Battery devices and method for fixing battery cells

Inventors: Stefan Herter (Uttenweiler, DE); Tobias Schmidt (Pliezhausen, DE); Stefan Dwenger (Reutlingen, DE); Jochen Hantschel (Dettingen/Erms, DE); Michael Grotz (Eningen, DE); Moritz Bertsch (Dettingen/Erms, DE); Armin Diez (Lenningen, DE); Mark Laderer (Grabenstetten, DE); André Wiechert (Gomadingen, DE); Joachim Buck (Laichingen, DE); Christian Honeck (Pfullingen, DE); Florian Schwarz (Reutlingen, DE); Heinrich Rot (Stuttgart, DE); Thomas Sträussl (Krumbach, DE)

Assignee: ElringKlinger AG

H01M50/213 H01M10/643 H01M10/6556 H01M50/224 H01M50/258 H01M50/262 H01M50/289

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Quick Facts

Patent No.: US 12683224
App. No.: 17/582,767
Granted: Jul 14, 2026
Kind: B2

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Abstract

A battery device comprises one or more battery modules, one of the respective battery modules comprising the following: a frame element, a base element and a plurality of battery cell.

Claims (34)

1 . A battery device, the battery device comprising one or more battery modules,

at least one of the battery modules comprising:

a frame element;

a base element;

a receiving space comprising a plurality of battery cells;

one or more stacking protrusions protruding in a stacking direction of the battery device;

one or more stacking recesses, in which stacking recesses stacking protrusions of a frame element of an adjacent battery module can be received; and

a sealing element in addition to the one or more stacking protrusions;

wherein

the frame element comprises a double wall, the double wall comprising an inner wall element and an outer wall element, wherein the inner wall element is closer to the receiving space than the outer wall element, and

wherein at least part of at least one stacking protrusion of the one or more stacking protrusions and/or at least part of at least one stacking recess of the one or more stacking recesses is in a radial direction offset from the inner wall element towards or onto the receiving space or in a radial direction offset from the outer wall element away from the receiving space.

2 . The battery device according to claim 1 , wherein the frame element and/or the base element is produced of a metallic material.

3 . The battery device according to claim 1 , wherein a temperature control medium can flow through the double wall of the frame element.

4 . The battery device according to claim 1 , wherein the double wall of the frame element delimits a temperature control space of the at least one of the battery modules.

5 . The battery device according to claim 1 , wherein the frame element comprises a frame element main body that is designed in multiple parts, the frame element main body in particular comprising a plurality of frame element main body parts.

6 . The battery device according to claim 5 , wherein the frame element main body parts of the frame element main body are or can be connected to one another in a form-fitting manner, the frame element main body parts preferably each comprising one or more form-fitting elements, by means of which the frame element main body parts are connected to each other in a form-fitting manner.

7 . The battery device according to claim 1 , wherein the base element of the at least one of the battery modules comprises one or more passage openings that open into a temperature control space of the battery module.

8 . The battery device according to claim 1 , wherein the sealing element is arranged between the frame element of the at least one of the battery modules and the base element of an adjacent battery module.

9 . The battery device according to claim 1 , wherein the at least one battery module comprises one or more spacer elements, by means of which the base elements of the battery modules are arranged or can be arranged substantially parallel to one another.

10 . The battery device according to claim 9 , wherein the one or more spacer elements of the at least one battery module comprise two contact surfaces arranged on opposing sides of the spacer element, a spacer element contacting the base element of the at least one battery module with a first contact surface and the spacer element contacting or being able to contact the base element of an adjacent battery module with a second contact surface.

11 . The battery device according to claim 9 , wherein a spacer element of a respective battery module is formed by the frame element of the battery module.

12 . The battery device according to claim 1 , wherein the frame element of the at least one battery module is connected or can be connected to the base element of the at least one battery module in a force-fitting and/or form-fitting manner.

13 . The battery device according to claim 1 , wherein one or more battery modules of the battery device are of identical design.

14 . A battery device, the battery device comprising at least two battery modules which include a first battery module and a second battery module, the first battery module comprising:

a frame element of the first battery module;

a base element of the first battery module; and

a plurality of battery cells of the first battery module, wherein

the frame element of the first battery module comprises a double wall, the second battery module comprising:

a frame element of the second battery module;

a base element of the second battery module; and

a plurality of battery cells of the second battery module,

wherein the first battery module comprises two compressible sealing elements, a first sealing element of the first battery module being compressed between the frame element of the first battery module and the base element of the first battery module, wherein a material of the first sealing element is different from the materials of the frame element of the first battery module and the base element of the first battery module, and a second sealing element of the first battery module being compressed between the frame element of the first battery module and the base element of the second battery module, wherein a material of the second sealing element is different from the materials of the frame element of the first battery module and the base element of the second battery module.

15 . The battery device according to claim 14 , wherein the first battery module comprises one or more spacer elements, by means of which the base element of the first battery module and the base element of the second battery module are arranged or can be arranged substantially parallel to one another.

16 . The battery device according to claim 14 , wherein the frame element of the first battery module comprises one or more stacking projections projecting away from the frame element of the first battery module parallel to a stacking direction of the battery device and/or one or more stacking recesses, in which stacking recesses stacking projections of the frame element of the second battery module or of another adjacent battery module can be received.