TWM615887U - 類鈕扣電池模組及其電池裝置 - Google Patents
類鈕扣電池模組及其電池裝置 Download PDFInfo
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- TWM615887U TWM615887U TW110202880U TW110202880U TWM615887U TW M615887 U TWM615887 U TW M615887U TW 110202880 U TW110202880 U TW 110202880U TW 110202880 U TW110202880 U TW 110202880U TW M615887 U TWM615887 U TW M615887U
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- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
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- H01M4/02—Electrodes composed of, or comprising, active material
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Abstract
本新型提供一種類鈕扣電池模組及其電池裝置,其主要包含有一電池芯與一封裝此電池芯的金屬殼,上述的電池芯是由數個獨立且完整封裝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,上述的金屬殼包含有一上蓋與一下蓋,上蓋與下蓋兩者間是電性絕緣的且分別與該電池芯的相異極性端接觸構成一正極端與一負極端。
Description
本新型係關於一種電池單元,尤指一種利用完整且獨立封裝之電池單元構成電池芯,並利用金屬殼予以封裝的類鈕扣電池模組。
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,大多採用將單一電池單元於Z軸方向進行串聯、並聯或是串聯、並聯混合的方式構成垂直堆疊的電池芯,再利用水平導體將此垂直堆疊的電池芯來予以水平連接成所需的電池裝置。
前案如本申請人之TW107135860與TW107135859,這樣的連接架構,具有下列幾點缺失:
1.組配上較為不易,舉例來說,數個單一電芯堆疊組配對位上的偵測導致過程繁瑣與時間消耗;
2.當單一電芯發生問題時,難以即時替換,使得維修的困難度大幅提升。
有鑑於此,本新型係針對上述缺失,提出一種嶄新的類鈕扣電池模組及其電池裝置。
本新型之主要目的在於提供一種類鈕扣電池模組,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類鈕扣電池模組,可直接進行堆疊連接成所需的電池裝置,並配合圖案化導體層進行另一軸向的連接,使得組裝更為容易且易於監測與維修、替換。
本新型提出一種類鈕扣電池模組,其係包含有電池芯以及金屬殼,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;而金屬殼包含有上蓋與下蓋,可將電池芯封裝於其內,並且電池芯之最外側正極與負極集電層直接導引連接至金屬殼的上蓋與下蓋,作為整個類鈕扣電池模組之正極端與負極端,使電池芯的電流路徑最大化。
本新型所揭露之電池裝置,利用前述類鈕扣電池模組直接進行堆疊,並利用金屬殼之上蓋與下蓋直接電性連接,構成所需的電池裝置,具有組裝容易且易於監測與維修、替換等優點;另一方面,更可配合圖案化導體層進行另一軸向的連接,進行雙軸向之延伸。
再者,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:正極集電層
25:負極集電層
26:框膠
261:改質矽膠層
262:改質矽膠層
263:矽膠層
30:金屬殼
31:上蓋
32:下蓋
33:絕緣層
34:絕緣體
40:電池芯
41:正極並聯式導電柄
411:本體
412:延伸部
42:負極並聯式導電柄
421:本體
422:延伸部
50:絕緣片
60:類鈕扣電池模組
71:第一絕緣層
711:第一圖案化金屬層
72:第二絕緣層
721:第二圖案化金屬層
第1A圖係為本新型類鈕扣電池模組之電池單元的示意圖。
第1B圖係為本新型類鈕扣電池模組之電池單元的另一實施例示意圖。
第1C圖係為本新型類鈕扣電池模組之電池單元的分解示意圖。
第2A圖係為本新型類鈕扣電池模組之串聯型態示意圖。
第2B-2C圖係為本新型類鈕扣電池模組之端面絕緣型態示意圖。
第3圖係為本新型類鈕扣電池模組之並聯型態示意圖。
第4圖係為本新型類鈕扣電池模組之串聯並聯混合型態示意圖。
第5A、5B圖係為本新型類鈕扣電池模組之電池芯結合導電散熱柄之示意圖。
第6A、6B圖係為本新型類鈕扣電池模組結合為電池裝置之示意圖。
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。
本新型類鈕扣電池模組係採用具有完整且獨立封裝的電池單元20來供進行組配,因此首先針對具有完整且獨立封裝的電池單元20的部份來予以說明。舉例來說,請參閱第1A、1C圖,本新型之電池單元20包含有正極集電層24、負極集電層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、以及含浸或混練於該活性材料層22、23與隔離層21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,或者塗覆有陶瓷粉體的高分子材料基材或玻璃纖維材料基材。隔離層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。
電化學系統201包含有活性材料層22、23、一位於活性材料層22、23兩者間的隔離層21,以及含浸/混煉於活性材料層22、23中的電解質系統。電解質系統可為液態、膠態、固態電解質、或是其任意組合之混合電解質。活性材料層22、23藉由中間的隔離層21予以隔離並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正極集電層24、負極集電層25向外導出。而正極集電層24、負極集電層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、或者是高分子導電材料。
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,其係設置於正極集電層24、負極集電層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),同時用以黏著正極集電層24、負極集
電層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是直接採用正極集電層24、負極集電層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1B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(也就是正極集電層24、負極集電層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進行堆疊後,再利用金屬殼30來進行封裝,請參閱第2A圖,複數個電池單元20為同方向進行堆疊,換句話說,相同極性的正極集電層24皆朝上設置,使得下方的負極集電層25會與相鄰之電池單元20的正極集電層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。
金屬殼30包含有上蓋31、下蓋32、以及中間的絕緣層33,藉由上蓋31以及下蓋32將前述電池芯40包覆於其內,再利用中間的絕緣層33予以隔離絕緣,防止上蓋31以及下蓋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,絕緣層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。本新型之電池單元20為完整且獨立的模組,換句話說,電池單元20內的電解質系統因完整封裝
為獨立的模組,使其彼此間的電解質系統相互不接觸,使得電池單元20間無共用電解質,因此無電解質劣化的問題,也就是電池單元20外(與金屬殼30之間)無需充填共用的電解液,再加上本新型之電池單元20最外側即為正極集電層24、負極集電層25,因此能直接與金屬殼30(上蓋31以及下蓋32)直接接觸來構成電性連接(也就是說上蓋31與下蓋32分別與相異極性端電性連接),構成正極端與負極端,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。
另一方面,因電池單元20的端面亦有可能與金屬殼30(上蓋31以及下蓋32)接觸而形成短路,因此,請參閱第2B圖,可於金屬殼30的內側、堆疊之電池單元20兩側來設置有絕緣體41,避免電池單元20的端面接觸與金屬殼30內部產生不必要的接觸而形成短路。因為絕緣層33具絕緣性,如第2C圖所示,也可以直接將絕緣層33向內延伸,使其覆蓋於金屬殼30的內側、堆疊之電池單元20兩側,而可省去絕緣體41的設置。
接續請參閱第3圖,為並聯型態的封裝,複數個電池單元20為依序以反方向進行堆疊,換句話說,相同極性的正極集電層24、負極集電層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正極集電層24、負極集電層25予以連接,而構成並聯型態的電池芯40來進行封裝。其他封裝與電性接觸部份,則與前述實施例相同,在此不重複贅述。
如為串聯、並聯混合型態,請參閱第4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。
同樣的,採用並聯型態(見第3圖)或是串聯、並聯混合型態(見第4圖)也可以增設有譬如絕緣體34(見第2B圖)、或是將其絕緣層33向內延伸(如第2C圖)的設計,此部份內容與前述相同,不再重複贅述。且前述的金屬殼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。
另一方面,為了提高散熱效果,電池芯40可更包含有並聯式導電柄,請參閱第5A、5B圖,係包含有正極並聯式導電柄41與負極並聯式導電柄42,正極並聯式導電柄41包含有片狀本體411與數個片狀延伸部412、負極並聯式導電柄42包含有片狀本體421與數個片狀延伸部422,正極並聯式導電柄41的片狀延伸部412接觸於正極集電層24表面,負極並聯式導電柄42的片狀延伸部422接觸負極集電層25表面。
就此實施態樣而言,電池芯40之電池單元20為同方向進行堆疊,換句話說,相同極性的正極集電層24皆朝上設置,並與皆與正極並聯式導電柄41之延伸部412直接接觸來進行電性連接;相同的,另一極性的負極集電層25皆朝下並與負極並聯式導電柄42之延伸部422直接接觸來進行電性連接,也就是會呈現正極並聯式導電柄41之延伸部412與負極並聯式導電柄42之延伸部422交錯配置的型態,來構成並聯的連接態樣;因此,正極並聯式導電柄41與負極並聯式導電柄42皆為導電材料所構成。此時,為了避免位於中間的正極並聯式導電柄41之延伸部412與負極並聯式導電柄42之延伸部422相互接觸而形成短路,因此,可於兩者之間增設有絕緣片50來
加以隔絕;藉由此大面積的接觸方式,能有效將電池芯40作用所產生的熱導出,維持電池芯40的最佳效能。
實際應用上,為了達到足夠的電量與電壓,可將前述金屬殼30封裝的電池芯40所構成之類鈕扣電池模組60視為一個電池單體,再利用此單體來進行串聯、並聯或是串並聯混合連接來形成電池裝置,請參閱第6A圖,藉由前述第4圖所揭露之類鈕扣電池模組60結合具有第一圖案化導體層711的第一絕緣層71以及具有第二圖案化導體層721之第二絕緣層72來相對設置,也就是以第一圖案化導體層711與第二圖案化導體層721相對朝內的方式來設置,中間再供類鈕扣電池模組60予以配置,藉由類鈕扣電池模組60外側兩端的正極端與負極端來與第一圖案化導體層711、第二圖案化導體層721構成電性連接。
另外,也可於Z軸(垂直)相互串聯後,再進行X軸(水平)方向的延伸串聯,也就是形成二個以上相異垂直軸向的堆疊型態,如第6B圖所示,換句話說,類鈕扣電池模組60係以至少一個類鈕扣電池模組60為一個縱向群組,以形成數個縱向群組,此些縱向群組以橫向延伸的型態設置於第一絕緣層71與第二絕緣層72之間;如前所述,所採用的類鈕扣電池模組60並不限定僅能採用第4圖的態樣,亦可採用如第2、3圖或是其他任意串聯、並聯型態配置的類鈕扣電池模組60之態樣,同樣的,類鈕扣電池模組60所構成之電池裝置的堆疊連接也不僅限定為第6A、6B圖的態樣,其可任意進行堆疊連接、或是於任意方向進行延伸,此部份可參閱如本申請人之申請案如TW107135860、TW107135859、TW109203275等案件來進行3D方向的拓展。
綜上所述,本新型提出一種類鈕扣電池模組,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,來供金屬殼進行封裝,電池芯直接以最外側的集電層與金屬殼之上蓋與下蓋進行接觸而構成電性連接,直接作為此電池模組的總電極(正極端與負極端),因而能達到電流路徑最大化的目的。再者,本新型之類鈕扣電池模組所構成之電池裝置,可利用類鈕扣電池模組進行垂直方向的堆疊,再透過跨接個別垂直堆疊電池模組之圖案化導體層進行電性連接,單一電池模組是經過良率檢測的,因此在組配構成電池裝置時可以大幅降低偵測點施作工藝的難度,也減少組配時所需的工序與時間。再者,當單一電池模組發生問題時,可簡易、快速且便利地進行更換。
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
24:正極集電層
25:負極集電層
30:金屬殼
31:上蓋
32:下蓋
33:絕緣層
40:電池芯
60:類鈕扣電池模組
Claims (11)
- 一種類鈕扣電池模組,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:一正極集電層與一負極集電層,係相互平行設置;以及一電化學系統,係設置於該正極集電層與該負極集電層之間,該電化學系統包含有一電解質系統,其中該些電池單元彼此間的該電解質系統無相互接觸;以及一金屬殼,其包含有一上蓋與一下蓋,該上蓋與該下蓋間電性絕緣,該金屬殼將該電池芯封裝於其內,且該上蓋與該下蓋各與該電池芯的相異極性端電性連接,以分別形成一正極端與一負極端。
- 如請求項1所述之類鈕扣電池模組,其中該電解質系統係為膠態、液態、固態電解質或其組合。
- 如請求項2所述之類鈕扣電池模組,其中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所述之類鈕扣電池模組,其中該電化學系統包含有:兩活性材料層,分別設置並接觸於該正極集電層與該負極集電層; 一隔離層,設置於該兩活性材料層之間;以及一框膠,係設置於該正極集電層與該負極集電層之間且圈繞於該電化學系統周圍。
- 如請求項1所述之類鈕扣電池模組,其中該些電池單元係以不同極性之該集電層直接相互接觸來構成串聯。
- 如請求項1所述之類鈕扣電池模組,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所述之類鈕扣電池模組,其中該些電池單元係透過一正極並聯式導電柄與一負極並聯式導電柄進行電性連接,該正極並聯式導電柄與該負極並聯式導電柄各包含有一片狀本體與數個由該片狀本體延伸出的片狀延伸部,該正極並聯式導電柄的該片狀延伸部與該電池芯中的該正極集電層接觸,該負極並聯式導電柄的該片狀延伸部與該電池芯中的該負極集電層接觸,該正極並聯式導電柄的該片狀本體與該負極並聯式導電柄的該片狀本體各與該上蓋以及該下蓋電性連接。
- 如請求項1所述之類鈕扣電池模組,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所述之類鈕扣電池模組,其中該金屬殼係更包含有一用以將該上蓋與該下蓋電性絕緣的絕緣層。
- 一種電池裝置,其包含有數個由請求項第1項至第9項中任一項所述之類鈕扣電池模組,該些類鈕扣電池模組在 至少一垂直軸向堆疊,且在單一該垂直軸向上,該些類鈕扣電池模組彼此間是透過該上蓋與該下蓋直接電性連接。
- 如請求項10所述之電池裝置,其中當該些類鈕扣電池模組具有二個以上相異垂直軸向的堆疊型態時,更包含至少一圖案化導體層,將已垂直軸向堆疊的該些類鈕扣電池模組進行跨另一軸向電性連接。
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TW110202880U TWM615887U (zh) | 2021-03-18 | 2021-03-18 | 類鈕扣電池模組及其電池裝置 |
DE202022100065.4U DE202022100065U1 (de) | 2021-03-18 | 2022-01-04 | Knopfzellenbatterie-ähnliches Modul und Batterievorrichtung hierfür |
KR2020220000327U KR20220002302U (ko) | 2021-03-18 | 2022-01-27 | 유사 버튼형 배터리 모듈 및 그 배터리 장치 |
JP2022000353U JP3237010U (ja) | 2021-03-18 | 2022-02-08 | ボタン型電池モジュール及びその電池装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP4181254A1 (en) * | 2021-11-13 | 2023-05-17 | Ningde Amperex Technology Ltd. | Battery cell housing, battery cell, battery, and electric device |
WO2023169395A1 (zh) * | 2022-03-09 | 2023-09-14 | 陕西奥林波斯电力能源有限责任公司 | 一种大容量电池组 |
-
2021
- 2021-03-18 TW TW110202880U patent/TWM615887U/zh unknown
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2022
- 2022-01-04 DE DE202022100065.4U patent/DE202022100065U1/de active Active
- 2022-01-27 KR KR2020220000327U patent/KR20220002302U/ko unknown
- 2022-02-08 JP JP2022000353U patent/JP3237010U/ja active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4181254A1 (en) * | 2021-11-13 | 2023-05-17 | Ningde Amperex Technology Ltd. | Battery cell housing, battery cell, battery, and electric device |
WO2023169395A1 (zh) * | 2022-03-09 | 2023-09-14 | 陕西奥林波斯电力能源有限责任公司 | 一种大容量电池组 |
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KR20220002302U (ko) | 2022-09-27 |
DE202022100065U1 (de) | 2022-04-05 |
JP3237010U (ja) | 2022-04-05 |
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