Glass comprising solid electrolyte particles and lithium battery

Abstract

Glass includes an aggregate of solid electrolyte particles including Li, P, and S, wherein when a Raman spectrum of the glass is repeatedly measured and a peak at 330 to 450 cm −1 in each Raman spectrum is separated to waveforms of individual components, a standard deviation of a waveform area ratio of each component is less than 4.0.

1 - 8 . (canceled) 
     
     
         9 . A method for producing glass as aggregate of solid electrolyte particles, the method comprising:
 (a) reacting a raw material comprising lithium sulfide and a second sulfide in a hydrocarbon solvent in a grinder while grinding the raw material and   (b) reacting the raw material comprising lithium sulfide and a second sulfide in a hydrocarbon solvent in a reaction vessel;   wherein (a) and (b) are repeatedly performed.   
     
     
         10 . The method according to  claim 9 ,
 wherein the reacting the raw material in the reaction vessel is conducted at 80° C. or higher and 300° C. or lower.   
     
     
         11 . The method according to  claim 9 ,
 wherein the reacting the raw material in the grinder is conducted at 20° C. or higher and 90° C. or lower.   
     
     
         12 . The method according to  claim 9 ,
 wherein the second sulfide is at least one selected from the group consisting of phosphorous sulfide, silicon sulfide, boron sulfide, germanium nitride and aluminum sulfide.   
     
     
         13 . The method according to  claim 9 ,
 wherein the second sulfide is P 2 S 5 .   
     
     
         14 . The method according to  claim 13 ,
 wherein a mixing molar ratio of the lithium sulfide and the P 2 S 5  is 50:50 to 80:20.   
     
     
         15 . The method according to  claim 9 ,
 wherein the hydrocarbon solvent is saturated hydrocarbon, unsaturated hydrocarbon or aromatic hydrocarbon.   
     
     
         16 . The method according to  claim 9 ,
 wherein the hydrocarbon solvent is toluene.   
     
     
         17 . The method according to  claim 9 ,
 wherein a water content of the hydrocarbon solvent is 50 ppm (wt) or less.   
     
     
         18 . The method according to  claim 9 ,
 wherein the solid electrolyte particles comprise Li, P and S.   
     
     
         19 . The method according to  claim 9 ,
 wherein the reacting the raw material in the reaction vessel is conducted at 80° C. or higher and 300° C. or lower; and   the reacting of the raw material in the grinder is conducted at 20° C. or higher and 90° C. or lower.   
     
     
         20 . The method according to  claim 9 ,
 wherein the reacting the raw material in the reaction vessel is conducted at 80° C. or higher and 300° C. or lower;   the second sulfide is P 2 S 5 ; and   a mixing molar ratio of the lithium sulfide and the P 2 S 5  is 50:50 to 80:20.   
     
     
         21 . The method according to  claim 9 ,
 wherein the reacting the raw material in the reaction vessel is conducted at 80° C. or higher and 300° C. or lower;   the second sulfide is P 2 S 5 ;   a mixing molar ratio of the lithium sulfide and the P 2 S 5  is 50:50 to 80:20; and   the hydrocarbon solvent is toluene.   
     
     
         22 . The method according to  claim 9 ,
 wherein the reacting the raw material in the reaction vessel is conducted at 80° C. or higher and 300° C. or lower;   the reacting of the raw material in the grinder is conducted at 20° C. or higher and 90° C. or lower;   the second sulfide is P 2 S 5 ; and   a mixing molar ratio of the lithium sulfide and the P 2 S 5  is 50:50 to 80:20.   
     
     
         23 . The method according to  claim 9 ,
 wherein the second sulfide is P 2 S 5 ; and   a mixing molar ratio of the lithium sulfide and the P 2 S 5  is 50:50 to 80:20.   
     
     
         24 . The method according to  claim 9 ,
 wherein the second sulfide is P 2 S 5 ;   a mixing molar ratio of the lithium sulfide and the P 2 S 5  is 50:50 to 80:20; and   the hydrocarbon solvent is toluene.   
     
     
         25 . A glass as aggregate of solid electrolyte particles produced by a process comprising:
 (a) reacting a raw material comprising lithium sulfide and a second sulfide in a hydrocarbon solvent in a grinder while grinding the raw material and   (b) reacting the raw material comprising lithium sulfide and a second sulfide in a hydrocarbon solvent in a reaction vessel,   wherein (a) and (b) are repeatedly performed.   
     
     
         26 . A glass ceramic obtained by a process comprising heating the glass according to  claim 25 . 
     
     
         27 . A lithium battery, comprising:
 an electrolyte layer,   a positive electrode, and   a negative electrode,   wherein at least one of the electrolyte layer, the positive electrode, and the negative electrode comprises at least one of the glass according to  claim 25  and a glass ceramic obtained by heating the glass.