Electronics and Telecommunications Research Institute

Lg Chem, Ltd

Lg Energy Solution, Ltd.

Ls Mtron Ltd.

Yong Tae Lee

Myung Hoon Ko

Young Il Kim

Eui Suk Jung

Jee Ho Kim

Hyun Woo Lee

Je Young Kim

Heung Mook Kim

Jong Soo Lim

Geon Min Yeo

Hyoung Soo Lim

Dae Geun Park

Eun Jung Kwon

Jung Il Park

Hong-Kyu Park

Won Geun Ryu

Soo In Lee

Sung Ik Park

Young Soo Park

Sang Hoon Choy

Hong Kyu Park

Sung Kyun Chang

Soon Ho Ahn

Jung Hak Kim

Sinyoung Park

Sung-Hoon Kim

Cheol-Hee Park

Ji Eun Lee

Gyung Soo Kang

Jae Hyun Seo

Ki Youn Kim

Hyun Ho Park

Ki S Park

Sung Won Byon

Kwang Y Oh

Pil Kyu Park

Ho Min Eum

Sun Hwa Lim

Soon Yong Song

Sang B Kim

Dong Man Jang

Chan Woo Park

Sung-Kyun Chang

Yong Hoon Lee

Geun Chang Chung

Seung-Tae Hong

Jeeho Kim

Young Sun Choi

Soo Min Park

Hyunho Park

Hyun Kuk Noh

Won Joo Park

Seung Hee Kim

Hyo-Shik Kil

Hyoung-Nam Kim

Sin Kyu Kim

Kwan Hong Bae

Seok Je Kim

Sang Yun Lee

Sanghoon Choy

YoungHwa Jung

Myung Sun Baek

Sun Jung Hwang

Sungwon Byon

Keun Wan An

Seung Won Kim

Won-Jae Shin

Seung Byung Lee

Ah Ram Park

Soo An Choi

Gyungsoo Kang

Ju Dam Kim

An apparatus and method for welding electrode tabs protruding from an electrode assembly to each other which may include a guide part configured to gather the electrode tabs on a predetermined gathering area, a welding part configured to weld the electrode tabs gathered by the guide part, and a bending part configured to bend the electrode assembly. The bending part ensures that a length from the electrode assembly to the gathering area increases in at least a portion of the electrode tabs before being welded by the welding part. Accordingly, some aspects of the present invention may prevent the electrode tabs from disconnecting. Moreover, the present invention also relates to a secondary battery and may relate to a secondary battery manufactured by the above-described welding apparatus or method.

Apparatus for welding electrode tabs, method for welding electrode tabs, and secondary battery

A secondary battery having an electrode assembly in which a positive electrode, a separator, and a negative electrode are alternately stacked, and a can configured to accommodate the electrode assembly is provided. The negative electrode is disposed on an end of the electrode assembly in a direction of one side of the electrode assembly so that a negative electrode non-coating portion protrudes more than the separator with respect to a direction of a winding center axis of the electrode assembly. The positive electrode is disposed on an end of the electrode assembly in a direction of the other side of the electrode assembly so that a positive electrode non-coating portion protrudes more than the separator with respect to the direction of the winding center axis of the electrode assembly. The can includes a first can contacting the positive electrode and a second can contacting the negative electrode.

Secondary battery

A slot die coating apparatus according to one embodiment of the present disclosure includes: a slot die containing a first die block and a second die block, and a sensor unit for measuring the flow rate of an electrode active material slurry which is discharged through a discharge port formed by the coupling of the first die block and the second die block, wherein the sensor unit is formed inside the first die block, and the sensor unit is connected to the discharge port via an energy dissipation part and an energy absorption part.

Slot die coating apparatus

A crime type inference system based on text data, may include: a keywords dictionary construction unit configured to receive crime source data, and generate a crime type keywords dictionary by extracting crime keywords; a data set construction unit configured to generate a dataset for crime type learning by using the crime source data and the keywords dictionary; a crime type prediction model training unit configured to generate a crime type prediction model by using the dataset, and train the crime type prediction model; and a crime type inference unit configured to infer a crime type by using new crime data.

Crime type inference system and method based on text data

A secondary battery comprises an electrode assembly including a first electrode, a separator, and a second electrode alternately stacked and wound about a central axis. A first non-coating portion that is not coated with an electrode active material protrudes farther than the separator in a first direction along the central axis and a second non-coating portion that is not coated with the electrode active material protrudes farther than the separator in a second, opposite direction along the central axis. The first non-coating portion contacts a first connection part disposed on an end of a first can of the battery, and the second non-coating portion contacts a second connection part disposed on an end of a second can. At least one of the first connection part or the second connection part comprises a protrusion having a shape protruding towards the electrode assembly.

The present invention relates to a method and an apparatus for diagnosing low voltage of a secondary battery cell. The method for diagnosing low voltage of a secondary battery cell according to an embodiment of the present invention includes pre-aging a battery cell, charging the battery cell according to a preset charging condition, measuring a parameter for determining low voltage failure of the battery cell, comparing the measured parameter with a reference parameter, and performing formation when the battery cell is determined to be normal.

Method and apparatus for diagnosing low voltage of secondary battery cell

A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.

Provided are an object tracking system and an object tracking method. The object tracking system includes: a terminal identifier and reference time providing module configured to receive an identifier of a terminal and a reference time for tracking an object corresponding to the identifier; a cross-CCTV detection module configured to detect a cross-CCTV for the terminal by using a CCTV installation information and a location of the terminal before the reference time; a basic image detection module configured to detect an object repeatedly appearing in the cross-CCTV as a basic image; a current-CCTV detection module configured to detect a current-CCTV currently recording the terminal by detecting a location and a moving direction of the terminal after the reference time; an object detection module configured to detect an object appearing in the current-CCTV based on the location and the moving direction of the terminal after the reference time; and an object tracking module configured to track an object corresponding to the identifier by determining whether the detected object from the current-CCTV and the basic image.

Object tracking system and object tracking method

A secondary battery according to the present invention comprises: an electrode assembly in which a first electrode, a separator, and a second electrode are alternately stacked and wound together; a can provided with an accommodation part that accommodates the electrode assembly therein, the can comprising a first can and a second can, which have cylindrical shapes opened in a direction facing each other; and an insulator configured to insulate an overlapping portion between the first can and the second can. The first can forms a first electrode terminal that directly contacts an end of the first electrode, and the second can forms a second electrode terminal that directly contacts an end of the second electrode.

An apparatus for manufacturing a battery cell to enhance the electrolyte wettability to an electrode assembly in the battery cell is provided. The apparatus includes a battery cell tray in which one or more preliminary battery cells are housed and an excitation unit which makes a contact opposite to contacting one side of the battery cell tray to apply megasonic vibration to the preliminary battery cell in a state in which the preliminary battery cell is housed. A method for manufacturing a battery cell using the apparatus is also provided.

Apparatus for manufacturing battery cell to enhance electrode wetting through vibration, and manufacturing method of battery cell using the same

Disclosed is a method of processing an object in an image and a system for the same. According to an embodiment of the present disclosure, there is provided a method of processing an object in an image, the method including: detecting a first object from a first image obtained by a first network camera; detecting a second object from a second image obtained by a second network camera; checking similarity between the first and second objects in consideration of feature information of the first and second objects, installation location information of the first and second network cameras, and location information of a terminal device; and determining whether the first object is equal to the second object on the basis of the similarity between the first and second objects.

Method of processing object in image and apparatus for same

Provided is a composite electrode for a lithium secondary battery for improving output and a lithium secondary battery including the composite electrode, in which, in a composite electrode having two or more active materials mixed therein, an active material having a small particle size is included in the composite electrode by being coagulated and secondarily granulated so as to allow mixed active material particles to have a uniform size, and thus, electrical conductivity is improved to have high output characteristics.

Active material for lithium secondary battery composite electrode for improving output and lithium secondary battery including the active material

A channel allocation system for accommodating a plurality of nodes in a sensor network includes a PAN coordinator generating channel allocation information and CSMA idle information and transmitting a beacon including the channel allocation information and the CSMA idle information; and at least one node receiving the beacon, determining whether the contention period is in idle state based on the extracted channel allocation information and the CSMA idle information, determine a transmission time, an operation state in a reception interval, how to process received data by determining whether a channel is allocated based on whether the contention period is in idle state, and operating according to the determination result.

Channel allocation system and method for accommodating multiple nodes in sensor network

A dynamic packet relay method of a personal area network (PAN) coordinator in a sensor network includes receiving a Child_Register message that includes information about a device associated with a coordinator and building or updating a network hierarchical structure; monitoring reception of a packet or a beacon from the coordinator and determining whether the coordinator is defective or not; and in response to a determination that the coordinator is defective, changing the current coordinator to one of devices belonging to a PAN as a new coordinator.

Dynamic packet relay apparatus and method for sensor network

An apparatus for dynamically configuring a wireless sensor relay network for monitoring train activity according to the present invention includes a plurality of wireless sensors that wirelessly transmit sensor data obtained by measuring heat and vibration of a train running unit, a plurality of coordinator units that are located in train cars, and receive the sensor data from one or more wireless sensors located within the same train car, a plurality of wireless relay units that are located in the train cars, form a wireless sensor relay network with the wireless relay unit located in a neighboring train car, and transmit the sensor data received from the coordinator units, and a gateway unit that receives the sensor data from the plurality of wireless relay units through the wireless sensor relay network, and transmits the received sensor data to a control center.

Apparatus and method for dynamically configuring wireless sensor relay network for monitoring train activity

Growing community of inventors

Daejeon-si, South Korea

Yong Tae Lee