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Affiliation of Author(s):

冶金工程学院

Journal:

Electrochimica Acta（SCI期刊）

Key Words:

中文关键字：锂硫电池；导电涂层；聚丙烯酰胺；化学协同；多硫化物，英文关键字：lithium sulfur battery；conductive coating；polyacry

Abstract:

Commercialized conductive slurry consisting of polyacrylamide (PAM) and two kinds of carbon black was coated on the surface of sulfur cathode. The hybrid PAM/C coating not only physically blocks but also chemically anchors polysulfides within the cathode, confining their out-diffusion and shuttle. Besides, the flexible and highly-conductive coating layer buffers volume change of the cathode during dischargecharge process and reduces charge transfer resistance. A specific capacity of as high as
900 mAh g1 after 300 cycles is demonstrated for the PAM/C coated cathode, which is a significant improvement of reversible capacity and cycle capability compared to uncoated or conventional PVDF/C coated cathode.

Note:

袁艳

First Author:

Yuan Yan

Indexed by:

Journal paper

Volume:

卷：244

Issue:

期：

Page Number:

页：192-198

Translation or Not:

no

Date of Publication:

2017-05-01