采用改进的固相法制备出了电解质锂盐双草酸硼酸锂(LiBOB),其方法比原来的固相法更简单、环保,且产品产率和纯度都很高。通过红外光谱、核磁共振氢谱和X射线衍射分析考察了LiBOB复配电解液。结果表明:LiBOB复配电解液不仅在循环伏安测试中表现出了较高的氧化电位(>5.6V),在高温下(30℃)也呈现出了较好的容量保持率,经过100次循环后,容量保持率在90%以上。
Using improved solid-phase method,the electrolyte-lithium oxalate borate was prepared,and this way was easier,more environmental and had higher purity and yield.LiBOB complex electrolyte was investigated by IR,NMR and X-ray diffraction analysis.According to the results,LiBOB compound electrolyte was not merely showing higher oxidation potential(>5.6V) in circulation volt (CV) test,but also manifested better volume preservation rate at high temperature(30℃),over 90%.
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