TWI810705B - 電池模組 - Google Patents

電池模組 Download PDF

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TWI810705B
TWI810705B TW110141687A TW110141687A TWI810705B TW I810705 B TWI810705 B TW I810705B TW 110141687 A TW110141687 A TW 110141687A TW 110141687 A TW110141687 A TW 110141687A TW I810705 B TWI810705 B TW I810705B
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insulating base
electrode
battery module
battery
tabs
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TW110141687A
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TW202320401A (zh
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柯玨宇
陳厚琦
顏嘉文
蔡明曉
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有量科技股份有限公司
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Priority to US17/697,833 priority patent/US11955664B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H—ELECTRICITY
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    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • H—ELECTRICITY
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    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
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    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • 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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    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • 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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
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    • H01M50/271—Lids or covers for the racks or secondary casings
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    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • H—ELECTRICITY
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    • H01M50/50—Current conducting connections for cells or batteries
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    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
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    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
    • H—ELECTRICITY
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    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
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    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
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    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/517—Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
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    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
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    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
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    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
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    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
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    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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    • H01M50/512—Connection only in parallel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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  • Chemical & Material Sciences (AREA)
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  • Electrochemistry (AREA)
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  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
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Abstract

本發明係關於一種電池模組，包括絕緣基座、一對電極及複數電池包，各電極設於絕緣基座，每一電極具有搭接部及外露於絕緣基座的接線部，每一電池包平順延伸有一對極耳，且至少一部份的該些極耳的末端分別貼附於相對應的各搭接部；藉此極耳不易產生扭曲變形，且電池模組能夠具有良好的導電效率及使用壽命並方便更換電池包。

Description

電池模組
本發明係有關於一種電池模組，尤指一種極耳不易產生扭曲變形，且具有良好的導電效率並方便更換電池包的電池模組。
鋰鐵電池由於能源轉換效率高、使用壽命長、穩定性高等優勢，逐漸被廣泛地應用於各式電子產品中，而為了輕量化避免在使用時鋰鐵電池內部產生壓力異常的問題，廠商大多會採用具有延展性的軟質袋體來作為鋰鐵電池的外包裝，即軟包電池(Laminate Polymer Battery or Polymer Battery)，並且能夠依照不同電力的需求與其它軟包電池串聯或並聯，從而構成一電池模組來作為電子裝置的電源。
一般的軟包電池在進行串聯或並聯時，通常是將各軟包電池的極耳和電極柱以銲錫銲接的方式來作連接。然而，各軟包電池的極耳為了和電極柱搭接，極耳便常會產生扭曲變形，且距離電極柱越外側的軟包電池極耳尤是，造成極耳扭曲變形處的電阻阻抗會大幅提升，使得極耳扭曲變形處的溫度增加，並且因為剪應力的產生而斷裂，從而導致軟包電池的導電效率不佳、使用壽命低、不易更換及維修困難等問題。
有鑑於此，本發明人遂針對上述現有技術的缺失，特潛心研究並配合學理的運用，盡力解決上述之問題點，即成為本發明人改良之目標。
本發明之主要目的，在於使極耳不易產生扭曲變形，且電池模組能夠具有良好的導電效率及使用壽命並方便更換電池包。
為了達成上述之目的，本發明提供一種電池模組，包括一絕緣基座、一對電極及複數電池包，各電極係設於絕緣基座，每一電極具有一搭接部及外露於絕緣基座的一接線部，每一電池包平順延伸有一對極耳，至少一部份的該些極耳的末端分別貼附於相對應的各搭接部。
本發明還具有以下功效：藉由接線部朝遠離搭接部的方向垂直延伸的螺柱，能夠方便使用者進行接線作業。透過串聯電極夠將不同電池包的正極耳和負極耳連接，從而讓二電池包達到串聯連接。藉由貼附在各電池包側邊及極耳外側的絕緣膠帶，能夠初步固定各電池包和極耳。透過串聯電極的轉折段凸設有穿出基板的檢測柱，能夠方便量測電壓及電流以在不拆卸電源模組的情況下得知電路是否正常。藉由裝設在電池包外的外殼作為保護，能夠避免電池包變形或是受損。
10:絕緣基座
11:基板
12:隔牆
121:鎖孔
20:電極
21:正極
22:負極
23:搭接部
24:接線部
241:螺柱
30:電池包
31:極耳
311:正極耳
312:負極耳
40:絕緣膠帶
50:串聯電極
51:銲接段
52:轉折段
521:檢測柱
60:外殼
61:開口
62:通孔
A:螺栓
圖1 係本發明絕緣基座和外殼之立體分解圖。
圖2 係本發明之立體分解圖。
圖3 係本發明之立體外觀圖。
圖4 係本發明之剖視圖。
圖5 係本發明之另一剖視圖。
有關本發明之詳細說明及技術內容，將配合圖式說明如下，然而所附圖式僅作為說明用途，並非用於侷限本發明。
本發明係提供一種電池模組，請參照圖1至圖5所示，其主要包括一絕緣基座10、一對電極20及複數電池包30。
絕緣基座10概呈長條狀，其可以為塑膠或其他具有良好絕緣性的材料，本發明不對此作限制。具體而言，絕緣基座10包括一基板11及設置於基板11底部中心的一隔牆12。
該對電極20包括一正極21及一負極22，且各電極20皆為銅片，但本發明不以此為限，只要係具有良好導電性的金屬片體即可。各電極20係直立設於絕緣基座10，且每一電極20具有一搭接部23及外露於絕緣基座10的一接線部24。具體而言，各搭接部23係嵌設在絕緣基座10，而各接線部24係凸出並外露在基板11的上方。於本實施例中，每一接線部24係自相對應的搭接部23垂直彎折，使各接線部24水平貼附在絕緣基座10的基板11外表面，但本發明不以此為限，例如各接線部24和對應的各搭接部23也可以為同一平面的無彎折片體而共同垂直於基板11。較佳地，各接線部24還可分別朝遠離各搭接部23的方向垂直延伸有一螺柱241，從而能夠方便使用者進行接線作業。又，於本實施例中，各搭接部23係位在隔牆12的左右兩側，但本發明不以此為限，例如各搭接部23也可以位於隔牆12內，或是各搭接部23也可以皆位於隔牆12的同一側，端看設計上的需求來作調整。
每一電池包30的頂部平順延伸有一對極耳31，至少一部份的該些極耳31的末端分別貼附且電性連接於相對應的各搭接部23。每一電池包30的該對極耳31包括一正極耳311及一負極耳312，且該些正極耳311中的至少一部份係對應貼附於正極21的搭接部23，該些負極耳312中的至少一部份係對應貼附於負極22的搭接部23。於本實施例中，各極耳31及各搭接部23的連接方式為銲接(如：表面貼焊技術SMT或雷射銲接)，但本發明不以此為限，只要能夠讓各極耳31及各搭接部23相互固定並且保持電性連接即可。藉此各極耳31皆為平順貼附便不易產生彎曲而能夠保有良好的導電效率，並且由於電阻阻抗低而不易產生過熱或是產生剪應力導致斷裂，從而能夠延長各電池包30的使用壽命，同時也可方便維修人員能夠快速進行解焊以進行更換或維修各電池包30。較佳地，本發明之電池模組還可包括複數絕緣膠帶40。各絕緣膠帶40係貼附於各電池包30的側邊及極耳31的外側，藉此能夠初步固定各電池包30及極耳31，並有效絕緣來避免其他物質影響各電池包30的導電效率。於本實施例中，絕緣膠帶40可以為耐高溫且阻燃等級為UL-V0以上的PI(KAPTON)膠帶，但本發明不以此為限。
以下針對電池模組中不同電池包30數量的連接方式來作說明：當電池包30的數量為二且為並聯連接時，其中一電池包30的正極耳311係對應正極21的搭接部23貼附作連接，而負極耳312則是對應負極22的搭接部23貼附作連接，且正極21和負極22的二搭接部23較佳地係位於隔牆12的同一側或隔牆12的內部而能夠讓電池包30保持縱向設置。而另一電池包30之正極耳311係貼附連接在先前的電池包30的正極耳311外側，負極耳312則是貼附連接在先前的電池包30的負極耳312外側。藉此各正極耳311皆和正極21電性連接，各負極耳312皆和負極22電性連接，從而讓二電池包30能夠達到並聯的效果。
當電池包30的數量為二且為串聯連接時，本發明之電池模組還可包括一串聯電極50。串聯電極50為具有良好導電性的金屬片體，其係設於絕緣基座10的隔牆12。具體而言，串聯電極50概呈閃電狀從而具有位在隔牆12左右兩側的二銲接段51及埋設在隔牆12內的一轉折段52。其中一電池包30的正極耳311和另一電池包30的負極耳312分別貼附連接在二銲接段51，其餘的另一負極耳312及另一正極耳311則分別貼附連接在負極22的搭接部23及正極21的搭接部23，藉此便能夠透過串聯電極50夠將二電池包30作串聯連接。於本實施例中，串聯電極50係由鋅、銅、銀、鉛或錫等金屬所混合製成的複合材料片，且各金屬的比例可依照不同需求的電流界值來做相對應的調整，因此本發明不對此做限制。藉此當電流在超過一定的界值時便能夠產生融斷機制，從而避免過大的電流影響其他電池包30以及整體的電路，並阻斷各電池包30間的串聯連接以防止其他電池包30亦產生被破壞的連鎖反應。
當電池包30的數量為四，且各電池包30係以兩兩為一組並聯後再作串聯時，大致上和二電池包30的串聯連接方式相同，差別僅在於多出的二電池包30係分別位於左右兩側，且多出的二電池包30的正極耳311和負極耳312係分別貼附連接在其相鄰的電池包30的正極耳311和負極耳312的外側。藉此多出的二電池包30便能夠分別和原先串聯的二電池包30作並聯連接，從而達到兩組並聯電池包30串聯連接的效果。
進一步說明，在串聯電極50的轉折段52凸出設置有穿出絕緣基座10基板11的一檢測柱521，藉此能夠方便使用者量測電壓及電流，從而在不拆卸電源模組的情況下便能夠得知各電池包30之間的電路是否正常，但本發明不特定限制檢測柱521的位置。又，本發明之電池模組還可包括一外殼60。外殼60為一中空殼體並且具有一開口61。絕緣基座10的基板11係封合於開口61而將基板11遠離隔牆12的外表面裸露在外殼60的外部，使得電池包30能夠容置在外殼60 內作為保護以避免電池包30變形或受損，同時各搭接部23也容置在外殼60內而僅有接線部24裸露在外以供使用者進行接線。較佳地，電池模組還可包括複數螺栓A。在絕緣基座10的隔牆12的前後兩側邊分別設有一鎖孔121，外殼60則對應各鎖孔121的位置分別設有一通孔62，各螺栓A係穿過對應的各通孔62後鎖固於各鎖孔121，藉此便能夠將外殼60和絕緣基座10兩者固定，並且方便維修人員快速將電池包取出維修或更換。
綜上所述，本發明已具有產業利用性、新穎性與進步性，完全符合專利申請要件，爰依專利法提出申請。當然，本發明還可有其他多種實施例，在不背離本發明精神及其實質的情況下，熟悉本領域的技術人員當可根據本發明演化出各種相應的改變和變形，但這些相應的改變和變形都應屬於本發明所申請專利的保護範圍。
10:絕緣基座
11:基板
12:隔牆
121:鎖孔
20:電極
21:正極
22:負極
23:搭接部
24:接線部
241:螺柱
30:電池包
31:極耳
311:正極耳
312:負極耳
50:串聯電極
51:銲接段
52:轉折段
521:檢測柱
60:外殼
61:開口
62:通孔
A:螺栓

Claims (10)

  1. 一種電池模組，包括：一絕緣基座；一對電極，設於該絕緣基座，每一該電極具有一搭接部及外露於該絕緣基座的一接線部；及複數電池包，平行各該搭接部配置，每一該電池包的頂部平順延伸有平行各該搭接部的一對極耳，至少一部份的該些極耳的末端分別貼附於相對應的各該搭接部。
  2. 如請求項1所述之電池模組，其中該些極耳的至少一部份分別銲接相對應的各該搭接部。
  3. 如請求項1所述之電池模組，其中各該電極的該搭接部嵌設在該絕緣基座，且各該電極的該接線部貼附該絕緣基座的外表面。
  4. 如請求項3所述之電池模組，其中各該接線部分別朝遠離該些搭接部的方向垂直延伸有一螺柱。
  5. 如請求項1所述之電池模組，其中該對電極包括一正極及一負極，每一該電池包的該對極耳包括一正極耳及一負極耳，該些正極耳中的至少一部份貼附於該正極的該搭接部，該些負極耳中的至少一部份貼附於該負極的該搭接部。
  6. 如請求項5所述之電池模組，其還包括一串聯電極，該串聯電極設於該絕緣基座，其中一該電池包的該正極耳和另一該電池包的該負極耳分別貼附於該串聯電極的兩端。
  7. 如請求項6所述之電池模組，其中該絕緣基座包括一基板及設於該基板底部的一隔牆，該串聯電極的兩端分別位於該隔牆的左右兩側。
  8. 如請求項7所述之電池模組，其中該串聯電極凸設有穿出該基板的一檢測柱。
  9. 如請求項1所述之電池模組，其還包括一外殼，該外殼具有一開口，該絕緣基座封合該開口而使該電池包容置在該外殼內。
  10. 如請求項9所述之電池模組，其還包括一螺栓，該絕緣基座的側邊設有一鎖孔，該外殼對應該鎖孔設有一通孔，該螺栓穿過該通孔後鎖固於該鎖孔。
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