US 12,463,223 B2
Electrode for battery, battery having electrode and method for manufacturing electrode and battery having electrode
Noboru Yoshida, Tokyo (JP); Makihiro Otohata, Tokyo (JP); and Shinya Sudo, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Mar. 24, 2023, as Appl. No. 18/126,123.
Application 18/126,123 is a continuation of application No. 16/086,188, abandoned, previously published as PCT/JP2017/018650, filed on May 18, 2017.
Claims priority of application No. 2016-104345 (JP), filed on May 25, 2016.
Prior Publication US 2023/0253566 A1, Aug. 10, 2023
Int. Cl. H01M 4/66 (2006.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/0569 (2010.01); H01M 50/46 (2021.01)
CPC H01M 4/661 (2013.01) [H01M 4/0433 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/623 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01); H01M 50/46 (2021.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 4/131 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A battery comprising:
at least one positive electrode;
a separator; and
at least one negative electrode disposed to face the positive electrode via the separator,
wherein at least one of the positive electrode and the negative electrode comprises:
a current collector,
an active material layer formed on at least one surface of the current collector, and
an insulating layer adhered to a surface of the active material layer,
wherein a peeling strength between the active material layer and the insulating layer is higher than a peeling strength between the current collector and the active material layer,
peeling occurs between the current collector and the active material layer and a peeling strength thereof is 11 mN/mm or more in a 90° peeling test at a peeling rate of 100 mm/min, and
the insulating layer includes non-conductive particles and a binder, a mass percentage of the binder in the insulating layer is 10 to 20 mass %, the binder adhering the insulating layer to the surface of the active material layer, and
wherein neither the positive electrode, nor the negative electrode, nor the insulating layer are adhered to the separator.