Back to results
US 10,897,038 B2Granted
Positive electrode and lithium secondary battery including the same
AssigneeLG Chem, Ltd.
InventorDae-Soo Kim
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a positive electrode which includes a lithium transition metal composite oxide and a binder polymer, wherein the binder polymer has a functional group capable of adsorbing the transition metal ions of the lithium transition metal composite oxide.
Claims7
A positive electrode which comprises a lithium transition metal composite oxide and a binder polymer, wherein the binder polymer has a functional group capable of adsorbing the transition metal ions of the lithium transition metal composite oxide,
- wherein the binder polymer is formed by polymerization of single molecules containing the functional group and a binder backbone, and
- wherein the binder backbone comprises at least one selected from the group consisting of polyvinylidene fluoride, polyvinylidene fluoride-co-hexafluoroproyplee (PVDF-co-HFP), polyvinyl alcohol, carboxymethyl cellulose (CMC), starch, hydroxypropyl cellulose, regenerated cellulose, polyvinyl pyrrolidone, polytetrafluoroethylene, polyethylene, polypropylene, ethylene-propylene-diene terpolymer (EPDM), sulfonated EPDM, styrene butadiene rubber (SBR), fluororubber, polyacrylonitrile and polymethyl methacrylate,
- wherein the functional group is chitosan and/or includes chitosan.
Dependencies are inferred from the claim text.