IP Library Granted Patent US 12671103
Granted Patent B2
US 12671103 · App. 17/800,597 · Granted Jun 30, 2026

Apparatus and method for installing an electrochemical cell stack

Inventors: Eberhard Maier (Koengen, DE); Johan Flink (Gothenburg, SE); Stefan Munthe (Gothenburg, SE)
Assignees: Robert Bosch GmbH; Powercell Sweden AB
H01M8/2404
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Quick Facts
Patent No.
US 12671103
App. No.
17/800,597
Granted
Jun 30, 2026
Kind
B2
Abstract

A method for assembling an electrochemical cell stack is proposed, which has the following steps: assembling a first stack component ( 140 ), which has a first adjustment opening ( 115 ), on an electrochemical substack through cooperation between the first adjustment opening ( 115 ) and a first adjustment device ( 110 ). Repositioning the first adjustment device ( 110 ) in the construction direction of the electrochemical substack for locally adjusted assembly of a second stack component, which has a corresponding first adjustment opening for locally adjusted assembly.

Claims (13)

1 . A method for assembling an electrochemical cell stack, the method having the steps:

assembling a first stack component ( 140 ), which has a first adjustment opening ( 115 ), on an electrochemical substack through cooperation between the first adjustment opening ( 115 ) and a first adjustment device ( 110 ) defining a longitudinal axis that extends in a longitudinal direction; and

repositioning the first adjustment device ( 110 ) in the longitudinal direction for locally adjusted assembly of a second stack component ( 140 ), which has a corresponding first adjustment opening ( 115 ) for locally adjusted assembly,

wherein the first and the second stack component ( 140 ) are assembled with aid of a total adjustment device ( 130 ), the total adjustment device ( 130 ) engages and aligns an outer perimeter of the first and the second stack components ( 140 ), while the first adjustment device ( 110 ) locally adjusts the first and the second stack component ( 140 ),

wherein the first adjustment device ( 110 ) only engages stack components of a plurality of stack components that are arranged in an upper part of the electrochemical substack for locally adjusted assembly, and does not engage stack components of the plurality of stack components that are arranged in a lower part of the electrochemical substack.

2 . The method as claimed in claim 1 , wherein, for adjustment purposes, the first ( 110 ) and/or the second adjustment device ( 120 ) are positioned via a positioning device ( 240 ) and/or via the respective adjustment openings ( 115 , 125 ) of the plurality of stack components of the electrochemical substack which are assembled one above another.

3 . The method as claimed in claim 1 , wherein the first ( 110 ) and/or the second adjustment device ( 120 ) are removed from the electrochemical substack in the longitudinal direction after the assembly of the first ( 140 ) or the second stack component.

4 . The method as claimed in claim 1 , wherein the first adjustment device ( 110 ) defines a first diameter adjacent the first stack component ( 140 ), wherein the first adjustment device ( 110 ) defines a second diameter adjacent the second stack component ( 140 ), and wherein the second diameter is greater than the first diameter.

5 . The method as claimed in claim 1 , wherein the outer perimeter includes a corner of the first and the second stack component ( 140 ).

6 . The method as claimed in claim 1 , wherein the first stack component ( 140 ) and the second stack component each have a corresponding second adjustment opening ( 125 ) and are assembled on the electrochemical substack in a locally adjusted manner with aid of a second adjustment device ( 120 ), wherein the second adjustment device ( 120 ) is repositioned in the longitudinal direction for assembly of the second stack component.

7 . The method as claimed in claim 6 , wherein, during assembly, the first and/or the second stack component ( 140 ) is positioned via the corresponding first adjustment opening ( 115 ) and is aligned via the corresponding second adjustment opening ( 125 ).

8 . The method as claimed in claim 6 , wherein, for assembly of the second stack component ( 140 ), the respective adjustment device ( 110 , 120 ) and the respective adjustment opening ( 115 , 125 ) are dimensioned with a first clearance fit.

9 . The method as claimed in claim 8 , wherein, for assembly of the first stack component ( 140 ), there is a second clearance fit between the respective adjustment device ( 110 , 120 ) and the respective adjustment opening ( 115 , 125 ) of the plurality of stack components of the electrochemical substack below the second stack component ( 140 ), and the first clearance fit is dimensioned to be tighter than the second clearance fit.