期刊
RARE METALS
卷 36, 期 5, 页码 339-364出版社
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-017-0891-z
关键词
Li-S and Li-Se batteries; Low cost; Novelty battery structure; Porous carbon matrix; Heteroatom doping
资金
- National Natural Science Foundation of China [21373195, 51622210]
- Fundamental Research Funds for the Central Universities [WK3430000004]
Li-S and Li-Se batteries have attracted tremendous attention during the past several decades, as the energy density of Li-S and Li-Se batteries is high (several times higher than that of traditional Li-ion batteries). Besides, Li-S and Li-Se batteries are low cost and environmental benign. However, the commercial applications of Li-S and Li-Se batteries are hindered by the dissolution and shuttle phenomena of polysulfide (polyselenium), the low conductivity of S (Se), etc. To overcome these drawbacks, scientists have come up with various methods, such as optimizing the electrolyte, synthesizing composite electrode of S/polymer, S/carbon, S/metal organic framework (MOF) and constructing novelty structure of battery. In this review, we present a systematic introduction about the recent progress of Li-S and Li-Se batteries, especially in the area of electrode materials, both of cathode material and anode material for Li-S and Li-Se batteries. In addition, other methods to lead a high-performance Li-S and Li-Se batteries are also briefly summarized, such as constructing novelty battery structure, adopting proper charge-discharge conditions, heteroatom doping into sulfur molecules, using different kinds of electrolytes and binders. In the end of the review, the developed directions of Li-S and Li-Se batteries are also pointed out. We believe that combining proper porous carbon matrix and heteroatom doping may further improve the electrochemical performance of Li-S and Li-Se batteries. We also believe that Li-S and Li-Se batteries will get more exciting results and have promising future by the effort of battery community.
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