电解质锂盐LiBOB的固相法合成及分析

Solid-state method synthesizing and analysis of electrolyte lithium salt LiBOB

将Li2CO3、H3BO3混匀后4分批加入H2C2O4,再在80～120℃下真空干燥20～25 h,得到双草酸硼酸锂(LiBOB)粗产品。含量测定和FT-IR、TG-DTG、XRD、SEM分析的结果表明,经乙腈提纯后的样品不带结晶水,纯度高于99.9%。

Lithium bis （oxalate） borate （LiBOB） crude product was obtained by adding H2C2O4 into the mixture of H3BO3 and Li2CO3 in four batches and vacuum drying 20 - 25 h at 80 - 120 ℃. Content determination and FT-IR, TG-DTG, XRD, SEM analyses results showed that the product after purified with acetonitrile had no crystal water, the purity was higher than 99.9%.