Elevated temperature performance of high voltage Li_1+yMn_1.5Ni_0.5O_4−xF_x spinel in window-shifted Li-ion cells

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• 作者：Nathalie Pereira ; ^{npereira@rutgers.edu} ; Michael C. Ruotolo ; Matthew Y. Lu ; Fadwa Badway ; Glenn G. Amatucci
• 关键词：High voltage cathode spinel ; Li-ion ; Window-shifted systems ; High-temperature cycling stability ; Lithium titanate ; Titanium disulfide
• 刊名：Journal of Power Sources
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：338
• 期：Complete
• 页码：145-154
• 全文大小：2791 K
• 卷排序：338

文摘

Li1+yMn1.5Ni0.5O4−xFx shows good 55 °C cycling in Li-ion window-shifted systems. LMNOF/TiS2 achieves 80% capacity after 500 cycles at 55 °C in carbonate electrolytes. LiBF4 salt improves 55 °C cycling of LMNOF/LTO cells compared to LiPF6 in carbonates. Poly(2-vynilpyridine) additive boots LMNOF/LTO cycling at 55 °C in LiBF4 electrolyte. TiS2-system further enhances cycling stability at 55 °C over LTO with LMNOF.