Hybrid polyacrylamide/carbon coating on sulfur cathode for advanced lithium sulfur battery
发布时间：2024-08-09
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- 所属单位：
- 冶金工程学院
- 发表刊物：
- Electrochimica Acta（SCI期刊）
- 关键字：
- 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
- 摘要：
- 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.
- 备注：
- 袁艳
- 第一作者：
- 袁艳
- 论文类型：
- 期刊论文
- 卷号：
- 卷：244
- 期号：
- 期：
- 页面范围：
- 页：192-198
- 是否译文：
- 否
- 发表时间：
- 2017-05-01