WO2024251782A1 - Bloc-batterie rechargeable interchangeable pour un consommateur - Google Patents

Bloc-batterie rechargeable interchangeable pour un consommateur Download PDF

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Publication number
WO2024251782A1
WO2024251782A1 PCT/EP2024/065415 EP2024065415W WO2024251782A1 WO 2024251782 A1 WO2024251782 A1 WO 2024251782A1 EP 2024065415 W EP2024065415 W EP 2024065415W WO 2024251782 A1 WO2024251782 A1 WO 2024251782A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery pack
maximum
milliohms
battery cells
connection
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.)
Ceased
Application number
PCT/EP2024/065415
Other languages
German (de)
English (en)
Inventor
Jan Breitenbach
Florian Kneer
Andreas GONSER
Holger Wernerus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to EP24731894.2A priority Critical patent/EP4725074A1/fr
Publication of WO2024251782A1 publication Critical patent/WO2024251782A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H01M50/50—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
    • 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
    • H01M50/502—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
    • 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
    • H01M50/502—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
    • 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
    • H01M50/502—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
    • H01M50/512—Connection only in parallel
    • 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
    • H01M50/502—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
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • 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
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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
    • 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

Definitions

  • the present invention relates to a removable battery pack for a consumer, as well as a consumer, in particular a power tool.
  • Interchangeable battery packs are known for consumers such as power tools, which have a number of battery cells for storing electrical energy for operating the consumer.
  • the efficiency and operational reliability of such interchangeable battery packs usually depends on a variety of factors.
  • An electrical transmission path based on the electrical energy chemically stored inside the battery cells often has a particular influence. Due to the large number of components of the interchangeable battery pack, which are often connected to one another, and other requirements in terms of installation space and weight, there are often several loss factors that impair the efficiency of the battery pack.
  • the interchangeable battery pack according to the invention with the features of claim 1 is characterized by a particularly high performance.
  • higher power preferably a larger electrical current
  • heating of the interchangeable battery pack during operation can advantageously be reduced, whereby in particular the longevity, operational reliability and efficiency of the interchangeable battery pack can be increased.
  • an interchangeable battery pack for a consumer in particular for a power tool, comprising at least two battery cells, at least one cell connector, and a first contact element and a second contact element.
  • the two contact elements are designed for the electrical connection of the removable battery pack. This means that the electrical energy can be provided to other components of the consumer, for example an electric motor, at the two contact elements.
  • Each battery cell of the removable battery pack is electrically connected to the at least one cell connector by means of a connection.
  • the battery cells and the at least one cell connector and each connection are designed in such a way that the total AC internal resistance of the removable battery pack between the first contact element and the second contact element is a maximum of 40 milliohms.
  • An alternating current internal resistance is considered to be an AC internal resistance.
  • Such an AC internal resistance is preferably determined according to a standardized measuring method, preferably according to DIN EN IEC 61960.
  • the battery cells and the at least one cell connector and each connection of the removable battery pack can be designed such that a total DC internal resistance is a maximum of 12 milliohms, preferably a maximum of 9 milliohms, in particular a maximum of 7 milliohms.
  • a direct current internal resistance can be regarded as a DC internal resistance.
  • such a DC internal resistance is determined according to a standardized method, such as according to DIN EN IEC 61960.
  • a removable battery pack in which preferably all elements inside the removable battery pack involved in providing the electrical current are designed and preferably coordinated with one another in such a way that the total AC internal resistance is as low as possible, in detail a maximum of 40 milliohms.
  • This can preferably be made possible in a variety of ways, for example by providing battery cells with low internal resistance, by providing cell connectors with the lowest possible electrical resistance, and by connections that have optimal efficiency in power transmission.
  • the interchangeable battery pack according to the invention offers the advantage that an electrical energy storage device with particularly high performance can be provided for consumers, such as power tools. The fact that there is a particularly low AC internal resistance enables a particularly high power output from the interchangeable battery pack.
  • the battery cells and the at least one cell connector and each connection of the interchangeable battery pack are designed such that the total AC internal resistance of the interchangeable battery pack is a maximum of 30 milliohms, in particular a maximum of 21 milliohms. This makes it possible to provide a particularly powerful and efficient interchangeable battery pack.
  • a plurality of battery cells are electrically connected to one another in series by means of the at least one cell connector.
  • a plurality of battery cells are electrically connected to one another in parallel by means of the at least one cell connector.
  • the battery cells are electrically connected to one another in series.
  • the battery cells are electrically connected exclusively in series.
  • the battery cells are preferably connected to one another in a single layer.
  • such a configuration can also be referred to as a 5s1p configuration of the removable battery pack.
  • a removable battery pack with a A total voltage of 18 V is provided.
  • the battery cells and the at least one cell connector and all connections of the interchangeable battery pack are designed such that the total AC internal resistance is a maximum of 21 milliohms, preferably a maximum of 16 milliohms, in particular a maximum of 11 milliohms.
  • the battery cells are electrically connected to one another in series.
  • two battery cells are electrically connected to one another in parallel.
  • a configuration can also be referred to as a 5s2p configuration of the removable battery pack.
  • the battery cells and the at least one cell connector and all connections of the removable battery pack are designed such that the total AC internal resistance is a maximum of 12 milliohms, preferably a maximum of 9 milliohms, in particular a maximum of 6 milliohms.
  • the battery cells and the at least one cell connector and all connections of the removable battery pack are designed such that the total AC internal resistance is a maximum of 7 milliohms, preferably a maximum of 6 milliohms, in particular a maximum of 4 milliohms. This makes it possible to provide a particularly powerful removable battery pack.
  • the battery cells are particularly preferably designed as lithium-ion battery cells.
  • a design of the battery cells in a multi-tab configuration is particularly advantageous, that is to say in particular with a large number of tabs which form the electrical pole of the battery cell or are connected to it.
  • Such a multi-tab configuration of a lithium-ion battery cell offers the advantage of a particularly low internal resistance.
  • Such battery cells with a maximum AC internal resistance of 8 milliohms, preferably e milliohms, in particular 4 milliohms, are particularly advantageous. per battery cell. This makes it possible to provide a removable battery pack with a particularly low overall AC internal resistance and thus particularly high performance and efficiency.
  • the battery cells are cylindrical and are arranged adjacent to one another along a longitudinal axis and/or radially next to one another. This means that several battery cells can be arranged stacked in the axial direction. Alternatively or additionally, several battery cells can be arranged next to one another in a plane orthogonal to the longitudinal axis. This makes it possible to provide a flexible and compact structure for the interchangeable battery pack.
  • the battery cells are particularly preferably in 21700 format.
  • connection is particularly preferably a material connection, preferably a laser welded connection, or a resistance welded connection, or a bonded connection, or a soldered connection. This makes it possible to provide an electrically conductive connection between battery cells and cell connectors with low electrical resistance while being easy and cost-effective to manufacture.
  • connection preferably has several contact points per pole of each battery cell.
  • the battery cells are electrically connected to the cell connector at the contact points. This makes it possible to provide defined connection points between the cell connector and the battery cell, which has an advantageous effect on a mechanical connection between the cell connector and the battery cell, as well as on low electrical resistance and simple and cost-effective manufacture.
  • all contact points of the connection are arranged at at least a predetermined first distance from a center point of the respective pole of the corresponding battery cell.
  • each pole is located on an axial end face of the corresponding battery cell.
  • the center point corresponds to a center of the preferably circular end face.
  • a prohibition zone is defined which corresponds to an area with a radius corresponding to the first distance, within which none of the contact points are arranged.
  • the contact points are distributed widely across the cell cross-section. This allows for an optimal flow of current from the battery cell to the cell connector and thus a low contact resistance, which makes it particularly advantageous to enable the low AC internal resistance of the interchangeable battery pack.
  • the first distance at the positive pole is at least 2 mm, preferably at least 3 mm.
  • the first distance at the negative pole is at least 3 mm, in particular at least 4 mm.
  • this allows a greater distance between the contact point and the center point at the larger negative pole, i.e. a wider distribution of the contact point over the pole.
  • all contact points are arranged at at least a predetermined second distance from one another.
  • the second distance is preferably at least 2 mm, in particular at least 3 mm.
  • all of the contact points also have a predetermined minimum distance from one another in order to ensure a broad distribution of the contact points over the surface of the respective pole of the battery cell. This can also promote optimal current flow and low contact resistance.
  • the at least one cell connector is designed as a sheet metal, which preferably has a thickness of at least 0.1 mm, preferably of at least 0.2 mm, in particular a maximum of 0.5 mm, and preferably a cross-sectional area of at least 0.5 mm 2 , preferably at least 4 mm 2 , in particular a maximum of 15 mm 2 .
  • the sheet metal i.e. the cell connector, is particularly preferably made of copper or a copper alloy or of steel. This enables efficient current transmission through the cell connector to be provided in order to enable the low AC internal resistance.
  • the cell connector preferably has a contact region on which the contact points are arranged, and a base region which is connected to the contact region.
  • the contact region and the base region are preferably formed together as a one-piece component.
  • the base region is arranged at a predetermined third distance from the contact region with respect to the axial direction.
  • the base region and contact area are arranged offset from one another in the axial direction of the battery cell, in particular such that the contact area is arranged closer to the pole of the battery cell than the base area.
  • this can be provided by means of a bend between the base area and the contact area.
  • This makes it possible to provide a defined design with a particularly simple and cost-effective geometry of the cell connector, which reliably ensures electrical contact exclusively at the contact area. For example, this can also ensure a certain distance between the base area and the pole, so that unintentional contact with the pole can be avoided.
  • the invention leads to a consumer, in particular a power tool, comprising the described interchangeable battery pack.
  • the consumer comprises at least one electric motor, wherein the removable battery pack is configured to provide electrical energy for the at least one electric motor.
  • Figure 1 is a perspective view of a removable battery pack according to a first embodiment of the invention
  • FIG. 1 is a detailed view of the removable battery pack of Figure 1
  • Figure 3 is an enlarged detail of Figure 2
  • Figure 4 is a detailed view of an interchangeable battery pack according to a second embodiment of the invention.
  • Figure 1 shows a perspective view of a removable battery pack 1 according to a first embodiment of the invention.
  • Figures 2 and 3 show detailed views of the removable battery pack 1 of Figure 1.
  • the interchangeable battery pack 1 serves as an electrical energy storage device for a consumer (not shown), such as a power tool, preferably one that can be operated by hand. Preferably, at least one electric motor of the consumer can be supplied with the electrical energy stored in the interchangeable battery pack 1.
  • the interchangeable battery pack 1 can be detachably connected to a tool part of the consumer by means of a connection mechanism that is not described in more detail. This means that the interchangeable battery pack 1 can be replaced, for example, with an identical interchangeable battery pack 1.
  • An electrical connection between the removable battery pack 1 and the other components, such as the electric motor, of the consumer is made by means of contact elements 11, 12 on the removable battery pack 1.
  • a different electrical potential is present at the two contact elements 11, 12.
  • the interchangeable battery pack 1 further comprises several battery cells 2 and several cell connectors 4 (see Figure 2).
  • the battery cells 2 and cell connectors 4 are accommodated within a housing 50 (see Figure 1), which is provided for protection.
  • the battery cells 2 can also be held in position relative to one another by means of a cell holder 60.
  • the battery cells 2 are designed as cylindrical lithium-ion cells in the 21700 format. In the removable battery pack 1, all battery cells 2 are arranged parallel to one another, i.e. parallel to a longitudinal axis 15.
  • a plurality of battery cells 2 are electrically connected to one another by means of the cell connectors 4.
  • the cell connectors 4 are designed as copper sheets, which preferably have a thickness of at least 0.1 mm and in particular a cross-sectional area of at least 1 mm 2 .
  • the interchangeable battery pack 1 of the first embodiment comprises a total of 15 battery cells 2, which are electrically connected to one another by means of the cell connectors 4 in such a way as to provide a so-called 5s3p configuration. This means that five battery cells 2 are electrically connected to one another in series, and at the same time three battery cells 2 are electrically connected to one another in parallel.
  • the battery cells 2 are electrically connected to the two contact elements 11, 12 via the cell connectors 4.
  • the respective different poles 21, 31, namely positive pole 21 and negative pole 31, of the battery cells 2 are arranged on the two axial end faces of the battery cells 2.
  • Each pole 21, 31 is electrically connected to one of the cell connectors 4 by means of a connection 5.
  • Each connection 5 preferably has several resistance welded connections.
  • the cell connectors 4 are preferably designed such that they have a contact region 41 which is preferably circular and in particular concentric to the positive pole 21.
  • the cell connectors 4 at the positive pole 21 comprise a base region 42 which surrounds the contact region 41. With respect to the direction of the longitudinal axis 15, the contact region 41 is arranged closer to the positive pole 21 at a predetermined distance, for example of at least 0.5 mm, from the base region 42.
  • the corresponding connection 5 has several contact points 51, at which the corresponding pole 21, 31 of the battery cell is electrically connected to the cell connector 4.
  • a separate resistance welding connection is provided at each of the contact points 51.
  • exactly four contact points 51 are provided per pole 21, 31.
  • a different number of contact points 51 can also be provided, for example exactly two contact points 51.
  • the contact points 51 are arranged such that they are arranged at least at a predetermined first distance 52 from a center point 25 of the respective pole 21, 31 (see Figure 3).
  • the first distance 52 is preferably at least 3 mm at the positive pole 21.
  • a wider distribution of the contact points 51 can be made possible at the negative pole 31, so that the first distance 52 at the negative pole 31 is preferably at least 4 mm.
  • a prohibited zone is defined around the center point 25 of the respective pole 21, 31, within which none of the contact points 51 is arranged.
  • all contact points 51 are arranged at least a predetermined second distance 53 from each other.
  • the second distance 53 is at least 3 mm.
  • the contact points 51 By arranging the contact points 51 according to the predetermined distances 52, 53, the contact points 51 can be distributed as widely or as extensively as possible over the respective pole 21, 31. In particular, current can be tapped as widely as possible over the pole 21, 31, so that an optimal current flow from the battery cell 2 to the cell connector 4 can be provided with the lowest possible contact resistance.
  • the cell connectors 4 are slotted. This makes it possible to produce the connections 5 more easily by means of resistance welding. In particular, when using an alternative connection method, cell connectors 4 without a slot can also be provided.
  • the battery cells 2, the cell connectors 4 and all connections 5 are specially designed in such a way that the total AC internal resistance of the entire exchangeable battery pack 1 is a maximum of 7 milliohms.
  • the total AC internal resistance of the exchangeable battery pack 1 is defined between the first contact element 11 and the second contact element 12.
  • the exchangeable battery pack 1 can be provided with a particularly high performance.
  • a particularly high power output to other components of the consumer can be made possible, for example.
  • high power can be drawn from the removable battery pack 1, for example through larger currents.
  • the heating of the removable battery pack 1 can be kept low, which can also increase the service life of the removable battery pack 1.
  • FIG 4 shows a detailed view of a removable battery pack 1 according to a second embodiment of the invention.
  • the second embodiment essentially corresponds to the first embodiment of Figures 1 to 3, with the difference of an alternative number of battery cells 2.
  • the removable battery pack 1 comprises a total of five battery cells 2, with all battery cells 2 being electrically connected in series with one another by means of the cell connectors 4. This means that the removable battery pack 1 of the second embodiment is designed in a so-called 5s1p configuration.
  • the battery cells 2, the cell connectors 4, and all connections 5 are designed in such a way as to provide a total AC internal resistance of the interchangeable battery pack 1 of a maximum of 21 milliohms. This means that, for example, with a given number of battery cells 2 and/or a given geometric size, an optimal performance of the interchangeable battery pack 1 can be provided.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

L'invention concerne un bloc-batterie rechargeable interchangeable (1) pour un consommateur, en particulier pour un outil électrique, comprenant au moins deux cellules rechargeables (2), au moins un connecteur de cellule (4), et un premier élément de contact (11) et un second élément de contact (12) pour connecter électriquement le bloc-batterie rechargeable interchangeable (1), chaque cellule rechargeable (2) étant électriquement connectée audit connecteur de cellule (4) au moyen d'une connexion (5), et les cellules rechargeables (2) et ledit connecteur de cellule (4) et chaque connexion (5) étant configurés de telle sorte qu'une résistance interne CA totale du bloc-batterie rechargeable interchangeable (1) entre le premier élément de contact (11) et le second élément de contact (12) est d'au plus 40 milliohms.
PCT/EP2024/065415 2023-06-07 2024-06-05 Bloc-batterie rechargeable interchangeable pour un consommateur Ceased WO2024251782A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP24731894.2A EP4725074A1 (fr) 2023-06-07 2024-06-05 Bloc-batterie rechargeable interchangeable pour un consommateur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023205324.1A DE102023205324A1 (de) 2023-06-07 2023-06-07 Wechselakkupack für einen Verbraucher
DE102023205324.1 2023-06-07

Publications (1)

Publication Number Publication Date
WO2024251782A1 true WO2024251782A1 (fr) 2024-12-12

Family

ID=91465188

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/065415 Ceased WO2024251782A1 (fr) 2023-06-07 2024-06-05 Bloc-batterie rechargeable interchangeable pour un consommateur

Country Status (3)

Country Link
EP (1) EP4725074A1 (fr)
DE (1) DE102023205324A1 (fr)
WO (1) WO2024251782A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180366697A1 (en) * 2017-06-14 2018-12-20 Milwaukee Electric Tool Corporation Arrangements for inhibiting intrusion into battery pack electrical components
US20190044110A1 (en) * 2017-07-25 2019-02-07 Milwaukee Electric Tool Corporation High power battery-powered system
US20220231345A1 (en) * 2021-01-19 2022-07-21 Lg Energy Solution, Ltd. Battery, and battery pack and vehicle including the same
US20220384860A1 (en) * 2020-09-30 2022-12-01 Nanjing Chervon Industry Co., Ltd. Battery pack, power tool system, and charging system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015205200B4 (de) * 2015-03-23 2025-11-20 Robert Bosch Gmbh Akkupack für eine Handwerkzeugmaschine und Verfahren zur Herstellung einer stromleitenden Verbindung, vorzugsweise eines Zellverbinders eines Akkupacks für eine Handwerkzeugmaschine
DE102019128396A1 (de) * 2019-10-21 2021-04-22 instagrid GmbH Zentrierung für einen Zellverbinder in Batteriemodulen
DE102021125014A1 (de) * 2021-09-28 2023-03-30 Bayerische Motoren Werke Aktiengesellschaft Batteriezellengehäuse für eine Batteriezelle eines elektrischen Energiespeichers, Batteriezelle, elektrischer Energiespeicher sowie Verfahren

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180366697A1 (en) * 2017-06-14 2018-12-20 Milwaukee Electric Tool Corporation Arrangements for inhibiting intrusion into battery pack electrical components
US20190044110A1 (en) * 2017-07-25 2019-02-07 Milwaukee Electric Tool Corporation High power battery-powered system
US20220384860A1 (en) * 2020-09-30 2022-12-01 Nanjing Chervon Industry Co., Ltd. Battery pack, power tool system, and charging system
US20220231345A1 (en) * 2021-01-19 2022-07-21 Lg Energy Solution, Ltd. Battery, and battery pack and vehicle including the same

Also Published As

Publication number Publication date
DE102023205324A1 (de) 2024-12-12
EP4725074A1 (fr) 2026-04-15

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