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US 2020/0048190 A1Published application
Ether-bridged dication, ionic liquid electrolyte and charge storage device thereof
AssigneeNational Cheng Kung University
InventorsHsisheng TENG, I-wen SUN, Hsin-Chieh HUANG, Yung-Che Yen, Jui-Cheng Chang
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Abstract
An ether-bridged dication is provided with two monovalent cations bonded via a carbon chain having ether group(s). The ether-bridged dication, monovalent cations, and anions are contained together within an ionic liquid electrolyte which is applied to a charge storage device. The ether-bridged dication, the ionic liquid electrolyte, and the charge storage device have operational abilities at room temperatures or below, and a reachable working potential of 3.5 V.
Claims10
An ionic liquid electrolyte, comprising:
- an ether-bridged dication;
- at least one monovalent cation;
- and
- at least one anion;
- wherein the ionic liquid electrolyte is formed without organic solvents;
- wherein the ether-bridged dication has two monovalent cations represented by X1 and X2, and the monovalent cations are bonded through a carbon chain having at least one ether group, wherein the ether-bridged dication has the molecular structure given as follows:
- wherein X1 and X2 are independently selected from a quatemary ammonium cation, a sulfonium cation, and a phosphonium cation;
- and
- each of a, b and c is an integral selected from 1 to 10, wherein the ether-bridged dication is 2-20 wt % of the ionic liquid electrolyte.
6 more elements
Dependencies are inferred from the claim text.