201115808 六、發明說明： 【發明所屬之技術領域】 本發明有關於積層複數個單位電池，並以膜狀外包裝材料 封口之電池模組。 【先前技術】 隨著近年來之電子機器，特別是行動電話、筆記型個人電 腦、數位相機等之攜帶用資訊機器之發達和普及，而利用有 小型、重量輕、而且高能量密度之二次電池。 在大能量密度之二次電池中，使用有以膜狀外包裝材料代 替至目前之金屬製外包裝材料進行封口之電池。 以膜狀外包裝材料封口之電池因為每單位容積或重量之 能量效率變大，所以適於使用在電動工具、電動腳踏車、電 動汽車之電源用途之需要大電流之用途。另外，所具有之特 徵是可以容易製作積層複數個單位電池並電性連接之電池 模組或組電池。 圖5是立體圖，用來說明以膜狀外包裝材料封口之電池。 如圖5所示，積層正極電極和負極電極使其間包爽有分隔 片，與電解質一起由膜狀外包裝材料進行封口，並將正極舌 片21、負極舌片22引出到外部，使膜狀外包裝材料熱熔著， 而在電池元件之周圍形成熱熔著部23作為單位電池20。 以膜狀外包裝材料封口之單位電池20當過充電等之異常 時，在鋰離子二次電池等之二次電池，由於在電池内部產生 098135048 3 201115808 之氣體之壓力而造成膜狀外包裝材料之膨脹。另外’在積層 複數之單位電池並進行連接之電池模組中’當發生異常之情 況時’會有電池模組進行變形等之問題。 為了使在單位電池内部產生之氣體容易釋放’提案有經由 在收納單位電池之外殼内面設置銳利之突起部，用來破壞膜 狀外包裝材料之提案。例如，參照專利文獻1。 另外，提案有在收納電池模組之外殼設置具有通孔之突起 物’使所產生之氣體經由通孔而從膜狀外包裝材料之内部朝 向外殼外部釋放。例如，參照專利文獻2。 [先前技術文獻] [專利文獻] [專利文獻1]曰本專利特開平1〇 —208720號公報 [專利文獻2]曰本專利特開2〇〇3— 16841〇號公報 【發明内容】 (發明所欲解決之問題） 在積層複數個以膜狀外包裝材料封口之單位電池，由串 聯、並聯、串並聯地電性連接之組電池構成之電池模組中， 在封裝外殼内面設置突起部之方法巾，#單位電池膨服之情 况時’具有絲使崎外包裝材料確實地破斷之突起部之電 池’只限於_突起部者，或突起形狀到達範圍之單位電 池。因此，只有突起部到達範圍之單位電池之壓力被釋放， 其他單位電絲續膨脹’要消除由於膨脹使電池模組變形之 098135048 201115808 可能性會有困難 另外，在電池模組内部之各個單位電池之壓力未被釋 造成單位電池繼續膨脹之情況時， 觸而發生短路 於賤^脹之電池使電池模 組之框體變形，會有正極或負極舌片間互相接 之可能性。 。。本發明之課題是提供電池模組，明狀外包裝材料封口之 早位電池即使在由於内部壓力 升而變形之情況時，正極 舌片和負極舌片亦不會發生電性接觸。 (解決問題之手段） 為了解決上述之課題，本發明之電池模組 以膜狀外包裝材料將電池元件封口而成之單位電池，在電性 並聯或者串並聯連接之組電池長度方向之中央部配置 至>、為一個帶狀之環狀框體之電池模組。 上述電池模組其正極侧輸入輸出線連接到接合在組電池 極連接舌片’負極側輪人輸出線連接到 電池之負極端部舌片之負極連接舌片，而電池電壓 檢測線與位於組電池兩端部之正極連接舌片、負極連接舌片 之任一方和接合於各個單位電池之正極舌片和負極舌片之 接合部之+間連接W連接並被取出。 上述電池模組中，上述電池電壓檢測線連接於形成有複數 個電性獨立地設置在絕緣板上之熔線之晶片 熔線上並被取 出 098135048 201115808 上述電池模組其上述單位電池之正極活性物質為鋰錳複 合氧化物。 上述電池模組其上述帶狀之環狀框體由合成樹脂材料或 金屬材料構成，或者由合成樹脂材料及金屬材料兩者構成。 上述電池模組在上述組電池之積層面之上表面和下表面 具有絕緣樹脂板，而在側面貼著有絕緣性黏著帶。 (發明效果） 依照本發明時’當構成電池模組之組電池之單位電池膨用 時因為裝著有在積層方向按壓組電池之帶狀之環狀框體 :以在過充電等之異常時’即使在以膜狀外包裝材料封口 3 單位電池内之壓力有上升之情況時，因為積層方向之膨動 所以將單位電池封口之膜狀外包裝材料之熱炫著部 =㈣外包糾料之壓力釋放閥、或形成在膜狀外包暴 厂’’易破斷部不能承受内部壓力之增大而破斷 内部之壓力釋放。 以tr是由於電池模組内部之組電池不會大幅地膨脹，片 ^因組電池之膨脹岐電池模組之框體變形，因血 電池舌片間互相接觸而短路之可能性。 之=框在:!1中:在組電池之積層方向安裝按壓谓 體亦使用^料需要大幅變更，同時電池模組之相 先則技術所使用者就可以實現。 098135048 另外’對於電池模組’不需要在域核施加對組電池之 6 201115808 膨脹具有強度之特別對策。 【實施方式】 下面參照圖式用來說明本發明。 圖1是分解立體圖，用來說明本發明之電池模組之一實施 態樣。 電池模組1具有將複數單位電池20積層在電池模組之框 體11a、lib内之組電池4。電池模組之框體11a、lib可以 使用聚碳酸S旨、ABS樹脂等之合成樹脂、銘、軟鋼、不錄鋼 等之金屬材料。電池模組之框體11a、lib係利用螺絲12 互相結合。 當構成框體之構件係使用合成樹脂材料之情況時，可以防 止已施加電壓之部分與框體接觸時之短路。另外一方面，在 需要良好散熱特性和框體之強度時，最好使用金屬材料。 該實例所示之電池模組1係串聯連接6個單位電池20而 形成組電池4。單位電池之形狀、連接個數、電性連接方法 可以依照使用目的適當地變更。 組電池4利用雙面黏著帶接著以聚碳酸酯等之合成樹脂 材料所成形之電池保護板7，將黏著帶8、9貼著在側面周 ' 圍而進行組電池4之絕緣和固定。 其次，將組電池4放入到帶狀之環狀框體2之框内，在組 電池長度方向之中央部配置帶狀之環狀框體2，將其收納在 框體11a、lib成為電池模組1。 098135048 7 201115808 環狀框體玎以使用有由鎳材料或不銹鋼材料等所成形之 金屬環狀體者，或利用電阻熔接、雷射熔接、超音波熔接等 之熔接將金屬帶材料連接成為環狀者，或利用尼龍、聚乙 烯、聚丙烯、氟樹脂等之合成樹脂材料所成形者。另外，經 由預先成形之帶狀環狀框體2之角部2a，可以使其易於裝 著到組電池。 另外，環狀框體不一疋要雄、著在組電池’只要在纟且電池有 稍微膨脹時成為密著狀態，具有可以抑制進一步之膨脹之作 用者即可。 另外，在電池模組1設有組電池4之正極側輸入輸出線 5 4，上述組電池4之負極側輸入輸出線5 5，和用以監視各 個單位電池電壓之已引出之電池電壓檢測線60。 在正極側輸入輸出線54設有短路時保護用之電流熔線 57，在電池電壓檢測線60連接有電壓檢測線防止短路用之 晶片炼線61。 依照此種方式，經由使用在絕緣板上形成電性獨立之複數 個熔線62，而使複數電壓檢測線之電性連接變為容易，可 以在短時間内確實地進行組建。 另外，在框體設有用來與使用電池模組之機器、或組電池 等連接之輸人輸出線外部連接器59、和電池€>1檢測線外 部連接器66。 圖2為用來說明本發明之電域組之電性佈線之一實施 098135048 8 201115808 態樣之圖。 在圖2所示之訾 成組電池4。 將6個單位電池2〇串聯連接而構 連接從位於、纟且齋、丄 -Ρ -，r；tA電池4積層體一端之單位電池之正極所引 體另外娘别入輪出線54，和連接從位於上述組電池積層 體另外一端之嚴 55，M-… 負極所引出之負極侧輸入輸出線 \見兩入輪出線54經由電流熔線57連接到輸輸 出線外部連接器59,而連接到電池保護電路基板接J輸入輸 在另外—方面，衫位電池之各個正極 檢測線60,經由曰y Μ", 恢’軍池電Μ 由日日片熔線61之輸入側連接器61a連接到雷 性互相獨立之6個熔線62。 運接到電 連接到晶>}料61之輸出侧連接器_ 壓檢測線64成為連接到電池電壓檢測線外部連⑽也電 由連接器而連接到電池保護電路。 ，經 構成組電池之單位電池之串聯個數可以依照使 機器所需要之電壓、電流適當地設定。使用電池之機器，之 壓’代表性者有12V系統或24V系統，但是在鐘離子一=電 池之情況時，在12V系統最好串聯連接3〜4 人電201115808 VI. Description of the Invention: [Technical Field] The present invention relates to a battery module in which a plurality of unit cells are laminated and sealed with a film-like outer covering material. [Prior Art] With the development and popularization of electronic devices, in particular, mobile information devices such as mobile phones, notebook personal computers, and digital cameras, the use of small, lightweight, and high energy density battery. In a secondary battery having a large energy density, a battery in which a film-like outer packaging material is used in place of the current metal outer packaging material for sealing is used. Since the battery sealed with the film-shaped outer packaging material has an energy efficiency per unit volume or weight, it is suitable for use in a power source for electric tools, electric bicycles, and electric vehicles, which requires a large current. Further, it is characterized in that it is easy to manufacture a battery module or a battery pack in which a plurality of unit cells are laminated and electrically connected. Fig. 5 is a perspective view for explaining a battery sealed with a film-like outer covering material. As shown in FIG. 5, the positive electrode and the negative electrode are laminated to form a separator, and are sealed with a film-like outer packaging material together with the electrolyte, and the positive electrode tab 21 and the negative electrode tab 22 are taken out to the outside to form a film. The outer packaging material is thermally fused, and a heat-fusible portion 23 is formed as a unit cell 20 around the battery element. When the unit cell 20 sealed with the film-like outer packaging material is abnormal in overcharge or the like, in a secondary battery such as a lithium ion secondary battery, a film-like outer packaging material is generated due to a pressure of a gas of 098135048 3 201115808 generated inside the battery. The expansion. Further, in the battery module in which a plurality of unit cells are connected and connected, when there is an abnormality, there is a problem that the battery module is deformed. In order to make the gas generated inside the unit cell easy to release, it is proposed to provide a film-like outer packaging material by providing a sharp projection on the inner surface of the casing of the unit battery. For example, refer to Patent Document 1. Further, it has been proposed to provide a projection having a through hole in a casing accommodating the battery module, and the generated gas is released from the inside of the film-like outer packaging material to the outside of the casing through the through hole. For example, refer to Patent Document 2. [PRIOR ART DOCUMENT] [Patent Document 1] [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei. No. 208720 (Patent Document 2) Japanese Patent Laid-Open Publication No. Hei No. Hei. The problem to be solved is: in a battery unit in which a plurality of unit cells sealed with a film-shaped outer packaging material are sealed, and a battery module composed of a battery group electrically connected in series, in parallel, and in series and in parallel, a projection portion is provided on the inner surface of the package outer casing. In the case of the method of exposing the unit cell, the battery having the protrusion of the wire which causes the outer packaging material to be reliably broken is limited to the protrusion portion or the unit cell whose protrusion shape reaches the range. Therefore, only the pressure of the unit cell in which the protrusion reaches the range is released, and the other unit wires continue to expand. It is difficult to eliminate the possibility of deforming the battery module due to the expansion of the 098135048 201115808. In addition, each unit battery inside the battery module When the pressure is not released and the unit battery continues to expand, the short-circuited battery is deformed to deform the frame of the battery module, and there is a possibility that the positive electrode or the negative electrode tab are connected to each other. . . SUMMARY OF THE INVENTION An object of the present invention is to provide a battery module in which an early battery of a sealed outer packaging material is not electrically contacted even when it is deformed due to an internal pressure rise. (Means for Solving the Problem) In order to solve the above problems, the battery module of the present invention is a unit battery in which a battery element is sealed by a film-like outer packaging material, and is centrally connected in a longitudinal direction of a battery in parallel or in series and in parallel. Configured to >, a battery module with a strip-shaped ring frame. The positive electrode side input/output line of the above battery module is connected to a negative electrode connecting tongue which is connected to the negative electrode side output tongue of the battery electrode connecting tongue piece and connected to the negative electrode end tongue of the battery, and the battery voltage detecting line and the group are located in the group The + connection between the positive connection tab and the negative connection tab of the both ends of the battery and the junction of the positive tab and the negative tab of each unit cell are connected and taken out. In the above battery module, the battery voltage detecting line is connected to a wafer fuse formed with a plurality of fuses electrically disposed independently on the insulating plate, and is taken out of 098135048 201115808. The battery module has the positive electrode active material of the unit battery. It is a lithium manganese composite oxide. In the above battery module, the strip-shaped annular frame body is made of a synthetic resin material or a metal material, or a synthetic resin material and a metal material. The battery module has an insulating resin plate on the upper surface and the lower surface of the laminated layer of the assembled battery, and an insulating adhesive tape is attached to the side surface. (Effect of the Invention) According to the present invention, when the unit battery constituting the battery pack of the battery module is used, the belt-shaped annular frame that presses the assembled battery in the stacking direction is mounted: in case of abnormality such as overcharge 'When the pressure in the unit cell is sealed by the film-like outer packaging material 3, the heat-shrinking portion of the film-like outer packaging material sealed by the unit battery is due to the swelling of the lamination direction = (4) Outsourcing The pressure relief valve, or the rupture of the membrane-like outburst factory, cannot withstand the increase in internal pressure and break the internal pressure release. The tr is because the battery pack inside the battery module does not expand greatly, and the film is deformed due to the expansion of the battery pack, and the frame of the battery module is deformed, and the possibility that the blood battery tongues are in contact with each other is short-circuited. The = frame is in: !1: The pressing of the pressing body in the stacking direction of the battery pack also requires a large change, and the battery module can be realized by the user of the technology. 098135048 In addition, there is no need to apply a special countermeasure to the battery module for the strength of the expansion of the battery pack. [Embodiment] The present invention will be described below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view for explaining an embodiment of a battery module of the present invention. The battery module 1 has a battery pack 4 in which a plurality of unit cells 20 are laminated in the casings 11a and 11b of the battery module. The frame 11a and lib of the battery module can be made of a synthetic resin such as polycarbonate, ABS resin, or the like, or a metal material such as mild steel or non-recorded steel. The casings 11a and 11b of the battery module are coupled to each other by screws 12. When the member constituting the frame is made of a synthetic resin material, it is possible to prevent a short circuit when the portion to which the voltage has been applied comes into contact with the frame. On the other hand, it is preferable to use a metal material when good heat dissipation characteristics and strength of the frame are required. The battery module 1 shown in this example is connected in series to six unit cells 20 to form a battery unit 4. The shape of the unit battery, the number of connections, and the electrical connection method can be appropriately changed according to the purpose of use. The assembled battery 4 is insulated and fixed by the battery pack 4 by a double-sided adhesive tape and then a battery protective sheet 7 formed of a synthetic resin material such as polycarbonate, and the adhesive tapes 8 and 9 are attached to the side surface circumference. Next, the assembled battery 4 is placed in the frame of the band-shaped annular frame 2, and a band-shaped annular frame 2 is placed in the center portion of the assembled battery in the longitudinal direction, and is housed in the casing 11a and lib to be a battery. Module 1. 098135048 7 201115808 The ring frame body is connected by a metal ring formed of a nickel material or a stainless steel material, or by a fusion of a resistance welding, a laser welding, an ultrasonic welding, or the like. Or a synthetic resin material such as nylon, polyethylene, polypropylene, or fluororesin is used. Further, the corner portion 2a of the band-shaped annular frame 2 which is formed in advance can be easily attached to the assembled battery. In addition, the ring-shaped frame is not required to be worn, and the battery pack is in a closed state as long as the battery is slightly expanded, and it is sufficient to prevent further expansion. In addition, the battery module 1 is provided with a positive side input/output line 5 4 of the assembled battery 4, a negative side input/output line 5 5 of the assembled battery 4, and a battery voltage detecting line for monitoring the respective unit battery voltages. 60. The positive-electrode-side input/output line 54 is provided with a current fuse 57 for protection during short-circuiting, and a wafer line 61 for connecting a voltage detecting line to prevent short-circuiting is connected to the battery voltage detecting line 60. In this manner, it is easy to electrically connect the plurality of voltage detecting lines by forming a plurality of electrically-insulated fuses 62 on the insulating plate, and the assembly can be surely performed in a short time. Further, the casing is provided with an input line external connector 59 for connecting to a machine using a battery module or a battery pack, and a battery port > 1 detection line external connector 66. Fig. 2 is a view showing an embodiment of an electrical wiring of the electric domain group of the present invention, which is implemented in the manner of 098135048 8 201115808. In the group shown in Fig. 2, the battery 4 is assembled. 6 unit cells are connected in series to connect the positive electrode of the unit cell located at one end of the stacking body of the A, 丄-Ρ-, r; tA battery 4, and the other mother enters the round line 54, and Connecting the negative side input/output line drawn from the other end of the above-mentioned battery stack body, 55, M-... negative electrode, see the two input round line 54 connected to the output line external connector 59 via the current fuse 57, and Connected to the battery protection circuit board, J input and input, in addition, the positive electrode detection line 60 of the battery of the battery, via the 曰y Μ", restores the military battery, the input side connector 61a of the solar fuse 61 Connected to 6 fuses 62 that are independent of each other. The output side connector _ the voltage detecting line 64 becomes connected to the battery voltage detecting line external connection (10) and is also connected to the battery protection circuit by the connector. The number of series connected to the unit cells constituting the assembled battery can be appropriately set in accordance with the voltage and current required for the device. For a battery-operated machine, the representative unit has a 12V system or a 24V system, but in the case of a clock ion=battery, it is preferable to connect 3 to 4 people in series in a 12V system.
最好串聯連接6〜8個。另外，經由變化串聯連接之個數:、‘、、 因應以36V、42V等為首之各種電壓。 ° M 圖3是用來說明本發明之電池模組之另— I施態樣之 圖，成為用來說明將框體拆除後之電池模組之圖。 098135048 9 201115808 在圖1所示之電池模組中 .^ Λ 、且電池4於電池長度方向之 中央。卩設置1個帶狀之環狀框 .^ 聪2，與此相對地在圖3所示 者’係在中央部設有間隔地配置2個。 電、、也中此種方4在經由配置2個帶狀之環狀框體成為大組 $ Λ㈣由於電池内部壓力之膨脹所造成之變形， f狀之環狀框體之數拍 目並不，、限於2個，亦可以依照電池之 大小配置任意個數。 另外’在以上之說财所說明之實例是將環狀框體配置在 °°電池長度方向之中央部，經由配置在由於内部壓力增大 而受到大㈣敎長度方向之巾央部，可以有效地防止電池 模組之變形。 圖4疋立體圖，用來說明組電池之組建步驟d 使利用膜狀外包I材料封口之單位電池21積層既定之個 數，在連接正極舌片22、負極舌片23之後，在正極舌片、 負極舌片之上下配置橡膠海棉等之具有彈性之絕緣性分隔 片5 ° 其次，在連接有單位電池21之組電池4之上下，利用雙 面黏著帶接著由聚碳酸酯等之絕緣樹脂材料所成形之電池 保護板7，在側面周圍貼著黏著帶8、9而進行組電池之絕 緣和固定。 圖5是分解立體圖，用來說明組電池之電性連接。 圖5是用來說明使利用膜狀外包裝材料封口之單位電池 098135048 10 201115808 21積層既定之個數並串聯連接之情況之圖，成為表示從上 層起之第1層和第2層之2個，和最下層之1個，而其中間 則被省略之圖。 在最上層之單位電池20a之正極舌片21a接合有正極連接 舌片71，在正極連接舌片71連接有正極側輸入輸出線54 和電池電壓檢測線60。 另外一方面，在最上層之單位電池20a之負極舌片22a 和第2層之正極舌片22b之間，配置有中間連接舌片73而 使三者接合成為一體。另外，在中間連接舌片連接有電池電 壓檢測線60。 另外，在位於最下層之單位電池20f之負極舌片22f接合 有負極連接舌片72,在負極連接舌片72連接有負極側輸入 輸出線。 依照此種方式，連接正極侧輸入輸出線54和電池電壓檢 測線60。 另外一方面，在最上層之單位電池20a之負極舌片22a 和第2層之正極舌片22b之間，配置有中間連接舌片73而 使三者接合成為一體。另外，在中間連接舌片連接有電池電 壓檢測線60。 另外，在位於最下層之單位電池20f之負極舌片22f接合 有負極連接舌片72,在負極連接舌片72連接有負極_輸入 輸出線55。 098135048 11 201115808 依照此種方式，最好不利用焊接連接正極側輸入輸出線 54、負極侧輸入輸出線55、單位電池之正極舌片、負極舌 片，而在分別利用焊接將正極側輸入輸出線54和電池電壓 檢測線60連接到正極連接舌片71，和將負極側輸入輸出線 55連接到負極連接舌片72之後，利用電阻溶接使正極連接 舌片71和正極舌片接合，同樣地利用電阻熔接使負極連接 舌片接合在貞極舌片’然後在利㈣先焊接而使其他之電池 電壓檢測線60連接在中間連接舌片73之後，配置在使正極 舌片和負極舌ϋ接合之位置，並利用電阻雜進行中間連接 舌片和正極舌片、負極舌片之熔接。 依照此種方式，可以防止在湘焊接連接正極連接舌片 7卜負極連接舌片72、巾間連接舌# 73之後，由於利用溶 接連接正極舌片或負極舌片之焊接熱對電池造成不良之影 響。 〜 圖6是立體圖，用來說明利用膜狀外包裝材料封口之單位 電池之一實施態樣。 利用膜狀外包|材料封σ之單位電池之製造，是經由積層 正極電極、貞極電極、分則，制賴狀外包裝材料將充 填有電解液之電池元件封口而製成。 在本實例中單位電池2〇是正極舌片21和負極舌片22 從單位電池之同—稜邊引出，以膜狀外包裝材料封σ之單位 電池20在周圍形成膜狀外包裝材料之熱熔著部23而進行封 098135048 12 201115808 Ο 〇 正極舌片和負極舌片並不σ „ 不'、限於上述方式之從同一稜邊 引出者，亦可以成為從面對邊引出者。 作為單位電池，其正極之劁 裂作了以將經由使鋰過渡金屬複 合氧化物之粒子和碳里蓉夕g 士 寺之具有導電性碳質材料一起與結 著劑分散所形成之„，塗佈在由㈣構成之集電體上。 鋰過渡金屬複合氧化物可以使用錄複合氧化物。在使用 健複合氧化物之情況時，當與㈣賴複合氧化物之電池 比較’因為充電時之安錄較高，所以各解㈣池之保護 電路可以成為簡單者。因此可以使電池模組小型化。 鐘複合氧化物並不只限於包含有鐘和猛之氧化物，亦可 以成為包含有其他之元素之複合氧化物。 另外，負極之製作可以將經由摻雜、不摻雜鋰，將石墨、 無定形碳粉末、矽等一起和結著劑攪拌所獲得之膠漿，塗佈 在銅f自上。 作為膜狀外包裝材料’最好是在单位電池之内面配置熱熔 著性之聚乙烯膜’在外面配置強度較大之聚對苯二甲酸乙二 酯（polyethylene terephthalate)、聚醯胺（p〇iyamide)膜 等，在内面、外面之合成樹脂膜間配置|§箔，並使用積層之 可彎性之積層膜。 圖7是立體圖，用來說明以膜狀外包裂材料封口之單位電 池之另一實施態樣。 098135048 13 201115808 圖7所示之單位電池20在周緣部具有安全闊24,其在電 池内部壓力上升之情況時利用裂開而使壓力釋放。 配置安全閥24之部分最好設在正極舌片21和負極舌片 22間之端子間封口部25以外之周緣部，經由設在位於端子 間封口部之相反側之長度方向端部之封口部，可以使壓力增 大時對端子之影響減小，而可以快速地使壓力釋放。 安全閥24之形成可以經由使以比膜狀外包裝材料為低之 壓力而裂開之膜，熱熔著在設於膜狀外包裝材料之孔穴之部 分’或對膜狀外包裝材料進行切割而形成薄壁部等。 依照此種方式，經由設置以比膜狀外包裝材料之以熱熔著 構成之接合部為低之壓力而裂開之部分，同時在單位電池設 置環狀框體，於内部壓力增大時不會產生電池模組之變形， 可以安全地釋放壓力。 [實施例] 其次’以實施例說明本發明。 [實施例1] 以膜狀外包裝材料封口之單位電池之製作是使用錢酸裡 作為正極活性物質，石墨作為負極活性物質，和將乙❼匕溶 解在乙烯碳酸酯（EC)和碳酸二乙酯（DEC)之混合溶媒者作為 電解液，用來製作從同一稜邊引出正極舌片、負極舌片之縱 158mmx橫 82mmx厚 5. 6mm 者。 然後’對各個單位電池之正極舌片，以與負極舌片重疊之 098135048 201115808 方式，積層6個之單位電池，在單位電池之間配置縱16〇则^、 橫80mm、厚〇.5mm聚碳酸酯板，利用雙面黏著帶而接合。 其次，如圖2之佈線圖所示，在配置於一端之單位電池之 正極舌片’利用電阻熔接接合已焊接有連接至溶線之正極侧 輸入輸出線54和電池電壓檢測線6〇之正極侧連接舌片。另 外，在上述單位電池之負極舌片和鄰接之單位電池之正極舌 片之間，配置已焊接連接有電池電屢檢測線之中間連接舌 片，並利用電阻熔接接合成一體。 同樣地’在位於第二號至第六號單位電池之負極舌片和正 極舌片之間，配置已焊接連接有電池電壓檢測線之中間連接 舌片，並利用電阻熔接而連接。 在另外一端，亦即在位於第六號單位電池之負極舌片，利 用電阻熔接接合已焊接連接有負極側輸入輸出線之負極侧 連接舌片。 在正極舌片和負極舌片之上下，利用雙面黏著帶以各個舌 片不會洛出之方式接著由縱2〇mmx橫30mmx厚2mm之橡膠海 棉所構成之分隔片而使其絕緣。 另外，在組電池積層面之上表面、下表面，利用雙面黏著 ▼接著由縱160mm、橫82mm、高0. 5mm之聚碳酸醋所構成之 電池保護板，在組電池之侧面周圍貼著黏著帶，而進行組電 池之絕緣和固定。 所製成之組電池為縱16〇· 2mm、橫82. 1mm、厚36. 5mm。 098135048 15 201115808 在所獲得之組電池中，於長度方向之中央部，將寬度l〇mm X厚度0. 2mm之錄板使内侧尺寸為將橫84mm、縱38. 5mm之 四角形狀環狀體以30mm之間隔而配置於2個位置。 其次，收納在由聚碳酸酯所構成之框體，使電池電壓輸出 線之連接連接到晶片溶線之連接器，並且連接晶片熔線之 連接器和外部連接用連接器。另外’安裝正極侧輸入輸出 線、負極側輸入輸出線之連接器而成為電池模組。 [實施例2] 與實施例1同樣地製作組電池。在該組電池長度方向之中 央部，將寬度13麵X厚度0· 3匪之環狀之鎳材料加工成内側 尺寸為84nunx38· 5匪之帶狀之极狀框體而進行配置。然後， 收納在由聚碳酸酯構成之框體而成為電池模組。 [實施例3] 與實施例1同樣地製作組電池。在組電池長度方向之中央 部’以30_之間隔在2個位置配置射出成形寬度15匪、厚 度2匪、内側尺寸為84mmx38· 5mm之聚碳酸醋之帶狀之環狀 框體。然後，收納在由聚碳酸酯構成之框體而成為電池模組。 [比較例1] 與實施例1同樣地製作單位電池’收納在由聚碳酸醋構成 之框體而成為電池模組。 在實施例卜2、3和比較例之電池模組之正極側輸入輸出 線未插入有保§蔓電路’而直接通電44V、7A之電流進行過充 098135048 16 201115808 電試驗，在實施例卜2、3膜狀外包裝 破斷’絲體心，未發财妓絲之:熔著部進行 在比較例1單位電池膨脹，框體變形。乂，與此相對地， (產業上之可利用性） 本發明在構成電池模組之單位 電池膨脹時，因為在組電池長度方向之，體所構成之組 方向按壓組電池之帶狀之環狀框體，所叫^著有在積層 異常時，以臈狀外包襄材料封口/使在過充電等之 情況時’因為朝向積層方向，之 :=:Γ — =?=、或_狀外包㈣之易破斷部因不 增大而破斷，而使電池内部之壓力釋玫。 電池膨脹之強度。 糾之對相以增大對應單仇 【圖式簡單說明】 態=是分解立㈣，絲說明本發明之電池模組之一實施 佈線之一實施態樣 圖2為說明本發明之電池模組之電性 之圖。 圖池模組之另-實施態樣之圖 圖:立:圖’用來說明組電池之組建步驟。 圖解立體圖’用來說明組電池之電性連接。 098135048 201115808 圖6是立體圖，用來說明以膜狀外包裝材料封口之單位電 池之一實施態樣。 圖7是立體圖，用來說明以膜狀外包裝材料封口之單位電 池之另一實施態樣。 【主要元件符號說明】 1 電池模組 2 帶狀之環狀框體 2a 環狀框體之角部 4 組電池 5 絕緣性分隔片 7 電池保護板 8 ' 9 黏著帶 11a 、 lib 框體 12 螺絲 20 、 20a 、 20b 、 20f 、21 單位電池 21 ' 21a ' 22 ' 22b 正極舌片 22 、 22a 、 22f 、 23 負極舌片 23 熱熔著部 24 安全閥 25 端子間封口部 54 正極側輸入輸出線 55 負極側輸入輸出線 098135048 18 201115808 57 電流熔線 59 輸入輸出線外部連接器 60 電池電壓檢測線 61 晶片炫·線 61a 輸入侧連接器 61b 輸出侧連接器 62 熔線 64 輸出側電池電壓檢測線 66 電池電壓檢測線外部連接器 71 正極連接舌片 72 負極連接舌片 73 中間連接舌片 098135048 19It is best to connect 6 to 8 in series. In addition, the number of series connection is changed by: ‘,, and various voltages including 36V, 42V, and the like. Fig. 3 is a view for explaining another embodiment of the battery module of the present invention, and is a view for explaining a battery module after the frame is removed. 098135048 9 201115808 In the battery module shown in Figure 1, ^ Λ , and the battery 4 is in the center of the battery length direction. In the case of the one shown in Fig. 3, two of them are arranged at intervals in the center. In the case of electricity, the square 4 is formed by the arrangement of two strip-shaped annular frames, and the deformation of the internal pressure of the battery is caused by the expansion of the internal pressure of the battery. , limited to 2, can also be configured according to the size of the battery. In addition, the example described in the above section is that the annular frame body is disposed at the center portion of the battery in the longitudinal direction of the battery, and is disposed in the center of the towel body which is subjected to the large (four) length direction due to the increase of the internal pressure. To prevent deformation of the battery module. FIG. 4 is a perspective view for explaining the assembly step d of the assembled battery. The unit cell 21 sealed by the film-like outer covering material I is laminated in a predetermined number. After the positive electrode tab 22 and the negative electrode tab 23 are connected, the positive electrode tab is An elastic insulating separator such as rubber sponge is disposed above and below the negative electrode tab. Next, the insulating resin material such as polycarbonate is used under the battery 4 connected to the unit cell 21, and the double-sided adhesive tape is used. The formed battery protection plate 7 is insulated and fixed to the assembled battery by adhering the adhesive tapes 8, 9 around the side faces. Figure 5 is an exploded perspective view for explaining the electrical connection of the assembled batteries. FIG. 5 is a view for explaining a case where a predetermined number of unit cells 098135048 10 201115808 21 sealed by a film-shaped outer covering material are connected in series, and is shown as two layers of the first layer and the second layer from the upper layer. , and one of the lowest layers, while the middle is omitted. The positive electrode tab 21 is joined to the positive electrode tab 21a of the unit cell 20a of the uppermost layer, and the positive electrode side input/output line 54 and the battery voltage detecting line 60 are connected to the positive electrode connecting tab 71. On the other hand, between the negative electrode tab 22a of the unit cell 20a of the uppermost layer and the positive electrode tab 22b of the second layer, an intermediate connecting tongue 73 is disposed to integrally join the three. Further, a battery voltage detecting line 60 is connected to the intermediate connecting tongue. Further, a negative electrode tab 22 is joined to the negative electrode tab 22f of the unit cell 20f located at the lowermost layer, and a negative electrode side input/output line is connected to the negative electrode connecting tab 72. In this manner, the positive side input/output line 54 and the battery voltage detecting line 60 are connected. On the other hand, between the negative electrode tab 22a of the unit cell 20a of the uppermost layer and the positive electrode tab 22b of the second layer, an intermediate connecting tongue 73 is disposed to integrally join the three. Further, a battery voltage detecting line 60 is connected to the intermediate connecting tongue. Further, a negative electrode tab 72 is joined to the negative electrode tab 22f of the unit cell 20f located at the lowermost layer, and a negative electrode input/output line 55 is connected to the negative electrode connecting tab 72. 098135048 11 201115808 According to this method, it is preferable to connect the positive side input/output line 54, the negative side input/output line 55, the positive electrode tab of the unit battery, and the negative electrode tab without soldering, and the positive side input and output lines are respectively used by welding. 54 and the battery voltage detecting line 60 are connected to the positive electrode connecting tab 71, and after the negative electrode side input/output wire 55 is connected to the negative electrode connecting tab 72, the positive electrode connecting tab 71 and the positive electrode tab are joined by resistance welding, and the same is utilized. The resistance welding causes the negative connection tab to be engaged with the dipole tongue ' and then soldered to the other (4) to connect the other battery voltage detecting line 60 to the intermediate connecting tab 73, and is disposed to engage the positive tab and the negative tab. Position, and use the resistance miscellaneous to weld the intermediate connecting tongue and the positive tongue and the negative tongue. According to this manner, it is possible to prevent the welding of the positive electrode connecting tabs 7 and the negative connecting tabs 72 and the inter-towel connecting tongues #73 after the welding, and the welding heat of the positive or negative tongues by the fusion bonding is bad for the battery. influences. ~ Fig. 6 is a perspective view for explaining an embodiment of a unit battery sealed with a film-like outer covering material. The production of a unit battery using a film-like outer package and a material seal σ is produced by sealing a battery element filled with an electrolytic solution by laminating a positive electrode, a drain electrode, and a step-by-step outer packaging material. In the present example, the unit cell 2 is the positive electrode tab 21 and the negative electrode tab 22 are drawn from the same edge of the unit cell, and the unit cell 20 sealed with the film-like outer packaging material forms a heat of the film-like outer packaging material around. The melting portion 23 is sealed and the welcoming portion of the positive and negative tongues is not σ „NO”, and is limited to the above-mentioned manner, and may be taken from the facing edge. The cleaving of the positive electrode is formed by dispersing the particles of the lithium transition metal composite oxide and the conductive carbonaceous material of the carbon sylvestre with the binder. (4) On the current collector formed. As the lithium transition metal composite oxide, a composite oxide can be used. In the case of using a composite oxide, when the battery is compared with the battery of the (4) composite oxide, the protection circuit of each solution can be made simple because the recording is higher when charging. Therefore, the battery module can be miniaturized. The bell composite oxide is not limited to the inclusion of a bell and an oxide, and may be a composite oxide containing other elements. Further, in the production of the negative electrode, a paste obtained by stirring graphite, amorphous carbon powder, ruthenium or the like together with a binder may be applied to the copper f by doping or undoping lithium. As the film-like outer packaging material, it is preferable to dispose a polyethylene film having a heat-fusible property on the inner surface of the unit cell, and to provide a polyethylene terephthalate or a polyamide having a large strength on the outside. 〇iyamide) film, etc., is disposed between the inner surface and the outer synthetic resin film, § foil, and a laminated film of a bendable property is used. Fig. 7 is a perspective view for explaining another embodiment of a unit battery sealed with a film-like overclad material. 098135048 13 201115808 The unit cell 20 shown in Fig. 7 has a safety margin 24 at the peripheral portion thereof, and the pressure is released by cracking when the internal pressure of the battery rises. It is preferable that the portion of the safety valve 24 is provided at a peripheral portion other than the inter-terminal sealing portion 25 between the positive electrode tab 21 and the negative electrode tab 22, and is provided through a sealing portion provided at a longitudinal end portion on the opposite side of the sealing portion between the terminals. The pressure on the terminal can be reduced when the pressure is increased, and the pressure can be quickly released. The safety valve 24 can be formed by thermally thawing a portion of the film provided in the film-like outer packaging material by cutting the film at a lower pressure than the film-like outer packaging material or cutting the film-shaped outer packaging material. A thin wall portion or the like is formed. According to this aspect, the portion which is ruptured at a lower pressure than the joint portion which is formed by the heat fusion of the film-like outer covering material is provided, and the annular frame is provided in the unit battery, and the internal pressure is increased. The battery module is deformed and the pressure can be released safely. [Examples] Next, the present invention will be described by way of examples. [Example 1] A unit cell sealed with a film-like outer packaging material was produced by using money acid as a positive electrode active material, graphite as a negative electrode active material, and dissolving acetam in ethylene carbonate (EC) and ethylene carbonate. 6毫米的。 The ester (DEC) mixed solvent as an electrolyte, used to make the positive edge of the same tongue, the negative 158mm x 82mmx thickness 5.6mm thick. Then, 'the positive electrode tab of each unit battery, with the negative electrode tab overlapping 098135048 201115808 way, stacking 6 unit batteries, between the unit cells, vertical 16〇 ^, horizontal 80mm, thick 〇.5mm polycarbonate The ester board is joined by a double-sided adhesive tape. Next, as shown in the wiring diagram of Fig. 2, the positive electrode tab of the unit cell disposed at one end is welded to the positive electrode side of the positive electrode side input/output line 54 and the battery voltage detecting line 6〇 which are connected to the solvus line by resistance welding. Connect the tabs. Further, between the negative electrode tab of the unit battery and the positive electrode tab of the adjacent unit battery, an intermediate connection tongue to which the battery electric detection line is soldered is disposed, and is integrally joined by resistance welding. Similarly, between the negative electrode tabs and the positive electrode tabs of the unit cells No. 2 to No. 6, a middle connection tab to which the battery voltage detecting line is connected is connected, and is connected by resistance welding. At the other end, that is, at the negative electrode tab of the unit cell No. 6, the negative electrode side connecting tongue to which the negative electrode side input/output line is soldered is joined by resistance welding. Above and below the positive and negative tabs, a double-sided adhesive tape is used to insulate the separator from the longitudinal 2 mm x 30 mm x 2 mm thick rubber sponge in such a manner that the respective tongues are not released. In addition, on the upper surface and the lower surface of the assembled battery layer, a battery protection plate composed of polycarbonate foam having a longitudinal direction of 160 mm, a width of 82 mm, and a height of 0.5 mm is attached to the side of the assembled battery. Adhesive tape is used to insulate and fix the battery pack. 5毫米。 The assembled battery is 16 〇 · 2mm, horizontal 82.1 mm, thickness 36.5 mm. 0 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 It is placed in two positions at intervals of 30 mm. Next, it is housed in a casing made of polycarbonate, and the connection of the battery voltage output line is connected to the connector of the wafer melting line, and the connector of the wafer fuse and the connector for external connection are connected. In addition, the connector of the positive side input/output line and the negative side input/output line is attached to form a battery module. [Example 2] A battery was produced in the same manner as in Example 1. In the middle portion of the battery length direction, a ring-shaped nickel material having a width of 13 faces X and a thickness of 0.3 mm was processed into a strip-shaped polar frame having an inner dimension of 84 nunx 38 · 5 。. Then, it is housed in a frame made of polycarbonate to form a battery module. [Example 3] A battery was produced in the same manner as in Example 1. In the center portion of the longitudinal direction of the assembled battery, a band-shaped annular frame having a molding width of 15 Å, a thickness of 2 Å, and an inner dimension of 84 mm x 38 · 5 mm was placed at two positions at intervals of 30 Å. Then, it is housed in a frame made of polycarbonate to form a battery module. [Comparative Example 1] A unit cell was produced in the same manner as in Example 1 and housed in a frame made of polycarbonate to form a battery module. In the positive electrode side input and output lines of the battery modules of the embodiments 2, 3 and the comparative example, the electric circuit of the voltage of 44V and 7A is directly inserted and the electric current of the voltage is 44, 50, 850, 3, the film-like outer packaging breaks the 'silk body', the unfinished silk: the melting part is expanded in the unit cell of Comparative Example 1, and the frame is deformed. In contrast, (industrial availability), in the case where the unit cell constituting the battery module is inflated, the band-shaped ring of the assembled battery is pressed in the group direction formed by the body in the longitudinal direction of the assembled battery. The frame is called, and when it is abnormal, it is sealed with a wrap-around material or when it is overcharged, etc. 'Because it is oriented toward the lamination direction, it is: =:Γ — =?=, or _like outsourcing (4) The fragile part is broken due to not increasing, and the pressure inside the battery is released. The strength of the battery expansion. Correction of the phase to increase the corresponding single enemy [schematic description of the mode] state = is the decomposition of the vertical (four), the wire illustrates one of the implementation of the battery module of the present invention, Figure 2 is a description of the battery module of the present invention The map of electricity. Figure of the other embodiment of the image pool diagram: Figure: Figure _ is used to illustrate the assembly steps of the battery. A schematic perspective view ' is used to illustrate the electrical connection of the assembled batteries. 098135048 201115808 Fig. 6 is a perspective view for explaining one embodiment of a unit cell sealed with a film-like outer packaging material. Fig. 7 is a perspective view for explaining another embodiment of a unit battery sealed with a film-like outer covering material. [Main component symbol description] 1 Battery module 2 Ribbon-shaped ring frame 2a Ring frame corner 4 Battery 5 Insulation separator 7 Battery protection plate 8 ' 9 Adhesive tape 11a, lib Frame 12 screws 20, 20a, 20b, 20f, 21 unit battery 21 ' 21a ' 22 ' 22b positive tab 22, 22a, 22f, 23 negative tab 23 hot-melt part 24 safety valve 25 terminal-sealing part 54 positive side input-output line 55 Negative side input/output line 099135048 18 201115808 57 Current fuse 59 Input/output line External connector 60 Battery voltage detection line 61 Chip Hyun line 61a Input side connector 61b Output side connector 62 Fuse line 64 Output side battery voltage detection line 66 Battery voltage detection line External connector 71 Positive connection tab 72 Negative connection tab 73 Middle connection tab 098135048 19