Michalski Hüttermann & Partner Patentanwälte mbB

The present disclosure relates to a method of manufacturing a positive electrode for an all-solid-state battery. The method includes preparing a positive electrode mixture including a positive electrode active material layer, a solid electrolyte, a conductive material, and a fibrous binder, forming a positive electrode active material layer, and attaching the positive electrode active material layer on a current collector. The positive electrode active material layer has a loading level in a range of about 35 mg/cm² to about 100 mg/cm².

The present disclosure relates to a solid electrolyte composite, a positive electrode active material slurry including the solid electrolyte composite, and a solid electrolyte slurry including the solid electrolyte composite. More particularly, the present disclosure relates to a solid electrolyte composite, which includes a sulfide-based solid electrolyte and a surface modifier on a surface of the sulfide-based solid electrolyte. The surface modifier includes a linear hydrocarbon chain and a polar functional group bonded to the linear hydrocarbon chain, and the surface modifier is attached to the surface of the sulfide-based solid electrolyte via the polar functional group.

The present disclosure relates to an electrode manufacturing device and a method of manufacturing an electrode using the same, and the technical objects to be solved are directed to providing an electrode manufacturing device and a method of manufacturing an electrode using the same, in which a defect rate in a winding process is minimized by accurately measuring an extent of elongation before/after rolling of an electrode and a length of a slurry elongated after the rolling. To this end, the present disclosure provides a transfer part (100) which moves an electrode (20) coated with an active material, a rolling part (200) which rolls the electrode, a marking part (300) which is provided in front of the rolling part and forms a plurality of mark portions on the electrode, a measurement part (400) which measures distances between the mark portions before the rolling and after the rolling of the electrode, and a control part (500) which calculates an extent of elongation by comparing measurement results of the measurement part.

The present disclosure relates to a negative electrode (20) for a rechargeable lithium battery (100), a wound-type electrode assembly (40) including the negative electrode, and a rechargeable lithium battery including the negative electrode. The present disclosure relates to a negative electrode for a lithium battery, the negative electrode including a negative electrode current collector (COL2), a first negative electrode active material layer (NAL1) on a first surface of the negative electrode current collector, and a second negative electrode active material layer (NAL2) and a third negative electrode active material layer (NAL3) stacked on a second surface of the negative electrode current collector.

Some example embodiments include an electrode for a rechargeable lithium battery, a manufacturing method thereof, and a rechargeable lithium battery including the electrode. The electrode includes a current collector, an electrode active material layer on the current collector, and a coating layer on the electrode active material layer. The coating layer includes nanofibers and curable polymer distributed in an island shape between the nanofibers.

The present invention relates to a negative electrode plate for a rechargeable lithium battery and a rechargeable lithium battery including the same, wherein the negative electrode plate includes a negative electrode active material that includes a mixture of a first negative electrode active material, a second negative electrode active material, and a third negative electrode active material, the first negative electrode active material includes natural graphite including secondary particles in which primary particles are assembled and an amorphous carbon coating layer containing amorphous carbon and surrounding the secondary particles, and has an orientation degree of 90 or less and a d002 value of 3.356 Å to 3.360 Å, the second negative electrode active material is artificial graphite, and the third negative electrode active material includes a composite of silicon and crystalline carbon; and an amorphous carbon coating layer containing amorphous carbon and formed on the surface of the composite.

Disclosed are a positive electrode, and a rechargeable lithium battery including the positive electrode. The positive electrode includes a current collector, and a positive electrode active material layer on the current collector. The positive electrode active material layer includes a positive electrode active material including a lithium transition metal composite compound, and an irreversible positive electrode additive including at least one of a lithium iron-based oxide, a lithium cobalt-based oxide, and a lithium nickel-based oxide.

The present disclosure relates to a negative electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the negative electrode, and for example to a negative electrode including a negative electrode current collector, a first and second negative electrode active material layers stacked on a first surface of the negative electrode current collector, and a third and fourth negative electrode active material layers stacked on a second surface of the negative electrode current collector. A content of a carbon-based negative electrode active material in the first negative electrode active material layer is larger than the content in the second negative electrode active material layer. A content of the carbon-based negative electrode active material in the third negative electrode active material layer is smaller than the content in the fourth negative electrode active material layer.

In a laser Raman microscope, a monochromatic excitation light beam emitted by a laser oscillator is reflected by an alignment mirror, transmitted through a first beam splitter, reflected by a rejection filter, and irradiates a sample via an objective lens. The monochromatic excitation light beam propagates backward to and is reflected by the first beam splitter, and enters an AF control unit. Here, the positional deviation between the focus of the objective lens and the sample is corrected. Raman-scattered light scattered by the sample is guided to a spectrometer, and the spectrometer spectrally resolves the Raman-scattered light. A detector detects the spectrally resolved light. Illumination light from an illumination lamp irradiates the sample through a movable reflecting mirror disposed in an optical path of scattered light transmitted through the rejection filter, and an observation camera images reflected light representing the surface shape of the sample.

Disclosed are a compound for an organic optoelectronic device represented by Chemical Formula 1, a composition for an organic optoelectronic device including the same, an organic optoelectronic device, and a display device. The contents of Chemical Formula 1 are as defined in the detailed description.