Solid electrolytes and methods for making the same
AssigneeThe Florida State University Research Foundation, Inc.
InventorsTej Prasad Poudel, Yan-Yan Hu, Ifeoluwa Peter Oyekunle
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Abstract
In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to solid chalcohalide electrolytes and the efficient synthesis of solid chalcohalide electrolytes. The electrolytes have the general formula AaMbNcXdYeSf and have relatively high ionic conductivity. The electrolytes can be a component of different types of batteries. The process of synthesizing the electrolytes can be done with cost-effective materials, which is useful for scaling-up production of batteries such as all-solid-state batteries.
Claims20
A method for making a compound having the formula AaMbNcXdYeSf, wherein
- A is Li, Na, K, or any combination thereof;
- M is Al, Ga, In, or any combination thereof;
- N is Mg, Ca, Zn, or any combination thereof;
- X and Y are, independently, F, Cl, Br, or I;
- S is sulfur;
- a is from about 1 to about 4;
- b is from about 0.5 to about 5.0;
- c is greater than or equal to 0 to about 1.5;
- d is from about 1 to about 5;
- e is greater than or equal to 0 to about 3;
- f is greater than 0 to about 3;
- and
- the sum (a+3b+2c) is equal to the sum (d+e+2f),
- the method comprising:
- mixing in the solid state the following components:
- (i) A2S;
- (ii) AX, AY, or a combination thereof;
- (iii) MX3, MY3, or a combination thereof;
- and (iv) NX2, NY2, or a combination thereof to produce a first mixture.
Dependencies are inferred from the claim text.