Abstract: A vehicle thermal management system including a heating heat exchanger which exchanges heat with air within an air-conditioning case to heat the air, and a cooling heat exchanger which exchanges heat with air to cool the air; a refrigerant line circulating through a compressor, a condenser, an expansion valve, and a chiller; a first coolant line that passes through the heating heat exchanger and exchanges heat with the condenser of the refrigerant line; a second coolant line that passes through the cooling heat exchanger and exchanges heat with the chiller of the refrigerant line; a radiator that exchanges heat between the coolant and outside air; a third coolant line that passes through the radiator and exchanges heat with a battery of a vehicle; and a mixing tank provided to mix the coolant of the first coolant line, the second coolant line, and the third coolant line.

Abstract: A heat management system including a refrigerant circulation line including a compressor, a water-cooling condenser, an air-cooling condenser, a first expansion valve, an evaporator, a refrigerant heat exchanger, and a gas/liquid separator that discharges only a liquid refrigerant, and cooling an indoor place by circulating a refrigerant; a heating line for heating the indoor place by circulating, through the water-cooling condenser, cooling water that exchanges heat with the refrigerant; and a cooling line for cooling a battery and an electrical component by circulating air or cooling water that exchanges heat with the refrigerant. Therefore, the present invention can not only cool and heat a vehicle but also efficiently manage heat for an electrical component and a battery in a vehicle, and can reduce the number of constituent components for heating and cooling.

Abstract: A high-nickel positive electrode active material and a method of making the same is disclosed herein. In some embodiments, the material includes a lithium transition metal oxide, wherein the lithium transition metal oxide is secondary particles, wherein each secondary particle is an aggregate of primary particles, and wherein the oxide has an amount of nickel of 80 atm % or more, a first coating layer formed on a surface of the secondary particle and on surfaces of a portion or all of the primary particles, the first coating layer contains nickel and manganese, and has a layered structure, and a second coating layer formed on an outer surface of the first coating layer, the second coating layer contains boron. The active material has improved stability and initial capacity and crack generation at an interface between primary particles is also suppressed.

Abstract: Disclosed is a battery disposal apparatus including a cutting part configured to cut and divide a battery, and a discharging part configured to immerse and discharge divided pieces of the battery cut and divided in the cutting part in a discharging solution. The cutting part is configured to incise or cut the battery in a preset pattern by water jet. In addition, disclosed is a battery disposal method in which the battery is cut by using the water jet described above and is discharged.

Abstract: A driving system includes a central controller, a plurality of driving paths forming a least crossing position, and a plurality of autonomous driving devices configured to drive along at least one of the driving paths through the crossing position. The central controller is configured to determine a plurality of target driving devices from among the autonomous driving devices that are within a certain range of the crossing position, designate one of the target driving devices as a master driving device and the other of the target driving device as slave driving devices. The master driving device controls passage of the slave driving devices through the crossing position.

Abstract: A driving system includes a central controller, a plurality of driving paths forming a least crossing position, and a plurality of autonomous driving devices configured to drive along at least one of the driving paths through the crossing position. The central controller is configured to determine a plurality of target driving devices from among the autonomous driving devices that are within a certain range of the crossing position, designate one of the target driving devices as a master driving device and the other of the target driving device as slave driving devices. The master driving device controls passage of the slave driving devices through the crossing position.

Abstract: The present invention relates to a termite repellent composition, and more specifically, to a selective termite repellent composition, which does not cause side effects such as environmental pollution by using plant-based materials, and which eliminates termites but not other ants. To this end, the selective termite repellent composition according to the present invention simultaneously comprises citronella oil, lemongrass oil, and a ginko leaf extract.

Abstract: The present invention relates to a termite repellent composition, and more specifically, to a selective termite repellent composition, which does not cause side effects such as environmental pollution by using plant-based materials, and which eliminates termites but not other ants. To this end, the selective termite repellent composition according to the present invention simultaneously comprises citronella oil, lemongrass oil, and a ginko leaf extract.

Abstract: A cordless complex root canal plugger for dental clinics is disclosed. The root canal plugger includes a battery charger; a pen-type vertical spreader having a rechargeable battery unit and a control unit therein; and a gun-type injection device having both a rechargeable battery unit and a control unit therein. The battery charger, the pen-type vertical spreader and the gun-type injection device are provided as a group of complementary products. The cordless complex root canal plugger allows an endodontist to move freely in a dental clinic while executing a root canal plugging procedure using the cordless complex root canal plugger during nerve treatment. Thus, the endodontist can more easily, rapidly and precisely pack a root canal with a filler material and, therefore, the cordless complex root canal plugger induces en-dodontists to buy it.