Title:
CATHODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/177139
Kind Code:
A1
Abstract:
Disclosed are a cathode for a lithium secondary battery and a lithium secondary battery comprising same. The cathode for a lithium secondary battery can improve low-temperature lifespan characteristics of a lithium secondary battery by comprising: a cathode active material; and an additive comprising a compound represented by chemical formula 1 as follows: In chemical formula 1, Ar, R1, R2, and Y are as defined in the detailed description.
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Inventors:
KIM DA HYUN (KR)
KIM MIN SEO (KR)
KIM SANG HYUNG (KR)
KIM SANG HOON (KR)
PARK HYE JIN (KR)
WOO MYUNG HEUI (KR)
RYU BO KYUNG (KR)
LEE TAE JIN (KR)
KIM MIN SEO (KR)
KIM SANG HYUNG (KR)
KIM SANG HOON (KR)
PARK HYE JIN (KR)
WOO MYUNG HEUI (KR)
RYU BO KYUNG (KR)
LEE TAE JIN (KR)
Application Number:
PCT/KR2021/020173
Publication Date:
August 25, 2022
Filing Date:
December 29, 2021
Export Citation:
Assignee:
SAMSUNG SDI CO LTD (KR)
International Classes:
H01M4/62; H01M4/02; H01M4/131; H01M10/052; H01M10/0567
Foreign References:
| KR20180116564A | 2018-10-25 | |||
| KR20190119963A | 2019-10-23 | |||
| KR20190012858A | 2019-02-11 | |||
| KR20180031585A | 2018-03-28 | |||
| KR20180056395A | 2018-05-28 | |||
| KR20180031586A | 2018-03-28 |
Other References:
DONG PENG; WANG DING; YAO YAO; LI XUE; ZHANG YINGJIE; RU JUANJIAN; REN TING: "Stabilizing interface layer of LiNi0.5Co0.2Mn0.3O2cathode materials under high voltage usingp-toluenesulfonyl isocyanate as film forming additive", JOURNAL OF POWER SOURCES, ELSEVIER, AMSTERDAM, NL, vol. 344, 2 February 2017 (2017-02-02), AMSTERDAM, NL, pages 111 - 118, XP029915812, ISSN: 0378-7753, DOI: 10.1016/j.jpowsour.2017.01.116
WANG RENHENG, DAI XIANGYU, QIAN ZHENGFANG, SUN YILING, FAN SHUTING, XIONG KEYU, ZHANG HAN, WU FEIXIANG: "In Situ Surface Protection for Enhancing Stability and Performance of LiNi 0.5 Mn 0.3 Co 0.2 O 2 at 4.8 V: The Working Mechanisms", ACS MATERIALS LETTERS, vol. 2, no. 4, 6 April 2020 (2020-04-06), pages 280 - 290, XP055960517, ISSN: 2639-4979, DOI: 10.1021/acsmaterialslett.9b00476
WANG RENHENG, DAI XIANGYU, QIAN ZHENGFANG, SUN YILING, FAN SHUTING, XIONG KEYU, ZHANG HAN, WU FEIXIANG: "In Situ Surface Protection for Enhancing Stability and Performance of LiNi 0.5 Mn 0.3 Co 0.2 O 2 at 4.8 V: The Working Mechanisms", ACS MATERIALS LETTERS, vol. 2, no. 4, 6 April 2020 (2020-04-06), pages 280 - 290, XP055960517, ISSN: 2639-4979, DOI: 10.1021/acsmaterialslett.9b00476
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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