公开(公告)号：US20240035995A1

公开(公告)日：2024-02-01

申请号：US18022456

申请日：2021-08-19

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Sonia DANDL ,  Peng DONG ,  Edwin KNOBBE ,  Sebastian SCHARNER ,  Peng WU ,  Jianbo ZHANG

IPC: G01N27/02

CPC classification number: G01N27/026

Abstract: A method for diagnosing lithium plating in lithium ion batteries includes performing electrochemical impedance spectroscopy analysis on complete or undisassembled lithium-ion batteries under different temperatures.

公开(公告)号：US20210126280A1

公开(公告)日：2021-04-29

申请号：US17050290

申请日：2019-03-29

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Dave ANDRE ,  Christoph BAUER ,  Simon NUERNBERGER ,  Jakub REITER ,  Sebastian SCHARNER

IPC: H01M10/0525 ,  H01M10/654 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0567 ,  H01M10/42 ,  H01M10/625 ,  H01M10/615

Abstract: The invention relates to a method for operating a lithium ion battery (1) comprising at least one lithium ion cell and a heating device (2), wherein: the heating device (2) is designed to operate the lithium ion battery (1) in a temperature range between 5 and 90° C.; the lithium ion cell comprises an anode (4), a cathode (5), a separator (6), a current collector (7) and an electrolyte (3); the method comprises a step of operating the lithium ion battery (1) in a temperature range between 5 and 90° C.; and the electrolyte (3) contains: LiBOB as conducting salt and at least one selected from: PC and EC as solvent or LiFSI and/or LiDFOB as conducting salt and at least one glycol ether and/or DMC as solvent or LiFSI and/or LiTFSI and/or LiDFOB and/or LiTDI as conducting salt and at least one compound selected from: imidazolium compounds, pyrrolidinium compounds and piperidinium compounds as solvent.

公开(公告)号：US20190296293A1

公开(公告)日：2019-09-26

申请号：US16441069

申请日：2019-06-14

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Sebastian SCHARNER

IPC: H01M2/10 ,  H01M2/12

Abstract: A battery unit for a traction battery of a motor vehicle is provided. The battery unit includes at least two battery cells arranged adjacent to one another, which each include at least one venting unit for venting the cell housing thereof. The venting units are arranged on sides of the battery cells that are facing each other, and at least two shield units are arranged between the sides of the battery cells that face each other and at a distance from one another. Each shield unit includes a shield wall having at least one opening and at least one closure element. The opening of each shield wall is arranged aligned with the venting unit of the battery cell arranged closest to this shield wall in each case. The closure element, in a closing position, in which the closure element closes the opening, is arranged fully against the shield wall and in an open position, in which the closure element at least partially reveals the opening, is at least partially separated from the shield wall. The closure element can be transferred from the closing position into the open position by the action thereon of a force directed in the direction of the other shield unit.

公开(公告)号：US20250055051A1

公开(公告)日：2025-02-13

申请号：US18717480

申请日：2022-11-23

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Alexander ADAM ,  Roland JUNG ,  Sebastian SCHARNER ,  Thomas WOEHRLE

IPC: H01M10/52 ,  H01M10/0567 ,  H01M10/48 ,  H01M50/204 ,  H01M50/673

Abstract: A battery storage device includes a storage housing and at least one battery cell which is arranged in the interior of the storage housing and contains an electrolyte based on sulfur dioxide. The battery storage device has a safety apparatus with a metering device which includes a foam-forming additive. The metering device is configured to produce a foam from the foam-forming additive in order to neutralize the electrolyte, and to release the foam in the interior of the storage housing.

公开(公告)号：US20190229383A1

公开(公告)日：2019-07-25

申请号：US16374843

申请日：2019-04-04

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Juergen HILDINGER ,  Sebastian SCHARNER

IPC: H01M10/6555 ,  H01M10/613 ,  H01M10/6567 ,  H01M2/10 ,  H01M10/625

Abstract: An energy store has a plurality of electric energy storage cells, which are connected electrically in series or in parallel and are combined to form an energy storage module. Interspaces are formed between the energy storage cells and into which coolants or refrigerants can be introduced. In each case, side surfaces of the energy storage cells that bound the interspaces are provided with a regular pattern, which is formed in the shape of an elevation or depression with respect to the remaining surface of the relevant side surface.

公开(公告)号：US20250030072A1

公开(公告)日：2025-01-23

申请号：US18715179

申请日：2022-11-23

Applicant: Bayerische Motoren Werke AKtiengesellschaft

Inventor： Alexander ADAM ,  Roland JUNG ,  Sebastian SCHARNER ,  Thomas WOEHRLE

IPC: H01M10/52 ,  H01M10/42 ,  H01M10/48 ,  H01M50/204 ,  H01M50/673

Abstract: A battery bank includes a bank housing and at least one battery cell, which is arranged within the bank housing and contains a sulphur-dioxide-based electrolyte. The battery bank has a safety apparatus with a metering device, which includes an additive for neutralizing the electrolyte and is configured to release the additive within the bank housing.

公开(公告)号：US20240332623A1

公开(公告)日：2024-10-03

申请号：US18580245

申请日：2022-07-13

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Alexander ADAM ,  Roland JUNG ,  Juliane KLUGE ,  Peter LAMP ,  Arianna MORETTI ,  Sebastian SCHARNER ,  Thomas WOEHRLE

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0568 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/002

Abstract: A liquid electrolyte composition for an electrochemical cell is provided. The liquid electrolyte composition includes the following components: (A) sulfur dioxide; (B) at least one salt. The salt containing an anionic complex with at least one bidentate ligand, and the salt corresponds to formula (I) or formula (II).




M is a metal cation selected from the group consisting of alkali metals, alkaline earth metals, and metals from group 12 in the periodic table, m represents 1 or 2, Z is a central ion selected from among the group consisting of aluminum and boron. R1 and R2 each represents a monovalent hydrocarbon group; L1, L2 and L3 each independently represents an aliphatic or aromatic bridge group, the bridge group along with the central ion Z and with two oxygen atoms bound to the central ion Z and to the bridge group forming a ring.

公开(公告)号：US20190237833A1

公开(公告)日：2019-08-01

申请号：US16375020

申请日：2019-04-04

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Christian KULP ,  Sebastian SCHARNER ,  Benjamin WEBER

IPC: H01M10/6557 ,  H01M10/625 ,  H01M10/613 ,  H01M10/6554 ,  H01M10/6567 ,  H01M10/63

CPC classification number: H01M10/6557 ,  H01M10/486 ,  H01M10/613 ,  H01M10/625 ,  H01M10/63 ,  H01M10/647 ,  H01M10/6554 ,  H01M10/6567 ,  H01M10/6568 ,  H01M2200/10 ,  H01M2220/20

Abstract: An energy store has a plurality of electrical energy storage cells, which are connected electrically in series or parallel and are combined to form an energy storage module. Cooling plates are arranged between the energy storage cells and into which coolant or refrigerant can be introduced. A plurality of emergency switching devices are provided, each of which is associated with an energy storage cell and one or two cooling plates. The emergency switching devices allow the coolant or refrigerant to flow into the associated cooling plates only if a temperature of the associated energy storage cell exceeds a defined limit temperature.

公开(公告)号：US20190123396A1

公开(公告)日：2019-04-25

申请号：US16219431

申请日：2018-12-13

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Ann-Christin GENTSCHEV ,  Holger HAIN ,  Sebastian SCHARNER ,  Barbara STIASZNY

IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

Abstract: A lithium ion battery is provided having at least an electrolyte that has a solvent and, dissolved therein, a conducting salt containing lithium ions; and also has one or more safety means which increase the safety of the battery if the mode of functioning of the battery is impaired by an incident.

公开(公告)号：US20170317338A1

公开(公告)日：2017-11-02

申请号：US15654008

申请日：2017-07-19

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Thomas WOEHRLE ,  Matthias TSCHECH ,  Thomas HOEFLER ,  Sung-Jin KIM ,  Sebastian SCHARNER ,  Jens VETTER ,  Jan-Oliver ROTH ,  Tobias ZEILINGER ,  Matthias WAGNER

IPC: H01M4/36 ,  H01M4/66 ,  H01M4/139 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/362 ,  H01M4/0402 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/139 ,  H01M4/366 ,  H01M4/66 ,  H01M10/0525 ,  H01M2004/021

Abstract: A composite electrode is provided having a collector, the collector is coated with an electrode composition containing an active electrode material, a binding agent, and a conductivity additive such as conductive carbon black. The electrode composition has a concentration gradient along the direction of the electrode thickness in respect of the active electrode material and the conductivity additive, with the concentration gradient of the active electrode material increasing toward the collector, and the concentration gradient of the conductivity additive and the binder decreasing toward the collector. Two different methods of producing the composite electrode are also provided. A lithium-ion battery is further provided which includes a composite electrode having a collector, the collector is coated with an electrode composition containing an active electrode material, a binding agent, and a conductivity additive.