公开(公告)号：US20240274823A1

公开(公告)日：2024-08-15

申请号：US18646276

申请日：2024-04-25

Applicant: LG Energy Solution, Ltd.

Inventor： Seong-Wook Kang ,  Jae-Sung Han ,  Dong-Mok Shin ,  Dong-Oh Shin ,  Kyung-Hwan Yoon ,  Kwang-Ho Yoo

IPC: H01M4/62 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/0416 ,  H01M4/0435 ,  H01M10/0525

Abstract: Disclosed is a method for manufacturing a dry electrode. The method allows determination of the micro-fibrilization degree of a binder resin from the crystallinity of the binder resin. Based on this, the processing conditions of mixed powder for electrode or an electrode film may be controlled. In this manner, it is possible to check and control the processing conditions easily and efficiently. In addition, the method for manufacturing a dry electrode includes a kneading step using a kneader under a low speed and high temperature and pulverization step. Therefore, there is no problem of blocking of a flow path caused by aggregation of the ingredients, which is favorable to mass production.

公开(公告)号：US20240266542A1

公开(公告)日：2024-08-08

申请号：US18690925

申请日：2023-04-20

Applicant: LG Energy Solution, Ltd.

Inventor： Seong-Wook Kang ,  Jae-Sung Han ,  Sang-Min Kwak ,  Kyung-Hwan Yoon ,  Dong-Oh Shin ,  Ki-Seok Lee ,  Kwang-Ho Yoo ,  Nam-Jeong Lee

IPC: H01M4/62 ,  C08J3/22 ,  C08K3/04 ,  C08L27/16 ,  H01M4/02 ,  H01M4/04 ,  H01M4/139

CPC classification number: H01M4/623 ,  C08J3/226 ,  C08K3/041 ,  C08L27/16 ,  H01M4/0404 ,  H01M4/139 ,  H01M4/625 ,  C08J2327/16 ,  C08J2427/18 ,  C08K2201/001 ,  C08K2201/003 ,  C08K2201/006 ,  C08K2201/011 ,  C08L2205/025 ,  C08L2310/00 ,  H01M2004/021

Abstract: The present disclosure relates to a conductive material master batch for use in an electrode and an electrode obtained by using the same. The electrode obtained by using the conductive material master batch has an electrode resistance of 55 ohm·cm or less.

公开(公告)号：US20250125367A1

公开(公告)日：2025-04-17

申请号：US18833496

申请日：2023-01-30

Applicant: LG Energy Solution, Ltd.

Inventor： Hak-Yoon Kim ,  Seong-Wook Kang ,  Dong-Oh Shin ,  Nam-Jeong Lee ,  Moon-Soo Park

IPC: H01M4/62 ,  H01M4/02 ,  H01M10/052

Abstract: Provided is a secondary battery including: a positive electrode including a positive electrode current collector and a positive electrode active material layer located on the positive electrode current collector and including a positive electrode active material, a positive electrode conductive material and a positive electrode binder, wherein the positive electrode binder is fiberized and binds the positive electrode active material and the positive electrode conductive material; a negative electrode including a negative electrode current collector and a negative electrode active material layer located on the negative electrode current collector and including a plurality of granules including a negative electrode active material and a negative electrode binder, and formed as the negative electrode binder binds the negative electrode active material; and a separator disposed between the positive electrode and the negative electrode.

公开(公告)号：US12002962B2

公开(公告)日：2024-06-04

申请号：US17881879

申请日：2022-08-05

Applicant: LG Energy Solution, Ltd.

Inventor： Seong-Wook Kang ,  Jae-Sung Han ,  Dong-Mok Shin ,  Dong-Oh Shin ,  Kyung-Hwan Yoon ,  Kwang-Ho Yoo

IPC: H01M4/62 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/0416 ,  H01M4/0435 ,  H01M10/0525

Abstract: Disclosed is a method for manufacturing a dry electrode. The method allows determination of the micro-fibrilization degree of a binder resin from the crystallinity of the binder resin. Based on this, the processing conditions of mixed powder for electrode or an electrode film may be controlled. In this manner, it is possible to check and control the processing conditions easily and efficiently. In addition, the method for manufacturing a dry electrode includes a kneading step using a kneader under a low speed and high temperature and pulverization step. Therefore, there is no problem of blocking of a flow path caused by aggregation of the ingredients, which is favorable to mass production.

公开(公告)号：US20230042207A1

公开(公告)日：2023-02-09

申请号：US17881879

申请日：2022-08-05

Applicant: LG Energy Solution, Ltd.

Inventor： Seong-Wook Kang ,  Jae-Sung Han ,  Dong-Mok Shin ,  Dong-Oh Shin ,  Kyung-Hwan Yoon ,  Kwang-Ho Yoo

IPC: H01M4/62 ,  H01M4/04 ,  H01M10/0525

Abstract: Disclosed is a method for manufacturing a dry electrode. The method allows determination of the micro-fibrilization degree of a binder resin from the crystallinity of the binder resin. Based on this, the processing conditions of mixed powder for electrode or an electrode film may be controlled. In this manner, it is possible to check and control the processing conditions easily and efficiently. In addition, the method for manufacturing a dry electrode includes a kneading step using a kneader under a low speed and high temperature and pulverization step. Therefore, there is no problem of blocking of a flow path caused by aggregation of the ingredients, which is favorable to mass production.