US 12,218,383 B2
Electrode plate for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery
Takanori Maruo, Osaka (JP); Shinji Mino, Osaka (JP); and Motoki Kinugawa, Kyoto (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/041,693
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Feb. 28, 2019, PCT No. PCT/JP2019/007741
§ 371(c)(1), (2) Date Sep. 25, 2020,
PCT Pub. No. WO2019/193882, PCT Pub. Date Oct. 10, 2019.
Claims priority of application No. 2018-074113 (JP), filed on Apr. 6, 2018.
Prior Publication US 2021/0013482 A1, Jan. 14, 2021
Int. Cl. H01M 50/538 (2021.01); H01M 4/13 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/0587 (2010.01); H01M 50/534 (2021.01); H01M 50/536 (2021.01)
CPC H01M 50/538 (2021.01) [H01M 4/13 (2013.01); H01M 4/625 (2013.01); H01M 10/0587 (2013.01); H01M 10/0525 (2013.01); H01M 50/534 (2021.01); H01M 50/536 (2021.01)] 19 Claims
OG exemplary drawing
 
1. An electrode plate for a non-aqueous electrolyte secondary battery, comprising:
a core having a band shape;
a first active substance layer formed over at least a first surface of the core, wherein an electricity collecting lead is connected to an exposed portion in which the core is exposed at a portion of the first surface, wherein the exposed portion does not extend across an entire length of the first surface in a long-length direction of the core; and
a second active substance layer that is disposed over a portion of the first surface, adjacent to the exposed portion, and that has a higher electrical conductivity than the first active substance layer,
wherein the first active substance layer and the second active substance layer are located in different ranges of the first surface in a plan view of the core, and
the second active substance layer has a larger amount of an electrically conductive material per unit area than the first active substance layer.