公开(公告)号：US20190214629A1

公开(公告)日：2019-07-11

申请号：US16353593

申请日：2019-03-14

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Dave ANDRE ,  Simon NUERNBERGER ,  Jan-Oliver ROTH ,  Saskia SCHNEIDER ,  Dennis SCHUENEMANN ,  Barbara STIASZNY ,  Christoph STINNER ,  Nikolaos TSIOUVARAS ,  Thomas WOEHRLE ,  Tobias ZEILINGER ,  Sandra ZUGMANN

IPC: H01M4/04 ,  H01M4/62 ,  H01M4/38 ,  H01M4/134

CPC classification number: H01M4/0471 ,  H01M4/13 ,  H01M4/131 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/382 ,  H01M4/386 ,  H01M4/485 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/583 ,  H01M4/62 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0562 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: A sintered electrode having a sintered composite material is provided. The composite material contains (A) active-material particles, (B) solid-state electrolyte particles from an inorganic lithium ion conductor, (C) a particulate conductivity additive from an electrically conductive material and (D) a fibrous material, with weight proportions N(A) to N(D) of components (A) to (D) in the composite material satisfy the following: N (A)>N (B)>N (C), N (D). A solid-state lithium-ion battery containing such sintered electrode is also provided.

公开(公告)号：US20190027735A1

公开(公告)日：2019-01-24

申请号：US16138051

申请日：2018-09-21

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Rainer STERN ,  Stefan ROESSLER ,  Tobias ZEILINGER

IPC: H01M2/34

Abstract: A cell for an electrical energy store is provided, including a cell housing within which there is arranged an electrode and on the outer side of which there is arranged a terminal which is galvanically connected to the electrode, wherein an electrical securing element is connected in a current path between the terminal and the electrode for the purposes of galvanic separation of the electrode and of the terminal. The cell is characterized by having the securing element arranged outside the cell housing. In this way, it is possible in a simple manner for the state of charge of the cell to be checked, and also for the cell to be discharged, from the outside.

公开(公告)号：US20190165423A1

公开(公告)日：2019-05-30

申请号：US16262099

申请日：2019-01-30

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Dave ANDRE ,  Simon NUERNBERGER ,  Jan-Oliver ROTH ,  Saskia SCHNEIDER ,  Dennis SCHUENEMANN ,  Barbara STIASZNY ,  Christoph STINNER ,  Nikolaos TSIOUVARAS ,  Thomas WOEHRLE ,  Tobias ZEILINGER ,  Sandra ZUGMANN

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M4/40 ,  H01M4/36 ,  H01M4/38 ,  H01M4/04

Abstract: A method produces an electrochemical cell for a solid-state battery having a negative electrode, a positive electrode and a lithium-ion-conducting solid electrolyte arranged between the negative electrode and the positive electrode. The negative electrode has a layer of metallic lithium which directly adjoins the solid electrolyte. In order to produce the electrochemical cell, the layer of metallic lithium is heated until it softens before being joined together with the solid electrolyte. An electrochemical cell includes the negative electrode with a layer of metallic lithium which directly adjoins the solid electrolyte, and a layer of a lithium-metal alloy on the layer of metallic lithium.

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.

公开(公告)号：US20190140223A1

公开(公告)日：2019-05-09

申请号：US16240873

申请日：2019-01-07

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Tobias ZEILINGER ,  Ruediger DAUB ,  Nikolaos TSIOUVARAS ,  Juergen HEROLD ,  Christian SINGER

IPC: H01M2/04 ,  H01M2/08

Abstract: A method for applying a rupture element to a housing part of a battery cell, more particularly to a housing part provided for sealing a battery cell, includes the following steps: providing the housing part, wherein the housing part has an inner side facing the interior of the battery cell and an outer side facing the exterior of the battery cell. A hole is provided in the housing part, through which in the event of a malfunction, in which pressure in the battery cell reaches an inadmissably high level, pressure can escape into the surrounding area. A plate-shaped rupture element is provided, which is at least slightly larger than the hole. The plate-shaped rupture element is applied to the hole from the outer side such that it fully covers the hole and an edge region of the plate-shaped rupture element is joined all around to an edge region of the housing part, which extends around the hole, such that the plate-shaped rupture element fluidically seals the hole.

公开(公告)号：US20170062776A1

公开(公告)日：2017-03-02

申请号：US15288197

申请日：2016-10-07

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Thomas WOEHRLE ,  Tobias ZEILINGER ,  Hideki OGIHARA

IPC: H01M2/02 ,  B29C63/04 ,  H01M10/0587 ,  H01M10/0525 ,  H01M10/0583

CPC classification number: H01M2/0267 ,  B29C63/04 ,  B29K2023/06 ,  B29K2067/00 ,  B29K2105/0097 ,  B29L2031/3468 ,  H01M2/02 ,  H01M2/0237 ,  H01M2/0257 ,  H01M2/0262 ,  H01M2/028 ,  H01M2/0285 ,  H01M2/0287 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/0583 ,  H01M10/0587 ,  H01M2220/20

Abstract: A method for the at least partial production of an electrical energy storage cell includes providing the electrode/separator. arrangement, providing a plastics foil of self-adhesive form, and applying the self-adhesive plastics foil to at least a subregion of the arrangement surface. The energy storage cell has a storage cell housing in which there is accommodated an electrode/separator arrangement which is required for the operation of the energy storage cell. The electrode/separator arrangement has a layer structure with a sequence of cathode layers and anode layers. Opposite cathode and anode layers there are in each case separated from one another by a separator layer which is in of a porous form. The electrode/separator arrangement has an arrangement surface.

Abstract translation: 用于至少部分地生产电能存储单元的方法包括提供电极/分离器。 布置，提供自粘形式的塑料箔，以及将所述自粘塑料箔施加到所述布置表面的至少一个子区域。 蓄能电池具有存储电池壳体，其中容纳有用于储能电池的操作所需的电极/分离器装置。 电极/分离器装置具有具有一系列阴极层和阳极层的层结构。 相反的阴极和阳极层，在每种情况下通过分离层彼此分离，分离层是多孔形式。 电极/分离器装置具有布置表面。