Patent ID: 11916238
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 10:
11. A method for manufacturing the electrode as defined in claim 1, comprising:
coating a slurry for a lower layer comprising the first active material, the first non-rubbery binder, and a first dispersion medium, and free from the rubbery binder on one surface of the current collector, followed by drying, to form a lower active material layer; and
coating a slurry for an upper layer comprising the second active material, the second non-rubbery binder, the rubbery binder, and a second dispersion medium on a top surface of the lower active material layer, followed by drying, to form an upper active material layer,
wherein the rubbery binder is the hydrogenated nitrile butadiene rubber (H-NBR),
each of the first non-rubbery binder and the second non-rubbery binder comprises the polyvinylidene fluoride (PVDF)-based polymer, and
the weight ratio of the second non-rubbery binder to the rubbery binder in the slurry for an upper layer is 1:0.03 to 1:0.07.