US 11,990,587 B2
Stack for an energy storage device
Michael Edward Rendall, Newbury (GB)
Assigned to Dyson Technology Limited, Wiltshire (GB)
Appl. No. 17/261,514
Filed by Dyson Technology Limited, Wiltshire (GB)
PCT Filed Jul. 19, 2019, PCT No. PCT/GB2019/052039
§ 371(c)(1), (2) Date Jan. 19, 2021,
PCT Pub. No. WO2020/016608, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 1811878 (GB), filed on Jul. 20, 2018.
Prior Publication US 2021/0328269 A1, Oct. 21, 2021
Int. Cl. H01M 10/0585 (2010.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 10/0585 (2013.01) [H01M 10/045 (2013.01); H01M 10/0525 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining a stack for an energy storage device, the stack comprising a substrate, a first electrode layer, a second electrode layer, and an electrolyte layer between the first electrode layer and the second electrode layer;
laser ablating the stack to form a plurality of first grooves in the stack, each of the plurality of first grooves being through the first electrode layer and the electrolyte layer; and
forming, in or on the stack, at least one registration feature, different from each of the plurality of first grooves,
wherein, for at least one of the plurality of first grooves, laser ablating to form the groove exposes a surface of at least the first electrode layer; and wherein the method further comprises:
providing a monomer suspended in an inert gas in the region of the groove during the laser ablating thereof such that the monomer is polymerised onto the exposed surface of the first electrode layer.