Title:
CATHODE ACTIVE MATERIAL COMPRISING POLYIMIDE, MANUFACTURING METHOD THEREOF, AND LITHIUM-SULFUR BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2018/030686
Kind Code:
A1
Abstract:
The present invention relates to a cathode active material for a lithium-sulfur battery comprising polyimide and, more particularly, to a cathode active material having a composite of polyimide and carbon-based secondary particles complexed with sulfur particles, a method for manufacturing the same, and a lithium-sulfur battery comprising the same. When the complexed cathode active material comprising polyimide according to the present invention is applied to a lithium-sulfur battery, elution of polysulfide is suppressed, such that lifetime characteristics and energy efficiency are improved.
Inventors:
CHO EUNKYUNG (KR)
KIM TAEK GYOUNG (KR)
YANG DOO KYUNG (KR)
KIM TAEK GYOUNG (KR)
YANG DOO KYUNG (KR)
Application Number:
PCT/KR2017/008135
Publication Date:
February 15, 2018
Filing Date:
July 28, 2017
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/36; H01M4/13; H01M4/38; H01M4/58; H01M4/587; H01M10/052
Domestic Patent References:
| WO2011145871A2 | 2011-11-24 |
Foreign References:
| KR20140073936A | 2014-06-17 | |||
| US20150221935A1 | 2015-08-06 | |||
| JP2013229227A | 2013-11-07 |
Other References:
PARK, JANG-HOON ET AL.: "Polyimide Gel Polymer Electrolyte-nanoencapsulated LiCoO2 Cathode Materials for High-voltage Li-ion Batteries", ELECTROCHEMISTRY COMMUNICATIONS, vol. 12, no. 8, 2 June 2010 (2010-06-02), pages 1099 - 1102, XP027137114
Attorney, Agent or Firm:
KIM, Sung Ho et al. (KR)
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