US 12,424,606 B2
Method of fabricating a component material for a battery cell
Gianfranco Aresta, Southampton (GB); Louise Turner, Salisbury (GB); Thomas Foley, Southampton (GB); Thomas Risbridger, Southampton (GB); Brian Elliott Hayden, Lyndhurst (GB); William Richardson, Oxford (GB); Robert Noble, Lockerley (GB); and Owain Clark, Southampton (GB)
Assigned to Ilika Technologies Ltd, Romsey (GB)
Appl. No. 17/762,587
Filed by ILIKA TECHNOLOGIES LTD, Romsey (GB)
PCT Filed Sep. 29, 2020, PCT No. PCT/GB2020/052347
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2021/064356, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 1914061 (GB), filed on Sep. 30, 2019.
Prior Publication US 2022/0344628 A1, Oct. 27, 2022
Int. Cl. H01M 4/04 (2006.01); H01M 4/02 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01)
CPC H01M 4/0404 (2013.01) [H01M 4/0426 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/66 (2013.01); H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0071 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A method of fabricating a component material for a battery cell comprising the steps of:
providing a partially-fabricated battery cell, the partially-fabricated battery cell comprising a substrate having a planar deposition surface consisting of a first face of the substrate and a first battery component layer provided on the planar deposition surface, the substrate having a plurality of further surfaces, the planar deposition surface and the plurality of further surfaces defining the body of the substrate therebetween;
wherein:
the first battery component layer contains charge-carrying metal species and has an exposed surface;
one or more electrically conductive or semi-conductive pathways extend through at least a portion of the substrate, each of the one or more pathways connecting the planar deposition surface to one of the plurality of further surfaces;
the partially-fabricated battery cell is held in position within a deposition chamber by a holding structure and each site of connection between one of the one or more pathways and the holding structure is electrically insulating; and
the partially-fabricated battery cell is separated from the holding structure by one or more dielectric spacers;
the method further comprising the step of depositing a second battery component layer on the first battery component layer, wherein the depositing comprises forming a plasma within the deposition chamber.