M405645 五、新型說明： 【新型所屬之技術領域】 本創作涉及鋰電池之電極結構，尤指透過包覆與非直接貫 穿的方式，形成鋰電池的導電電極結構，達到電極導電處的密 封效果。 【先前技術】M405645 V. New description: [New technical field] This creation involves the electrode structure of lithium battery, especially the conductive electrode structure of lithium battery through coating and non-direct penetration, to achieve the sealing effect of the conductive part of the electrode. [Prior Art]
求的mi於材料技術的大幅突破，已可作為高電量需 //、电#(如：磷酸鐵鋰二次電池），例如使用於電動自 二電：：持等高電力需求的設備’此種高容量的非水 二 人电池其儲電量及供電量均較傳統鐘電池大。 =述二次，電池其電池罐通常為鋁製之金屬罐，一般而 ，金屬罐係由叙或不鑛鋼製成至少一端開口之圓柱形或 方形，待電池正極、負極及隔離膜封裝於金屬罐後，為了 保，電池内。[5的長期穩定密封，在電池罐的開口部位，會The pursuit of mi in the material technology of the breakthrough, has been used as a high-power demand / /, electricity # (such as: lithium iron phosphate secondary battery), for example, used in electric self-electricity:: equipment with equal power demand 'this A high-capacity non-water two-person battery has a larger storage capacity and power supply than a conventional clock battery. = The second time, the battery can is usually a metal can of aluminum. Generally, the metal can is made of a cylinder or a square with at least one end open by the Syrian or non-mineral steel, and the positive electrode, the negative electrode and the separator are sealed in the battery. After the metal can, in order to protect the battery inside. [5 long-term stable seal, in the opening of the battery can, will
以蓋板透過不同的密賴術而將其確實㈣，以確保電池 具有良好防水防氣性能。 ^現f方型的鋰電池電極係將對外電性連接的電極端子 »又置^蓋板上，且二者之間用絕緣片隔開，且透過鉚釘穿 透該ϋ二極端子及絕緣片’以將正極端子緊固於蓋板 上，另°又置、'巴緣片於蓋板下方絕緣該鉚釘與蓋板，而電極 ===釘之下端，該正極接頭與金屬罐内的電池 之正極（或負極）相連。 而圓柱形電、、也a丄 ’目前鐘電池連接金屬罐内部電;;至蓋 貫穿蓋板的導==:體成型或焊接所構成的導電柄與 值得注意2子的電性連結’完成料放電的應用 4 M405645 板外的電極結構設計上都是貫穿蓋板的方式，且由鋼性的 鉚釘或螺栓（導電端子）做為對外的電極。這種貫穿蓋板與 使用鋼性材料將會有以下缺失： 1.以貫穿方式的電極結構，雖然透過絕緣片可以達到 該處密封之效果，但當長時間使用後，一般使用橡膠之絕 緣片將會因為老化而產生間隙，此時貫穿孔處將不再是密 _ 封狀態，水氣將會由此處進入電池金屬罐内部，降低電池 的使用壽命。 ' 2.鋼性材料的對外電極，當二個比上的鋰電池透過電 Φ1 性連接元件相串聯或並聯時，如果電性連接元件也為鋼性 材料，在如電動自行車、電動輪椅等高震盪環境使用時， 將因為鋼性材料的相對應力使的電極貫穿孔被破壞而變 形，使貫穿孔處不是密封狀態，水氣將會由此處進入電池 金屬罐内部，降低電池的使用壽命。 3.以貫穿方式的電極結構其貫穿蓋板的部分(鉚釘或螺 栓（導電端子）)與對外的接觸點截面積不大，這種結構原理 乃如一條寬廣的大馬路在某一段為一條不成比例的橋樑， φ 故要通過橋樑的車子愈多時，在橋樑的入口愈容易產生塞 ' 車。同理，當大量電子要通過電極時，會因貫穿蓋板部分 的阻抗而產生熱能，因此在充電時會增加溫度，而溫昇效 應乃進一步導致阻抗再予增加的惡性循環，使用安全性會 不佳。再者，當大量電荷受電壓驅使且通過電極時，該電 極之電阻提高，充放電的效率自然降低。 4 ·現有以貫穿方式的電極結構其貫穿蓋板需裝設絕緣 片等用以密封之元件，要達到密封標準其製造難度與成本 都相當高。 5 M405645 【新型内容】 種鐘^^缺點’本創作之目的係在提供一 池的導電電極姓槿接貝牙的方式’形成鋰電 易的達到f極導電處的密封標準。 料内和輕 計，乍ΐί:目的，係透過彈性接觸的電極結構設 被破i_㈣時’1極在蓋體的導出處將不易 被破壞而變形，增加電池的使用壽命。 匆 應用目的，電極對外的接觸面積增大，適合 的安全性$^:低電極的電阻㈣’增加大電流應用 θ加經電池充放電的效率。 構—目的’簡化電極及蓋板的密封結構’結 曰、’達到密封標準的製造難度與成本都比現有技術低。 構，係將目的，本創作揭露一種裡電池之電極結 雷搞社拔電池之罐體内電池正極、負極對外電性連接之 7欠姑^如1其包括：一蓋板本體，該蓋板本體係利用絕緣防 質之兩朽士成型方式一體製設成型；及依需至少一金屬材 M3本體，該電極本射間段為—被包覆部，該被包 置於該1板本體内，且該被包覆部—端形成一第一 ’該第一幫折部延伸形成一連接部由該蓋板本體下 ’與罐體内電池之正極（或負極）電性連接；而該 #另—端形成一第二彎折部，該第二彎折部延伸形 一=出部由該蓋板本體上表面露出，用以對外導電。 /、中，該輸出部形成一第三彎折部，由該第三彎折部 延伸形成一接觸部。 一中，该盍板本體之上表面設有至少一固定元件，該 M405645 固定元件在設置上可與該電極本體 態或接觸狀態。 皮i设邻成非接觸狀 本創作的優點在於，電極太a 彎折部形成於該蓋板本體内部，, ΐ外!也:的電極本體在蓋板上::非直接 # 為電極本趙為片狀，透3:=:=内部。且因 ^ _ , 禾一弓折。Ρ延伸形成之接觸部’ 二1外可形成大接點面積，當At 過電極時，降低電極之電阻，挺q使且通 第：彎折邱：1C 充放電的效率，也因為 :震效果’減少習知因為鋼性材料的 j應力使的電極在蓋板上所產生的破壞變形，增加鍾電 :的)吏用壽命。有因為不同於習知以貫穿方式的電極結 構^化電極及蓋板的密封結構，所以不需要多餘的密封 =件就可料到㈣的鮮，製造難度與絲都比現有揭 4技術低。 _ 【實施方式】 茲有關本創作之詳細說明及技術内容，現配合圖式說明如 下： ° 一f參閱圖1與圖2，為本創作第一實施例之立體與剖 面示意圖。以方型的鋰電池為說明例，需將鐘 罐 ，電池正極、負極對外電性連接，一般方二= f蓋板本體1〇〇上會有二片狀金屬材質之電極本體200， ^別用以電性連接罐體3〇〇内電池正極、負極（圖中未示）， 每一個電極本體2〇〇中間段為一被包覆部21〇，該被包覆 7 M405645 部2U)設置於該蓋板本體1〇〇β，且該 形成-第-彎折部201’該第—彎折部2心:形：二 接部220由該蓋板本體⑽下表面lQi露出，使 220與罐:體_内電池之正極(或負極)電性連接;而該被： 覆：二形成一第二彎折部2〇2’該第二彎折部202 延伸形成-輸出部23〇由該蓋板本體⑽上表面1〇 Φ 匕=該輸产一：230用以對外導電。進一步該輸出部23〇 知瓜成弟—讀部2〇3，由該第三彎折部2〇3延伸形 成一Ϊ觸部240 :於對外電性連接時的接觸應用。 η 遠盍板本體1()°係利用絕緣防水材以射出成 型方式一心設成型’係可採用任何已知的材料斑方法 例如使用塑膠材料射出成型方式形成。 實施上’為了預防光線透過該蓋板本體100照設罐體 300内部’破壞罐體3⑽内部的化學材料，係可採用任何 已决方⑹在該蓋板本體刚内設置金屬片增加物理強 度與防光，或在該蓋板本體_貼附或塗抹防光材料。 電極本體，可彳額任何已知的導電金屬材質，例如 ::的銅一=寻金屬材質’電極本體200之被包覆部210 ，苐-、二言折部201與202形成於該蓋板本體⑽内部， 實施上除了包覆所形成的密封效果，第-、二彎折部201 與202也使得該電極本體2财蓋板本體⑽上形成非直 接貫穿的上下外露型態’透過第一、二彎折部2〇1與2〇2 也可以延長4 —由外露之接缝處滲人的水氣行程，阻隔水 氣因毛細現象而進入鋰電池罐體300内部。 ^透過第—4折部203延伸形成之接觸部240，除 了對夕可形成大的接點面積，當大量電荷受電壓驅使且通 8 M405645 過電極^體200時，可降低電極本體2〇〇對外接觸面之電 阻，提南充放電的效率。而第三彎折部2〇3也因為該電極 本體200係片狀金屬材質所形成，藉由片狀金屬原有的彈 性效果，以該第三彎折部2〇3為支撐點，使該接觸部24〇 對外連接時具有上下的緩衝效果，該接觸部24〇形成具防 震效果之對外接觸點，減少習知鋼性材料的相對應力對電 - 極所產生的破壞變形，增加鋰電池的使用壽命。 請再參閱圖3，實施上因為固定的需求，例如二個以 上的鋰電池透過電性連接元件相串聯或並聯時，該蓋板本 9體1〇0上表面1〇2可設置一固定元件400,，實施上可以 在該蓋板本體100 —體製設成型時將該固定元件400的封 接部401包覆於該蓋板本體100内，在由該蓋板本體1〇〇 上表面102外路其固定部402，方便串聯或並聯時鐘電池 連接時透過該固定部402鎖固連接。實施上該固定元件4〇〇 可形成於接，部240下方，且依該蓋板本體1〇〇厚度因素， 製造上在該蓋板本體1〇〇内部該固定元件4〇〇的封接部4〇1 與被包覆部210可以是非接觸狀態或接觸狀態。 鲁 冑此該口《元件働不再如同現有技術與電極直接相 連接，在如電動自行車、電動輪椅等高震盪環境使用時， 將不在因為連接固定因素而破壞電極本體200與蓋板本體 100間的連接關係。 請再參閱圖4與圖5，為本創作第二實施例之立體與 剖面示意圖。以本創作應用於圓柱形的鐘電池為說明例，、 -般圓柱練電池的電極係分別由兩端導電，所以蓋板本 肢500上S有片狀金屬材質的電極本體600，用以電性 連接罐體彻内電池正極或負極（圖中未示），電極本體_ 9 M4U!)645 2間段為被包覆部61G，該被包覆部6lQ設置於該蓋板本 ^ 500内，且該被包覆部61〇兩端分別形成第一、二彎折 j 601、602 ’第一彎折部6〇1延伸形成該連接部62〇由該 盖板本體500下表面501露出’用與罐體7〇〇内電池之正 ，(或負極)電严連接’而該第二彎折部6〇2延伸形成輸出 部630由該蓋板本體7〇〇上表面5〇2露出，用以對外導電； 該輸出部630 -端形成第三彎折部6()3，由該第三彎折 .部603延伸形成該接觸部64〇可用於對外電性連接時的接 . 觸應用。 m 與第一貫施例相同，該蓋板本體500係利用絕緣防水 材以射出成型方式-體製設成型，係可採用任何已知的材 料與^法。為了預防光線透過，可採用任何已知方法，如 在該蓋板本體500内設置金屬片增加物理強度與防光，或 在該蓋板本體500貼附或塗抹防光材料。 電極本體600也與第一實施說明的相同，可採用任 已知的導電金屬材質，例如常用的銅、鋁等金屬材質。 — 請再參閱圖6，實施上因為固定的需求，例如二個以 _ 上的鋰電池透過電性連接元件相串聯或並聯時，該蓋板本 體500上表面502也可設置一固定元件8〇〇，該固定元 800的封接部801包覆於該蓋板本體5〇〇内，在由該蓋板 本體500上表面502外露其固定部8〇2，實施製造上在^ 蓋板本體500内部該封接部801與被包覆部61〇\可以是= 接觸狀態或接觸狀態。。一般圓柱形的鐘電池將該固定一 件800設於該蓋板本體500上表面5〇2的圓心處了形 接觸部640下方，方便串聯或並聯圓柱形的鋰電池^接= M405645 本創作在上文中已以較佳實施例揭露，然熟習本項& 術者應理解的是，該實施例僅用於描繪本創作，而不鹿解 讀為限制本創作之範圍。應注意的是，舉凡與該實扩^丨批. 效之變化與置換，均應設為涵蓋於本創作之範略 寺 ^創作之保護範圍當以下文之中請專利範“界定=為Make sure that the cover is transparent (4) through different splicing techniques to ensure that the battery has good waterproof and gas-proof performance. ^ The current f-type lithium battery electrode is electrically connected to the electrode terminal » and is placed on the cover, and the two are separated by an insulating sheet, and penetrate the two terminals and the insulating sheet through the rivet. 'To fasten the positive terminal to the cover plate, and then to separate the 'river plate' to insulate the rivet and the cover plate under the cover plate, and the electrode === the lower end of the nail, the positive electrode joint and the battery in the metal can The positive (or negative) is connected. The cylindrical electric, and also a 'current clock battery connected to the metal can internal;; to the cover through the cover of the guide ==: body forming or welding of the conductive handle and notable 2 electrical connection 'completed Application of material discharge 4 M405645 The electrode structure outside the board is designed to penetrate the cover plate, and the steel rivets or bolts (conductive terminals) are used as external electrodes. The through-cover and the use of the steel material will have the following defects: 1. The electrode structure in the penetrating manner, although the sealing effect can be achieved through the insulating sheet, when used for a long time, the rubber insulating sheet is generally used. There will be a gap due to aging, and the through hole will no longer be in a sealed state, where moisture will enter the inside of the battery can, reducing the battery life. 2. The external electrode of the steel material, when two lithium batteries pass through the electric Φ1 connecting element in series or in parallel, if the electrical connecting element is also a steel material, such as electric bicycles, electric wheelchairs, etc. When the oscillating environment is used, the electrode through hole is deformed due to the relative stress of the steel material, so that the through hole is not sealed, and the water vapor will enter the inside of the battery metal can, thereby reducing the service life of the battery. 3. In the penetrating mode, the cross-sectional area of the part (rivet or bolt (conductive terminal)) penetrating the cover plate and the external contact point is not large. This structural principle is such that a wide road is not in a certain section. Proportion of bridges, φ Therefore, the more cars that pass through the bridge, the easier it is to create a plug at the entrance of the bridge. Similarly, when a large amount of electrons are to pass through the electrode, heat is generated due to the impedance of the portion of the cover plate, so that the temperature is increased during charging, and the temperature rise effect is a vicious cycle that further increases the impedance, and the safety is used. Not good. Furthermore, when a large amount of charge is driven by a voltage and passes through an electrode, the resistance of the electrode is increased, and the efficiency of charge and discharge is naturally lowered. 4 · The existing electrode structure in the penetrating manner is required to be provided with an insulating sheet or the like for sealing the member through the cover plate, and the manufacturing difficulty and cost are high to achieve the sealing standard. 5 M405645 [New Content] Kinds of Clocks ^^ Disadvantages The purpose of this creation is to provide a sealed standard for the conductivity of the lithium electrode to provide the conductivity of the lithium electrode. In-material and light weight, 乍ΐί: The purpose is to break the i_(4) through the electrode structure of the elastic contact. The 1 pole is not easily deformed and deformed at the lead of the cover, increasing the service life of the battery. For the purpose of rush application, the external contact area of the electrode is increased, and the appropriate safety is $^: the resistance of the low electrode (4)' increases the efficiency of θ plus the charge and discharge of the battery. The construction-purpose 'simplifies the sealing structure of the electrode and the cover plate', and the manufacturing difficulty and cost of achieving the sealing standard are lower than those of the prior art. The purpose of the structure is to expose a battery in which the electrode of the battery is connected to the battery. The positive and negative electrodes of the battery are connected to the outside of the battery. The following includes: a cover body, the cover The system is formed by using two insulation forming methods of insulation and anti-mass; and at least one metal material M3 body is required, and the electrode inter-electrode section is a covered portion, and the package is placed on the 1 plate body. And the covered portion-end forms a first 'the first gusset portion extends to form a connecting portion electrically connected to the positive electrode (or the negative electrode) of the battery in the can body; The other end forms a second bent portion, and the second bent portion extends from the upper surface of the cover body to be electrically conductive. And, the output portion forms a third bent portion, and the third bent portion extends to form a contact portion. In one embodiment, the upper surface of the seesaw body is provided with at least one fixing component, and the M405645 fixing component is disposed to be in a state of being in contact with the electrode. The advantage that the skin i is adjacent to the non-contact shape is that the electrode too a bent portion is formed inside the cover body, and the electrode body is also on the cover plate:: non-direct # is the electrode Ben Zhao For the flaky, transparent 3:=:= internal. And because of ^ _, Wo bowed. The contact portion formed by the extension of the crucible can form a large contact area. When the At is over the electrode, the resistance of the electrode is lowered, and the pass is made: the bending efficiency is also caused by the efficiency of 1C charging and discharging. 'Reducing the damage caused by the j stress of the steel material caused by the j stress of the steel material, increasing the life of the battery. There is a seal structure which is different from the electrode structure of the electrode in the penetrating manner, so that no unnecessary seal is required, and the material can be expected to be fresh (four), and the manufacturing difficulty and the wire are lower than those of the prior art. _ [Embodiment] With regard to the detailed description and technical contents of the present invention, the following description will be given with reference to the following: °F, referring to Fig. 1 and Fig. 2, is a perspective view and a cross-sectional view of the first embodiment of the present invention. Taking a square type lithium battery as an example, the bell jar, the positive electrode and the negative electrode of the battery need to be electrically connected externally. Generally, there is a two-piece metal electrode body 200 on the cover body of the f-cover body. It is used for electrically connecting the positive electrode and the negative electrode of the battery in the tank body 3 (not shown), and the middle portion of each electrode body 2 is a covered portion 21〇, which is covered by 7 M405645 2U) The cover body 1ββ, and the forming-first bending portion 201' the first bending portion 2: shape: the two connecting portions 220 are exposed by the lower surface lQi of the cover body (10), so that 220 The positive electrode (or the negative electrode) of the inner battery is electrically connected; and the outer cover is formed by a second bent portion 2〇2', and the second bent portion 202 is extended to form an output portion 23 The upper surface of the cover body (10) is 1 〇 Φ 该 = the production one: 230 is used for external conduction. Further, the output unit 23 knows the melon-reading portion 2〇3, and the third bent portion 2〇3 extends to form a contact portion 240 for contact application in the case of external electrical connection. The η 盍 本体 body 1 () ° is formed by injection molding in an insulating molding material. The method can be formed by any known material spot method such as injection molding using a plastic material. In order to prevent the light from damaging the inside of the can body 3 (10) through the cover body 100, it is possible to use any of the determined parties (6) to provide a metal sheet in the cover body to increase the physical strength and Lightproof, or attach or apply a light-proof material to the cover body. The electrode body can be made of any known conductive metal material, for example: copper one = metal-seeking material 'the covered portion 210 of the electrode body 200, and the 苐-, the second-folded portions 201 and 202 are formed on the cover plate In the interior of the body (10), in addition to the sealing effect formed by the coating, the first and second bending portions 201 and 202 also form an upper and lower exposed type of the electrode body 2 (10) that is not directly penetrated through the first The two bending portions 2〇1 and 2〇2 can also be extended by 4—the water-gas stroke that is infiltrated by the exposed joints, and the water vapor is blocked from entering the inside of the lithium battery can 300 due to capillary phenomenon. The contact portion 240 formed by the extension of the -4-fold portion 203 can form a large contact area, and when the large amount of charge is driven by the voltage and passes through the electrode body 200, the electrode body 2 can be lowered. The resistance of the external contact surface, the efficiency of charging and discharging. The third bent portion 2〇3 is also formed by the sheet metal material of the electrode body 200, and the third bent portion 2〇3 is used as a support point by the original elastic effect of the sheet metal. The contact portion 24 具有 has an upper and lower buffering effect when externally connected, and the contact portion 24 〇 forms an external contact point with a shockproof effect, reduces the damage caused by the relative stress of the conventional steel material to the electric pole, and increases the service life of the lithium battery. . Please refer to FIG. 3 again. In the implementation, because of the fixed requirement, for example, when two or more lithium batteries are connected in series or in parallel through the electrical connecting elements, the upper surface 1〇2 of the cover body 9 can be provided with a fixing component. 400. In the implementation, the sealing portion 401 of the fixing component 400 can be covered in the cover body 100 when the cover body 100 is integrally formed, and the upper surface 102 is covered by the cover body 1 The fixing portion 402 of the external path is convenient for locking connection through the fixing portion 402 when the clock battery is connected in series or in parallel. In practice, the fixing member 4 can be formed under the joint portion 240, and according to the thickness of the cover body 1 , the sealing portion of the fixing member 4 〇〇 inside the cover body 1 制造 can be manufactured. The 〇1 and the covered portion 210 may be in a non-contact state or a contact state. Recklessly, the component "is no longer directly connected to the electrode as in the prior art. When used in a high-vibration environment such as an electric bicycle or an electric wheelchair, the electrode body 200 and the cover body 100 will not be damaged due to the connection fixing factor. Connection relationship. Please refer to FIG. 4 and FIG. 5 again for a perspective view and a cross-sectional view of the second embodiment of the present invention. The present invention is applied to a cylindrical clock battery as an example. The electrode system of the general cylindrical battery is electrically conductive at both ends, so that the cover body 500 has an electrode body 600 of a sheet metal material for electricity. Connect the tank to the positive or negative electrode of the battery (not shown), and the electrode body _ 9 M4U!) 645 is a covered portion 61G, and the covered portion 61Q is disposed in the cover plate 500 And the first and second bends j 601, 602 are respectively formed at both ends of the covered portion 61. The first bent portion 6〇1 extends to form the connecting portion 62 and is exposed by the lower surface 501 of the cover body 500. The second bent portion 6〇2 is extended to form an output portion 630 which is exposed by the positive and/or negative electrode of the battery in the tank body 7 and is exposed by the upper surface 5〇2 of the cover body 7. The output portion 630-end forms a third bent portion 6()3, and the third bent portion 603 extends to form the contact portion 64. The contact portion can be used for external electrical connection. . m As in the first embodiment, the cover body 500 is formed by an injection molding method using an insulating waterproof material, and any known materials and methods can be employed. In order to prevent light from transmitting, any known method may be employed, such as providing a metal sheet in the cover body 500 to increase physical strength and light resistance, or attaching or applying a light-proof material to the cover body 500. The electrode body 600 is also the same as that described in the first embodiment, and any known conductive metal material such as a commonly used metal such as copper or aluminum may be used. — Referring to FIG. 6 again, the upper surface 502 of the cover body 500 may also be provided with a fixing component 8 when the lithium battery is connected in series or in parallel through the electrical connection elements. The sealing portion 801 of the fixing element 800 is wrapped in the cover body 5〇〇, and the fixing portion 8〇2 is exposed from the upper surface 502 of the cover body 500, and the cover body 500 is manufactured. The inside of the sealing portion 801 and the covered portion 61〇\ may be in a contact state or a contact state. . Generally, the cylindrical clock battery is disposed on the lower surface of the upper surface 5〇2 of the cover body 500 at the center of the contact portion 640, facilitating the series or parallel cylindrical lithium battery connection = M405645 The above has been disclosed in the preferred embodiments, and it should be understood by those skilled in the art that this embodiment is only used to depict the present invention, and is not to be construed as limiting the scope of the present invention. It should be noted that the changes and replacements of the actual expansion and the approval should be set as the scope of the protection of the creation of the Fanlu Temple.
11 M405645 【圖式簡單說明】 圖1為本創作第一實施例之立體示意圖。 圖2為本創作第一實施例之剖面示意圖。 圖3為本創作第一實施例之另一應用示意圖。 圖4為本創作第二實施例之立體示意圖。 圖5為本創作第二實施例之剖面示意圖。 圖6為本創作第三實施例之另一應用示意圖。11 M405645 [Simplified description of the drawings] Fig. 1 is a perspective view of the first embodiment of the creation. Figure 2 is a schematic cross-sectional view showing the first embodiment of the creation. FIG. 3 is a schematic diagram of another application of the first embodiment of the present invention. Figure 4 is a perspective view of the second embodiment of the present invention. Figure 5 is a schematic cross-sectional view showing a second embodiment of the present invention. FIG. 6 is a schematic diagram of another application of the third embodiment of the present invention.
12 M405645 【主要元件符號說明】 100、 500 :蓋板本體 101、 501 :下表面 102、 502 :上表面 200、 600 :電極本體 201、 601 :第一彎折部 202、 602 :第二彎折部 • 203、603 :第三彎折部 . 210、610 ··被包覆部 . 220、620 :連接部 S 230、630 :輸出部 240、640 :接觸部 300、700 :罐體 400、 800 :固定元件 401、 801 :封接部 402、 802 :固定部12 M405645 [Description of main component symbols] 100, 500: cover body 101, 501: lower surface 102, 502: upper surface 200, 600: electrode body 201, 601: first bent portion 202, 602: second bend 203, 603: third bent portion. 210, 610 · covered portion. 220, 620: connecting portion S 230, 630: output portion 240, 640: contact portion 300, 700: tank 400, 800 : fixing member 401, 801: sealing portion 402, 802: fixing portion