Temperature-dependent oxygen behavior of LixNi0.5Mn1.5O4 cathode material for lithium battery | Zendy

Hyun Woo Choi | Zendy; Su Jae Kim | Zendy; Myung Yung Jeong | Zendy; Seongsu Lee | Zendy; Young Hoon Rim | Zendy; Yong Suk Yang | Zendy

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Temperature-dependent oxygen behavior of LixNi0.5Mn1.5O4 cathode material for lithium battery

Author(s) -

Hyun Woo Choi,

Su Jae Kim,

Myung Yung Jeong,

Seongsu Lee,

Young Hoon Rim,

Yong Suk Yang

Publication year - 2016

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4968566

Subject(s) - spinel , materials science , oxygen , cathode , lithium (medication) , atmospheric temperature range , battery (electricity) , argon , chemical engineering , inorganic chemistry , analytical chemistry (journal) , thermodynamics , metallurgy , chemistry , organic chemistry , endocrinology , medicine , power (physics) , physics , engineering

We have investigated the temperature-dependent oxygen behavior in the lithium battery cathode LixNi0.5Mn1.5O4 (LNMO) materials in the temperature range 30-1000 °C. As the temperature increases, oxygen release occurs and the change of crystal structures from the face centered cubic spinel at 30 °C to other phases follows. The amount of released oxygen and the changed crystalline phases are dependent on Li content and temperature. These phenomena are reversible against temperature in air, but not in vacuum and argon gas environments. This study illustrates the important role of temperature and atmospheric environments in synthesizing the LNMO battery materials

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