Hydrothermal synthesis and electrochemical properties of alpha-manganese sulfide submicrocrystals as an attractive electrode material for lithium-ion batteries

作者：Zhang, Ning; Yi, Ran; Wang, Zhong; Shi, Rongrong; Wang, Haidong; Qiu, Guanzhou; Liu, Xiaohe^*

来源：Materials Chemistry and Physics, 2008, 111(1): 13-16.

DOI：10.1016/j.matchemphys.2008.03.040

• manganese sulfide
• anode material
• lithium-ion battery
• electrochemical performance

A convenient hydrothermal synthetic route has been successfully developed to prepare stable rock-salt-type structure alpha-Mns submicrocrystals under mild conditions. In this synthetic system, hydrated manganese chloride (MnCl4 center dot 4H(2)O) was used to supply a highly reactive manganese source, thiourea ((NH2)(2)CS) was used to supply the sulfide source and aqueous hydrazine (N2H4 center dot H2O) was used as both alkaline and reducing agent. The results revealed that the electrochemical performance of the alpha-MnS submicrocrystals may be associated with the degree of crystallinity and particle size of samples. The initial lithiation capacity of the a-MnS submicrocrystals obtained at 120 degrees C is 1327 mAh g(-1) at 0.7 V versus Li/Li+, which exhibited alpha-MnS submicrocrystals is extremely promising anode material for lithium-ion batteries and has great potential applications in the future.

• 出版日期2008-9-15
• 单位中南大学; 北京有色金属研究总院