TWM615113U - 具獨立監控之金屬殼式電池裝置 - Google Patents
具獨立監控之金屬殼式電池裝置 Download PDFInfo
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- TWM615113U TWM615113U TW110202881U TW110202881U TWM615113U TW M615113 U TWM615113 U TW M615113U TW 110202881 U TW110202881 U TW 110202881U TW 110202881 U TW110202881 U TW 110202881U TW M615113 U TWM615113 U TW M615113U
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
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- H—ELECTRICITY
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- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
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- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
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- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- H01M10/65—Means for temperature control structurally associated with the cells
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Abstract
本新型提供一種具獨立監控之金屬殼式電池裝置,其係利用獨立且完整的電池單元相互接觸連接來構成串聯、並聯或是串並聯混合之電池芯,再藉由金屬殼來進行封裝,因電池單元之間僅有電荷轉移而無進行電化學反應,因此可就由金屬殼內所設置的電路板模組,配合電池單元設置有監控端子,而能夠針對每一電池單元獨立偵測監控,有效掌握整體電池裝置之內的各電池單元的狀態。
Description
本新型係關於一種電池裝置,尤指一種利用完整且獨立封裝之電池單元構成電池芯,同時具有針對每一電池單元獨立監控的金屬殼式電池裝置。
既有的電池裝置為了達到足夠的電容量與電壓,來應用於各種領域,大多需要將數個電池單元來予以串聯、並聯或是串聯、並聯混合的方式構成堆疊的電池芯,以達到足夠的電量與電壓,以供後續應用於各種不同的領域。
前案如鈕扣型二次電池如CN110447142,揭露了電芯採用數個電池單元來進行串聯或並聯型態堆疊,提高單位體積的能量密度。然而,就其結構來說,無法針對堆疊於殼體內的電芯狀態進行偵測與監控,這對密封於殼體內的數個電池單元來說,會形成安全性的一大隱憂。
有鑑於此,本新型係針對上述缺失,提出一種嶄新的具獨立監控之金屬殼式電池裝置。
本新型之主要目的在於提供一種具獨立監控之金屬殼式電
池裝置,利用完整且獨立模組之電池單元來進行堆疊成電池芯,配合直接與金屬殼來接觸構成電性連接,使得電池芯的電流路徑最大化。
本新型之另一目的在於提供一種具獨立監控之金屬殼式電池裝置,每一電池單元皆可設置有監控端子,配合金屬殼內設置有電路板模組,而能對每一電池單元進行電性監控,以避免電池過充過放提升安全性。
本新型提出一種具獨立監控之金屬殼式電池裝置,其係包含有電池芯、金屬殼、電路板模組與複數個監控端子,電池芯由複數個電池單元相互堆疊形成串聯、並聯、或是串聯並聯混合的型態所構成,且每一電池單元皆為獨立且完整的模組,藉由金屬殼將電池芯封裝於其內,且與電池芯之最外側的直接導引連接,使電池芯的電流路徑最大化;同時每一電池單元皆可設置有監控端子,配合電路板模組設置於金屬殼內,而能接收監控端子的訊號整合向外輸出,而能對每一電池單元進行電性監控,以避免電池過充過放提升安全性。
另一方面,電池芯與金屬殼之間可充填有散熱劑或阻燃劑,來提昇散熱效率以維持電池性能,並能提升電池裝置的安全性。
底下藉由具體實施例詳加說明,當更容易瞭解本新型之目的、技術內容、特點及其所達成之功效。
20:電池單元
201:電化學系統
21:隔離層
22、23:活性材料層
24、25:集電層
26:框膠
261:改質矽膠層
262:改質矽膠層
263:矽膠層
30:金屬殼
31:金屬上蓋
32:金屬下蓋
33:絕緣片
34:電路板模組
35:監控總埠
36:支撐側板
37:止逆閥
40:電池芯
50:監控端子
第1A、1B圖係為本新型具獨立監控之金屬殼式電池裝置之示意圖。
第2A圖係為本新型具獨立監控之金屬殼式電池裝置之電池單元的示意
圖。
第2B圖係為本新型具獨立監控之金屬殼式電池裝置之電池單元的另一實施例示意圖。
第2C圖係為本新型具獨立監控之金屬殼式電池裝置之電池單元的分解示意圖。
第3A圖係為本新型具獨立監控之金屬殼式電池裝置之電池芯串聯型態示意圖。
第3B圖係為本新型具獨立監控之金屬殼式電池裝置之電池芯並聯型態示意圖。
第3C圖係為本新型具獨立監控之金屬殼式電池裝置之電池芯串聯並聯混合型態示意圖。
第4A、4B圖係為本新型具獨立監控之金屬殼式電池裝置之剖面示意圖。
為了讓本新型的優點,精神與特徵可以更容易明確的了解,後續將以實施例並參照所述圖式進行詳述與討論。需聲明的是該些實施例僅為本新型代表性的實施例,並不以此侷限本新型之實施態樣與請求範疇僅能侷限於該些實施例態樣。提供該些實施例的目的僅是讓本新型的公開內容更加透徹與易於了解。
在本新型公開的各種實施例中使用的術語僅用於描述特定實施例的目的,並非在限制本新型所公開的各種實施例。除非有清楚的另
外指示,所使用的單數形式係也包含複數形式。除非另有限定,否則在本說明書中使用的所有術語(包含技術術語和科學術語)具有與本新型公開的各種實施例所屬領域普通技術人員通常理解的涵義相同的涵義。上述術語(諸如在一般使用辭典中限定的術語)將被解釋為具有與在相同技術領域中的語境涵義相同的涵義,並且將不被解釋為具有理想化的涵義或過於正式的涵義,除非在本新型公開的各種實施例中被清楚地限定。
在本說明書的描述中,參考術語”一實施例”、”一具體實施例”等地描述意指結合該實施例描述地具體特徵、結構、材料或者特點包含於本新型的至少一個實施例中。在本說明書中,對上述術語的示意性表述不一定指的是相同的實施例。而且,描述的具體特徵、結構、材料或者特點可以在任何一個或多個實施例中以合適的方式結合。
在本新型的描述中,除非另有規定或限定,需要說明的是術語”耦接”、”連接”、”設置”應做廣義的理解,例如,可以是機械連接或電性連接,亦可以是兩個元件內部的連通,可以是直接相連,亦可以通過中間媒介間相連,對於本領域通常知識者而言,可以根據具體情況理解上述術語的具體涵義。
請參閱第1A、1B圖,本新型具獨立監控之金屬殼式電池裝置係利用金屬殼30將電池芯40容設封裝於其中,因此首先針對電池單元20的部份來予以說明,請參閱第2A、2C圖,本新型之電池單元20包含有兩集電層24、25、電化學系統201與框膠26,電化學系統201包含有隔離層21、兩活性材料層22、23、以及含浸或混鍊於其中的電解質系統,隔離層21的材料係可選自於高分子材料、陶瓷材料或玻璃纖維材料,其上具有微孔洞
可供離子通過,微孔洞可為貫通孔或是蟻孔(非直線貫通的態樣)的型態,甚至是直接採用多孔性材料來達成,其中陶瓷材料選自於絕緣材料時,可以是微米級與奈米級的二氧化鈦(TiO2)、三氧化二鋁(Al2O3)、二氧化矽(SiO2)等材質或是烷基化的陶瓷顆粒所形成。陶瓷材料也可以選自氧化物固態電解質,例如鋰鑭鋯氧(lithium lanthanum zirconium oxide;Li7La3Zr2O12;LLZO)或者磷酸鈦鋁鋰(LATP)等。此外,陶瓷材料也可以是上述絕緣陶瓷材料與氧化物固態電解質所混合而成。上述的隔離層更可以包含高分子黏著劑,例如聚二氟乙烯(Polyvinylidene fluoride;PVDF)、聚偏二氟乙烯-共-三氯乙烯(PVDF-HFP)、聚四氟乙烯(Polytetrafluoroethene;PTFE)、壓克力酸膠(Acrylic Acid Glue)、環氧樹脂(Epoxy)、聚氧化乙烯(PEO)、聚丙烯腈(PAN)或聚亞醯胺(PI)等。
電解質系統含浸於活性材料層22、23中,其可為液態、膠態、固態電解液、或是其任意組合之混合電解液;活性材料層22、23與藉由中間的隔離層21予以隔離並構成電化學系統201,藉由其活性材料成份可將化學能轉成電能使用(供電)或將電能轉換成化學能儲存於系統之中(充電),而能同時達成離子的導通與遷移,而所產生的電子則可直接由集電層24、25向外導出。而集電層24、25之材料常見者為銅以及鋁,當然亦可是其他鎳、錫、銀、金等金屬或金屬合金。
框膠26之材質可為環氧樹脂、聚乙烯、聚丙烯、聚氨酯、熱塑性聚亞胺、矽氧樹脂、壓克力樹脂、矽膠或紫外線硬化膠,其係設置於兩集電層24、25之周緣,並圈繞封圍於電化學系統201(活性材料層22、23與中間的隔離層21),同時用以黏著兩集電層24、25並將電解質系統封裝
於兩集電層24、25之間而不會外漏、且不與其他電池單元20之電解質系統相互流通;因此,電池單元20是直接採用集電層24、25與框膠26作為封裝結構所形成之獨立且完整供電的模組。
而為了使框膠26之封裝效果更佳,當採用為矽膠材質時,可設計框膠26具有三層之結構,請參閱第2B圖,上下兩層為改質矽膠層261、262而中間為矽膠層263,兩側的改質矽膠層261、262為矽膠藉由調整加成型矽膠與縮合型矽膠之組成比例、或是添加添加物來予以改質,使其適合黏接異質性的材料(也就是集電層24、25與中間的矽膠層263),藉此設計則可使其介面間的接著力提高,同時,使得整體外觀的完整性更高,生產良率亦提高。
因此,可藉由前述的電池單元20進行堆疊成電池芯40後,再利用金屬殼30來進行封裝(見第1A圖),根據堆疊組合的方式,可分為串聯、並聯與串並聯混合型態,首先,請參閱第3A圖,複數個電池單元20為同方向進行堆疊,換句話說,相同極性的集電層24皆朝上設置,使得下方的集電層25會與相鄰之電池單元20的集電層24直接接觸,因而依序電性相接而構成串聯型態的電池芯40來進行封裝。
接續請參閱第3B圖,複數個電池單元20為反方向進行堆疊,換句話說,相同極性的集電層24、25依序相互接觸,再配合極耳或是導電柄等來將相同極性的所有集電層24、25予以連接,而構成並聯型態的電池芯40來進行封裝。
如為串聯、並聯混合型態,請參閱第3C圖,串聯並聯型態可依據實際使用需求,譬如電容量、電壓大小等來加以調整,在此僅配合
圖式來說明,依據圖中顯示,電池單元20以三個為一組先進行並聯,並聯方式與前述第3圖相同,然後再藉由三個並聯的組來進行串聯,相同地,串聯方式與前述第2圖態樣相同,因而能構成串聯、並聯的混合型態。
因此,可根據需求來選擇所需要連接的型態(串聯、並聯或是串並聯混合)與數量,在此僅配合圖式予以舉例說明,請參閱第4A、4B圖,金屬殼30可包含有金屬上蓋31、金屬下蓋32、以及絕緣片33,藉由金屬上蓋31以及金屬下蓋32將前述電池芯40包覆於其內,再利用絕緣片33予以隔離,使得金屬上蓋31以及金屬下蓋32電性絕緣,防止金屬上蓋31以及金屬下蓋32因接觸而短路。在此需特別說明,金屬殼30的型態並不限定為圖中所繪示型態,再者,絕緣片33可採用為矽膠材質,除了絕緣外,更能進一步達到阻水的效果。
再者本新型之電池單元20為完整且獨立的模組使得電池單元20外(與金屬殼30之間)無需充填電解液或其他有機溶劑,再加上本新型之電池單元20最外側即為集電層24、25,因此能直接與金屬殼30(金屬上蓋31以及金屬下蓋32)直接接觸來構成電性連接,來將電力導引向外輸出。因此,能將電池芯40的電流路徑最大化,省去習知需要額外連接或拉線所衍生的問題。
接續請參照第4A、4B圖,每一電池單元20上皆具有監控端子50,一般來說監控端子50係與電池單元20電性連接,以進行電力狀況監控,同時金屬殼30內所設置的電路板模組34,監控端子50與電路板模組34電性連接,而能夠將偵測與監控的訊號傳遞至電路板模組,再藉由裝設於金屬殼30上的監控總埠35,監控總埠35與電路板模組34亦電性連接,而能
接受其所取得的針對每一個電池單元20之偵測與監控訊號,來向外輸出,提供系統性的監控,因而能對每一電池單元20進行電性監控,以避免電池過充過放而提升安全性。再者為了保護電路板模組34、監控總埠35,金屬殼30一側可更具有支撐側板36來提供額外的支撐性,以支撐電路板模組34、監控總埠35。
再者,金屬殼30上可更具有止逆閥37,其連通於金屬殼30內部,而可進行抽真空以隔絕氧氣與水氣,同時也可於金屬殼30內,也就是金屬殼30與電池芯40之間係充填有散熱劑或阻燃劑,來提昇散熱效率以維持電池性能,並能提升電池裝置的安全性。
綜上所述,本新型提出一種具獨立監控之金屬殼式電池裝置,利用獨立且完整模組的電池單元來進行串聯、並聯或是串並聯混合予以構成電池芯,並利用金屬殼進行封裝,電池芯直接以最外側的集電層與金屬殼進行接觸而構成電性連接,直接作為此電池模組的總電極(正極與負極),因而能達到電流路徑最大化的目的。再者,金屬殼內部具有電路板模組,配合每一電池單元設置有與電路板模組電性連接之監控端子,而可針對每一電池單元進行電性監控,以避免電池過充過放而提升安全性。
唯以上所述者,僅為本新型之較佳實施例而已,並非用來限定本新型實施之範圍。故即凡依本新型申請範圍所述之特徵及精神所為之均等變化或修飾,均應包括於本新型之申請專利範圍內。
20:電池單元
31:金屬上蓋
32:金屬下蓋
33:絕緣片
34:電路板模組
35:監控總埠
36:支撐側板
37:止逆閥
50:監控端子
Claims (10)
- 一種具獨立監控之金屬殼式電池裝置,係包含有:一電池芯,係藉由複數個電池單元相互堆疊形成串聯、並聯、或是串聯並聯混合的型態所構成,每一該電池單元包含有:兩集電層,係相互平行設置;一電化學系統,係設置於該兩集電層之間,該電化學系統包含有:兩活性材料層,分別設置並接觸於該兩集電層;以及一隔離層,設置於該兩活性材料層之間;以及一框膠,係設置於該兩集電層之間且圈繞於該電化學系統周圍;一金屬殼,藉以將該電池芯封裝於其內,且該電池芯直接接觸於該金屬殼構成電性連接;一電路板模組,設置於該金屬殼內,且鄰近於該電池芯;以及複數個監控端子,設置於該電池芯之該些電池單元,並與該電路板模組構成電性連接,而能將監控狀態傳輸至該電路板模組。
- 如請求項1所述之具獨立監控之金屬殼式電池裝置,其中該些活性材料層係含浸一電解質系統,該電解質系統係為膠 態、液態、固態電解液或其組合。
- 如請求項2所述之具獨立監控之金屬殼式電池裝置,其中該些電化學系統之該電解質系統係相互不流通,且相鄰之該些電化學系統僅具有電荷轉移而無進行電化學反應。
- 如請求項1所述之具獨立監控之金屬殼式電池裝置,其中該些電池單元係以不同極性之該集電層相互接觸來構成串聯。
- 如請求項1所述之具獨立監控之金屬殼式電池裝置,其中該些電池單元係以相同極性之該集電層相互接觸連接來構成並聯。
- 如請求項1所述之具獨立監控之金屬殼式電池裝置,其中該框膠係包含有一矽膠層以及該矽膠層兩側之二改質矽膠層。
- 如請求項1所述之具獨立監控之金屬殼式電池裝置,其中該金屬殼內係充填有一散熱劑或一阻燃劑。
- 如請求項1所述之具獨立監控之金屬殼式電池裝置,其中該金屬殼係包含有一金屬上蓋、一金屬下蓋、以及一絕緣片。
- 如請求項1所述之具獨立監控之金屬殼式電池裝置,更包含有一監控總埠,該監控總埠係電性連接於該電路板模組。
- 如請求項1所述之具獨立監控之金屬殼式電池裝置,更包含有一支撐側板。
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