Bulyukina Viktoriya Aleksandrovna RussiaSaratov Research Institute of Chemical Power Sources (Joint-Stock Company), 11a Ordzhonikidze St., Saratov 410015, Russiaинженер-исследователь II категорииbuluykinavika@mail.ru0000-0002-0987-4762 Author's articles Functional Behavior of the Materials Based on Iron(II)–Lithium Phosphate with the Trifilite Structure in the Lithium Accumulatory System with Aqueous Electrolyte Development of the Electrode Material of the Lithium-ion Battery Based on Lithium-nickel(II) and Cuprum(II)-Lithium Vanadates Electrochemical System of LiTi₂(PO₄)₃ | 1 M Aqueous Li₂SO₄ | LiFePO₄ and Prototypes of the Lithium-Ion Battery Based on it