Abstract
Metal (Li, Na, K, Mg, Ca, and Al) sulfur batteries have attracted intensive attention due to their excellent energy densities and low cost. However, due to the dissolution and shuttle of polysulfide intermediates, the complex heterogeneous sulfur redox reaction, and the slow kinetic transformation of metal ions in the electrochemical process, the cycle stability and rate performance of metal-sulfur batteries are poor, which greatly affected their further development. A large number of new technologies and new materials are employed to solve these drawbacks. Many metal-sulfur batteries with improved electrochemical performance are reported recently. In this chapter, we introduce in detail the different applications and latest developments of various sulfides in lithium sulfur batteries. Moreover, the development and extension of sulfides in nonlithium metal-sulfur batteries are discussed.
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