title: Carbon-encapsulated pyrite as stable and earth-abundant high energy cathode material for rechargeable lithium batteries.
abstract: Cathode materials consisting of porous pyrite nano-octahedra encapsulated by uniform carbon nanocages exhibit very high energy density, superior rate capability (reversible capabilities of 439, 340, and 256 mA h g(-1) at 1C, 2.5C, and 5C, respectively) and stable cycling performance (ca. 10% capacity loss after 50 cycles at 0.5C with a capacity retention of 495 mA h g(-1) ).
authors.affiliation: Max Planck Institute for Solid State Research, Heisenbergstr. 1, Stuttgart, 70569, Germany.
authors.forename: Jun
authors.initials: J
authors.lastname: Liu
authors.forename: Yuren
authors.initials: Y
authors.lastname: Wen
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.forename: Peter A
authors.initials: PA
authors.lastname: van Aken
authors.forename: Joachim
authors.initials: J
authors.lastname: Maier
authors.forename: Yan
authors.initials: Y
authors.lastname: Yu
keywords: Li-ion batteries; carbon-encapsulation; cathode; high-energy conversion; nanocages