najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМОnajo-1426Research ArticleСтатьиFreeze drying synthesis of LiNi 0.4 Mn 0.4 Co 0.2 O 2 cathode materials for lithium-ion batteriesКриохимический синтез катодных материалов на основе LiNi 0.4 Mn 0.4 Co 0.2 O 2 для Li-ионных аккумуляторовКуриленкоК. А.KurilenkoK. A.

Химический Факультет

Москва

Department of Materials Science

Moscow

kostik_msu@mail.ruБрылевО. А.BrylevO. A.

Факультет Наук о Материалах

Москва

Chemistry Department

Moscow

brylev@inorg.chem.msu.ruФилипповаТ. В.FilippovaT. V.

Химический Факультет

Москва

Department of Materials Science

Moscow

tania.filippova@inorg.chem.msu.ruБаранчиковА. Е.BaranchikovA. E.

Москва

Moscow

a.barantchikov@gmail.comШляхтинО. А.ShlyakhtinO. A.

Химический Факультет

Москва

Department of Materials Science

Moscow

oleg@inorg.chem.msu.ruМосковский Государственный Университет им. М. В. ЛомоносоваM. V. Lomonosov Moscow State UniversityИнститут общей и неорганической химии им. Н. С. Курнакова РАНN. S. Kurnakov Institute of General and Inorganic Chemistry RAN20132908202541105112Copyright © Kurilenko K.A., Brylev O.A., Filippova T.V., Baranchikov A.E., Shlyakhtin O.A., 20252025Куриленко К.А., Брылев О.А., Филиппова Т.В., Баранчиков А.Е., Шляхтин О.А.Kurilenko K.A., Brylev O.A., Filippova T.V., Baranchikov A.E., Shlyakhtin O.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1426

For the first time, ultradispersed cathode materials LiNi 0.4 Mn 0.4 Co 0.2 O 2 were obtained from freeze dried precursors with different anionic composition. The thermal decomposition of freeze drying precursors was carried out at 800–950 ◦C. By using XRD and SEM techniques, it was shown that particle size, crystallinity and cation ordering of Ni 2+ and Li + ions enhance with increasing thermal treatment temperature up to 900 ◦C. It was established that LiNi 0.4 Mn 0.4 Co 0.2 O 2 powders obtained from nitrate precursor at 900 ◦C possess the highest degree of crystallinity and cation ordering

Ультрадисперсные катодные материалы состава LiNi 0.4 Mn 0.4 Co 0.2 O 2 впервые получены криохимическим методом из растворов различного анионного состава. Термолиз криохимических прекурсоров проводился при температурах 800–950 ◦С. С помощью методов РФА и растровой электронной микроскопии установлено, что размер частиц, степень кристалличности и катионное упорядочение ионов Ni 2+ и Li + между подрешетками LiNi 0.4 Mn 0.4 Co 0.2 O 2 увеличиваются с увеличением температуры термообработки до 900 ◦С. Показано, что порошки LiNi 0.4 Mn 0.4 Co 0.2 O 2, полученные из нитратного прекурсора при температуре 900 ◦С, обладают наиболее высокими степенями кристалличности и катионного упорядочения

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The authors declare that there are no conflicts of interest present.