Tech News 1: Binder-free sandwich structure film as a high-capacity cathode for aluminum-sulfur battery

[bob_turner]

Aluminum-sulfur (Al-S) battery system possesses the theoretical energy density as high as 1340 W h kg-1. Such high energy density and cheap raw materials make Al-S battery a promising alternative-energy storage device. However, sulfur is a conversion-type cathode material and will generate a series of polysulfides and sulfides during the charge/discharge process. Polysulfides can easily lose electrical contact with the host and diffuse to the electrolyte or Al anode, leading to the shuttle effect,...

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