An improved cathode (104) suitable for lithium-sulfur batteries, a battery (100) including the cathode (104), and a battery including a separator (106) containing inorganic fillers are disclosed. The cathode (104) includes sulfur and a metal oxide and optionally includes an additional polymeric material. The metal oxide reduces dissolution of sulfur at the cathode (104) and reduces sulfur-containing deposits on the battery anode (102), thereby providing a battery (100) with relatively high energy density and good partial discharge performance. The separator (106) also reduces unwanted diffusion of sulfur species.
