Patents Assigned to AEKYUNG CHEMICAL CO., LTD.
  • Patent number: 10340522
    Abstract: A binder composition for a lithium secondary battery, an electrode, and a lithium secondary battery, the binder composition including an interpenetrating network structure that includes a cyclic polymer, the cyclic polymer including a repeating unit represented by Formula 1 or a repeating unit represented by Formula 2; and a copolymer, the copolymer including a repeating unit represented by Formula 3 and a repeating unit represented by Formula 4, wherein an amount of the repeating unit represented by Formula 3 is about 40 mol % to about 70 mol %, based on a total amount of the copolymer:
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 2, 2019
    Assignees: SAMSUNG SDI CO., LTD., Aekyung Chemical Co., Ltd.
    Inventors: Soonsung Suh, Seunguk Kwon, Jaehyuk Kim, Namseon Kim, Soojung Kim, Kwangshik Choi
  • Patent number: 9768448
    Abstract: A binder composition for a rechargeable lithium battery includes: an interpenetrating polymer network (IPN) structure including a cyclic polymer including a structural unit represented by Chemical Formula 1 or a structural unit represented by Chemical Formula 2, and polyacrylamide. A method of preparing the same, and an electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are also disclosed. In Chemical Formulae 1 and 2, R1 to R3, R11 to R16, and n and m are the same as defined in the detailed description.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: September 19, 2017
    Assignees: Samsung SDI Co., Ltd., Aekyung Chemical Co., Ltd.
    Inventors: Byung-Joo Chung, Yeon-Hee Yoon, Nam-Seon Kim, Kwang-Sik Choi, Soo-Jung Kim
  • Patent number: 9434682
    Abstract: Disclosed are a novel reactive mesogen compound having superior thermostability, high birefringence and a simple preparation process while possessing unique liquid crystal characteristics having molecular orientation by forming a polymer network through photopolymerization, and a method of preparing the same. The novel reactive mesogen compound according to the present invention is represented by Formula 3 below.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: September 6, 2016
    Assignee: Aekyung Chemical Co., Ltd.
    Inventors: Yoon-Tae Jeon, Do-Yeon Kim, Yun-Sun Do, Gi-Woo Lee, Hueong-Nam Park, Kwang-Sik Choi
  • Patent number: 9413012
    Abstract: A binder for a rechargeable lithium battery includes a copolymer having a weight average molecular weight of about 10,000 to about 500,000 and including a repeating unit represented by Chemical Formula X and a repeating unit represented by Chemical Formula Y-1: The binder may be used in preparing an electrode for a rechargeable lithium battery and a rechargeable lithium battery including the electrode exhibits improved stability, rate capability, and cycle-life.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: August 9, 2016
    Assignee: Aekyung Chemical Co., Ltd.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Nam-Seon Kim, Yang-Soo Kim, Kwang-Sik Choi
  • Patent number: 9406937
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2 and polyacrylamide, and polyalkylene glycol. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 2, 2016
    Assignee: AEKYUNG CHEMICAL CO., LTD.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Chang-Ui Jeong, Ha-Na Yoo, Nam-Seon Kim, Yang-Soo Kim, Kwang-Sik Choi
  • Patent number: 9368797
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2, and polyacrylamide. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: June 14, 2016
    Assignees: SAMSUNG SDI CO., LTD., AEKYUNG CHEMICAL CO., LTD.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Chang-Ui Jeong, Ha-Na Yoo, Nam-Seon Kim, Yang-Soo Kim, Kwang-Sik Choi
  • Publication number: 20150010816
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2 and polyacrylamide, and polyalkylene glycol. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Application
    Filed: December 23, 2013
    Publication date: January 8, 2015
    Applicants: AEKYUNG CHEMICAL CO., LTD, SAMSUNG SDI CO., LTD.
    Inventors: Byung-Joo CHUNG, Eon-Mi LEE, Seung-Uk KWON, Jae-Hyuk KIM, Soon-Sung SUH, Chang-Ui JEONG, Ha-Na YOO, Nam-Seon KIM, Yang-Soo KIM, Kwang-Sik CHOI
  • Publication number: 20150010815
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2, and polyacrylamide. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Application
    Filed: December 23, 2013
    Publication date: January 8, 2015
    Applicants: Aekyung Chemical Co., Ltd., SAMSUNG SDI CO., LTD.
    Inventors: Byung-Joo CHUNG, Eon-Mi LEE, Seung-Uk KWON, Jae-Hyuk KIM, Soon-Sung SUH, Chang-Ui JEONG, Ha-Na YOO, Nam-Seon KIM, Yang-Soo KIM, Kwang-Sik CHOI
  • Publication number: 20140272575
    Abstract: Embodiments are directed to a binder for a rechargeable lithium battery, the binder including a copolymer including a repeating unit represented by Chemical Formula X, a repeating unit represented by Chemical Formula Y-1, and a repeating unit represented by Chemical Formula Z, and lithium ions, where Chemical Formula X, Chemical Formula Y-1, and Chemical Formula Z are as described herein.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicants: AEKYUNG CHEMICAL CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Eon-Mi LEE, Byung-Joo CHUNG, Nam-Seon KIM, Yang-Soo KIM, Kwang-Sik CHOI
  • Publication number: 20140205899
    Abstract: A binder for a rechargeable lithium battery includes a copolymer having a weight average molecular weight of about 10,000 to about 500,000 and including a repeating unit represented by Chemical Formula X and a repeating unit represented by Chemical Formula Y-1: The binder may be used in preparing an electrode for a rechargeable lithium battery and a rechargeable lithium battery including the electrode exhibits improved stability, rate capability, and cycle-life.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 24, 2014
    Applicants: AEKYUNG CHEMICAL CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Nam-Seon Kim, Yang-Soo Kim, Kwang-Sik Choi