LiBOB的结构、性质和在锂离子蓄电池中的应用

Structure, properties of LiBOB and its application for lithium ion battery

双草酸硼酸锂(LiBOB)是锂离子蓄电池新兴的最后可能替代LiPF6的有机锂盐之一。详细介绍了双草酸硼酸锂的晶体结构、水相和非水相合成方法和溶解度等物理化学性质,阐述了LiBOB基电解液与石墨电极独特的匹配性,高温下电池容量不衰减,不腐蚀集流体铝等电化学特点,总结了LiBOB基电解液的不足,指明了今后发展的方向。

A new organic lithium salt, lithium bis（oxalato）borate （LiBOB）, is the most possible candidate of LiPF6 for lithium ion battery. This paper briefly discussed its crystal structure, synthetic methods in aqueous or nonaqueous phase and physicochemical properties such as solubility. The highlights such as a perfect compatibility with carbon anode, excellent cycle at elevated temperatures and noncorrosive to current collector of aluminum were described. Disadvantage and the perspective of LiBOB-based electrolyte were also reviewed.