DE102021110893A1 - Secondary cell for a lithium ion traction battery, corresponding battery and motor vehicle with such - Google Patents
Secondary cell for a lithium ion traction battery, corresponding battery and motor vehicle with such Download PDFInfo
- Publication number
- DE102021110893A1 DE102021110893A1 DE102021110893.4A DE102021110893A DE102021110893A1 DE 102021110893 A1 DE102021110893 A1 DE 102021110893A1 DE 102021110893 A DE102021110893 A DE 102021110893A DE 102021110893 A1 DE102021110893 A1 DE 102021110893A1
- Authority
- DE
- Germany
- Prior art keywords
- secondary cell
- cathode
- anode
- connection
- following features
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 9
- 238000007872 degassing Methods 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 3
- 239000000615 nonconductor Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910001386 lithium phosphate Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011245 gel electrolyte Substances 0.000 description 1
- 239000013071 indirect material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- BDKWOJYFHXPPPT-UHFFFAOYSA-N lithium dioxido(dioxo)manganese nickel(2+) Chemical compound [Mn](=O)(=O)([O-])[O-].[Ni+2].[Li+] BDKWOJYFHXPPPT-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- 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
- H01M50/20—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
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/358—External gas exhaust passages located on the battery cover or case
-
- 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
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
Die Erfindung stellt eine Sekundärzelle (10) für eine Lithiumionen-Traktionsbatterie mit den folgenden Merkmalen bereit: Die Sekundärzelle (10) enthält eine Anode (11), eine Kathode (12) und einen zwischen der Anode (11) und Kathode (12) angeordneten Separator (13); die Sekundärzelle (10) weist ein prismatisches Zellgehäuse (14) mit zwei kongruenten Grundflächen und mindestens drei Seitenflächen auf; und zumindest eine der Grundflächen umfasst ein integrales, mit der Anode (11) oder Kathode (12) elektrisch verbundenes Anschlusselement (15).Die Erfindung stellt ferner eine entsprechende Lithiumionen-Traktionsbatterie sowie ein entsprechendes Kraftfahrzeug bereit.The invention provides a secondary cell (10) for a lithium-ion traction battery, having the following features: The secondary cell (10) includes an anode (11), a cathode (12), and one disposed between the anode (11) and cathode (12). separator (13); the secondary cell (10) has a prismatic cell housing (14) with two congruent base surfaces and at least three side surfaces; and at least one of the bases includes an integral terminal (15) electrically connected to the anode (11) or cathode (12). The invention further provides a corresponding lithium ion traction battery and motor vehicle.
Description
Die vorliegende Erfindung betrifft eine Sekundärzelle für eine Lithiumionen-Traktionsbatterie. Die vorliegende Erfindung betrifft darüber hinaus eine entsprechende Lithiumionen-Traktionsbatterie sowie ein entsprechendes Kraftfahrzeug.The present invention relates to a secondary cell for a lithium ion traction battery. The present invention also relates to a corresponding lithium-ion traction battery and a corresponding motor vehicle.
Stand der TechnikState of the art
Einzelzellen von Lithiumionen-Akkumulatoren werden nach dem Stand der Technik üblicherweise mit prismatischem Gehäuse konfektioniert, in zylindrischer Bauform oder als sogenannte Pouch- oder Coffee-Bag-Zellen ausgeführt.According to the state of the art, individual cells of lithium-ion accumulators are usually assembled with a prismatic housing, in a cylindrical design or as so-called pouch or coffee-bag cells.
Jede der genannten Bauformen weist hierbei spezifische Vor- und Nachteile auf: Während sich Pouch-Zellen etwa durch einfachen Aufbau, praktische Verschaltung mittels außenliegender Anschlusszungen oder -laschen (tabs) sowie ihre Energiedichte auszeichnen, steht der angesichts ihrer Länge hohe Innenwiderstand einer schnellen Aufladung entgegen. Bei der alternativen Verwendung von Rundzellen ließe sich der Widerstand mittels durchgängiger Anschlüsse (continuous tabbing) zwar verringern, indes nur unter Inkaufnahme einer suboptimalen Raumausnutzung. Die Formstabilität prismatischer Zellen schließlich erweist sich als vorteilhaft für deren geometrische Integration; diesem Vorzug stehen jedoch auch hier Nachteile bezüglich Raumausbeute, Gewicht und elektrischem Widerstand vor allem im Bereich der Anschlusselemente (terminals) gegenüber. Zudem gilt eine beidseitige Kühlung bei herkömmlichen Zellen dieser Bauart als kaum umsetzbar.Each of the designs mentioned has specific advantages and disadvantages: while pouch cells are characterized by their simple structure, practical wiring using external connection tabs or tabs and their energy density, the high internal resistance due to their length prevents rapid charging . With the alternative use of round cells, the resistance could be reduced by means of continuous connections (continuous tabbing), but only at the expense of less than optimal use of space. Finally, the dimensional stability of prismatic cells proves advantageous for their geometric integration; However, this advantage is offset by disadvantages in terms of space yield, weight and electrical resistance, especially in the area of the connection elements (terminals). In addition, cooling on both sides of conventional cells of this type is considered to be hardly feasible.
Offenbarung der ErfindungDisclosure of Invention
Die Erfindung stellt eine Sekundärzelle für eine Lithiumionen-Traktionsbatterie, eine entsprechende Batterie sowie ein entsprechendes Fahrzeug gemäß den unabhängigen Ansprüchen bereit.The invention provides a secondary cell for a lithium ion traction battery, a corresponding battery and a corresponding vehicle according to the independent claims.
Die erfindungsgemäße Bauform zeichnet sich durch den einfachen Aufbau sowie die seitlichen Anschlussmöglichkeiten einer Pouch-Zelle beim geringen Widerstand einer Rundzelle aus, ohne jedoch die gattungsmäßige Stabilität - in Verbindung mit einem geeigneten Gehäusebecher etwa aus Aluminium - und Schnellladefähigkeit einer prismatischen Zelle einzubüßen.The design according to the invention is characterized by the simple structure and the lateral connection options of a pouch cell with the low resistance of a round cell, but without sacrificing the generic stability - in conjunction with a suitable housing cup made of aluminum, for example - and the rapid charging capability of a prismatic cell.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Patentansprüchen angegeben.Further advantageous refinements of the invention are specified in the dependent patent claims.
Figurenlistecharacter list
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.
-
1 zeigt die perspektivische Ansicht einer erfindungsgemäßen Sekundärzelle. -
2 zeigt eine Seitenansicht der Sekundärzelle von rechts. -
3 zeigt eine erste Variante der Anschlusskonfiguration. -
4 zeigt eine zweite Variante der Anschlusskonfiguration. -
5 zeigt eine dritte Variante der Anschlusskonfiguration. -
6 zeigt eine erste Variante des inneren Aufbaus. -
7 zeigt eine zweite Variante des inneren Aufbaus.
-
1 shows the perspective view of a secondary cell according to the invention. -
2 shows a side view of the secondary cell from the right. -
3 shows a first variant of the connection configuration. -
4 shows a second variant of the connection configuration. -
5 shows a third variant of the connection configuration. -
6 shows a first variant of the internal structure. -
7 shows a second variant of the internal structure.
Ausführungsformen der ErfindungEmbodiments of the invention
Die
In der dritten Variante gemäß
Auch hinsichtlich des inneren Aufbaus der Sekundärzelle (10) eröffnen sich verschiedene konstruktive Möglichkeiten. Bei der direkten Anschlussvariante der
Wie
Es versteht sich, dass unterschiedlichste Kombinationen direkter und indirekter Kontaktierung gebildet werden mögen, ohne den Rahmen der Erfindung zu verlassen. Verschiedene Ausführungsformen kommen für die elektrische Konfiguration in Betracht, etwa eine mit dem Gehäuse verbundene Kathode bei isolierter Anode, jeweils individuell isolierte Kathode und Anode bei potentialfreiem Gehäuse oder eine mit dem Gehäuse verbundene Anode bei isolierter Kathode.It goes without saying that a wide variety of combinations of direct and indirect contacting can be formed without departing from the scope of the invention. Various embodiments are contemplated for the electrical configuration, such as case-connected cathode with an isolated anode, individually isolated cathode and anode with a floating case, or case-connected anode with an isolated cathode.
Auch hinsichtlich des inneren Aufbaus der Sekundärzelle (10) sind vielfältige Abwandlungen denkbar, die verschiedene Schicht- und Wicklungskonfigurationen von Anode (11), Kathode (12) und Separator (13) einschließen. Insbesondere beim Designtyp eines Elektrodenwickels empfiehlt es sich in der Regel, die Elektrodenenden - etwa nach der Art einer Verbindungszunge - gebogen auszuführen, um eine größtmögliche Auflagefläche für Gehäuse, Zwischenstrukturen oder anderweitige Kontakten zu schaffen.Various modifications are also conceivable with regard to the internal structure of the secondary cell (10), which include different layer and winding configurations of the anode (11), cathode (12) and separator (13). In the design type of an electrode coil in particular, it is generally advisable to design the electrode ends bent—for example in the manner of a connecting tongue—in order to create the largest possible contact surface for the housing, intermediate structures or other contacts.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent Literature Cited
- EP 3152796 B1 [0004]EP 3152796 B1 [0004]
- EP 2140514 B1 [0005]EP 2140514 B1 [0005]
- US 2020235368 A1 [0006]US2020235368A1 [0006]
- US 2020144676 A1 [0006]US2020144676A1 [0006]
- US 2021074963 A1 [0006]US2021074963A1 [0006]
- WO 2009082957 A1 [0006]WO 2009082957 A1 [0006]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021110893.4A DE102021110893A1 (en) | 2021-04-28 | 2021-04-28 | Secondary cell for a lithium ion traction battery, corresponding battery and motor vehicle with such |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021110893.4A DE102021110893A1 (en) | 2021-04-28 | 2021-04-28 | Secondary cell for a lithium ion traction battery, corresponding battery and motor vehicle with such |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102021110893A1 true DE102021110893A1 (en) | 2022-11-03 |
Family
ID=83600953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102021110893.4A Pending DE102021110893A1 (en) | 2021-04-28 | 2021-04-28 | Secondary cell for a lithium ion traction battery, corresponding battery and motor vehicle with such |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102021110893A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009082957A1 (en) | 2007-12-25 | 2009-07-09 | Byd Company Limited | Battery system having interconnected battery packs each having multiple electrochemical storage cells |
EP2140514B1 (en) | 2007-03-26 | 2019-12-11 | Duracell U.S. Operations, Inc. | Lithium secondary batteries |
US20200144676A1 (en) | 2018-11-05 | 2020-05-07 | Tesla, Inc. | Cell with a tabless electrode |
EP3152796B1 (en) | 2014-06-05 | 2020-06-03 | Fraunhofer Gesellschaft zur Förderung der Angewand | Electrical energy storage element, method and apparatus for producing said electrical energy storage element |
US20200235368A1 (en) | 2018-08-02 | 2020-07-23 | Contemporary Amperex Technology Co., Limited | Electrode member, electrode assembly and secondary battery |
US20210074963A1 (en) | 2018-02-01 | 2021-03-11 | Contemporary Amperex Technology Co., Limited | Secondary battery |
-
2021
- 2021-04-28 DE DE102021110893.4A patent/DE102021110893A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2140514B1 (en) | 2007-03-26 | 2019-12-11 | Duracell U.S. Operations, Inc. | Lithium secondary batteries |
WO2009082957A1 (en) | 2007-12-25 | 2009-07-09 | Byd Company Limited | Battery system having interconnected battery packs each having multiple electrochemical storage cells |
EP3152796B1 (en) | 2014-06-05 | 2020-06-03 | Fraunhofer Gesellschaft zur Förderung der Angewand | Electrical energy storage element, method and apparatus for producing said electrical energy storage element |
US20210074963A1 (en) | 2018-02-01 | 2021-03-11 | Contemporary Amperex Technology Co., Limited | Secondary battery |
US20200235368A1 (en) | 2018-08-02 | 2020-07-23 | Contemporary Amperex Technology Co., Limited | Electrode member, electrode assembly and secondary battery |
US20200144676A1 (en) | 2018-11-05 | 2020-05-07 | Tesla, Inc. | Cell with a tabless electrode |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102019114726B4 (en) | CAPACITOR SUPPORTED SOLID-STATE BATTERY | |
DE60313313T2 (en) | ELECTROCHEMICAL BUNDLE | |
DE102010031543A1 (en) | Battery containing a bimetal | |
DE102021112444A1 (en) | battery cell | |
DE102016205160A1 (en) | battery cell | |
DE102020004807A1 (en) | End plates for bipolar batteries | |
DE102012018129A1 (en) | Single cell for a battery | |
DE102021110893A1 (en) | Secondary cell for a lithium ion traction battery, corresponding battery and motor vehicle with such | |
DE102010062873A1 (en) | Lithium-ion cell, lithium-ion battery and motor vehicle with a lithium-ion battery | |
DE102014222332A1 (en) | Layer structure for a galvanic element | |
DE102022105982A1 (en) | Method for assembling a battery | |
DE102021208601A1 (en) | battery | |
DE102015200685A1 (en) | Electrode winding for a galvanic element and method for its production | |
WO2019145542A1 (en) | Battery cell | |
DE102018220388A1 (en) | Battery system | |
DE102017210326A1 (en) | battery cell | |
DE102022105602A1 (en) | Battery with heat conductor | |
WO2016120129A1 (en) | Battery cell and battery system | |
DE102022111386A1 (en) | battery | |
DE102022103705A1 (en) | battery cell | |
DE102020117301A1 (en) | Electrode stack of a lithium cell | |
DE102023109322A1 (en) | BATTERY ASSEMBLY AND METHOD THEREOF | |
DE102021106975A1 (en) | battery cell | |
DE102019005474A1 (en) | Method for producing a battery cell for an electrical energy storage device and a battery cell | |
DE102021116742A1 (en) | Battery cell arrangement and method for manufacturing a battery cell arrangement |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R016 | Response to examination communication |