An apparatus for processing battery electrodes includes: a microwave applicator cavity with slots on opposite ends to allow a continuous sheet to move through the cavity in a first direction; a processing chamber constructed of microwave-transparent material, disposed within the applicator cavity and surrounding the continuous sheet, the processing chamber having slots to allow the continuous sheet to pass through it; a microwave power supply to deliver power to the applicator cavity; a source of heated gas providing a controlled gas flow through the processing chamber in a direction opposite the first direction; and, at least one non-contacting temperature measuring device positioned to measure a surface temperature at a selected location on the continuous sheet as it passes through the processing chamber. The apparatus is particularly suited for removing polar solvents from porous electrode coatings. A related method is also disclosed.

Embodiments of a self-cleaning jet tube may include an elongate hollow body that is generally rectangular in cross-section and tapered from an open first end to a second end generally opposite the first end. The elongate hollow body may have an upper wall, a lower wall, side walls, a plurality of apertures arranged along the upper wall, an end plate coupled with the walls at the second end, and at least one through-slot. A through-slot may be disposed through the end plate or a wall, between the end plate and a wall, or between two walls. The jet tube may be configured for use with the through-slot(s) open and unblocked, thereby allowing debris to be expelled from the jet tube during operation of the jet veneer dryer. Corresponding systems and method are also provided herein.

A drying device includes a plurality of drying sections configured to dry an object. Each of the plurality of drying sections includes a first electrode, a second electrode arranged to surround the first electrode in a plan view from a first direction toward the object, a first conductor configured to electrically connect a transmission line configured to transmit a high-frequency voltage and the first electrode, and a second conductor configured to electrically connect the transmission line and the second electrode. The plurality of drying sections include a first drying section and a second drying section. The first drying section and the second drying section are disposed to be adjacent to each other in a second direction, which intersects the first direction. A normal phase high-frequency voltage is applied to the first electrode of the first drying section and the second electrode of the second drying section.

The present invention relates to an apparatus for evaluating drying quality of an electrode, and the apparatus includes: an oven configured to provide a space in which an electrode is dried; a measuring unit configured to be positioned at an outlet of the oven and measure a color coordinate value of an electrode active material layer with respect to the dried electrode; and an determination unit configured to determine whether the electrode is dry from the color coordinate value, wherein the determination unit sets a reference value, and determines that a dry state of the electrode is defective if the measured color coordinate value is less than the reference value, and a difference between the measured color coordinate value and the reference value is more than a preset value.

The present invention relates to an apparatus for evaluating drying quality of an electrode, and the apparatus includes: an oven configured to provide a space in which an electrode is dried; a measuring unit configured to be positioned at an outlet of the oven and measure a color coordinate value of an electrode active material layer with respect to the dried electrode; and an determination unit configured to determine whether the electrode is dry from the color coordinate value, wherein the determination unit sets a reference value, and determines that a dry state of the electrode is defective if the measured color coordinate value is less than the reference value, and a difference between the measured color coordinate value and the reference value is more than a preset value.

An electrode manufacturing system is disclosed. In some implementations, the electrode manufacturing system may include a coating station configured to coat a coating material on a coating substrate traveling along a path, and a drying station configured to dry the coating material. The drying station may include at least one linear infrared lamp configured to irradiate the coating material with infrared light, and opposite ends of the infrared lamp may be disposed to be vertically aligned with opposite edges of the coating material.

Provided are an electrode plate drying device and a coating device, and relates to the technical field of batteries. The electrode plate drying device includes an oven, a first deflector roll, and a second deflector roll. The oven is configured to dry an electrode plate. The first deflector roll and the second deflector roll are disposed in the oven. The electrode plate winds around the first deflector roll and the second deflector roll. Positions of the first deflector roll and/or the second deflector roll in the oven are tunable so as to adjust a movement distance of the electrode plate in the oven.

An apparatus for heating three-dimensional printing filaments comprising a heating chamber including an insulation lining and spool holders mounted at a base of the heating chamber, a heater fan assembly mounted above the heating chamber, wherein the heater fan assembly comprises a powered fan and heater configured to heat air and circulate the heated air to the heating chamber, and a diverter situated between the heater fan assembly and the heating chamber, wherein the diverter splits and directs the heated air to the heating chamber through a pair of channels. The apparatus further comprising a plurality of exhaust ports at top sidewall portions and bottom sidewall portions of the heating chamber, wherein the plurality of exhaust ports allowing the heated air to escape from the heating chamber, and fitting adapters comprising apertures that allow filament material to be dispensed from the heating chamber.

An electrode sheet drying apparatus includes a drying structure including a transfer path through which an electrode sheet is transferred, and a plurality of rod-type lamps arranged parallel to each other along the transfer path and configured to radiate electromagnetic waves of a certain wavelength band to the electrode sheet transferred through the transfer path. The plurality of rod-type lamps include a first rod-type lamp having a length sufficient to cover both edge portions of the electrode sheet in a width direction and a central portion between the both edge portions, and a second rod-type lamp having a length less than the length of the first rod-type lamp and sufficient to cover only the central portion of the electrode sheet. An electrode manufacturing system using the same is also provided.

A negative electrode manufacturing device for lithium secondary battery that is capable of simultaneously performing crystal surface orientation and pre-drying of a carbon-based negative electrode active material at an edge end of a negative electrode slurry is provided. The negative electrode manufacturing device provides a drying part using light at an edge of a magnetic part that aligns the crystal surface of the carbon-based negative electrode active material. A negative electrode manufactured by the device has a high orientation of the crystal surface of the carbon-based negative electrode active material contained in a sliding region of the negative electrode active layer, and high uniformity of orientation between the sliding region and a flat region of the negative electrode active material.