Effect of sonication power on Al2O3 coated LiNi0.5Mn0.3Co0.2O2 cathode material for LIB

Dila Sivlin, Ozgul Keles*

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Kitap/Rapor/Konferans Bildirisinde BölümKonferans katkısıbilirkişi

2 Atıf (Scopus)

Özet

Lithium ion batteries are potential energy source of next generation electric vehicles (EVs). However, some problems such as safety, durability, low capacity, cycle life etc. restrict their use in EVs. These problems mostly related with cathode materials, an improvement in cathode materials may cause significant changes in battery performance. In this work, to overcome cycle life problem Al2O3 coating on LiNi0.5Mn0.3Co0.2O2 cathode material produced by sol—gel method. The surface modification of LiNi0.5Mn0.3Co0,2O2 was started by adding LiNi0.5Mn0.3Co0.2O2 powders into alumina sol. Then, sonication was started and two different sonication powers were tested (45, 100%). After the second gel is obtained, last heat treatment for Al2O3 crystallization was done at 600 °C for 4 h. X—ray diffraction (XRD) measurements showed that the material had a well—ordered layered structure and Al was not in the LiNi0.5Mn0.3Co0.2O2. Al2O3 coated materials show better cycling performance compared to the pristine material. It is believed that, this improvement is caused by the fact that Al2O3 layer prevents direct contact between active material and electrolyte and reducing decomposition reactions.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığıEnergy Technology 2018 - Carbon Dioxide Management and Other Technologies
EditörlerSarma Pisupati, Lei Zhang, Allie Anderson, Shadia Ikhmayies, York R. Smith, Mingming Zhang, Xiaofei Guan, Huimin Lu, Amit Pandey, Dirk Verhulst, Ziqi Sun, Neale R. Neelameggham, Elsa Olivetti, Cong Wang, Donna Post Guillen, John A. Howarter, Tao Wang
YayınlayanSpringer International Publishing
Sayfalar515-522
Sayfa sayısı8
ISBN (Basılı)9783319723617
DOI'lar
Yayın durumuYayınlandı - 2018
EtkinlikEnergy Technologies Symposium organized in conjunction with the Annual Meeting and Exhibition, TMS 2018 - Phoenix, United States
Süre: 11 Mar 201815 Mar 2018

Yayın serisi

AdıMinerals, Metals and Materials Series
HacimPart F6
ISSN (Basılı)2367-1181
ISSN (Elektronik)2367-1696

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???event.eventtypes.event.conference???Energy Technologies Symposium organized in conjunction with the Annual Meeting and Exhibition, TMS 2018
Ülke/BölgeUnited States
ŞehirPhoenix
Periyot11/03/1815/03/18

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Publisher Copyright:
© 2018, The Minerals, Metals & Materials Society.

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