Journal
SOLID STATE SCIENCES
Volume 118, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.solidstatesciences.2021.106630
Keywords
Energy material; Positive electrode; Charge-discharge; Zinc; Eco-friendly
Funding
- Science and Engineering Research Board (SERB), a statutory body of the Department of Science & Technology (DST), Govt. of India, New Delhi [ECR/2017/001156]
- CSIR [09/1045(0037)/2K19-EMR-I]
- next generation engineering researcher program of national research foundation of Korea (NRF) - Ministry of Science and ICT [2017H1D8A2031138]
- Ministry of Human Resource Development RUSA-Phase 2.0 grant (TNMulti Gen), Dept. of Education, Govt. of India [F2451/2014 U Policy]
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A newly designed and synthesized zinc incorporated lithiated metal oxide cathode material has been developed in this study, exhibiting improved electrochemical properties for application in Li-ion batteries. The Li(Ni0.3Zn0.2Mn0.5)O2 material prepared via the hydrothermal process showed high electronic and ionic conductivity, making it a suitable cathode material.
In this work, newly designed and synthesized the zinc incorporated lithiated metal oxide cathode material for controlling the cost, improving capacity retention, and better safety. The Li(NixZnyMn1-x-z)O2 material prepared via the hydrothermal process and employed as a positive electrode for Li-ion rechargeable batteries. The stoichiometric ratio of the material is derived as Li(Ni0.3Zn0.2Mn0.5)O2 (NZM). The Li(Ni0.3Zn0.2Mn0.5)O2 is constructed as a cathode electrode, which was assembled as a coin type (CR2032) batteries and it has been delivered a charge capacity of 135 mAh g- 1 during Li-ion insertion and discharge capacity of 134 mAh g- 1 while Li-ion deinsertion process in the first cycle, respectively. The initial coulombic efficiency has been reached 99.2% at the C/10 rate within the voltage window between 2.5 and 4.2 V vs. Li/Li+. The improved electrochemical properties of Zn incorporated Li(Ni0.3Zn0.2Mn0.5)O2 layered cathode material is attributed to the high electronic and ionic conductivity and unique surface morphological architecture. So, it may be a suitable cathode material for application in Li-ion batteries.
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