All-solid-state lithium secondary batteries with high capacity using black phosphorus negative electrode

作者：Nagao Motohiro; Hayashi Akitoshi; Tatsumisago Masahiro^*

来源：Journal of Power Sources, 2011, 196(16): 6902-6905.

DOI：10.1016/j.jpowsour.2010.12.055

• Lithium battery
• All-solid-state battery
• Black phosphorus
• Electrode
• Sulfide electrolyte

Black phosphorus phosphorus was prepared from red phosphorus by using mixer mill and planetary ball-mill apparatuses. The composites with black phosphorus and acetylene black (AB) were also prepared by using the mixer mill apparatus. The mechanical milling of black phosphorus and AB brought about a decrease in size of secondary particles of the composites. The all-solid-state lithium cells with the composite and the Li(2)S-P(2)S(5) glass-ceramic electrolyte exhibited the first discharge capacity of 1962 mAh g(-1) and the coulombic efficiency of 89% at the current density of 0.064 mA cm(-2) (24 mA g(-1)). The all-solid-state cells worked at 3.8 mA cm(-2) (1.47 A g(-1)) at 25 degrees C and showed the excellent cycle performance with a high capacity of over 500 mAh g(-1) for 150 cycles. Black phosphorus is one of the most attractive negative electrodes with both high capacity and high-rate performance in all-solid-state lithium rechargeable batteries with sulfide electrolytes.

• 出版日期2011-8-15