US 11,982,685 B2
Pre-fabricated movable walk-in chamber for testing secondary cells
Sean Stephenson, Bureå (SE)
Assigned to Northvolt AB, Stockholm (SE)
Filed by Northvolt AB, Stockholm (SE)
Filed on Dec. 1, 2022, as Appl. No. 18/072,953.
Claims priority of application No. 2151463-3 (SE), filed on Dec. 1, 2021.
Prior Publication US 2023/0168276 A1, Jun. 1, 2023
Int. Cl. G01R 1/04 (2006.01); G01R 31/36 (2020.01)
CPC G01R 1/0408 (2013.01) [G01R 31/3644 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A movable walk-in chamber for testing secondary cells, the movable walk-in chamber comprising:
an enclosure having at least two short sides and two long sides, wherein each of the two short sides has a width that is less than each of the two long sides, the enclosure forming at least one thermally isolated temperature chamber, wherein the enclosure comprises a walking aisle,
two sets of racking, each racking arranged along a respective inner wall of the two long sides of the enclosure along the walking aisle, into which
a plurality of secondary cells can be inserted for testing and removed after testing, a plurality of cycler interfaces arranged at outer walls of the enclosure of the movable walk-in chamber, wherein each cycler interface comprises a power interface and one or more cell interfaces configured to connect secondary cells removably inserted in the racking to cyclers,
cabling arranged to electrically connect the power interfaces of the plurality of cycler interfaces to at least one central power connector, whereby cyclers connected to the cycler interfaces can be powered from the movable walk-in chamber, and
cabling arranged to electrically connect the cell interfaces of the plurality of cycler interfaces to poles of secondary cells inserted in the racking, whereby the cyclers connected to the cycler interfaces are able to perform testing on cells arranged in the racking.