▎ 摘　　要

NOVELTY - Sulfurize carbon comprises carbon atoms, nitrogen atoms, clustered heterocyclic aromatic rings incorporating most of the carbon atoms in to sulfurize carbon and most of the nitrogen atoms in the sulfurize carbon, primary sulfur atoms, each primary sulfur atom adjacent to at least one of the carbon atoms, where most of the primary sulfur atoms are covalently bonded to at least one of the carbon atoms via a carbon-sulfur bond, and secondary sulfur atoms, each secondary sulfur atom separated from each of the carbon atoms by at least one intervening atom. USE - Sulfurize carbon for use in energy-storage devices. ADVANTAGE - The carbon has excellent performance, reduced storage capacity, and increased internal resistance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: 1. a method for making sulfurized bicarbonate, which involves heating at least one biological material with sulfur, each biological material comprising organic macromolecules to a temperature of at least 300 °C, where the biological material is sulfurized as it reacts with the sulfur, pyrolyzed and converted to the sulfurized bicarbonate, and the sulfurized biocarbon comprises carbon atoms, nitrogen atoms, heterocyclic aromatic rings incorporating most of the carbon atoms and most of the nitrogen atoms, primary sulfur atoms adjacent to the carbon atoms; and secondary sulfur atoms separate from the carbon atoms by at least one intervening atom, a majority of the primary sulfur atoms are covalently bonded to the adjacent carbon atoms via carbon-sulfur bonds, and the primary sulfur atoms in combination with the secondary sulfur atoms are greater than 10 wt.% of the sulfurized biocarbon by weight; and 2. an electrode, which comprises amorphous carbon-sulfur including carbon atoms, sulfur atoms, and nitrogen atoms; wherein most of the carbon atoms and most of the nitrogen atoms are incorporated into heterocyclic aromatic rings, and the sulfur atoms are bonded to the heterocyclic aromatic rings via carbon-sulfur chemical bonds.