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2 801 381

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(51)

IPC

H01M4/58(2010-01-01)

C01B25/45(2006-01-01)

C01D15/00(2006-01-01)

C01G31/00(2006-01-01)

B22F9/16(2006-01-01)

B82Y40/00(2011-01-01)

(21) (22)

Application

2023100302, 2023-01-11

(24)

Start date

2023-01-11

(22)

Actual filing date

2023-01-11

(45)

Published

2023-08-08

(72)

Inventor

Gyrdasova Olga IvanovnaDeeva Iuliia AndreevnaChupakhina Tatiana IvanovnaGavrilova Tatiana PavlovnaKhantimerov Sergei Mansurovich

(73)

Holder

Federalnoe Gosudarstvennoe Biudzhetnoe Uchrezhdenie Nauki Institut Khimii Tverdogo Tela Uralskogo Otdeleniia Rossiiskoi Akademii Nauk

METHOD OF OBTAINING CATHODE MATERIAL COMPOSITION LiV(PO) Russian patent published in 2023 - IPC H01M4/58 C01B25/45 C01D15/00 C01G31/00 B22F9/16 B82Y40/00

Abstract RU 2801381 C1

FIELD: production of lithium-ion batteries.

SUBSTANCE: method for producing a cathode material of the composition Li₃V₂(PO₄)₃ includes hydrothermal treatment of the initial aqueous mixture of lithium carbonate, ammonium dihydrogen phosphate and vanadyl formate of the composition VO(HCOO)₂⋅H₂O, taken in a stoichiometric ratio. Hydrothermal treatment is carried out at a temperature of 180-200°C for 8-10 hours. The resulting product is dried in an argon or helium atmosphere until a constant weight is obtained and annealed in an argon or helium atmosphere at a temperature of 700-750°C for 4-5 hours.

EFFECT: invention makes it possible to obtain a pure cathode material of composition Li₃V₂(PO₄)₃ in a nanodispersed state.

1 cl, 2 dwg, 2 ex

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RU 2 801 381 C1

Authors

Gyrdasova Olga Ivanovna

Deeva Iuliia Andreevna

Chupakhina Tatiana Ivanovna

Gavrilova Tatiana Pavlovna

Khantimerov Sergei Mansurovich

Dates

2023-08-08—Published

2023-01-11—Filed