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- Choi, Nam-Soon
- Energy Materials Lab.
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Using a lithium bis(oxalato) borate additive to improve electrochemical performance of high-voltage spinel LiNi0.5Mn1.5O4 cathodes at 60 degrees C
- Author(s)
- Ha, Se-Young, Han, Jung-Gu, Song, Young-Min, Chun, Myung-Jin, Han, Sang-Il, Shin, Woo-Cheol, Choi, Nam-Soon
- Issued Date
- 2013-08
- Citation
- ELECTROCHIMICA ACTA, v.104, pp.170 - 177
- Abstract
- Lithium bis(oxalato) borate (LiBOB) is investigated as an additive for the stabilization of a high-voltage cathode-electrolyte interface. It is found that the electrochemical performance of Li/LiNi0.5Mn1.5O4 cells with a LiBOB additive is improved at 60°C. To confirm the effects of LiBOB on electrolyte oxidative decomposition, the surface chemistry of separators and high-voltage LiNi0.5Mn1.5O4 cathodes cycled in electrolytes with and without a LiBOB additive are examined using ex situ attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS).
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- ISSN
- 0013-4686
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