SE546756C2 - A battery assembly - Google Patents

A battery assembly

Info

Publication number
SE546756C2
SE546756C2 SE2251433A SE2251433A SE546756C2 SE 546756 C2 SE546756 C2 SE 546756C2 SE 2251433 A SE2251433 A SE 2251433A SE 2251433 A SE2251433 A SE 2251433A SE 546756 C2 SE546756 C2 SE 546756C2
Authority
SE
Sweden
Prior art keywords
battery assembly
venting channel
foam
predetermined locations
battery
Prior art date
Application number
SE2251433A
Other languages
Swedish (sv)
Other versions
SE2251433A1 (en
Inventor
Csaba Dobi
Rodyn Gilharry
Original Assignee
Northvolt Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Northvolt Ab filed Critical Northvolt Ab
Priority to SE2251433A priority Critical patent/SE546756C2/en
Priority to EP23813374.8A priority patent/EP4690358A1/en
Priority to PCT/EP2023/083155 priority patent/WO2024120869A1/en
Publication of SE2251433A1 publication Critical patent/SE2251433A1/en
Publication of SE546756C2 publication Critical patent/SE546756C2/en

Links

Classifications

    • 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
    • H01M50/213—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
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • 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
    • H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
    • 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
    • H01M50/392—Arrangements for facilitating escape of gases with means for neutralising or absorbing electrolyte; with means for preventing leakage of electrolyte through vent holes
    • 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
    • H01M50/394—Gas-pervious parts or elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

A battery assembly (100) configured to receive a plurality of battery cells (101) at respective predetermined locations (102), wherein the battery assembly (100) comprises a plurality of vent apertures (103) located at said predetermined locations (102) and at least one venting channel (105, 106, 107) extending adjacent to at least a first subset of said predetermined locations (102) and wherein the vent apertures (103) located at the first subset of said predetermined locations (102) are configured to allow material ejected from a battery cell (101) located at a respective one of the predetermined locations (102) to exit therethrough and into the at least one venting channel (105, 106, 107), wherein the at least one venting channel (105, 106, 107) includes an open cell foam (110, 111, 112) at least adjacent the vent apertures (103) to receive said material that exits through said vent apertures (103).

Claims (14)

Claims
1. A battery assembly (100) configured to receive a plurality of battery cells (101) at respective predetermined locations (102), wherein the battery assembly (100) comprises a plurality of vent apertures (103) located at said predetermined locations (102) and at least one venting channel (105, 106, 107) extending adjacent to at least a first subset of said predetermined locations (102) and wherein the vent apertures (103) (103) located at the first subset of said predetermined locations (102) are configured to allow material ejected from a battery cell (101) located at a respective one of the predetermined locations (102) to exit therethrough and into the at least one venting channel (105, 106, 107), i *i ä' :àjgthe at least one venting channel (105, 106, 107) includes an open cell foam (110, 111, 112) at least adjacent the vent apertures (103) to receive said material that exits through said vent apertures (103) _
2. The battery assembly (100) of claim 1, comprising a plate---§'--Li:_-~'"* having a first surface (113) and a second surface (114) opposed the first surface (113), wherein the predetermined locations (102) are located over the first surface (113) of the plate----="~~f~~='ï*= extend through said plate»»~:§¥â¿=\. and the plurality of vent apertures (103) from the first surface (113) to the second surface (114) and wherein the at least one venting channel (105, 106, 107) extends along the second surface (114) of the
3. The battery assembly (100) of claim 1 or claim 2, wherein the venting channel (105, 106, 107) is only partly filled with said foam (110, 111, 112).
4. The battery assembly (100) of claim 3, wherein the open cell foam (110, 111, 112) is arranged in the venting channel (105, 106, 107) to provide a continuous path through the venting channel (105, 106, 107) that is absent of said foam (110, 111, 112).
5. The battery assembly (100) of claim 1 or claim 2, wherein the venting channel (105, 106, 107) is completely filled with said foam (110, 111, 112).
6. The battery assembly (100) of any preceding claim, wherein said foam (110, 111, 112) comprises Aluminium metal foam.
7. The battery assembly (100) of any one of claims 1 to 5, wherein the foam (110, 111, 112) comprises one of: a metal based foam, a polymer based foam, a composite based foam, a polyurethane based foam, a silicone based foam or an epoxy based foam.
8. The battery assembly (100) of claim 2, wherein the at least one venting channel (105, 106, 107) comprises a first wall (117) arranged opposite the and two side walls (118, 119) extending from the first wall (117) and arranged to abut and support the plate»§ï»i<&fšš\<;»}, wherein the foam (110, 111, 112) extends between the first wall (117) and the second surface (114) of the plate~»\=;ﻚèfš;ï=\<š=»}>»-to provide structural support to the plate»»~:}»2š.»~š3\<§»_š:.
9. The battery assembly (100) of claim 8, wherein the foam (110, 111, 112) is bonded to the second surface (114) of the
10. The battery assembly (100) of claim 8 or claim 9, wherein the plate ._ is of mica.
11. The battery assembly (100) of any preceding claim, comprising one or more separator walls configured to separate the plurality of battery cells (101) from one another when received by the battery assembly (100) and wherein each predetermined location (102) is associated with at least one vent aperture (103).
12. The battery assembly (100) of claim 2, wherein the battery assembly (100) comprises an extruded section that defines a plurality of venting channels (105, 106, 107) comprising at least a first venting channel (105) and a second venting channel (106), wherein the first venting channel (105) extends adjacent to the first subset of predetermined locations (102) at the second surface (114) of the and wherein the vent apertures (103) located at the first subset of 3said predetermined locations (102) are configured to allow the material ejected from the battery cells (101) exit therethrough and into the first venting channel; and wherein the second venting channel (106) extends adjacent to a second subset, different to the first subset, of said predetermined locations (102) at the second surface (114) of the and wherein the vent apertures (103) located at the second subset of said predetermined locations (102) are configured to allow the material ejected from the battery cells (101) at those second subset of said predetermined locations (102) to exit therethrough and into the second venting channel (106); and wherein the extruded section and the plate-~~í~~ili~_~å~*.l~~<ê~fj=- are provided with cooperating features to couple them together.
13. The battery assembly (100) of claim 12, comprising a plurality of side walls configured to couple to the extruded section and engage with the plurality of battery cells (101) received at the first surface (113).
14. A battery module or battery pack comprising: the battery assembly (100) of any preceding claim; a plurality of cylindrical battery cells (101) mounted in the predetermined locations (102); an enclosure of one or more parts to enclose said plurality of cylindrical battery cells (101).
SE2251433A 2022-12-07 2022-12-07 A battery assembly SE546756C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE2251433A SE546756C2 (en) 2022-12-07 2022-12-07 A battery assembly
EP23813374.8A EP4690358A1 (en) 2022-12-07 2023-11-27 A battery assembly
PCT/EP2023/083155 WO2024120869A1 (en) 2022-12-07 2023-11-27 A battery assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2251433A SE546756C2 (en) 2022-12-07 2022-12-07 A battery assembly

Publications (2)

Publication Number Publication Date
SE2251433A1 SE2251433A1 (en) 2024-06-08
SE546756C2 true SE546756C2 (en) 2025-02-18

Family

ID=88969721

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2251433A SE546756C2 (en) 2022-12-07 2022-12-07 A battery assembly

Country Status (3)

Country Link
EP (1) EP4690358A1 (en)
SE (1) SE546756C2 (en)
WO (1) WO2024120869A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT527499B1 (en) * 2024-03-18 2025-03-15 John Deere Electric Powertrain Llc Device for discharging hot gas from a battery cell
DE102024118190B3 (en) * 2024-06-27 2025-06-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Battery with flame-retardant area and flow area sealed therefrom and method for producing the same
EP4718604A1 (en) * 2024-09-30 2026-04-01 Huizhou Eve Power Co., Ltd Battery box and battery pack

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120028107A1 (en) * 2010-03-30 2012-02-02 Yasunari Sugita Battery pack
US20180212222A1 (en) * 2017-01-20 2018-07-26 Tesla Motors, Inc. Energy storage system
US20200212384A1 (en) * 2018-12-28 2020-07-02 Caterpillar Inc. Battery Packaging Assembly with Safety Features to Reduce Thermal Propagation
US10707462B1 (en) * 2019-08-28 2020-07-07 Manaflex, Llc Intracellular device for lithium ion batteries
EP3905377A1 (en) * 2018-12-29 2021-11-03 BYD Company Limited Power battery pack and vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143632A1 (en) * 2001-09-06 2003-03-27 Vb Autobatterie Gmbh Block battery with several interconnected electrochemical cells
JP5466906B2 (en) * 2009-09-18 2014-04-09 パナソニック株式会社 Battery module
DE102016102969B4 (en) * 2016-02-19 2022-03-31 Thomas Forchert Arrangement with a galvanic cell and common transport container

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120028107A1 (en) * 2010-03-30 2012-02-02 Yasunari Sugita Battery pack
US20180212222A1 (en) * 2017-01-20 2018-07-26 Tesla Motors, Inc. Energy storage system
US20200212384A1 (en) * 2018-12-28 2020-07-02 Caterpillar Inc. Battery Packaging Assembly with Safety Features to Reduce Thermal Propagation
EP3905377A1 (en) * 2018-12-29 2021-11-03 BYD Company Limited Power battery pack and vehicle
US10707462B1 (en) * 2019-08-28 2020-07-07 Manaflex, Llc Intracellular device for lithium ion batteries

Also Published As

Publication number Publication date
WO2024120869A1 (en) 2024-06-13
EP4690358A1 (en) 2026-02-11
SE2251433A1 (en) 2024-06-08

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