Abstract: A separator for a lithium secondary battery, including: a porous polymer substrate; and a crosslinked porous coating layer on at least one surface of the porous polymer substrate. The crosslinked porous coating layer includes inorganic particles and a crosslinkable binder polymer crosslinked through urethane crosslinking. The separator has improved heat resistance as compared to the conventional separators and maintains adhesion to an electrode. A lithium secondary battery including the separator is also disclosed.

Abstract: In accordance with an exemplary embodiment of the present invention, an assembly for supporting substrate, the assembly comprising: a support frame having at least one insertion hole recessed from one surface of the support frame, the insertion hole having an inner movement hole and a screw hole positioned outside the inner movement hole; and a substrate support member including a shaft body inserted into the insertion hole with one end of the shaft body and a pin shaft connected to the shaft body to support the substrate in contact, wherein the shaft body having an inner screw body inserted into the insertion hole and positioned in the inner movement hole and a connection body disposed between the inner screw body and the pin shaft and positioned in the screw hole, wherein the inner diameter of the screw hole is smaller than the diameter of the inner movement hole and the outer diameter of the inner screw body, the inner screw body is capable of passing through the screw hole by rotation.

Abstract: A predictive maintenance algorithm providing method for bus maintenance priority determination according to the present invention includes operations of (a) grouping and classifying, by a data processing unit of an operational server, a plurality of buses to be monitored according to preset classification criteria, (b) receiving, by a monitoring unit of the operational server, bus monitoring information including a plurality of types of data collected by vehicle information collection devices installed on the buses for each group classified according to the operation (a), (c) performing, by the data processing unit, refinement on the bus monitoring information, (d) inputting, by the data processing unit, the bus monitoring information refined in the operation (c) as training data for an artificial intelligence machine to build an artificial intelligence model for determining bus maintenance priorities, (e) re-receiving, by the monitoring unit, the bus monitoring information collected by the vehicle informatio

Abstract: An energy-storage device may be provided by a module case in which a plurality of accommodation spaces are formed; a plurality of bare cells which are accommodated in the accommodation spaces respectively; and a cover which is coupled to the module case so as to cover the accommodation spaces, wherein: the module case comes into direct contact with the bare cells accommodated in the respective accommodation spaces to support the bare cells; and for each of the accommodation spaces, a pressure absorption ratio obtained by calculating the ratio of the volume of the bare cell to the volume of the accommodation space is 95% or less.

Abstract: The present invention relates to an apparatus and a method for inspecting battery cells for automation of total inspection. To this end, the present invention is configured such that test objects are sequentially stacked on a test object casing provided on an upper portion of a mounting stage of a main stage, images of the test objects are obtained by radiography after the test object casing is moved to a test object inspection unit, and the test objects stacked on the test object casing are unloaded to the outside after the images are obtained. Accordingly, the present invention enables total inspection to be performed on battery cells, which are the test objects, in order to quickly divide good and defective products, and solves a delay of a flow rate caused by X-ray inspection of the test object inspection unit in order to improve productivity and efficiency.

Abstract: The present invention relates to an apparatus and a method for inspecting battery cells for automation of total inspection. To this end, the present invention is configured such that test objects are sequentially stacked on a test object casing provided on an upper portion of a mounting stage of a main stage, images of the test objects are obtained by radiography after the test object casing is moved to a test object inspection unit, and the test objects stacked on the test object casing are unloaded to the outside after the images are obtained. Accordingly, the present invention enables total inspection to be performed on battery cells, which are the test objects, in order to quickly divide good and defective products, and solves a delay of a flow rate caused by X-ray inspection of the test object inspection unit in order to improve productivity and efficiency.