화학공학소재연구정보센터
Journal of Power Sources, Vol.196, No.16, 6902-6905, 2011
All-solid-state lithium secondary batteries with high capacity using black phosphorus negative electrode
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. (C) 2010 Elsevier B.V. All rights reserved.