Title:
TUNABLE AND SCALABLE SYNTHESIS OF HIERARCHICAL POROUS NANOCARBON/SULFUR COMPOSITE CATHODES
Document Type and Number:
WIPO Patent Application WO/2018/006557
Kind Code:
A1
Abstract:
Hierarchical porous carbon nanofiber/sulfur composites (HPCNF/S), useful in the manufacture of lithium sulfur batteries are formed of a cathode having a hierarchical porous carbon nanofiber/sulfur (HPCNF/S) composite, a conductive additive, polyvinylidene fluoride binder and a foil current collector. The HPCNF is formed by electrospinning polyacrylonitrile/iron (III) acetylacetonate neat fibers from polymer precursor, stabilizing, carbonizing and acid etching to form porous CNFs, effecting chemical activation of porous CNF to form hierarchical porous carbon nanofibers (HPCNFs) and effecting encapsulation of sulfur in pores of HPCNFs by melt-diffusion. When used as a battery, the HPCNF/Scomposite functions as a cathode.
Inventors:
KIM JANG-KYO (CN)
XU ZHENGLONG (CN)
HUANG JIANQIU (CN)
CHONG WOON GIE (CN)
QIN XIANYING (CN)
WANG XIANGYU (CN)
XU ZHENGLONG (CN)
HUANG JIANQIU (CN)
CHONG WOON GIE (CN)
QIN XIANYING (CN)
WANG XIANGYU (CN)
Application Number:
PCT/CN2016/111487
Publication Date:
January 11, 2018
Filing Date:
December 22, 2016
Export Citation:
Assignee:
UNIV HONG KONG SCI & TECH (CN)
International Classes:
H01M4/62
Foreign References:
| CN105529464A | 2016-04-27 | |||
| CN104900880A | 2015-09-09 | |||
| CN105185994A | 2015-12-23 | |||
| CN104701507A | 2015-06-10 | |||
| CN102969487A | 2013-03-13 | |||
| US20150180021A1 | 2015-06-25 |
Attorney, Agent or Firm:
TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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