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المؤلفNisar, Umair
المؤلفAmin, Ruhul
المؤلفShakoor, Abdul
المؤلفEssehli, Rachid
المؤلفAl-Qaradawi, Siham
المؤلفKahraman, Ramazan
المؤلفBelharouak, Ilias
تاريخ الإتاحة2023-02-15T10:16:35Z
تاريخ النشر2018
اسم المنشورEmergent Materials
المصدرScopus
معرّف المصادر الموحدhttp://dx.doi.org/10.1007/s42247-018-0014-0
معرّف المصادر الموحدhttp://hdl.handle.net/10576/40100
الملخصLithium-rich layer oxide, Li1.2Ni0.16Mn0.56Co0.08O2 (NMC), is a potential cathode candidate for high-energy density batteries. Issues such as cycling stability, rate performance, and cost are yet to be overcome before successful commercialization of the material. Here, we report on the synthesis of Cr-doped lithium-rich phases Li1.2Ni0.16Mn0.56Co0.08-xCrxO2 (where x = 0.00, 0.01, and 0.02) (NMC-Cr) by the sol-gel technique. Cr is homogeneously distributed in the crystal structure evidence by elemental mapping measurements. The Cr-doped materials exhibit much better cycling stability with 100% capacity retention versus 44% for the undoped sample after 50 cycles. The Cr-doped samples show excellent electrochemical performance at higher C-rate in comparison with the undoped NMC. The latter shows rapid capacity fading from 220 to 50 mAh g−1 at the 0.1 to 1C rates, respectively. Moreover, the Cr-containing materials do not show significant signs of voltage fading during cycling owing to the stabilization of the crystal lattice by Cr. The electrochemical impedance spectroscopy measurements also indicate the stable cell resistance on cycling for the Cr-doped phases compared to the undoped phase.
اللغةen
الناشرSpringer Nature
الموضوعBattery
Doped
Impedance
Layer structure
Lithium-rich cathode
Sol-gel
العنوانSynthesis and electrochemical characterization of Cr-doped lithium-rich Li1.2Ni0.16Mn0.56Co0.08-xCrxO2 cathodes
النوعArticle
الصفحات155-164
رقم العدد3
رقم المجلد1
dc.accessType Abstract Only


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