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US 12,586,794 B2Granted
Positive electrode for lithium secondary battery including insulating layer having excellent wet adhesion and lithium secondary battery including the same
AssigneeLG Energy Solution, Ltd.
InventorsSeong Keun Jang, Sung Chul Park, Sang A Choi, Sung Soo Yoon
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Abstract
A positive electrode for a lithium secondary battery includes an insulating layer having excellent wet adhesion provide an advantage in that migration of lithium ions in an overlay region of the electrode can be blocked to suppress capacity expression due to the insulating layer having excellent wet adhesion in a liquid electrolyte.
Claims16
A positive electrode for a lithium secondary battery, comprising:
- a current collector;
- an active material layer formed on one surface or both surfaces of the current collector, wherein the active material layer includes a positive electrode active material, a conductive material, and a non-aqueous binder;
- and
- an insulating layer provided on the active material layer,
- wherein the insulating layer is prepared with an aqueous binder dispersed in a non-aqueous solvent, and
- wherein the aqueous binder includes one or more of styrene-butadiene rubber, acrylate styrene-butadiene rubber, acrylonitrile-butadiene rubber, acrylonitrile-butadiene-styrene rubber, or polyvinylpyrrolidone.
3 more elements
Dependencies are inferred from the claim text.