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IP India · live recordAbstract
ABSTRACT AN ELECTRODE COMPRISING INSULATION LAYER WITH HIGH MECHANICAL-STRENGTH AND PREPARATION THEREOF The present disclosure provides an electrode (100) comprising an insulation layer (101), a current collector (102), and an electrodic film (103), wherein the insulation layer comprises a ceramic material and a first binder; wherein the electrodic film comprises an active material, a conductive additive, and a second binder; and wherein the current collector (102) is coated with the insulation layer (101) on a first portion of the current collector and with the electrodic film (103) on a second portion of the current collector. The present disclosure further provides a battery and electrochemical cell comprising the electrode.
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Description:AS ATTACHED , Claims:AS ATTACHED
I/We Claim: 1. An electrode (100) comprising: a. an insulation layer (101); b. a current collector (102); and c. an electrodic film (103); wherein the insulation layer comprises a ceramic material selected from boehmite, silica, alumina, zirconium oxide or combinations thereof, and a first binder; wherein the electrodic film comprises an active material, a conductive additive, and a second binder; and wherein the current collector (102) is coated with the insulation layer (101) on a first portion of the current collector and with the electrodic film (103) on a second portion of the current collector. 2. The electrode as claimed in claim 1, wherein the ceramic material is in a weight range of 60 to 90 %, with respect to the total weight of the insulation layer. 3. The electrode as claimed in claim 1, wherein the first binder is selected from polyvinylidene fluoride (PVDF), vinylidene fluoride (VDF), poly(vinylidene-co-hexafluoropropylene) (PVDF-HFP), polyacrylonitrile (PAN), polyamides or combinations thereof. 4. The electrode as claimed in claim 1, wherein the first binder has a solid content in a range of 4 to 10 %, with respect to the total weight of the insulation layer. 5. The electrode as claimed in claim 1, wherein the active material is selected from layered oxides, nickel manganese cobalt (NMC), nickel cobalt aluminium (NCA), lithium iron phosphate (LFP), lithium manganese iron phosphate (LMFP), or combinations thereof. 6. The electrode as claimed in claim 1, wherein the active material is in a weight range of 95 to 98%, with respect to the total weight of the electrodic 30 film.
7. The electrode as claimed in claim 1, wherein the conductive additive is selected from carbon black, graphene, mesoporous carbon, acetylene black, activated carbon, super P, carbon nanofiber, vapour grown carbon nanofiber, carbon nanotube, or combinations thereof. 8. The electrode as claimed in claim 1, wherein the conductive additive is in a weight range of 1 to 4%, with respect to the total weight of the electrodic film. 9. The electrode as claimed in claim 1, wherein the second binder is selected from polytetrafluoroethylene, polyvinylidene fluoride, polyethylene oxide, fluoroethylene vinyl ether (FEVE), fluoroethylene polymer (FEP), or combinations thereof. 10. The electrode as claimed in claim 1, wherein the second binder is in a weight range of 0.1 to 3%, with respect to the total weight of the electrodic film.