科研之友
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摘要
Activated clay (AC) with a nest-like structure and a large surface area was employed to support sulfur as the cathode for lithium-sulfur batteries. The special structure may have a similar effect to small filter screens for entrapping sulfur and restricting the diffusion of polysulfides during cycling. A high capacity of 959.6 mA h g(-1) was achieved at a rate of 0.1 C in the first cycle for the AC/S composite with a sulfur content of 57 wt% and the reversible capacity remained high at up to 700.9 mA h g(-1) even after 50 cycles.
- 出版日期2015
- 单位河南师范大学
