Electronics and Telecommunications Research Institute

Lg Energy Solution, Ltd.

Lg Chem, Ltd

Korea Research Institute of Standards and Science

Agency for Defense Development

Intellectual Discovery Co., Ltd.

Chung, Hyun Kyu

Woo Yong Lee

Yong Sun Kim

Hyoung Jin Kwon

Seung Eun Hong

Kyeongpyo Kim

Hyun Kyu Chung

Jin Kyeong Kim

Kap Seok Chang

Sung Geun Jin

Sung-Geun Jin

Kapseok Chang

Shin Hwa Lee

Min Su Kim

Hyang Mok Lee

Mun Geon Kyeong

Tai Joon Seo

Jeoung Hwan Kim

Mi Jung Yoo

Young-Hoon Kim

Kieun Sung

Byung Heon Shin

Dongyong Lee

Jae Sup Lee

Sung Hyun Kim

Ye Hoon Im

Min Jung Kim

Seung Joon Lee

Seung Jae You

WonChan Park

Dong Hun Song

Kyung Joong Kim

Min Taig Kim

Kyeong Pyo Kim

Tae Young Moon

Seung Hui Hong

Sang Hun Shin

Young Hoon Lee

Heon Suk Hong

Cheol Sig Pyo

Tae Hyun Kim

Nae-Soo Kim

Sung Woo Choi

Hyun Tae Kim

Hee Han

Sang Woo Kang

Byung Jun Ahn

Tai Jin Jung

Young-Chai Ko

Yun Ho Choi

Dong Hee Sul

Seung Yong Hwang

Jung Kyu Woo

Chun Ho Kwon

Wan Soo Yun

Sung Gyu Kim

Jae Hee Park

Won Cheol Lee

Hyung Min Chang

Meejoung Kim

Seung Cheol Choi

HyunSang Park

Hyun Il Kim

Kyeong-pyo Kim

Ki Hyun Park

Young Ro Kim

Young Heon Kim

Yong Sung Kim

Dai Hien Li

Hyun Ii Kim

Jong Hwa Park

Jae Hoon Yoo

Jong Hwa Choi

Jeong Ho Shin

Seung Ku Hwang

The present invention relates to a pouch-shaped battery case manufacturing method including (a) locating a laminate sheet for pouch-shaped battery cases on a lower press die, (b) pressing the laminate sheet using an upper press die to form an electrode assembly receiving portion, (c) forming a venting guide portion in the bottom of the electrode assembly receiving portion, and (d) separating a pouch-shaped battery case having the electrode assembly receiving portion and the venting guide portion formed therein from the lower press die.

Method of manufacturing pouch-shaped battery case having venting guide portion formed therein and pouch-shaped battery case manufactured by the method

The present invention relates to a method for manufacturing an electrode assembly. The method for manufacturing the electrode assembly comprises: a step (a) of transferring a plurality of radical units one by one from a first set position to a second position; a step (b) of measuring a distance between a full width end that is an end of the first electrode in a full width direction and a full width end that is an end of the second electrode in a full width direction; a step (c) of measuring a distance (B) from a reference point (O) of the second set position to the full width end of the first electrode of the first radical unit; a step (d) of stacking the second radical unit on the first radical unit; a step (e) of measuring a distance (B) from the reference point (O) of the second set position to the full width end of the first electrode of the second radical unit; a step (f) of measuring a distance (C) between the full length end of the first electrode of the first radical unit and the full width end of the second electrode of the second radical unit by adding the distances (B, A) to each other and subtracting the distance (B) from the sum of the distances (B, A); and a step (g) of comparing the distances (C, A) to each other to determine whether stacking is defective.

Apparatus and method for manufacturing electrode assembly and method for manufacturing secondary battery comprising the same

A method for manufacturing a secondary battery includes an electrode assembly preparation step of preparing an electrode assembly on which flat top and bottom surfaces are formed, a first pressing step of pressing the top and bottom surfaces of the electrode assembly by using a first pressing device, on which a curved surface is formed, to form a curved surface, which has a shape corresponding to that of the curved surface formed on the first pressing device, on each of the top and bottom surfaces of the electrode assembly, an accommodation step of accommodating the electrode assembly in a pouch type exterior in which a cup having a concave shape is formed, and a second pressing step of pressing the curved surfaces of the top and bottom surfaces of the electrode assembly and an outer surface of the pouch type exterior by using a second pressing device.

Secondary battery and method for manufacturing the same

A secondary battery, a method for manufacturing the secondary battery, and a battery pack including the secondary battery is provided. The secondary battery has a curved surface that is manufactured without a separate pressing process for forming the curved surface.

Secondary battery, method for manufacturing the secondary battery, and battery pack comprising the secondary battery

An electrode assembly is manufactured by a process. The electrode assembly comprises an anode sheet and an anode having improved stacking characteristics of an electrode based on a shoulder portion. The shoulder portion is solid. The shoulder portion is thicker than a conventional electrode tab and has no light reflection with the application of an active material when the electrode assembly is formed, including during notching, cutting of a single electrode, and stacking.

Electrode assembly comprising anode sheet and anode having improved stacking characteristics of electrode, and method of manufacturing the same

A pouch-type secondary battery according to an embodiment of the present invention for solving the above problems includes a cup part configured to accommodate an electrode assembly formed by stacking electrodes and separators, wherein the cup part includes: a bottom portion configured to form a bottom; an outer wall configured to form a side surface and meet the bottom portion; a punch edge configured to connect the bottom portion to the outer wall; a thickness edge configured to connect two adjacent outer walls to each other; and a corner formed by connecting the two adjacent punch edges to the thickness edge, wherein at least one of the punch edges is rounded, at least one of the thickness edge is rounded, at least one of the corner is rounded and has a curvature radius different from that of each of the punch edge and the thickness edge.

Pouch type battery case and apparatus for manufacturing the same, and pouch type secondary battery

A method for manufacturing an electrode assembly includes a unit cell grasping step of moving a movable gripper to grasp a unit cell having an electrode and a separator, a vision measurement step of vision-measuring a full width value of the unit cell, and an input step of determining a width difference between the full width value of the unit cell and a set width value stored in a memory, and moving the unit cell by the movable gripper while taking into account the width difference to seat the unit cell on the separation film. A method for manufacturing a secondary battery includes a manufacturing step of manufacturing an electrode assembly according to the above, and an accommodation step of accommodating the folded electrode assembly in a battery case.

Method for manufacturing electrode assembly and method for manufacturing secondary battery

A method for manufacturing the electrode assembly includes: a first step of preparing a plurality of radical units, each of which is manufactured by alternately stacking an electrode and a separator; a second step of stacking the plurality of radical units to manufacture an electrode stack; and a third step of pressing an outer surface of the electrode stack to manufacture an electrode assembly on which a curved surface having a curvature radius is formed on the electrode stack, wherein, when the sum of bonding force remaining after the third step among bonding force between the electrode and the separator as bonding force generated before the third step is defined as F1, the sum of force by which the electrode and the separator are spread again so that shapes of the electrode and the separator return to shapes before the electrode stack is pressed in the third step is defined as R, and the sum of bonding force additionally generated between the electrode and the separator within the electrode assembly by the third step is defined as F2, expression: F1+R&#x2264;F2 is satisfied.

Method for manufacturing electrode assembly

An electrode assembly in which a positive electrode and a negative electrode are alternately stacked, and a separator is disposed between the positive and negative electrodes comprises: a folding unit, a negative electrode unit, and a positive electrode unit alternately inserted between layers of the separator of which one side and the other side are alternately folded in a zigzag shape in a direction perpendicular to a direction in which the positive electrode and the negative electrode are stacked; and a stacking unit in which the positive electrode, the separator, and the negative electrode, each of which is cut by a predetermined size, are sequentially stacked. The folding unit having a Z-folding structure and the stacking unit having a lamination & stacking structure may be bonded to each other. Thus, the positive electrode may increase in area relative to the negative electrode in the folding unit to increase in capacity.

Electrode assembly

Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.

Method for wideband short-range wireless communication using a directional antenna

An electrode assembly including an electrode stack including a plurality of radical units including an electrode and a separator and having a structure in which the plurality of radical units are sequentially stacked, wherein at least a portion of a circumference of the electrode stack is surrounded by the separator, a curved surface having a curvature radius is formed on a top or bottom surface of the electrode stack, and the separator surrounding at least the portion of the circumference of the electrode stack surrounds the curved surface formed on the electrode stack to maintain a relative distance between the radical units adjacent to each other is provided. A method of forming the electrode assembly is also provided.

Electrode assembly and method for manufacturing the same

To solve the above problems, a pouch molding method according to an embodiment of the present invention includes: a seating step of seating a pouch film on a top surface of a die; a stripper descending step of allowing a stripper disposed above the die to descend; a fixing step of fixing the pouch film using the stripper; a molding preparation step of allowing a Blank holder disposed at a central portion of the die to ascend to contact one surface of the pouch film and allowing a punch disposed at a central portion of the stripper to descend to contact the other surface of the pouch film; and a molding step of allowing the punch and the Blank holder to descend along with each other to form a cup part in the pouch film.

Pouch molding method and apparatus

Disclosed herein is a battery cell including an electrode assembly having a positive electrode, a negative electrode, and a separator interposed therebetween, a battery case including an upper case and a lower case, corresponding portions of outer edges of the upper case and the lower case being thermally fused to one another in a state in which the electrode assembly is received in a reception unit formed by the upper case and the lower case such that the battery case has a sealed portion extending around the reception unit, an electrode lead electrically connected to the electrode assembly, the electrode lead protruding outwards from the battery case through the sealed portion in the state in which insulative films are attached to opposite surfaces of the electrode lead at the sealed portion, and a shape retention member interposed between the outer edges of the upper case and the lower case.

Battery cell including shape retention member

A scheduling method of giving a chance for transmission to a plurality of terminals in the same time period, and a device therefor are provided. The scheduling method includes: transmitting first scheduling information to terminals in a network, the first scheduling information defining transmitting/receiving terminals and a transmission time period; receiving channel measurement information including inter-terminal interference information from the terminals in the network; and generating second scheduling information defining transmission time periods and a plurality of transmitting/receiving terminals that do not interfere with each other by using the channel measurement information.

Scheduling method and apparatus for spatial reuse

Disclosed herein is a battery cell including a battery case having an initial position and an assembled position, and an electrode assembly. The electrode assembly may include a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The electrode assembly may be mounted in the battery case in the assembled position. The battery case may include a first receiving unit and a second receiving unit formed in the battery case and spaced apart from each other when the battery case is in the initial position, the first and second receiving units receiving a respective portion of the electrode assembly when the battery case is in the assembled position, and a bridge region having a recessed portion that is recessed in a direction identical to the depth direction of each of the receiving units when the battery case is in the initial position.

Battery cell having recessed portion formed in connection region between receiving units

Growing community of inventors

Daejeon, South Korea

Woo Yong Lee