Patents by Inventor Olga TSAY

Olga TSAY has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250210712
    Abstract: Disclosed are an electrolyte for lithium secondary batteries and a lithium secondary battery including the same. The electrolyte for lithium secondary batteries includes: a lithium salt; a non-aqueous organic solvent; a compound represented by Formula 1 disclosed in the specification; and a compound represented by Formula 2 disclosed in the specification.
    Type: Application
    Filed: November 22, 2022
    Publication date: June 26, 2025
    Inventors: Hongryeol Park, Yeji Yang, Sangwoo Park, Sundae Kim, Pavel SHATUNOV, Olga TSAY, Hyunbong Choi, Hyeonji Hwang, Dahyun Kim
  • Publication number: 20250192229
    Abstract: Provided are an additive represented by Chemical Formula 1, and a rechargeable lithium battery that includes an electrolyte including a non-aqueous organic solvent, a lithium salt, and the additive; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide. Details of Chemical Formula 1 are as described in the specification.
    Type: Application
    Filed: November 11, 2022
    Publication date: June 12, 2025
    Inventors: Dahyun KIM, Yeji YANG, Sangwoo PARK, Sundae KIM, Pavel SHATUNOV, Olga TSAY, Hyunbong CHOI, Hongryeol PARK, Hyeonji HWANG
  • Publication number: 20250158119
    Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and a salt additive including a sulfonyl group substituted with a perhalogenated alkyl group and a cyano group. In addition, a rechargeable lithium battery including the electrolyte is also disclosed.
    Type: Application
    Filed: July 8, 2024
    Publication date: May 15, 2025
    Inventors: Olga TSAY, Seunghyeon SON, SANGHOON KIM, TAE HYON BAE, Harim LEE, Youngkyeong SHIN, Sanghyung KIM
  • Publication number: 20250158121
    Abstract: A rechargeable lithium battery includes an electrolyte. The electrolyte comprises a non-aqueous organic solvent, a lithium salt, and an additive including an azide group and a sulfonyl group substituted with a halogen element.
    Type: Application
    Filed: August 6, 2024
    Publication date: May 15, 2025
    Inventors: Olga TSAY, SANGHOON KIM, TAE HYON BAE, Harim LEE, Youngkyeong SHIN, Seunghyeon SON, Sanghyung KIM
  • Publication number: 20250112279
    Abstract: Provided are an electrolyte additive for lithium secondary battery including a compound represented by Formula 1 below, an electrolyte for lithium secondary battery including the same, and a lithium secondary battery including the electrolyte. wherein, in Formula 1, R1 to R3 are as defined in the detailed description.
    Type: Application
    Filed: December 13, 2024
    Publication date: April 3, 2025
    Inventors: Olga TSAY, Hyejin PARK, Myungheui WOO, Hyunbong CHOI, Pavel SHATUNOV
  • Publication number: 20250038255
    Abstract: Disclosed are an electrolyte for a lithium secondary battery and a lithium secondary battery including the same, the electrolyte including: a lithium salt; an organic solvent; and an additive, wherein the additive includes an isocyanate-based additive and a carbonate-based additive, wherein the ratio of the weight of the carbonate-based additive to the weight of the isocyanate-based additive is greater than 1.
    Type: Application
    Filed: December 29, 2021
    Publication date: January 30, 2025
    Inventors: Soojin Kim, Jinah Seo, Junyong Lee, Hyejeong Jeong, Olga TSAY, Sunjoo Choi, Sanghoon Kim, Yunhee Kim
  • Publication number: 20240213475
    Abstract: An additive for an electrolyte to be utilized in a rechargeable lithium battery. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and the additive that has a halogen-substituted sulfonyl group and a heteroarene having unshared electron pairs. The additive may enhance or improve the room-temperature cycle-life characteristics and suppress or reduce an increase in resistance of the rechargeable lithium battery during high-temperature storage.
    Type: Application
    Filed: July 13, 2023
    Publication date: June 27, 2024
    Inventors: Olga TSAY, Dahyun KIM, Hyunbong CHOI, Pavel SHATUNOV, Sundae KIM, Yeji YANG, Hongryeol PARK, Sangwoo PARK
  • Publication number: 20240186577
    Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are provided. The electrolyte may include a lithium salt, an organic solvent, and an additives (e.g., sulfolane, cyclic phosphate, cyclic phosphite) that form a cathode electrolyte interface film to protect the surface of a positive electrode. Utilization of the additives may improve cycle-life characteristics and suppress or reduce increases to resistance during high-temperature storage of the lithium secondary battery.
    Type: Application
    Filed: October 4, 2023
    Publication date: June 6, 2024
    Inventors: Sangwoo Park, Wonseok Cho, Sanghyung Kim, Pavel SHATUNOV, Olga TSAY, Myungheui Woo, Hyejin Park, Sanghoon Kim, Bokyung Ryu
  • Publication number: 20240120538
    Abstract: Provided are a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery including the same, and the non-aqueous electrolyte for the lithium secondary battery including a non-aqueous organic solvent, a lithium salt, and an additive represented by Chemical Formula 1.
    Type: Application
    Filed: April 4, 2022
    Publication date: April 11, 2024
    Inventors: Olga TSAY, Yeji YANG, Sangwoo PARK, Sundae KIM, Pavel SHATUNOV, Hyunbong CHOI, Hongryeol PARK, Hyeonji HWANG, Dahyun KIM
  • Publication number: 20240079650
    Abstract: An additive for an electrolyte, an electrolyte including the additive for a rechargeable lithium battery, and a rechargeable lithium battery including the electrolyte are provided. The additive may be represented by Chemical Formula 1, where at least one selected from A and B is a group represented by Chemical Formula A.
    Type: Application
    Filed: July 27, 2023
    Publication date: March 7, 2024
    Inventors: Hongryeol PARK, Hyunbong CHOI, Sangwoo PARK, Dahyun KIM, Sundae KIM, Yeji YANG, Olga TSAY, Pavel SHATUNOV, Sanghoon KIM
  • Publication number: 20230318035
    Abstract: Disclosed are an electrolyte for a lithium battery and a lithium battery including the electrolyte. The electrolyte for a lithium battery may include: a lithium salt; a nonaqueous organic solvent; and an additive including a compound represented by Formula 1 disclosed herein and at least one compound from among compounds represented by Formula 2-1 and Formula 2-2 disclosed herein.
    Type: Application
    Filed: December 10, 2021
    Publication date: October 5, 2023
    Inventors: Hyejeong JEONG, Soojin KIM, Olga TSAY, Pavel SHATUNOV, Yunhee KIM
  • Publication number: 20230268552
    Abstract: An electrolyte for a lithium battery and a lithium battery including the same are provided. The electrolyte for a lithium battery may include: a lithium salt; a non-aqueous organic solvent; and an additive including a compound represented by Formula 1.
    Type: Application
    Filed: December 7, 2021
    Publication date: August 24, 2023
    Inventors: Olga TSAY, Hyejin Park, Pavel SHATUNOV, Sanghyung Kim, Sangwoo Park, Myungheui Woo, Bokyung Ryu, Wonseok Cho
  • Publication number: 20230178805
    Abstract: The present invention relates to: an electrolyte for a rechargeable lithium battery, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an electrolyte additive for a rechargeable lithium battery, the electrolyte additive including a compound represented by Chemical Formula 1; and a rechargeable lithium battery comprising the electrolyte for a rechargeable lithium battery. Chemical Formula 1 is as defined in the specification.
    Type: Application
    Filed: March 2, 2021
    Publication date: June 8, 2023
    Inventors: Injun PARK, Soojin KIM, Junyong LEE, Tae Jin LEE, Hyejeong JEONG, Olga TSAY, Hyunbong CHOI, Jungmin HAN
  • Publication number: 20230170526
    Abstract: Provided are an additive represented by Chemical Formula 1, an electrolyte for a lithium secondary battery including same, and a lithium secondary battery. The details of Chemical Formula 1 are as described in the specification.
    Type: Application
    Filed: January 20, 2021
    Publication date: June 1, 2023
    Inventors: Jin-Hyeok LIM, Younghye KANG, Dongyoung KIM, Soojin KIM, Aeran KIM, Suyeol RYU, Jeongmin SHIN, Kyu-Eun SHIM, Junyong LEE, Tae Jin LEE, Myunghwan JEONG, Wonseok CHO, Olga TSAY, Hyunbong CHOI, Pavel SHATUNOV, Jungmin HAN
  • Publication number: 20230140494
    Abstract: Provided are an additive for the electrolyte of a secondary lithium battery, an electrolyte for secondary lithium battery, and a secondary lithium battery comprising same, the additive comprising a compound represented by chemical formula 1.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 4, 2023
    Inventors: Olga TSAY, Soojin KIM, Hyunbong CHOI, Younghye KANG, Jin-Hyeok LIM, Myunghwan JEONG, Wonseok CHO, Pavel SHATUNOV
  • Publication number: 20220263131
    Abstract: Provided are an electrolyte additive for lithium secondary battery including a compound represented by Formula 1 below, an electrolyte for lithium secondary battery including the same, and a lithium secondary battery including the electrolyte. wherein, in Formula 1, R1 to R3 are as defined in the detailed description.
    Type: Application
    Filed: July 8, 2020
    Publication date: August 18, 2022
    Inventors: Olga TSAY, Hyejin PARK, Myungheui WOO, Hyunbong CHOI, Pavel SHATUNOV
  • Publication number: 20220263132
    Abstract: Provided are an electrolyte additive for lithium secondary batteries, an electrolyte for lithium secondary batteries including the same, and a lithium secondary battery including the electrolyte, the additive including a compound represented by Formula 1 below: In Formula 1, R1 to R6 are as defined in the detailed description.
    Type: Application
    Filed: July 28, 2020
    Publication date: August 18, 2022
    Inventors: Jinhyeok Lim, Pavel SHATUNOV, Olga TSAY, Younghye Kang, Aeran Kim, Hyejin Park, Myungheui Woo, Duckjae You, Taejin Lee, Harim Lee, Wonseok Cho, Hyunbong Choi
  • Publication number: 20220069350
    Abstract: An additive, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery including the same, the additive being represented by Chemical Formula 1 or Chemical Formula 2:
    Type: Application
    Filed: August 9, 2021
    Publication date: March 3, 2022
    Inventors: Wonseok CHO, Dahyun KIM, Minseo KIM, Sanghyung KIM, Sanghoon KIM, Sangwoo PARK, Hyejin PARK, Myungheui WOO, Bokyung RYU, Tae Jin LEE, Olga TSAY, Pavel SHATUNOV
  • Publication number: 20210296702
    Abstract: The present disclosure relates to an electrolyte for a lithium secondary battery and a lithium secondary battery comprising same, the electrolyte comprising: a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1 and a negative electrode film forming agent. Formula 1 is as described in the specification. For example, the electrolyte for a lithium secondary battery includes a non-aqueous organic solvent, a lithium salt, and an additive, and the additive includes a compound represented by Chemical Formula 1 and a negative electrode film forming agent. Description of Chemical Formula 1 is as described in the specification.
    Type: Application
    Filed: June 18, 2019
    Publication date: September 23, 2021
    Inventors: Myungheui WOO, Pavel SHATUNOV, Olga TSAY, Hyejin PARK, Harim LEE, Jin-Hyeok LIM, Wonseok CHO, Hyunbong CHOI
  • Publication number: 20210005932
    Abstract: The present invention relates to a lithium secondary battery. The lithium secondary battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1. The negative active material includes Si at about 0.1 wt % to about 32 wt % in amount based on a total weight of the negative active material. wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4—)n, and n is an integer from 1 to 10.
    Type: Application
    Filed: September 16, 2020
    Publication date: January 7, 2021
    Inventors: Jin-Hyeok LIM, Younghye KANG, Soojin KIM, Aeran KIM, Suyeol RYU, Injun PARK, Jinah SEO, Jeongmin SHIN, Junyong LEE, Tae Jin LEE, Myunghwan JEONG, Hyejeong JEONG, Wonseok CHO, Olga TSAY, Hyunbong CHOI, Pavel SHATUNOV