Glass Ceramic Electrolyte

The maximum conductivity of 2 22 ms cm 1 was achieved at room temperature.

Glass ceramic electrolyte. New glass ceramic electrolytes were prepared through metal phosphides doping in li 7 p 3 s 11. Additionally the glass ceramic electrolyte system showed higher thermal and voltage stability. Cross section of the interface between the glass ceramic sealant left and the anode supported ysz electrolyte right. Concerning the bonding at the interface between crofer22apu and the glass ceramic sealant the glass ceramic was successfully sealed to the crofer22apu as received as well as pre oxidized 950 c 2 h air atmosphere.

Sulfide compounds in crystalline amorphous and partially crystalline forms have been used as lithium ion conductors. The glass ceramic electrolyte system showed significantly higher ionic conductivity of 9 22 ms cm 1 at room temperature as compared to the polypropylene membrane. The crystallization usually would decrease the ionic conductivity but the precipitation of a superionic conducting crystal from a precursor glass can enhance ionic conductivity. One example is a li 2 s p 2 s 5 glass or glass ceramic the maximum conductivity for which occurs at 20 30 p 2 s 5 depending on the degree of crystallization the conductivities of some li 2 s p 2 s 5 electrolytes are shown in fig.

Meanwhile the interfacial capacitances between li2s p2s5 based solid electrolytes and the licoo2 cathode have decreased after dual doping of ws2 and libr indicating a synergetic effect for the doped li7p3s11 glass ceramic electrolytes in terms of the ionic conductivities and interfacial compatibilities.