M245602 五、創作說明（1) 一種圓筒型鋰離子電池 有斷電、茂壓等多重安全防=防爆結構的改良’尤指具 用安全的結構設計者。 濩彳曰施，以確保鋰離子電池使 按，二次鋰離子電池罝 目前已躍曰盏一 4恭、丄，、有電容量大、重量輕等優點， 電過程巾汁H =二/市場的主流，二次鐘離子電池在充 电過％中，如因充電過久， charge)。電池内部的電解^每成電池過量充電（over 的溫度會突昇，内壓亦隨之上會升因此上生分解，使得電池 險性。雖然目·，售的有發生燃燒或爆炸的危 邻; 爆機構的厚度太厚，並佔據電池内 :太：：積目前市售的二次鐘離子電池容量提昇不 :太：ί，14些保護機構雖然具有保護功能，#製造加工 巧過：，零件數目繁多及體積過大等因t，都不利於高 谷ϊ鋰離子電池的發展。 本創作人有鑒於上述傳統鋰離子電池所有缺點，期能 加：改良’並提供-種更安全、更便宜、體積更小的安全 防爆結構。乃積極研究，經過多次的試驗所得之成果，綠 於研，出本創作圓筒型鋰離子電池安全防爆結構。、、 疋以，本創作之主要目的旨在提供一-，子電池安全防爆結構的改良，#由在電二 =裂，造成充電電路的斷路，當電池的内壓過高日:内』 王閥的閥門破裂達到洩壓的作用。使得電池不再繼浐 電，有效的防止電池燃燒及氣爆的危險。 ° M245602 五、創作說明（2) 茲就本創作之功能原理及構造以列舉圖示說明如后，俾使 對本創作之内容更加明瞭： (一）圖式說明： 第一圖係本創作之實施例結構分析圖。 第二圖係本創作之實施例結構剖示圖，用以說明電池靜止 或正常充放電狀態下之結構。 第三圖係第二圖之局部放大圖，詳細揭示電池靜止或正常 充放電狀態下而電池達到斷電保護之結構。 第四圖係本創作之實施例内壓異常升高而電池斷電之結構 示意圖。 第五圖係本創作之實施例内壓異常升高而電池排放内部高 壓氣體之結構示意圖。 (二 -) 圖 面 元 件 說 明 ·· 1 頂 蓋 2 PTC板 3 ·· 安全閥 4 絕 緣 環 5 斷電片 6 ： P I絕緣片 7 電 池 殼 8 正極導電片 9 ： 密封絕緣環 10 :頂蓋氣孔 1 1 :斷電片氣孔 12 :斷電片之 導 電 柄 A 斷 電 片 受 力 破 壞 起點。 B :斷 電片受力破 壞 終 點。 C 安 全 閥 受 力 破 壞 起點。 D :安 全閥受力破 壞 終 點。 E 安 全 閥 底 部 導 電 點。 P ： :電 池 内 部 正 常 壓 力。 P1 ··電池内部異常壓力。 P2 :電池内部異常壓力。M245602 V. Creative Instructions (1) A cylindrical lithium-ion battery with multiple safety protections such as power failure and pressure reduction = improvement of explosion-proof structure ', especially a structural designer with a safe structure. To ensure that the lithium-ion battery is activated, the secondary lithium-ion battery has been used for a long time, and has the advantages of large capacity and light weight. The electric process towel juice H = 2 / market The mainstream of secondary clock ion batteries is in the percentage of overcharging (such as due to overcharging, charge). The internal electrolysis of the battery ^ Overcharged the battery (over temperature will rise suddenly, and the internal pressure will rise accordingly, so the ascension will decompose, making the battery dangerous. Although it is sold, there is a danger of burning or explosion. The thickness of the explosion mechanism is too thick and occupies the battery: too :: the capacity of the secondary clock ion battery currently available on the market does not increase: too: ί, although some protection mechanisms have a protective function, # 制造 加工 巧 过:, Many factors such as the large number of parts and the large volume are not conducive to the development of Takaguya lithium-ion batteries. In view of all the shortcomings of the traditional lithium-ion batteries mentioned above, the author can add: improve and provide-a safer, cheaper, Smaller and safer explosion-proof structure. It is the result of active research. After many experiments, it is green and researched. The cylinder-shaped lithium ion battery safety explosion-proof structure was created. Therefore, the main purpose of this creation is Provide one-, the improvement of the safety and explosion-proof structure of the sub-battery, # by the electric two = crack, causing the charging circuit to open, when the internal pressure of the battery is too high: internal】 The valve of the king valve ruptures to achieve the role of pressure relief. The battery can no longer relay electricity, which can effectively prevent the danger of battery burning and gas explosion. ° M245602 V. Creation Instructions (2) The functional principles and structure of this creation are listed below with illustrations and illustrations. The content is more clear: (1) Schematic description: The first diagram is a structural analysis diagram of the embodiment of the present creation. The second diagram is a structural sectional diagram of the embodiment of the present creation, which is used to explain the battery in a stationary or normal charging and discharging state. Structure. The third diagram is a partial enlarged view of the second diagram, which reveals in detail the structure of the battery that reaches the power-off protection when the battery is stationary or under normal charge and discharge conditions. The fourth diagram is an abnormally high internal pressure and the battery is broken in the embodiment of this creation. The schematic diagram of the structure of electricity. The fifth diagram is the structure diagram of the internal pressure abnormally increased and the battery discharges the internal high-pressure gas in the embodiment of this creation. (II-) Description of the drawing elements ·· 1 Top cover 2 PTC board 3 ·· Safety valve 4 Insulation ring 5 Power failure sheet 6: PI insulation sheet 7 Battery case 8 Positive conductive sheet 9: Sealed insulation ring 10: Top cover air hole 1 1: Power cut sheet air hole 12: Power cut sheet Conductive handle A. The starting point of the power failure sheet under the force of destruction. B: The end of the power failure sheet under the force. C: The starting point of the safety valve under the force. D: The end of the safety valve under the force. E: The conductive point at the bottom of the safety valve. Normal pressure. P1 ·· Abnormal pressure inside the battery. P2: Abnormal pressure inside the battery.
第5頁 M245602 五、創作說明（3) 參閱第一圖所示’本創作之電池結構由上而下係具有 一環狀PI絕緣片6，其材質為pi(聚醯亞胺Poly Imide )， 放置於一頂蓋1上方，頂蓋丨下方放置一電流保護板2，將 PI絕緣片6、頂蓋1及電流保護板（PTC板）2 一起放置於一安 全閥3上方所設環狀内緣中，安全閥3下方放置一絕緣環 4 ’絕緣環4下方放置一斷電片5，而斷電片5形成有薄肉部 及没置有導電柄1 2，安全閥3底部下緣中心點（並請配合參 閱第二圖）即安全閥3底部導電點e，以雷射焊接方式牢固 的連接斷電片5中心點。斷電片5下方放置密封絕緣環9， 最後將所有零件放置於電池殼7内側上方，用封口機將電 池殼7上緣、安全閥3上緣及密封絕緣環9上緣加壓向内側 _曲9 0度’以達到密合及固定之功能；電池加工成型後之 結構如第二圖。 參閱第二圖所示，電池在正常狀態下之結構功能；即 電池殼内之正極電源由正極導電片8經由連接斷電片5之導 電柄1 2導通斷電片5之電源，藉由斷電片5中心點將電源由 安全閥3底部導電點E傳導至安全閥3、PTC板（電流保護板 )2及頂蓋1。Page 5 M245602 5. Creation instructions (3) Refer to the first picture 'The battery structure of this creation has a ring-shaped PI insulating sheet 6 from top to bottom, and its material is pi (Polyimide Poly Imide). Placed on top of a top cover 1 and a current protection plate 2 below the top cover 丨 the PI insulation sheet 6, the top cover 1 and the current protection plate (PTC board) 2 are placed together in a ring set above a safety valve 3 In the edge, an insulating ring 4 is placed under the safety valve 3 ', and a power-off sheet 5 is placed under the insulating ring 4, and the power-cut sheet 5 is formed with a thin meat portion and no conductive handle 12, and the center point of the bottom edge of the safety valve 3 (Please also refer to the second figure for cooperation) That is, the conductive point e at the bottom of the safety valve 3 is firmly connected to the center point of the power-off sheet 5 by laser welding. A sealing and insulating ring 9 is placed under the power-cut sheet 5 and finally all parts are placed above the inside of the battery case 7. Use a sealing machine to press the upper edge of the battery case 7, the upper edge of the safety valve 3, and the upper edge of the sealing and insulating ring 9 to the inside_ Bend 90 ° 'to achieve the function of close and fix; the structure after the battery is processed and shaped is shown in the second figure. Referring to the second figure, the structure and function of the battery in a normal state; that is, the positive power supply in the battery case is powered by the positive conductive sheet 8 through the conductive handle connected to the power-cut sheet 5 and the power of the power-cut sheet 5 is turned on. The central point of the electric chip 5 conducts the power from the conductive point E at the bottom of the safety valve 3 to the safety valve 3, the PTC board (current protection board) 2 and the top cover 1.
參閱第二圖所示，當電池因充電過久造成電解液分解 成氣^體’導致内壓力上升；由氣體產生之内壓力經由斷電 片5氣孔對安全閥3底部產生向上推力；於此同時，安全閥 3底#導電點E因使用雷射焊接而牢固連接於斷電片5中心 點^當内壓力上升至一定程度pl，斷電片5之薄肉部產生 破壞’由斷電片受力破壞起點A開始破裂至受力破壞終點BAs shown in the second figure, when the battery is charged for too long, the electrolyte decomposes into gas, which causes the internal pressure to rise; the internal pressure generated by the gas generates an upward thrust on the bottom of the safety valve 3 through the air hole of the power-off sheet 5; here At the same time, the bottom # conductive point E of the safety valve 3 is firmly connected to the center point of the power-off sheet 5 by using laser welding. When the internal pressure rises to a certain level pl, the thin meat portion of the power-cut sheet 5 is damaged. The starting point of force failure A starts to break to the end point of force failure B
M245602 五、創作說明U) ------ 而，裂(請參閱第四圖所示），此際安全閥3底部因承受 内壓力造成之向上推力與斷電片5因剝離而導致向上凸 起’並^生％電之效果。 再f閱第三圖所示，安全閥3底部並設計成一環狀V型 ，即受__^ ^ 弋内壓力時首先破壞之機構。當内壓力繼續上 升至，超過安全閥3底部之環狀V型槽承受範圍，安全閥 3由底部環狀V型槽之安全閥3受力破壞起點c破裂至安全閥 3受力破壞終點D而斷裂。參閱第五圖所示，此時氣體則經 由安全閥3底部之破裂^位/置逸出’經由環狀PTC板（電流保 護板）2中空部分及頂蓋氣孔10逸出電池外，達到洩壓目的M245602 V. Creative Instructions U) ------ However, the crack (see the fourth picture), at this time the bottom of the safety valve 3 due to the internal pressure caused by the upward thrust and the power-off sheet 5 caused by the peeling up The effect of bulging and generating% electricity. As shown in the third figure, the bottom of the safety valve 3 is designed as a ring-shaped V-shape, that is, the mechanism that will be destroyed first under the pressure of __ ^ ^ 弋. When the internal pressure continues to rise and exceeds the bearing range of the annular V-shaped groove at the bottom of the safety valve 3, the safety valve 3 starts from the force of the safety valve 3 of the annular V-shaped groove at the bottom and breaks down to the end point D of the safety valve 3. And break. Refer to the fifth figure, at this time, the gas escapes through the rupture of the bottom of the safety valve 3 / position / placement 'through the hollow portion of the annular PTC board (current protection board) 2 and the top cover air hole 10 to escape from the battery and reach the vent. Purpose