Conductive Additives for Improving the Rate Capability of Cathode Materials in Secondary Lithium Batteries

Jiao, X.; Kirianova, A.V.; Xu, X.; Kapitanova, O.O.; Krivchenko, V.A.; Napolskiy, F.S.; Volkov, V.S.; Gallyamov, M.O.; Liu, Y.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 1 мая 2024 г.

Авторы: Jiao Xingxing, Kirianova Alina V., Xu Xieyu, Kapitanova Olesya O., Krivchenko Victor A., Napolskiy Filipp S., Volkov Valentyn S., Gallyamov Marat O., Liu Yangyang
Журнал: ACS Applied Energy Materials
Том: 6
Номер: 5
Год издания: 2023
Издательство: American Chemical Society
Местоположение издательства: United States
Первая страница: 2855
Последняя страница: 2862
DOI: 10.1021/acsaem.2c03772
Аннотация: Conductive additive, one of the most important components of a battery, is an indispensable key material in the high-current charging and discharging processes of lithium-ion batteries. The most fundamental reason for adding appropriate conductive additives in the electrode is to improve the poor conductive performance of the electrode-active material, reduce the internal resistance and polarization of the electrode, and improve the comprehensive performance of the battery. Herein, a graphene-like material with a unique two-dimensional morphology was proposed, as obtained by an efficient one-step electrochemical synthesis, which can provide a flexible plane-to-point conducting network to improve the electronic conductivity of cathode materials. Compared with the commercial conductive additive Super P, the NCM811 cathode material with ECGO can deliver a capacity of 147.3 mAh g–1 at a high rate of 2 C, and sulfur cathode retains 620 mAh g–1 after 200 cycles, corresponding to the capacity retention of 74%. Also, due to the presence of oxygen groups, ECGO is proposed as an effective conductive additive in Li-ion cathodes prepared by water-based processing. Therefore, the cathode materials with the ECGO conductive additive can contribute to reduce the interfacial resistance and increase the capability, showing great advantages compared to the commercial conductive additives.
Добавил в систему: Галлямов Марат Олегович

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Conductive Additives for Improving the Rate Capability of Cathode Materials in Secondary Lithium Batteriesстатья

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