SE546645C2 - Top lid venting battery module - Google Patents

Top lid venting battery module

Info

Publication number
SE546645C2
SE546645C2 SE2250902A SE2250902A SE546645C2 SE 546645 C2 SE546645 C2 SE 546645C2 SE 2250902 A SE2250902 A SE 2250902A SE 2250902 A SE2250902 A SE 2250902A SE 546645 C2 SE546645 C2 SE 546645C2
Authority
SE
Sweden
Prior art keywords
protective sheet
battery module
failure
module according
venting channel
Prior art date
Application number
SE2250902A
Other languages
Swedish (sv)
Other versions
SE2250902A1 (en
Inventor
Agustin Almada
Anne-Sophie Debruyne
Anneke Swierstra
Kilian Menzl
Tomas Willem Verhallen
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 SE2250902A priority Critical patent/SE546645C2/en
Priority to PCT/EP2023/069335 priority patent/WO2024013238A1/en
Priority to EP23742228.2A priority patent/EP4555577A1/en
Publication of SE2250902A1 publication Critical patent/SE2250902A1/en
Publication of SE546645C2 publication Critical patent/SE546645C2/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
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical cells
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch 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
    • H01M50/204—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
    • H01M50/204—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
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
    • 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
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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
    • H01M50/375—Vent means sensitive to or responsive to temperature
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical casing
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • 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)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

Abstract A battery module (100, 300, 401, 402) comprising a plurality of secondary cells (110, 310, 410, 510), each secondary cell of the plurality of secondary cells (110, 310, 410, 510) having a casing (111) and a failure vent (112, 312, 412, 413, 512, 513) in the casing (111) for venting gases (480, 580) upon thermal failure of the secondary cell. The battery module (100, 300, 401, 402) further comprises a protective sheet (120, 220, 320, 420) extending above the plurality of secondary cells (110, 310, 410, 510) and arranged to cover the failure vents (112, 312, 412, 413, 512, 513) as well as a top cover (130, 230, 330, 430) configured to define a venting channel (470, 570) for guiding the vented gases (480, 580) away from the secondary cell. The protective sheet (120, 220, 320, 420) is configured to assume a first state (321, 421) in which it forms a barrier between the failure vent and the venting channel (470, 570), and a second state (322, 422) in which it enables passage of the vented gases (480, 580) from the failure vent to the venting channel (470, 570).

Claims (10)

Claims
1. A battery module (1 300,“401, 402) comprising: a plurality of secondary cells (110, 310, 410, 510), each secondary cell of the plurality of secondary cells having a casing (111) and a failure vent (112, 312, 412, 413, 512, 513) in the casing for venting gases (480, 580) upon thermal failure of the secondary cell; a protective sheet (120, 220, 320, 420) extending above the plurality of secondary cells and arranged to cover the failure vents; and a top cover (130, 230, 330, 430) configured to define a venting channel (470, 570) for guiding the vented gases away from the cell; wherein the protective sheet is configured to assume a first state (321, 421) in which it forms a barrier between the failure vent and the venting channel, and a second state (322, 422) in which it enables passage of the vented gases from the failure vent to the venting channel; wherein the protective sheet is configured to transition from the first state to the second state in response to opening of the failure vent; ...fl-the top cover is configured to secure the protective sheet against the plurality of secondary cells to thereby form at least partly sealed pockets above the failure vents.
2. The battery module according to claim 1, wherein the protective sheet is configured to rupture in response to the vented gases exerting a pressure, on the protective sheet, exceeding a predetermined threshold.
3. The battery module according to claim 2, wherein the protective sheet is formed of a metal foil.
4. The battery module according to claim 1 or 2, wherein the protective sheet is configured to break in response to the vented gases heating the protective sheet to a temperature exceeding a predetermined threshold.
5. The battery module according to claim 2 or 4, wherein the protective sheet is formed of a polymeric material.
6. The battery module according to any of the preceding claims, wherein the top cover comprises a plurality of perforations (135, 235, 335) allowing the vented gases to pass therethrough.
7. The battery module according to any of the preceding claims, wherein the venting channel is configured to guide the vented gases to a lateral side of the module.
8. The battery module according to any of the preceding claims, further comprising a support plate (140, 440, 540) arranged above the top cover and configured to at least partly define the venting channel.
9. The battery module according to claim 8, wherein the support plate is further configured to support a neighboring module (501, 502, 503) stacked on top of the module.
10. according to any of the preceding claims. A battery pack (500) comprising a stack of a plurality battery modules.
SE2250902A 2022-07-13 2022-07-13 Top lid venting battery module SE546645C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE2250902A SE546645C2 (en) 2022-07-13 2022-07-13 Top lid venting battery module
PCT/EP2023/069335 WO2024013238A1 (en) 2022-07-13 2023-07-12 Top lid venting battery module
EP23742228.2A EP4555577A1 (en) 2022-07-13 2023-07-12 Top lid venting battery module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2250902A SE546645C2 (en) 2022-07-13 2022-07-13 Top lid venting battery module

Publications (2)

Publication Number Publication Date
SE2250902A1 SE2250902A1 (en) 2024-01-14
SE546645C2 true SE546645C2 (en) 2025-01-07

Family

ID=87377880

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2250902A SE546645C2 (en) 2022-07-13 2022-07-13 Top lid venting battery module

Country Status (3)

Country Link
EP (1) EP4555577A1 (en)
SE (1) SE546645C2 (en)
WO (1) WO2024013238A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4606626A1 (en) * 2024-02-22 2025-08-27 Volvo Truck Corporation Battery module with gas venting channel
EP4641784A1 (en) * 2024-04-26 2025-10-29 Samsung SDI Co., Ltd. Battery system including improved cell cover
CN118610653B (en) * 2024-07-01 2025-03-04 晶硕光电科技(山东)有限公司 A fast heat dissipation type lithium battery
DE102024130957A1 (en) 2024-10-24 2026-04-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Battery module housing for a traction battery of an electrically or partially electrically powered motor vehicle, as well as motor vehicles with such a battery
DE102024132251A1 (en) 2024-11-06 2026-05-07 Audi Aktiengesellschaft Battery arrangement with improved sealing properties and motor vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2475028A1 (en) * 2009-09-18 2012-07-11 Panasonic Corporation Battery module
US20210050573A1 (en) * 2019-03-06 2021-02-18 Lg Chem, Ltd. Battery module having structure capable of preventing inflow of air into module when thermal runaway occurs and battery pack including same
DE102020113086A1 (en) * 2020-05-14 2021-11-18 Kautex Textron Gmbh & Co. Kg Traction battery having a guide means for a fluid volume flow and a motor vehicle
EP3916833A1 (en) * 2019-01-25 2021-12-01 SANYO Electric Co., Ltd. Battery pack
FR3114917A1 (en) * 2020-10-06 2022-04-08 Commissariat A L'energie Atomique Et Aux Energies Alternatives battery case

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9083029B2 (en) * 2009-12-23 2015-07-14 Samsung Sdi Co., Ltd. Battery pack
TWI890834B (en) * 2020-08-04 2025-07-21 南韓商Ｌｇ新能源股份有限公司 Battery module, battery pack comprising the same, and vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2475028A1 (en) * 2009-09-18 2012-07-11 Panasonic Corporation Battery module
EP3916833A1 (en) * 2019-01-25 2021-12-01 SANYO Electric Co., Ltd. Battery pack
US20210050573A1 (en) * 2019-03-06 2021-02-18 Lg Chem, Ltd. Battery module having structure capable of preventing inflow of air into module when thermal runaway occurs and battery pack including same
DE102020113086A1 (en) * 2020-05-14 2021-11-18 Kautex Textron Gmbh & Co. Kg Traction battery having a guide means for a fluid volume flow and a motor vehicle
FR3114917A1 (en) * 2020-10-06 2022-04-08 Commissariat A L'energie Atomique Et Aux Energies Alternatives battery case

Also Published As

Publication number Publication date
SE2250902A1 (en) 2024-01-14
WO2024013238A1 (en) 2024-01-18
EP4555577A1 (en) 2025-05-21

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