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US 12,444,764 B2Granted
Complex fiber, solid state electrolyte comprising same, and metal-air battery comprising same
AssigneeFlexolyte
InventorsJung-Ho Lee, Sambhaji Shivaji Shinde, Dong-Hyung Kim
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Abstract
A solid state electrolyte is provided. The solid state electrolyte may include a base complex fiber having bacterial cellulose and chitosan bound to the bacterial cellulose.
Claims7
A method for preparing a solid state electrolyte, the method comprising:
- preparing a quaternized chitosan derivative from chitosan chloride by (a) dissolving chitosan chloride in aqueous acetic acid, and (b) treating the dissolved chitosan chloride with glycidyltrimethylammonium chloride to form the quaternized chitosan derivative;
- preparing a culture medium having the quaternized chitosan derivative;
- culturing Acetobacter xylinum in the culture medium to produce quaternized chitosan bound to bacterial cellulose;
- and
- oxidizing a surface of the quaternized chitosan bound to bacterial cellulose by using an oxidizing agent to form a solid state electrolyte, wherein the solid state electrolyte has a chitosan content that is more than 30 wt % and less than 70 wt %.
2 more elements
A method for preparing a solid state electrolyte, the method comprising:
- oxidizing a surface of bacterial a cellulose, to which quaternized chitosan is bound, by using an oxidizing agent to prepare a first complex fiber;
- binding bromine to the surface of the bacterial cellulose to form a brominated complex fiber;
- substituting bromine in the brominated complex fiber with a nitrogen-containing first functional group to prepare a second complex fiber;
- and
- crosslinking the first complex fiber and the second complex fiber to form a solid state electrolyte.
2 more elements
A method for preparing a solid state electrolyte, the method comprising:
- preparing a quaternized chitosan derivative from chitosan chloride;
- preparing a culture medium having the quaternized chitosan derivative;
- culturing Acetobacter xylinum in the culture medium to produce quaternized chitosan bound to bacterial cellulose;
- and
- oxidizing a surface of the quaternized chitosan bound to the bacterial cellulose by using an oxidizing agent to form
- a solid state electrolyte, wherein a content of the quaternized chitosan in the solid state electrolyte is more than 30 wt % and less than 70 wt %.
3 more elements
Dependencies are inferred from the claim text.