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Anion Storage Behavior of Graphite Electrodes in LiBF

Anion Storage Behavior of Graphite Electrodes in LiBF

Yunju Wang, Jiayu Li, Yuhao Huang, Hongyu Wang

Langmuir. 2019 Nov 19;35(46):14804-14811.

PMID: 31660747

Abstract:

The electrolyte solutions of 1 M LiBF4 dissolved in ethyl methyl carbonate (EMC)/sulfone mixtures are applied for dual-ion batteries using graphite positive electrodes. The representative sulfone solvents include sulfolane (SL) and 3-methylsulfolane. Graphite electrodes can deliver higher capacity of anion storage in the solutions of the mixed solvents than those of pure solvents. Traditional electrochemical and in situ X-ray diffraction measurements are performed on Li/graphite cells to probe the anion intercalation process at the interface between graphite electrode and electrolyte solutions. Ionic conductivity, viscosity, and NMR tests are carried out to characterize electrolyte solutions. The effects of ion-pairing between Li+ and BF4- and the anion solvations by EMC or sulfones on the anion storage in graphite have been addressed.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP623530	Ethyl methyl carbonate		623-53-0	Price

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