材が前記分割フレーム部材を間に介装し
たことを特徴とする。According to the second aspect of the present invention, the inside of the rectangular battery container is
A plate-shaped positive electrode material, a plate-shaped negative electrode material, a separator is sandwiched between the electrode bodies are arranged, a secondary battery module group in which a plurality of substantially rectangular secondary batteries formed by sealing together with an electrolytic solution are combined, and A frame member for fixing a position of the battery group in a state in which a plurality of batteries are vertically stacked or arranged side by side, and the frame frame is a divided frame member, and the battery group is positioned. It is characterized in that it is a frame frame that is integrated by tightening screws or pins when fixing, and preferably, a biasing frame member for biasing the pressing force to the battery group has the divided frame member interposed therebetween. Characterize.
【００１５】この場合、好ましくは前記フレーム枠の電
池群と対面する側に押圧力付勢部材が配設されている構
成にしても、又前記フレーム枠自体を締め付けネジによ
る締め付け力により弾性変形可能に構成しても、更には
両者の組み合わせでも良い。In this case, preferably, even if the pressing force urging member is arranged on the side of the frame frame facing the battery group, the frame frame itself can be elastically deformed by the tightening force of the tightening screw. Alternatively, both may be combined.
【００１６】本発明は電池同士の固定に前記第１発明の
ような係合突起ではなく、例えばプラスチックフレーム
枠を用いている。そしてかかる角形リチウム二次電池同
士は左右若しくは上下に密着配置した状態で、分割され
た方形枠状のプラスチックフレームにて囲撓して左右上
下を固定する。そして、前記分割フレーム枠の途中位置
に介装した押圧力付勢フレーム部材により電池容器内に
内装した電極体の積層方向（垂直方向）に緊締されるよ
うに構成される。The present invention uses, for example, a plastic frame for fixing the batteries to each other, instead of the engaging projections as in the first invention. Then, the prismatic lithium secondary batteries are tightly attached to each other on the left and right sides or the top and bottom sides, and are bent and surrounded by a divided rectangular frame-shaped plastic frame to fix the left and right sides and top and bottom. Further, it is configured to be tightened in the stacking direction (vertical direction) of the electrode body housed in the battery container by the pressing force urging frame member interposed at an intermediate position of the divided frame frame.
【００１７】かかる発明によれば、前記プラスチックフ
レームの金属ピンまたはネジの固定によって水平に並置
した二次電池同士を一体的に固定することが出来るとと
もに、押圧力付勢フレーム部材の弓形状板バネが、モジ
ュール左右両面間に弾性力を付勢し且つ、金属ピンまた
はネジ軸の締め付け力によってフレーム枠の枠体が弾性
変形して前記一体的に固定した各電池に上下左右両面よ
り適正な弾性力を付勢して電池容器の膨出を阻止し、前
記電極積層体に所定の圧力を付勢して接触性を高め、接
触抵抗を低く抑える事が出来る。According to this invention, the horizontally arranged secondary batteries can be integrally fixed to each other by fixing the metal pins or screws of the plastic frame, and the bow-shaped leaf spring of the pressing force energizing frame member can be fixed. However, the elastic force is applied between the left and right sides of the module, and the frame body of the frame is elastically deformed by the tightening force of the metal pin or the screw shaft, and the proper elasticity is applied to the integrally fixed batteries from the upper, lower, left and right sides. A force can be applied to prevent the battery container from swelling, and a predetermined pressure can be applied to the electrode laminate to improve the contact property and keep the contact resistance low.
【００１８】[0018]
【発明の実施の形態】以下、本発明を図に示した実施例
を用いて詳細に説明する。但し、この実施例に記載され
る構成部品の寸法、形状、その相対配置などは特に特定
的な記載がない限り、この発明の範囲をそれのみに限定
する趣旨ではなく単なる説明例に過ぎない。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings. However, unless otherwise specified, the dimensions, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention thereto, but are merely illustrative examples.
【００１９】図１は本発明の第１実施形態に係る二次電
池モジュールの組立構造を示す断面図、図３は、図１に
使用される電池モジュールを示す斜視図、図４は図１に
使用される押圧力付勢体を示す斜視図である。図１にお
いて、本発明の実施形態に係るリチウムイオン二次電池
モジュール１Ａ、１Ｂは、長方形状の二次電池２が複数
内蔵されている構成、具体的には二次電池２の容器内部
に、正極活物質、正極導電材、結着剤、正極集電体より
構成される方形の板状正極材３Ａと、負極活物質、結着
剤、負極集電体、あるいはさらに負極導電材を加えた方
形の板状負極材３Ｂとの間に方形の板（膜）状セパレー
タ３Ｃを挟み水平方向に積層した電極体３と電解液を密
封した２次電池２を４個モジュール内に収納して構成さ
れる。FIG. 1 is a sectional view showing an assembly structure of a secondary battery module according to the first embodiment of the present invention, FIG. 3 is a perspective view showing a battery module used in FIG. 1, and FIG. 4 is shown in FIG. It is a perspective view which shows the pressing force biasing body used. In FIG. 1, a lithium ion secondary battery module 1A, 1B according to an embodiment of the present invention has a configuration in which a plurality of rectangular secondary batteries 2 are incorporated, specifically, in a container of the secondary battery 2, A rectangular plate-shaped positive electrode material 3A composed of a positive electrode active material, a positive electrode conductive material, a binder, and a positive electrode current collector, and a negative electrode active material, a binder, a negative electrode current collector, or a negative electrode conductive material was added. A rectangular plate (membrane) separator 3C is sandwiched between a rectangular plate negative electrode material 3B and an electrode body 3 which is laminated in the horizontal direction, and four secondary batteries 2 in which an electrolytic solution is sealed are housed in a module. To be done.
【００２０】そしてかかる角形リチウム二次電池モジュ
ール１Ａの上下両面には、鍵型突起１１Ａ、１１Ｂと垂
直突起１２Ａ、１２Ｂからなる一対の係合突起１０Ａ、
１０Ｂを設け、他の電池モジュール１Ｂの係合突起１０
Ｂ、１０Ａと係合し、一体的に係合且つ組立可能に構成
する。On both upper and lower surfaces of the prismatic lithium secondary battery module 1A, a pair of engaging projections 10A composed of key-shaped projections 11A, 11B and vertical projections 12A, 12B,
10B is provided, and the engagement protrusion 10 of another battery module 1B is provided.
B and 10A are engaged with each other so that they can be integrally engaged and assembled.
【００２１】即ち、図３に示すように、下面側に位置す
る係合突起１０Ｂは、左右両側面に沿って垂直下方に延
在させて、その内の垂直突起１２Ｂは断面矩形状に形成
し、一方鍵型突起１１Ｂは内側に向けてＬ字状に折曲さ
せて構成する。又上面側に位置する係合突起１０Ａは、
左右両側面の前記下面側係合突起１０Ｂの肉厚分だけ、
内側に寄せた位置より垂直上方に延在させて、その内の
垂直突起１２Ａは断面矩形状に形成し、一方鍵型突起１
１Ａは外側に向けてＬ字状に折曲させて構成する。That is, as shown in FIG. 3, the engaging projection 10B located on the lower surface side extends vertically downward along the left and right side surfaces, and the vertical projection 12B therein has a rectangular cross section. On the other hand, the key-shaped projection 11B is formed by bending the key-shaped projection 11B inwardly into an L shape. Further, the engagement protrusion 10A located on the upper surface side is
By the thickness of the lower surface side engaging projections 10B on the left and right side surfaces,
It extends vertically upward from the position shifted inward, and the vertical projection 12A therein has a rectangular cross section, while the key-shaped projection 1
1A is formed by bending it toward the outside in an L shape.
【００２２】この結果、一の電池モジュール１Ａの下面
の係合突起１０Ｂを他の電池モジュール１Ｂの上面に接
触させた位置で係合突起１０Ａに嵌合するようにスライ
ドさせることにより、上下両面の係合突起同士係合突起
１０Ａ、１０Ｂがきっちり嵌合し、垂直突起１２Ａ、１
２Ｂ側では左右の位置規制が、鍵型突起１１Ａ、１１Ｂ
側では上下と左右の位置規制が行われてきっちり固定さ
れる。そしてこの際上下両側の電池モジュール１Ａ、１
Ｂの底面と上面間には、前記係合突起１０Ａ、１０Ｂの
高さ分だけ、偏平方形状の空間１３が形成されるので、
その部分で電池モジュール１Ａ、１Ｂの電池容器２の膨
出を許容する。そこで前記電池モジュール１Ａ、１Ｂ間
の偏平空間１３に図４に示す板バネ状の押圧力付勢部材
１５を介装する。押圧力付勢部材１５は、金属若しくは
樹脂板からなる平板１６に、電池モジュール１Ａ、１Ｂ
間の偏平空間１３の挿入方向に３本の帯状空間１６ａ〜
ｃを打ち抜いて形成し、該帯状空間１６ａ〜ｃに夫々上
下に弓形状に形成した板バネ部材１７を固着する。この
場合、前記上下の弓型板バネ部材１７は同一位置に設け
ずに、左右に隣接して交互に設けるように構成すれば、
平板状の板バネ部材１７をプレス成形で一発成形でき
る。この場合は、上下でその数が一致するように設定し
なければ均圧押圧力の発生が困難になる。As a result, the engaging protrusion 10B on the lower surface of one battery module 1A is slid so as to be fitted to the engaging protrusion 10A at a position where the engaging protrusion 10B contacts the upper surface of the other battery module 1B. Engagement protrusions Engagement protrusions 10A, 10B fit tightly, vertical protrusions 12A, 1
On the 2B side, the left and right position restrictions are key-shaped protrusions 11A and 11B.
On the side, the top and bottom and left and right positions are regulated and they are firmly fixed. At this time, the battery modules 1A, 1
Between the bottom surface and the top surface of B, the space 13 having a square shape is formed by the height of the engaging protrusions 10A and 10B.
Swelling of the battery container 2 of the battery modules 1A and 1B is allowed at that portion. Therefore, a leaf spring-shaped pressing force urging member 15 shown in FIG. 4 is interposed in the flat space 13 between the battery modules 1A and 1B. The pressing force urging member 15 includes a flat plate 16 made of a metal or a resin plate and a battery module 1A, 1B.
Three strip-shaped spaces 16a in the insertion direction of the flat space 13 between
c is punched out, and the leaf spring members 17 formed in an upper and lower bow shape are respectively fixed to the strip-shaped spaces 16a to 16c. In this case, if the upper and lower bow-shaped leaf spring members 17 are not provided at the same position but are alternately provided adjacent to each other on the left and right,
The flat leaf spring member 17 can be formed in one shot by press molding. In this case, it is difficult to generate the equalizing pressing force unless the numbers are set to be the same at the top and bottom.
【００２３】そして前記押圧力付勢部材１５は、上下両
側の電池モジュール１Ａ、１Ｂのスライド嵌合動作時
に、若しくはスライド嵌合の後に、電池モジュール１
Ａ、１Ｂ上下両面間の偏平空間１３に装入する。この結
果、前記係合突起１０Ａ、１０Ｂ同士のスライド嵌合に
より二次電池モジュール１Ａ、１Ｂ同士を左右上下に位
置規制して一体的に組みたてることが出来るとともに、
押圧力付勢部材１５の弓形状板バネ部材１７が、電池モ
ジュール１Ａ、１Ｂ上下両面間の偏平空間１３に弾性力
を付勢して前記一体的に組みたてた各電池モジュール１
Ａ、１Ｂに上下両面より適正な弾性力を付勢して電池容
器の膨出を阻止し、前記電極積層体に所定の圧力を付勢
して接触性を高め、接触抵抗を低く抑える事が出来る。The pressing force urging member 15 is provided on the battery module 1 during the slide fitting operation of the battery modules 1A and 1B on the upper and lower sides or after the slide fitting.
A, 1B are loaded into the flat space 13 between the upper and lower surfaces. As a result, the secondary battery modules 1A and 1B can be assembled in an integrated manner with the positions of the secondary battery modules 1A and 1B regulated vertically and horizontally by the sliding fitting of the engagement protrusions 10A and 10B.
The bow-shaped leaf spring member 17 of the pressing force urging member 15 urges an elastic force to the flat space 13 between the upper and lower surfaces of the battery modules 1A, 1B to integrally assemble the battery modules 1.
It is possible to prevent the battery container from swelling by applying proper elastic forces to the upper and lower surfaces of A and 1B, and to apply a predetermined pressure to the electrode laminate to improve the contact property and keep the contact resistance low. I can.
【００２４】図２は本発明の第２実施形態に係る二次電
池モジュールの組立構造を示す概略断面図で、押圧力付
勢部材１５に接続端子機能を持たせている。図３は図２
に使用される電池モジュール１Ａ、１Ｂを示す斜視図、
図５は図２に使用される押圧力付勢部材１５Ａを示す斜
視図である。尚、同一符号は、同一機能部材を示す。さ
て図１に示す実施形態では、独立した端子接続部を設け
ねばならない。そこで本実施形態では、押圧力付勢部材
１５Ａに接続端子機能を持たせ独立した端子接続部を省
略させている。即ち、電池モジュール１Ａ、１Ｂの底面
と上面の押圧力付勢部材１５Ａの右側と左側の板バネ部
１７Ａ、１７Ｃと接触する部位には、＋と−の端子板０
５を露出させる。一方、押圧力付勢部材１５Ａは、平板
１６Ａを絶縁性の樹脂板で形成し、該絶縁性平板１６Ａ
の、電池モジュール１Ａ、１Ｂ間の偏平空間１３の挿入
方向に３本の帯状空間１６ａ〜ｃを打ち抜いて形成し、
該帯状空間１６ａ〜ｃに夫々上下に弓形状に形成した板
バネ部材１７Ａ、１７Ｂ、１７Ｃを固着するとともに、
左右の板バネ部材１７Ａ、１７Ｃは良導電性の材料で形
成し、電池モジュール１Ａ、１Ｂの底面と上面に設けた
＋と−の端子板０５に接続可能に構成する。FIG. 2 is a schematic sectional view showing the assembly structure of the secondary battery module according to the second embodiment of the present invention, in which the pressing force urging member 15 has a connection terminal function. FIG. 3 is FIG.
Perspective view showing the battery modules 1A, 1B used in
FIG. 5 is a perspective view showing the pressing force urging member 15A used in FIG. The same reference numerals indicate the same functional members. Now, in the embodiment shown in FIG. 1, an independent terminal connection must be provided. Therefore, in this embodiment, the pressing force urging member 15A is provided with a connection terminal function and an independent terminal connection portion is omitted. That is, the positive and negative terminal plates 0 are provided at the portions of the bottom surface and the upper surface of the battery modules 1A and 1B that are in contact with the right and left leaf spring portions 17A and 17C of the pressing force urging member 15A.
Expose 5. On the other hand, in the pressing force urging member 15A, the flat plate 16A is formed of an insulating resin plate, and the insulating flat plate 16A is formed.
Of the battery module 1A, 1B is formed by punching out three strip-shaped spaces 16a to 16c in the insertion direction of the flat space 13 between the battery modules 1A and 1B.
While fixing the leaf spring members 17A, 17B, 17C formed in the upper and lower bow shapes in the strip-shaped spaces 16a to 16c respectively,
The left and right leaf spring members 17A and 17C are made of a material having good conductivity, and are configured to be connectable to the + and-terminal plates 05 provided on the bottom and top surfaces of the battery modules 1A and 1B.
【００２５】かかる構成によれば、独立した端子接続部
が不要になるとともに、電池モジュール１Ａ、１Ｂの左
右両側に端子部５が突設露出することなく、係合突起１
０Ａ、１０Ｂにより嵌合され、電池モジュール１Ａ、１
Ｂの底面と上面間の閉ざされた偏平空間１３内に電気的
接続部０５、１７Ａ、１７Ｃが位置するために、極めて
安全である。According to this structure, an independent terminal connecting portion is not necessary, and the engaging projection 1 is provided without exposing the terminal portions 5 on the left and right sides of the battery modules 1A and 1B.
0A, 10B are fitted together, and battery modules 1A, 1
It is extremely safe because the electrical connection parts 05, 17A and 17C are located in the closed flat space 13 between the bottom surface and the top surface of B.
【００２６】図６は、本発明の第３実施形態に係る二次
電池モジュールの組立構造を示す断面図で、電池１Ｃ、
１Ｄ同士の固定にプラスチックフレーム枠２０を用いて
いる。図７は本実施形態に用いるプラスチックフレーム
枠２０と押圧力付勢フレーム部材２５の斜視図である。
本発明の実施形態に係るリチウムイオン二次電池１Ｃ、
１Ｄは、縦長長方形状の電池容器２の内部に、方形の板
状正極材３Ａと、方形の板状負極材３Ｂとの間に方形の
板（膜）状セパレータ３Ｃを挟み左右に積層した電極体
をセパレータ（膜）４を介して複数積層した電極体と電
解液を密封し、前記電池容器２外側に電極体３の正極材
３Ａと負極材３Ｂを夫々直列若しくは直並列させた端子
部５を配設して構成される。そしてかかる角形リチウム
二次電池１Ｃ、１Ｄ同士は方形枠状のプラスチックフレ
ーム枠２０にて囲撓して左右上下を固定する。そして図
７に示されるように、前記プラスチックフレーム枠途中
位置に介装した押圧力付勢フレーム部材２５により電池
容器２内に内装した電極体３の積層方向（垂直方向）に
緊締されるように構成される。FIG. 6 is a sectional view showing the assembly structure of the secondary battery module according to the third embodiment of the present invention.
A plastic frame 20 is used to fix the 1Ds. FIG. 7 is a perspective view of the plastic frame 20 and the pressing force urging frame member 25 used in this embodiment.
A lithium ion secondary battery 1C according to an embodiment of the present invention,
1D is an electrode in which a rectangular plate (membrane) separator 3C is sandwiched between a rectangular plate-shaped positive electrode material 3A and a rectangular plate-shaped negative electrode material 3B inside a vertically long rectangular battery container 2 and laminated on the left and right. A terminal part 5 in which a plurality of electrodes are laminated via a separator (membrane) 4 and an electrolytic solution is sealed, and the positive electrode material 3A and the negative electrode material 3B of the electrode body 3 are respectively arranged in series or in series parallel to the outside of the battery container 2. Is arranged. Then, the rectangular lithium secondary batteries 1C and 1D are surrounded and bent by a rectangular frame-shaped plastic frame 20 to fix the left, right, and top. Then, as shown in FIG. 7, a pressing force urging frame member 25 provided at an intermediate position of the plastic frame is tightened in the stacking direction (vertical direction) of the electrode body 3 housed in the battery container 2. Composed.
【００２７】プラスチックフレーム枠は、中間に平行の
２本のモジュール支持棒２６を有する方形枠の４つの角
隅部下面に突設枠２８Ａが垂下されている上部フレーム
２１と、Ｈ型の一対の中間フレーム２３、２３と、中間
に平行の２本のモジュール支持棒２７を有する方形枠の
４つの角隅部上面に突設枠２８Ｂが垂設されている下部
フレーム２２と、上部フレーム２１と中間フレーム２３
の間、中間フレーム２３と下部フレーム２２の間に夫々
介装される一対の押圧力付勢フレーム２５、２５よりな
り、前記フレーム２１〜２５全ては、４つの角隅部に対
応する位置に、ピン孔２９を挿設し、４本の金属ピンま
たはネジ３０にて前記全てのフレーム２１〜２５を一体
的に固定可能に構成されている。The plastic frame includes a top frame 21 in which projecting frames 28A are hung on the lower surfaces of the four corners of a rectangular frame having two parallel module support rods 26 in the middle, and a pair of H-shaped frames. Intermediate frames 23, 23, a lower frame 22 in which projecting frames 28B are hung vertically on the upper surfaces of the four corners of a rectangular frame having two parallel module support rods 27 in the middle, the upper frame 21, and the middle Frame 23
Between the intermediate frame 23 and the lower frame 22, each of which is composed of a pair of pressing force urging frames 25, 25, all of the frames 21 to 25 are located at positions corresponding to four corners. A pin hole 29 is inserted and all the frames 21 to 25 can be integrally fixed by four metal pins or screws 30.
【００２８】次に夫々のフレーム部材について説明す
る。上部フレーム２１は、中間に平行の２本のモジュー
ル支持棒２６を有する断面角棒状の枠部材にて方形枠２
１０を形成するとともに、該方形枠の４つの角隅部下面
に垂下される突設枠２８Ａは、押圧力付勢フレーム２５
の板バネ３２が前記電池１Ｃ、１Ｄ左右両面を緊締する
のに、適当な長さに設定する。又その角隅部には金属ピ
ン又はネジが貫通するピン孔２９を穿孔する。Next, each frame member will be described. The upper frame 21 is a rectangular frame 2 having a rectangular rod-shaped frame member having two parallel module support rods 26 in the middle.
The projecting frame 28 </ b> A that forms 10 and is hung on the lower surfaces of the four corners of the rectangular frame is a pressing force urging frame 25.
The leaf spring 32 is set to an appropriate length for tightening the left and right sides of the batteries 1C, 1D. In addition, a pin hole 29 through which a metal pin or a screw penetrates is formed in the corner portion.
【００２９】中間フレーム２３は、断面角棒状の枠部材
にてＨ形枠を形成するとともに、左右の部材には金属ピ
ンネジ３０が貫通するピン孔２９を穿孔する。下部フレ
ーム２２は、中間に平行の２本のモジュール支持棒２７
を有する断面角棒状の枠部材にて方形枠２２０を形成す
るとともに、前記方形枠２２０の２本のモジュール支持
棒２７で電池１Ｃ、１Ｄを支持するとともに、該方形枠
２２０の４つの角隅部上面に垂設される突設枠２８Ｂ
は、下側押圧力付勢フレーム２５の板バネ３２が前記電
池１Ｃ、１Ｄ左右両面を緊締するのに、適当な長さに設
定する点は、上部フレームと同様であるが、その角隅部
のピン孔２９は金属ピンネジ３０が螺着するするピン孔
２９を螺設する。The intermediate frame 23 has an H-shaped frame formed of a frame member having a square rod-shaped cross section, and has pin holes 29 through which the metal pin screws 30 penetrate, on the left and right members. The lower frame 22 includes two module support bars 27 parallel to each other in the middle.
The rectangular frame 220 is formed by a frame member having a square bar-shaped cross section, and the two module support bars 27 of the rectangular frame 220 support the batteries 1C and 1D, and the four corners of the rectangular frame 220 are supported. A projecting frame 28B hung vertically on the upper surface
Is similar to the upper frame in that the leaf spring 32 of the lower pressing force urging frame 25 is set to an appropriate length for tightening the left and right surfaces of the batteries 1C, 1D, but its corners are the same. The pin hole 29 is formed by screwing the pin hole 29 into which the metal pin screw 30 is screwed.
【００３０】押圧力付勢フレーム２５は、前記上部、下
部及びフレーム２１、２２を形成する樹脂材より柔らか
く、金属ピンネジ３０の締め付け力によって弾性変形可
能な金属若しくは樹脂材で方形枠状に形成するととも
に、その内周側に電池容器２内に内装した電極体３の積
層方向（垂直方向）にバネ力が付勢されるように板バネ
３２状の弾性部材を取り付ける。尚、前記フレーム２１
〜２５の長辺長さは、２つの電池１Ｃ、１Ｄの並置長さ
より僅かに大にし、板バネ３２が適当な付勢力で緊締可
能に構成する。The pressing force urging frame 25 is formed in a rectangular frame shape, which is softer than the resin material forming the upper and lower portions and the frames 21 and 22 and is elastically deformable by the tightening force of the metal pin screw 30. At the same time, an elastic member in the form of a leaf spring 32 is attached to the inner peripheral side thereof so that the spring force is biased in the stacking direction (vertical direction) of the electrode body 3 housed inside the battery container 2. The frame 21
The long side length of .about.25 is made slightly larger than the juxtaposed length of the two batteries 1C and 1D, and the leaf spring 32 can be tightened with an appropriate biasing force.
【００３１】かかる実施例によれば、先ず下面フレーム
２２上に２つの電池１Ｃ、１Ｄを並置し、次に下部押圧
力付勢フレーム２５の板バネ３２を利用して押圧力付勢
フレーム２５を電池１Ｃ、１Ｄに嵌設しながら緊締す
る。次に前記下部押圧力付勢フレーム２５の短辺上に夫
々中間フレーム２３を立設して、更にその上に上部押圧
力付勢フレーム２５の板バネ３２を利用して押圧力付勢
フレーム２５を電池１Ｃ、１Ｄに嵌設しながら緊締させ
た後、その上に上部フレーム２１を取り付ける。そして
最後に上部フレーム２１のピン孔２９より金属ピンネジ
３０を挿し込んで、下部フレーム２２のピンネジ孔２９
に螺着させながら押圧力付勢フレーム２５の枠体の弾性
力を利用して該フレーム２５を圧縮しながら緊締させ
る。According to this embodiment, the two batteries 1C and 1D are first juxtaposed on the lower frame 22, and then the leaf spring 32 of the lower pushing force pushing frame 25 is used to move the pushing force pushing frame 25. Tighten the batteries 1C and 1D while fitting them. Next, the intermediate frames 23 are erected on the short sides of the lower pressing force urging frame 25, respectively, and the leaf springs 32 of the upper pressing force urging frame 25 are used on the intermediate frames 23 to stand upright. After being tightened while being fitted in the batteries 1C and 1D, the upper frame 21 is attached thereon. Finally, by inserting the metal pin screw 30 through the pin hole 29 of the upper frame 21, the pin screw hole 29 of the lower frame 22 is inserted.
While being screwed on, the elastic force of the frame body of the pressing force urging frame 25 is utilized to compress and tighten the frame 25.
【００３２】かかる実施例によれば、前記プラスチック
フレーム２０の金属ピンネジ３０の固定によって水平に
並置した二次電池１Ｃ、１Ｄ同士を一体的に固定するこ
とが出来るとともに、押圧力付勢フレーム２５の弓形状
板バネ３２が、電池１Ｃ、１Ｄ左右両面間に弾性力を付
勢し且つ、金属ピン又はネジ３０の締め付け力によって
押圧力付勢フレーム２５の枠体が弾性変形して前記一体
的に固定した各電池モジュール１Ｃ、１Ｄに上下左右両
面より適正な弾性力を付勢して電池容器２の膨出阻止と
前記電極積層体３に所定の圧力を付勢して接触性を高
め、接触抵抗を低く抑える事が出来る。According to this embodiment, by fixing the metal pin screw 30 of the plastic frame 20, the horizontally arranged secondary batteries 1C and 1D can be integrally fixed together, and the pressing force urging frame 25 The bow-shaped leaf spring 32 urges an elastic force between the left and right surfaces of the batteries 1C, 1D, and the tightening force of the metal pin or the screw 30 elastically deforms the frame body of the pressing force urging frame 25 to integrally form the above. Proper elastic force is applied to each of the fixed battery modules 1C, 1D from the upper, lower, left, and right sides to prevent the battery container 2 from swelling and a predetermined pressure is applied to the electrode stack 3 to enhance the contact property and to make contact. The resistance can be kept low.
【００３３】尚、本実施例では、二次電池容器に内装さ
れる電極体が平板状電極の積層型であったが、該電極体
は捲回型であっても、電池容器が略方形であれば本実施
例と同様なモジュール電池の緊締と固定が可能である。In this embodiment, the electrode body incorporated in the secondary battery container was a laminated type of flat plate electrodes, but even if the electrode body is a wound type, the battery container has a substantially rectangular shape. If so, it is possible to tighten and fix the module battery as in the present embodiment.
【００３４】又、図１〜図３にはモジュール同士を一列
に並べる例を示したが、モジュール同士を４×１０、２
×２０等に並べる場合（図１の場合、左右にも別のモジ
ュールが隣接され、左右にも突起が出て接続される）も
本発明に含まれる。Although FIGS. 1 to 3 show an example in which the modules are arranged in a line, the modules are arranged at 4 × 10, 2
The present invention also includes the case of arranging in a × 20 format (in the case of FIG. 1, another module is adjacent to the left and right sides, and protrusions are also connected to the left and right sides).
【００３５】[0035]
【発明の効果】以上記載のごとく本第１発明によれば、
前記係合突起同士のスライド嵌合により二次電池モジュ
ール同士を左右上下に位置規制して一体的に組みたてる
ことが出来るとともに、押圧力付勢部材の弓形状板バネ
部が、電池モジュールの係合突起により相対するモジュ
ール両面間の偏平空間に弾性力を付勢して、前記一体的
に組みたてた各電池モジュールに上下両面より適正な弾
性力を付勢して、電池容器の膨出を阻止するとともに前
記電極積層体に所定の圧力を付勢して接触性を高め、接
触抵抗を低く抑える事が出来る。As described above, according to the first aspect of the present invention,
The secondary protrusions of the battery module can be integrally assembled by regulating the positions of the secondary battery modules vertically and horizontally by the sliding fitting of the engaging protrusions. The engaging projections apply an elastic force to the flat space between the opposite surfaces of the modules, and apply an appropriate elastic force to the battery modules that are integrally assembled from the upper and lower surfaces to expand the battery container. The contact resistance can be suppressed to a low level by preventing the discharge and enhancing the contact property by applying a predetermined pressure to the electrode laminate.
【００３６】又前記係合突起が矩形状突起と鍵型状突起
の組み合わせで構成することで、矩形状突起同士の接触
嵌合により電池モジュール左右（面内方向）方向の位置
規制が、又鍵型状突起同士の接触嵌合によりモジュール
左右（面内方向）と上下方向（面離間方向）の位置規制
ができ精度良く嵌合固定できる。更に前記押圧力付勢部
材、平板と平板の適宜位置に上側と下面側に***させた
バネ部材を構成することにより、相対する電池モジュー
ル面に均等に弾性力を付勢できる。Further, since the engaging projections are formed by combining the rectangular projections and the key-shaped projections, the rectangular projections are contact-fitted with each other so that the position of the battery module in the left-right direction (in-plane direction) is regulated. By contact-fitting the mold-like projections with each other, the positions of the module in the left-right direction (in-plane direction) and in the up-down direction (plane-separating direction) can be regulated, and fitting and fixing can be performed accurately. Further, by forming the pressing force urging member and the flat plate and the spring member bulging upward and downward at appropriate positions on the flat plate, the elastic force can be uniformly urged to the opposing battery module surfaces.
【００３７】又本発明を請求項５記載のように構成する
ことにより、独立した端子接続部が不要になるととも
に、モジュールの端子部が突設露出することなく、係合
突起により嵌合され、電池モジュールの底面と上面間の
閉ざされた偏平空間内に電気的接続部が位置するため
に、極めて安全である。By constructing the present invention as described in claim 5, an independent terminal connecting portion is not necessary, and the terminal portion of the module is fitted by the engaging projection without projecting and exposing. It is extremely safe because the electrical connections are located in a closed flat space between the bottom and top of the battery module.
【００３８】更に、本第２発明によれば、前記プラスチ
ックフレームの金属ピン若しくはネジの固定によって水
平に並置した二次電池モジュール同士を一体的に固定す
ることが出来るとともに、押圧力付勢フレーム枠の弓形
状板バネが、モジュール左右両面間に弾性力を付勢し且
つ、金属ピン若しくはネジ軸の締め付け力によって押圧
力付勢フレーム枠の枠体が弾性変形可能に変形して前記
一体的に固定した各電池モジュールに上下左右両面より
適正な弾性力を付勢して電池容器の膨出を弾性変形内に
とどめ塑性変形的な膨出阻止と前記電極積層体に所定の
圧力を付勢して接触性を高め、接触抵抗を低く抑える事
が出来る。Further, according to the second aspect of the present invention, the secondary battery modules which are horizontally juxtaposed can be integrally fixed by fixing the metal pins or screws of the plastic frame, and the pressing force urging frame frame is also provided. The bow-shaped leaf spring urges the elastic force between the right and left sides of the module, and the frame body of the pressing force urging frame is elastically deformable by the tightening force of the metal pin or the screw shaft, and the above-mentioned integrated Appropriate elastic force is applied to each fixed battery module from the upper, lower, left, and right sides to keep the bulging of the battery container within the elastic deformation and prevent plastically bulging and apply a predetermined pressure to the electrode stack. The contact resistance can be improved and the contact resistance can be kept low.
【図１】 本発明の第１実施形態に係る二次電池モジュ
ールの組立構造を示す断面図である。FIG. 1 is a sectional view showing an assembly structure of a secondary battery module according to a first embodiment of the present invention.
【図２】 本発明の第２実施形態に係る二次電池モジュ
ールの組立構造を示す概略断面図で、押圧力付勢体に接
続端子機能を持たせている。FIG. 2 is a schematic cross-sectional view showing an assembly structure of a secondary battery module according to a second embodiment of the present invention, in which a pressing force urging body has a connection terminal function.
【図３】 図１及び図２に使用される電池モジュールを
示す斜視図である。FIG. 3 is a perspective view showing a battery module used in FIGS. 1 and 2.
【図４】 図１に使用される押圧力付勢体を示す斜視図
である。FIG. 4 is a perspective view showing a pressing force urging body used in FIG.
【図５】 図２に使用される押圧力付勢体を示す斜視図
である。5 is a perspective view showing a pressing force urging body used in FIG. 2. FIG.
【図６】 本発明の第３実施形態に係る二次電池モジュ
ールの組立構造を示す断面図で、電池モジュールの固定
にプラスチックフレームを用いている。FIG. 6 is a sectional view showing an assembly structure of a secondary battery module according to a third embodiment of the present invention, in which a plastic frame is used to fix the battery module.
【図７】 図６のプラスチックフレームと押圧力付勢体
の斜視図である。7 is a perspective view of the plastic frame and the pressing force urging body of FIG. 6. FIG.
１Ａ、１Ｂ、１Ｃ、１Ｄ 二次電池モジュール ２ 二次電池 ２ａ 電池容器 ３ 電極体 ３Ａ 板状正極材 ３Ｂ 板状負極材 ３Ｃ、４セパレータ １０Ａ、１０Ｂ 係合突起 １１Ａ、１１Ｂ 鍵型突起 １２Ａ、１２Ｂ 垂直突起 １３ 偏平空間 １５ 押圧力付勢部材 １７、１７Ａ、１７Ｂ、１７Ｃ 板バネ部材 ５、０５ 端子部 ２０ プラスチックフレーム枠 ２１ 上部フレーム ２２ 下部フレーム ２３ 中間フレーム ２５ 押圧力付勢フレーム部材 ３０ 金属ピンネジ ３２ 板バネ 1A, 1B, 1C, 1D secondary battery module 2 Secondary battery 2a Battery container 3 electrode body 3A plate-shaped positive electrode material 3B Plate negative electrode material 3C, 4 separator 10A, 10B Engagement protrusion 11A, 11B key-shaped protrusion 12A, 12B Vertical protrusion 13 Flat space 15 Pressing force urging member 17, 17A, 17B, 17C Leaf spring member 5,05 terminal part 20 plastic frame 21 Upper frame 22 Lower frame 23 Middle frame 25 Pressing force urging frame member 30 metal pin screws 32 leaf spring
───────────────────────────────────────────────────── フロントページの続き (72)発明者 後藤 満文 長崎市深堀町五丁目717番１号 三菱重工 業株式会社長崎研究所内 (72)発明者 橋本 勉 長崎市深堀町五丁目717番１号 三菱重工 業株式会社長崎研究所内 (72)発明者 田島 英彦 長崎市飽の浦町１番１号 三菱重工業株式 会社長崎造船所内 Ｆターム(参考） 5H022 AA19 BB03 CC09 EE09 5H040 AA14 AA19 AS01 AS04 AT06 AY06 CC15 CC25 CC26 DD04 DD13 DD23 JJ03 LL01 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Mitsufumi Goto 5-717-1, Fukahori-cho, Nagasaki-shi Mitsubishi Heavy Industries Business Nagasaki Institute (72) Inventor Tsutomu Hashimoto 5-717-1, Fukahori-cho, Nagasaki-shi Mitsubishi Heavy Industries Business Nagasaki Institute (72) Inventor Hidehiko Tajima 1-1 Nagano-shi Atsunoura-cho Mitsubishi Heavy Industries Ltd. Company Nagasaki Shipyard F-term (reference) 5H022 AA19 BB03 CC09 EE09 5H040 AA14 AA19 AS01 AS04 AT06 AY06 CC15 CC25 CC26 DD04 DD13 DD23 JJ03 LL01
Claims (8)
材と、板状負極材との間にセパレータを挟み積層した電
極体をセパレータを介して複数配置し、電解液とともに
密封してなる略角形二次電池を複数組組み合わせた二次
電池モジュールであって、該略角形二次電池モジュール
の相対する左右又は／及び上下両面に、夫々一対の係合
突起を設け、該係合突起を他のモジュールの係合突起に
嵌合させて、両モジュール同士で上下と左右の位置規制
が行われて固定されることを特徴とする二次電池モジュ
ール組立体。1. A plurality of electrode bodies in which a separator is sandwiched between a plate-shaped positive electrode material and a plate-shaped negative electrode material are arranged inside a substantially rectangular battery container with a separator interposed therebetween and sealed together with an electrolytic solution. A secondary battery module in which a plurality of substantially rectangular secondary batteries are combined, and a pair of engaging protrusions is provided on each of right and left and / or upper and lower surfaces of the substantially rectangular secondary battery module, the engaging protrusions having a pair of engaging protrusions. A secondary battery module assembly, wherein the protrusion is fitted to an engaging protrusion of another module, and the upper and lower and left and right positions of both modules are regulated and fixed.
の組み合わせであることを特徴とする請求項１記載の二
次電池モジュール組立体。2. The secondary battery module assembly according to claim 1, wherein the engagement protrusion is a combination of a rectangular protrusion and a key-shaped protrusion.
次電池モジュールの対面する二面間に、前記係合突起の
高さに対応する、偏平空間を形成するとともに、該偏平
空間に押圧力付勢部材を介装したことを特徴とする請求
項１記載の二次電池モジュール組立体。3. A flat space corresponding to the height of the engaging projection is formed between two facing surfaces of the pair of secondary battery modules fixed by the engaging projection, and the flat space is pushed into the flat space. The secondary battery module assembly according to claim 1, wherein a pressure urging member is interposed.
適宜位置に上側と下面側に***させたバネ部材であるこ
とを特徴とする請求項３記載の二次電池モジュール組立
体。4. The secondary battery module assembly according to claim 3, wherein the pressing force urging member is a flat plate and a spring member that is bulged upward and downward at appropriate positions of the flat plate.
両面の押圧力付勢部材と接触する部位に内部の電極と接
続させた端子板を露出させ、該端子板を押圧力付勢部材
に対面する位置に設けた端子接続部と接触可能に構成し
たことを特徴とする請求項３記載の二次電池モジュール
組立体。5. A terminal plate connected to an internal electrode is exposed at a portion of the opposite sides of the battery module that contacts the pressing force urging member by the engaging projections, and the terminal plate faces the pressing force urging member. The secondary battery module assembly according to claim 3, wherein the secondary battery module assembly is configured so as to be capable of contacting a terminal connecting portion provided at a position.
材と、板状負極材との間にセパレータを挟み積層した電
極体を配置し、電解液とともに密封してなる略角形二次
電池と、 前記電池を複数個上下に積層するか若しくは左右に並置
した状態で、該電池群を位置固定するフレーム枠とを有
し、 前記フレーム枠が分割された分割フレーム部材であっ
て、前記電池群を位置固定する際に締め付けネジにより
一体化させるフレーム枠であることを特徴とする二次電
池モジュール。6. A substantially rectangular battery obtained by arranging a laminated positive electrode material and a negative electrode material with a separator sandwiched between a plate-shaped positive electrode material and a plate-shaped negative electrode material inside a battery container having a substantially rectangular shape, and hermetically sealing together with an electrolytic solution. A divided frame member having a secondary battery and a frame frame for fixing the battery group in a position in which a plurality of the batteries are vertically stacked or arranged side by side, wherein the frame frame is divided, A secondary battery module, which is a frame frame that is integrated by tightening screws when fixing the position of the battery group.
ーム部材が前記分割フレーム部材の間に介装したことを
特徴とする請求項６記載の二次電池モジュール。7. The secondary battery module according to claim 6, wherein an urging frame member for urging a pressing force to the battery group is interposed between the divided frame members.
に押圧力付勢部材が配設されている構成、若しくは前記
付勢フレーム枠自体が締め付けネジによる締め付け力に
より弾性変形可能な構成、若しくは両者を組み合わせて
構成されている請求項６記載の二次電池モジュール。8. A structure in which a pressing force urging member is disposed on a side of the urging frame frame facing the battery, or a structure in which the urging frame frame itself is elastically deformable by a tightening force by a tightening screw, Alternatively, the secondary battery module according to claim 6, which is configured by combining both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001339144A JP2003142052A (en) | 2001-11-05 | 2001-11-05 | Secondary battery module and secondary battery module assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001339144A JP2003142052A (en) | 2001-11-05 | 2001-11-05 | Secondary battery module and secondary battery module assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003142052A true JP2003142052A (en) | 2003-05-16 |
Family
ID=19153538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001339144A Pending JP2003142052A (en) | 2001-11-05 | 2001-11-05 | Secondary battery module and secondary battery module assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003142052A (en) |
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