Title:
SYNTHESIS OF POROUS CARBON MICROSPHERES AND THEIR APPLICATION IN LITHIUM-SULFUR BATTERIES
Document Type and Number:
WIPO Patent Application WO/2018/127124
Kind Code:
A1
Abstract:
Lithium-sulfur batteries are formed with a high-capacity sulfur cathode, using porous carbon microspheres infused with sulfur, and lithium anode. A mixture of precursor solution is formed by dispersing superconductive carbon black particles in the dissolved polymer solution. The mixture is used to form carbon black/polymer precursor microspheres via electrospraying after solvent evaporation. The precursor microspheres are pyrolyzed to form a porous carbon microsphere substrate by removing the polymers, and then the porous carbon microspheres are infused with sulfur. The sulfur-infused carbon microspheres are employed as a cathode in the lithium sulfur battery.
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Inventors:
KIM JANG-KYO (CN)
QIN XIANYING (CN)
XU ZHENGLONG (CN)
HUANG JIANQIU (CN)
CHONG WOON GIE (CN)
WANG XIANGYU (CN)
QIN XIANYING (CN)
XU ZHENGLONG (CN)
HUANG JIANQIU (CN)
CHONG WOON GIE (CN)
WANG XIANGYU (CN)
Application Number:
PCT/CN2018/071546
Publication Date:
July 12, 2018
Filing Date:
January 05, 2018
Export Citation:
Assignee:
UNIV HONG KONG SCI & TECH (CN)
International Classes:
H01M4/08
Foreign References:
| CN102969487A | 2013-03-13 | |||
| CN102969481A | 2013-03-13 | |||
| CN103441248A | 2013-12-11 | |||
| CN1577926A | 2005-02-09 | |||
| KR20150131653A | 2015-11-25 |
Other References:
ZHAO, CUNYU ET AL.: "Sulfur-infiltrated porous carbon microspheres with controllable multi- modal pore size distribution for high energy lithium-sulfur batteries", NANOSCALE, vol. 6, no. 2, 27 October 2013 (2013-10-27), pages 882 - 888, XP055510045
Attorney, Agent or Firm:
TEE & HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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