Abstract:
Disclosed are an electrode assembly, and a secondary lithium battery including the same. The electrode assembly is configured by alternately stacking two or more positive electrodes and one or more negative electrodes using a separator as a boundary therebetween, outermost positive electrodes are positioned on outermost opposite surfaces of the electrode assembly, respectively, each of the outermost positive electrodes includes a positive electrode current collector, a positive active material layer formed on one surface of the positive electrode current collector, and a non-reversible material coating layer formed on the other surface of the positive electrode current collector and including lithium oxide, and the non-reversible material coating layer is positioned on an outermost surface of the electrode assembly.
Abstract:
The present disclosure relates to a positive electrode for a lithium secondary battery comprising a positive electrode current collector and a positive electrode active material layer coated and formed on at least one surface of the positive electrode current collector, wherein the positive electrode current collector includes a non-coated portion protruded with no positive electrode active material layer coated thereon, and wherein an irreversible material composed of lithium oxide is coated on the non-coated portion, and a lithium secondary battery including the same.
Abstract:
A positive electrode mix, a positive electrode, and a lithium secondary battery, each including the positive electrode mix, are provided. Specifically, the positive electrode mix includes lithium peroxide (Li2O2) and platinum (Pt), thereby effectively counterbalancing an irreversible capacity imbalance between both electrodes and further increasing the initial charge capacity of the positive electrode.
Abstract:
The present invention relates to an apparatus for manufacturing a secondary battery, the apparatus comprising a radical unit sheet supply part that supplies a semi-finished radical unit sheet on which a first electrode sheet is laminated on an outermost portion thereof, a film sheet supply part that supplies a film sheet coated with a stabilized lithium metal power (SLMP) layer to attach the film sheet to each of top and bottom surfaces of the semi-finished radical unit sheet, a film sheet pressing part that allows the SLMP layer applied to the film sheet to be bonded to each of the top and bottom surfaces of the semi-finished radical unit sheet, and a film sheet removing part that removes the film sheet from the SLMP layer bonded to the semi-finished radical unit sheet to manufacture a finished radical unit sheet.
Abstract:
A positive electrode, and a lithium secondary battery including the positive electrode, are provided. Specifically, the positive electrode may effectively counterbalance an irreversible capacity imbalance between two electrodes and further increase the initial charge capacity of the positive electrode by double-coating a positive electrode collector with a positive electrode active material and a lithium oxide-based compound.
Abstract:
Provided are a positive electrode and a lithium secondary battery which have high energy capacity and include a nickel-containing positive electrode active material, and an additive including metal particles and lithium oxide.
Abstract:
Provided are a positive electrode and a lithium secondary battery which have high energy capacity and include a nickel-containing positive electrode active material, and an additive including metal particles and lithium oxide.
Abstract:
Disclosed is a positive electrode for secondary batteries including a positive electrode mix coated on a current collector. More particularly, disclosed are a positive electrode for secondary batteries including a positive electrode mix coated on a current collector and a secondary battery including the same, wherein the current collector includes carbon nanotubes (CNTs) vertically grown from a surface of the current collector, the positive electrode mix contact the current collector in a state that at least a portion of the positive electrode mix is interposed in a space between the carbon nanotubes, and the positive electrode has high conductivity and safety.
Abstract:
The present disclosure relates to a positive electrode for a lithium secondary battery comprising a positive electrode current collector and a positive electrode active material layer coated and formed on at least one surface of the positive electrode current collector, wherein the positive electrode current collector includes a non-coated portion protruded with no positive electrode active material layer coated thereon, and wherein an irreversible material composed of lithium oxide is coated on the non-coated portion, and a lithium secondary battery including the same.
Abstract:
A method of manufacturing a negative electrode for a secondary battery includes a first step of preparing a lithium metal sheet coated with a lithium metal or to which the lithium metal is adhered in a form of a thin film on a release film and wound into a roll, a second step of laminating the lithium metal sheet to allow the lithium metal to be adjacent to a negative electrode material mixture, to thereby manufacture a negative electrode in which lithium metal is laminated and a third step of applying pressure to the negative electrode. The release film is coated with silicon. The negative electrode manufacturing method uniformly laminates or bonds lithium metal which is difficult to handle on the negative electrode material mixture of the secondary battery and advantageously enhances the speed of the pre-lithiation by using the patterned lithium metal.