Rechargeable Ni-Li Battery Integrated Aqueous/Nonaqueous System

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• 作者：Huiqiao Li ; Yonggang Wang ; Haitao Na ; Haimei Liu ; Haoshen Zhou
• 刊名：Journal of the American Chemical Society
• 出版年：2009
• 出版时间：October 28, 2009
• 年：2009
• 卷：131
• 期：42
• 页码：15098-15099
• 全文大小：139K
• 年卷期：v.131,no.42(October 28, 2009)
• ISSN：1520-5126

文摘

A rechargeable Ni-Li battery, in which nickel hydroxide serving as a cathode in an aqueous electrolyte and Li metal serving as an anode in an organic electrolyte were integrated by a superionic conductor glass ceramic film (LISICON), was proposed with the expectation to combine the advantages of both a Li-ion battery and Ni-MH battery. It has the potential for an ultrahigh theoretical energy density of 935 Wh/kg, twice that of a Li-ion battery (414 Wh/kg), based on the active material in electrodes. A prototype Ni-Li battery fabricated in the present work demonstrated a cell voltage of 3.47 V and a capacity of 264 mAh/g with good retention during 50 cycles of charge/discharge. This battery system with a hybrid electrolyte provides a new avenue for the best combination of electrode/electrolyte/electrode to fulfill the potential of high energy density as well as high power density.