Cathode containing solid superacid and lithium-sulfur secondary battery including the same

    公开(公告)号:US10700342B2

    公开(公告)日:2020-06-30

    申请号:US16103044

    申请日:2018-08-14

    Abstract: The present invention relates to a cathode containing a solid superacid to improve the electrochemical properties and lifetime properties of the cathode using sulfur as an active material, and to a lithium-sulfur secondary battery including the cathode. According to an embodiment, a cathode for a lithium-sulfur secondary battery contains sulfur and a solid superacid. Since the solid superacid in the cathode does not affect the electrochemical properties of the cathode containing sulfur, it is possible to utilize sulfur itself as the cathode active material without technical processing. As a result, it is possible to minimize a reduction in the energy density of the lithium-sulfur secondary battery. In addition, the solid superacid in the cathode can improve the long-term lifetime properties of the lithium-sulfur secondary battery by controlling the polysulfide which is an intermediate product of the charging and discharging reactions of lithium and sulfur.

    METHOD FOR MONITORING 3D PRINTING EQUIPPED WITH 3D PRINTING SLICER AND RECURSIVE LOOP STRUCTURE

    公开(公告)号:US20200023586A1

    公开(公告)日:2020-01-23

    申请号:US16499370

    申请日:2018-03-27

    Abstract: Provided is a method for monitoring 3D printing equipped with a 3D printing slicer and a recursive loop structure. A 3D printing method according to an embodiment of the present invention sets up a slicing environment for 3D printing of a 3D model, generates a mechanical code by performing slicing according to the setup environment, monitors the status of the 3D printing according to the generated mechanical code, and, depending on the monitoring result, determines whether or not to re-perform the setup and subsequent steps. Accordingly, by semi- or fully automating the 3D printing engineering process, the time and effort for engineering performance involving human participation are reduced, and the human resource is concentrated on a more important area, such that the effects of enhancing the 3D printing output quality and assuring the quality can be expected.

    METHOD AND SYSTEM FOR AUTOMATIC IMAGE CAPTION GENERATION

    公开(公告)号:US20190286931A1

    公开(公告)日:2019-09-19

    申请号:US16043338

    申请日:2018-07-24

    Abstract: A method and a system for automatic image caption generation are provided. The automatic image caption generation method according to an embodiment of the present disclosure includes: extracting a distinctive attribute from example captions of a learning image; training a first neural network for predicting a distinctive attribute from an image, by using a pair of the extracted distinctive attribute and the learning image; inferring a distinctive attribute by inputting the learning image to the trained first neural network; and training a second neural network for generating a caption of an image by using a pair of the inferred distinctive attribute and the learning image. Accordingly, a caption well indicating a feature of a given image is automatically generated, such that an image can be more exactly explained and a difference from other images can be clearly distinguished.

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