title: Lithium storage mechanisms and effect of partial cobalt substitution in manganese carbonate electrodes.
abstract: A promising group of inorganic salts recently emerged for the negative electrode of advanced lithium-ion batteries. Manganese carbonate combines low weight and significant lithium storage properties. Electron paramagnetic resonance (EPR) and magnetic measurements are used to study the environment of manganese ions during cycling in lithium test cells. To observe reversible lithium storage into manganese carbonate, preparation by a reverse micelles method is used. The resulting nanostructuration favors a capacitive lithium storage mechanism in manganese carbonate with good rate performance. Partial substitution of cobalt by manganese improves cycling efficiency at high rates.
authors.affiliation: Inorganic Chemistry Laboratory, Universidad de Córdoba, Edif. C3, Campus de Rabanales, 14071 Córdoba, Spain.
authors.forename: Shadi
authors.initials: S
authors.lastname: Mirhashemihaghighi
authors.forename: Bernardo
authors.initials: B
authors.lastname: León
authors.forename: Carlos
authors.initials: C
authors.lastname: Pérez Vicente
authors.forename: José L
authors.initials: JL
authors.lastname: Tirado
authors.forename: Radostina
authors.initials: R
authors.lastname: Stoyanova
authors.forename: Meglena
authors.initials: M
authors.lastname: Yoncheva
authors.forename: Ekaterina
authors.initials: E
authors.lastname: Zhecheva
authors.forename: Regino
authors.initials: R
authors.lastname: Sáez Puche
authors.forename: Elena M
authors.initials: EM
authors.lastname: Arroyo
authors.forename: Julio
authors.initials: J
authors.lastname: Romero de Paz