Abstract: The present invention relates to a positive electrode for a lithium secondary battery and a lithium secondary battery comprising the same, wherein the positive electrode comprises: a current collector; an active material layer formed on the current collector and comprising a compound capable of intercalating and deintercalating lithium; and a coating layer formed on the active material layer and comprising an aqueous binder and a compound of Chemical Formula 1 having an average particle diameter (D50) of 2 ?m or less. LiaFe1-xMxPO4??[Chemical Formula 1] (In Chemical Formula 1, 0.90?a?1.8, 0?x?0.

Abstract: An electrode assembly and a rechargeable battery including the same are disclosed. The electrode assembly includes a plurality of unit cells overlapping in a thickness direction of the plurality of unit cells and a functional unit cell disposed with the plurality of unit cells. The functional unit cell includes a positive electrode. The positive electrode includes a positive current collector, a positive active material layer on at least one surface of the positive current collector and including a positive active material having a first reference potential, and a functional layer on the positive active material layer and including an active material having a lower reference potential than the first reference potential.

Abstract: Provided are a positive active material for a rechargeable lithium battery and a positive electrode including the same. The positive active material for a rechargeable lithium battery includes a first positive active material and a second positive active material, wherein the first positive active material includes at least one nickel-based lithium composite oxide, and the second positive active material is represented by Chemical Formula 2 and has an average particle diameter of about 300 nm to about 600 nm: Lia1Fe1-x1M1x1PO4.??[Chemical Formula 2] In Chemical Formula 2, 0.90?a1?1.8, 0?x1?0.7, and M1 may be Mg, Co, Ni, or a combination thereof.

Abstract: The present disclosure relates to an electrode for a lithium secondary battery, the electrode comprising: a current collector layer; a functional layer disposed on the current collector layer; and an active material layer disposed on the functional layer, wherein the functional layer includes a polymer particle having a weight-average molecular weight of 200 to 50,000.

Abstract: The present invention relates to an electrode assembly and a rechargeable battery including same. The electrode assembly may comprise: a negative electrode, a positive electrode, and a separator interposed between the negative electrode and the positive electrode and including a first surface facing the negative electrode and a second surface facing the positive electrode, a first functional layer positioned on the first surface and including a fibrous polymer and a heat resistant polymer, and a second functional layer positioned on the second surface and including an inorganic particle and an organic particle.

Abstract: Disclosed are a composite electrolyte, including: a network web formed of a fiber containing a polymer and inorganic particles, wherein a content of the inorganic particles is 5 wt % or less based on a total weight of the composite electrolyte, a preparing method thereof, and a lithium metal battery including the same.

Abstract: The present invention relates to a positive electrode for a lithium secondary battery and a lithium secondary battery comprising the same, wherein the positive electrode comprises: a current collector; an active material layer formed on the current collector and comprising a compound capable of intercalating and deintercalating lithium; and a coating layer formed on the active material layer and comprising an aqueous binder and a compound of Chemical Formula 1 having an average particle diameter (D50) of 2 ?m or less. LiaFe1-xMxPO4??[Chemical Formula 1] (In Chemical Formula 1, 0.90?a?1.8, 0?x?0.

Abstract: The present disclosure relates to an electrode assembly, a method for producing the same, and a secondary battery including the same, the electrode assembly comprising: a negative electrode, in which a negative electrode current collecting layer, a negative electrode active material layer, and an insulation layer are sequentially laminated; a positive electrode; and a separator disposed between the negative electrode and the positive electrode, wherein a porosity of the insulation layer is 50% to 75%.

Abstract: The present disclosure relates to an electrode for a lithium secondary battery, the electrode comprising: a current collector layer; a functional layer disposed on the current collector layer; and an active material layer disposed on the functional layer, wherein the functional layer includes a polymer particle having a weight-average molecular weight of 200 to 50,000.

Abstract: An electrode assembly and a rechargeable battery including the same are disclosed. The electrode assembly includes a plurality of unit cells overlapping in a thickness direction of the plurality of unit cells and a functional unit cell disposed with the plurality of unit cells. The functional unit cell includes a positive electrode. The positive electrode includes a positive current collector, a positive active material layer on at least one surface of the positive current collector and including a positive active material having a first reference potential, and a functional layer on the positive active material layer and including an active material having a lower reference potential than the first reference potential.

Abstract: A secondary battery includes a cathode; an anode; and an electrolyte between the cathode and the anode, wherein the electrolyte includes a first electrolyte layer including a first polymer, a first lithium salt, and a first particle inorganic material having an average particle diameter (D50) of less than 500 nm; and a second electrolyte layer including a second polymer, a second lithium salt, and a second particle inorganic material having an average particle diameter (D50) of 500 nm or greater, wherein the first electrolyte layer is disposed in a direction facing the anode.

Abstract: Provided are a positive active material for a rechargeable lithium battery and a positive electrode including the same. The positive active material for a rechargeable lithium battery includes a first positive active material and a second positive active material, wherein the first positive active material includes at least one nickel-based lithium composite oxide, and the second positive active material is represented by Chemical Formula 2 and has an average particle diameter of about 300 nm to about 600 nm: Lia1Fe1-x1M1x1PO4.??[Chemical Formula 2] In Chemical Formula 2, 0.90?a1?1.8, 0?x1?0.7, and M1 may be Mg, Co, Ni, or a combination thereof.

Abstract: Provided are an electrolyte for a lithium metal battery and a lithium metal battery including the electrolyte, wherein the electrolyte includes: first inorganic particles having an average size of about 10 nm to about 100 nm; second inorganic particles having a average size larger than the average size of the first inorganic particles; an ion-conductive polymer; and a lithium salt, wherein a size ratio of the first inorganic particles to the second inorganic particles is about 1:9 to about 1:20.

Abstract: Disclosed are a composite electrolyte, including: a network web formed of a fiber containing a polymer and inorganic particles, wherein a content of the inorganic particles is 5 wt % or less based on a total weight of the composite electrolyte, a preparing method thereof, and a lithium metal battery including the same.

Abstract: A positive active material composition for a lithium secondary battery includes a positive active material that allows intercalation and deintercalation of lithium ions, a binder, and a conductive agent. The conductive agent includes a first conductive agent having an average particle diameter (D50) ranging from about 20 nanometers (nm) to about 40 nm and a second conductive agent having a D50 ranging from about 1 micrometer (?m) to about 5 ?m.

Abstract: A positive active material composition for a lithium secondary battery includes a positive active material that allows intercalation and deintercalation of lithium ions, a binder, and a conductive agent. The conductive agent includes a first conductive agent having an average particle diameter (D50) ranging from about 20 nanometers (nm) to about 40 nm and a second conductive agent having a D50 ranging from about 1 micrometer (?m) to about 5 ?m.

Abstract: A secondary battery includes a cathode; an anode; and an electrolyte between the cathode and the anode, wherein the electrolyte includes a first electrolyte layer including a first polymer, a first lithium salt, and a first particle inorganic material having an average particle diameter (D50) of less than 500 nm; and a second electrolyte layer including a second polymer, a second lithium salt, and a second particle inorganic material having an average particle diameter (D50) of 500 nm or greater, wherein the first electrolyte layer is disposed in a direction facing the anode.

Abstract: An electrode coated with an inorganic layer having improved dispersibility and phase stability includes an electrode layer, and an inorganic layer coated on a surface of the electrode layer, wherein the inorganic layer includes inorganic particles and an organic acrylic-based binder. A manufacturing method of the electrode and a rechargeable battery including the electrode are also described.