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المؤلفNisar, Umair
المؤلفPetla, Ramesh
المؤلفJassim Al-Hail, Sara Ahmad
المؤلفQuddus, Aisha Abdul
المؤلفMonawwar, Haya
المؤلفShakoor, Abdul
المؤلفEssehli, Rachid
المؤلفAmin, Ruhul
تاريخ الإتاحة2023-09-28T11:44:19Z
تاريخ النشر2020-04-17
اسم المنشورRSC Advances
المعرّفhttp://dx.doi.org/10.1039/d0ra02060e
الاقتباسNisar, U., Petla, R., Al-Hail, S. A. J., Quddus, A. A., Monawwar, H., Shakoor, A., ... & Amin, R. (2020). Impact of surface coating on electrochemical and thermal behaviors of a Li-rich Li 1.2 Ni 0.16 Mn 0.56 Co 0.08 O 2 cathode. RSC advances, 10(26), 15274-15281.
الرقم المعياري الدولي للكتاب2046-2069
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85084180401&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/48116
الملخصLithium-rich layered oxide materials are considered as potential cathode materials for future high-performance lithium-ion batteries (LIBs) owing to their high operating voltage and relatively high specific capacity. However, perceptible issues such as poor rate performance, poor capacity retention, and voltage degradation during cycling need to be improved before the successful commercialization of the material. In this report, zirconia coated Li1.2Ni0.16Mn0.56Co0.08O2 (NMC) (where ZrO2 = 1.0, 1.5 and 2.0 wt%) materials are synthesized using a sol-gel assisted ball milling approach. A comparison of structural, morphological and electrochemical properties is examined to elucidate the promising role of ZrO2 coating on the performance of the NMC cathode. A uniform and homogeneous ZrO2 coating is observed on the surface of NMC particles as evident by TEM elemental mapping images. The ZrO2 coated NMCs exhibit significantly improved electrochemical performance at a higher C-rate as compared to pristine material. 1.5% ZrO2 coated NMC demonstrates better cycling stability (95% capacity retention) than pristine NMC (77% capacity retention) after 50 cycles. All ZrO2 coated NMC materials demonstrated improved thermal stability compared to pristine material. The difference in onset temperature of 2 wt% ZrO2 coated and pristine NMC is 20 °C. The improved electrochemical performance of ZrO2 coated NMC can be attributed to the stabilization of its surface structure due to the presence of ZrO2.
راعي المشروعThis publication was made possible by NPRP Grant 11S-1225-170128 from Qatar National Research Fund (a member of the Qatar Foundation).
اللغةen
الناشرRoyal Society of Chemistry
الموضوعLithium-ion batteries
Pristine materials
العنوانImpact of surface coating on electrochemical and thermal behaviors of a Li-rich Li1.2Ni0.16Mn0.56Co0.08O2 cathode
النوعArticle
الصفحات15274-15281
رقم العدد26
رقم المجلد10
dc.accessType Open Access


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