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2 444 815

(13)

(51)

IPC

H01M4/58(2010-01-01)

(21) (22)

Application

2010135642/07, 2010-08-27

(24)

Start date

2010-08-27

(22)

Actual filing date

2010-08-27

(45)

Published

2012-03-10

(72)

Inventor

Kosova Nina Vasil'EvnaDevjatkina Evgenija TimofeevnaTomilova Galina NikolaevnaLjakhov Nikolaj ZakharovichAleksandrov Aleksandr BorisovichSnopkov Jurij VladimirovichRezvov Sergej Anatol'EvichRozhkov Vladimir Vladimirovich

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Khimii Tverdogo Tela I Mekhanokhimii Sibirskogo Otdelenija Ran So Ran)Obshchestvo S Ogranichennoj Otvetstvennost'Ju Materialy" Materialy")

METHOD TO PRODUCE HIGHLY DISPERSED CATHODE MATERIALS LiFeMPO/C WITH OLIVINE STRUCTURE Russian patent published in 2012 - IPC H01M4/58

Abstract RU 2444815 C1

FIELD: electricity.

SUBSTANCE: according to the invention, synthesis of cathode materials Li_xFe_yM_zPO₄/C with olivine structure is carried out by means of carbothermic reduction of Fe₂O₃ with application of highly-stressed mechanochemical activator, and surface modification with carbon is carried out by highly conductive soots and/or organic compounds with pyrolysis temperature below 700°C, used simultaneously as a reducing agent and a coating agent.

EFFECT: improved electrochemical properties of specified cathode materials with olivine structure, simplification and reduction of their production process cost.

16 cl, 7 dwg, 11 ex, 1 tbl

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RU 2 444 815 C1

Authors

Kosova Nina Vasil'Evna

Devjatkina Evgenija Timofeevna

Tomilova Galina Nikolaevna

Ljakhov Nikolaj Zakharovich

Aleksandrov Aleksandr Borisovich

Snopkov Jurij Vladimirovich

Rezvov Sergej Anatol'Evich

Rozhkov Vladimir Vladimirovich

Dates

2012-03-10—Published

2010-08-27—Filed