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Oxidation State of Manganese in LiMn2O4 Powders and its Effect on Electrochemcal Properties

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  • URLhttps://db.koreascholar.com/Article/Detail/4387
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한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

[ ] powders for lithium ion batteries were synthesized from two separate raw material pairs of LiOH/MnO and . The powders prepared at 780 and and their difference of electrochemical properties were investigated. Both powders calcined at 780 and were composed of a single-phase spinel structure but those treated at showed a lower intensity ratio of to , a slightly larger lattice parameter, and an increased discharge capacity by 10% under voltage range. The XPS study on the oxidation states of manganese repealed that powders made from LiOH/MnO had less ion and gave better battery performances than those from .

저자
  • Kim
  • Seon-Hye
  • Lee
  • Kook-Jae
  • Shim
  • Kwang-Bo
  • Kim
  • Chang-Sam