LiNi Mn O powder was successfully synthesised via ball-milling, followed by calcination at temperatures of 750, 850 and 0.5 1.5 4 950 °C. The physical and electrochemical properties of LiNi Mn O powder were characterised by X-ray diffraction, scanning 0.5 1.5 4 electron microscopy, transmission electron microscopy and galvanostatic charge/discharge. At a 1 C rate, LiNi Mn O 0.5 1.5 4 −1 −1 annealed at 750 °C displays the highest discharge capacity of 81 mAh g at the first cycle and 86 mAh g after 100 cycles. The smaller particle size presented by this LiNi Mn O markedly enhances the rate capability by allowing sufficient contact 0.5 1.5 4 between the active material and the electrolyte, which is beneficial for maximum diffusion and transportation of the lithium ion in the electrode. . . . . Keywords Lithium-ion batteries LiNi Mn O Ball-milling Discharge capacity Rate capability 0.5 1.5 4 −1 Introduction reversible capacity (~ 130 mAh g ) and high energy den- −1 sity(~650Whkg )comparedwithcommercialLiCoO −1 −1 Developing a new cathode material with high energy density is (518 Wh kg )and LiMn O (~400Whkg )[10, 11]. 2 4 a challenge for researchers in order to replace the current cath-
Ionics – Springer Journals
Published: May 30, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
All the latest content is available, no embargo periods.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud