US 11,699,794 B2
Conductor, power storage device, electronic device, and method for forming conductor
Teruaki Ochiai, Atsugi (JP); Takahiro Kawakami, Atsugi (JP); and Takuya Miwa, Atsugi (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken (JP)
Filed by Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Filed on Apr. 28, 2022, as Appl. No. 17/731,538.
Application 16/936,566 is a division of application No. 15/189,517, filed on Jun. 22, 2016, granted, now 10,784,516, issued on Sep. 22, 2020.
Application 17/731,538 is a continuation of application No. 16/936,566, filed on Jul. 23, 2020, granted, now 11,322,746.
Claims priority of application No. 2015-128002 (JP), filed on Jun. 25, 2015.
Prior Publication US 2022/0255084 A1, Aug. 11, 2022
Int. Cl. H01M 4/00 (2006.01); H01M 4/66 (2006.01); H01M 4/131 (2010.01); H01M 4/587 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01G 11/50 (2013.01); H01G 11/36 (2013.01); H01G 11/86 (2013.01); H01G 11/38 (2013.01); H01M 10/0525 (2010.01)
CPC H01M 4/663 (2013.01) [H01G 11/36 (2013.01); H01G 11/38 (2013.01); H01G 11/50 (2013.01); H01G 11/86 (2013.01); H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/587 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A current collector of a secondary battery, comprising:
a graphene compound;
wherein an interlayer distance between adjacent layers in the graphene compound is longer than or equal to 0.335 nm and shorter than or equal to 0.7 nm,
wherein the graphene compound comprises ions between the adjacent layers, and
wherein the ions between the adjacent layers in the graphene compound at least comprise lithium ions.