Ionic conduction properties of PVDF-HFP type gel polymer electrolytes with lithium imide salts

Article Abstract:

A new study investigates the conduction properties of gel polymer electrolytes comprising lithium imide salts, LiN(CF3SO2)2, LiN(C2F5SO2)2 and PVFD-HFP copolymers.

Colloids, Chemistry, Physical and theoretical, Physical chemistry, Electrolytic cells

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Conduction mechanisms of PVDF-type gel polymer electrolytes of lithium prepared by a phase inversion process

Article Abstract:

There are two processes in the gel formation, introduction of the solution from the outside to cavities of the host polymer and the subsequent penetration of the solution into the cavities in the polymer chains to form a swollen gel. The PVDF gel electrolytes are composed of a polymer from the phase inversion technique and a lithium electrolyte solution.

All Other Basic Inorganic Chemical Manufacturing, Lithium Compounds, Polymers

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Ionic mobility of cation and anion of lithium gel electrolytes measured by pulsed gradient spin-echo NMR technique under direct electric field

Article Abstract:

Pulsed gradient spin-echo (PGSE) NMR is used by applying a direct electric field during the spin-echo measurements for determining the ionic mobilities of the individual cations and anions of the lithium gel electrolyte, LiN(CF3SO2)(sub 2)-EC/DEC-PVDF-HFP. The mobilities of the lithium ion and the anion were 3.6 x 10(super -5) and 9.4 x 10(super -5) cm(super 2) S(super -1) V(super -1) respectively, which were consistent with the mobility estimated from the electrical conductivity.

Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Lithium, Usage, Nuclear magnetic resonance spectroscopy, Ionic mobility, Chemical properties, NMR spectroscopy

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