Electrolyte for polyoxometalate ionic liquid lithium ion battery and preparation method thereof
A polyoxometalate and lithium polyoxometalate technology, which is applied in the field of polyoxometalate ionic liquid lithium-ion battery electrolyte and lithium battery electrolyte, can solve narrow temperature range, safety problems, and low ignition point and other problems, to achieve the effect of wide applicable temperature range, reduced polarization, and high ignition point
Active Publication Date: 2017-05-31
中国东方电气集团有限公司
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Abstract
The invention discloses electrolyte for a polyoxometallate ionic liquid lithium ion battery. The electrolyte comprises the following raw materials: ionic liquid and lithium polyoxometallate, wherein the ionic liquid is synthesized from imidazolium cations and polyoxometallate anions; the structural formula of the imidazolium cations is shown in the specification, wherein each of R1 and R2 is one of alkyl groups with 1-6 carbon atoms; the polyoxometallate anions refer to [XY12O40]<3-> or [XY12O40]<4->, wherein X is any one of two elements P and Si, and Y is any one of two elements Mo and W. Since the lithium polyoxometallate Li3XY12O40 is in a three-dimensional skeleton structure, lithium ions can be conducted in a three-dimensional skeleton, and the polarity caused by the ion transport problem of the battery is reduced; since the lithium polyoxometallate does not contain fluorine, the moisture problem and the safety problem caused by fluorine are avoided.
Application Domain
Electrolyte accumulators manufacture
Technology Topic
Polyoxometalate ILithium electrode +9
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