All-solid state lithium carbon monofluoride batteries
A solid state lithium carbon monofluoride battery includes an anode comprising Li, a solid electrolyte, and a cathode including CF x and LPS. The cathode can also include a carbon compound. The solid electrolyte can include LPS. The LPS can include β-Li 3 PS 4 . The cathode LPS can include β-Li 3 PS 4 . A method of making a battery is also disclosed.
1. A solid state lithium carbon monofluoride primary battery, comprising:
an anode comprising Li;
a solid electrolyte comprising β-Li 3 PS 4 ;
a cathode comprising carbon compound, CF x , and β-Li 3 PS 4 ;
wherein the battery has a capacity utilization of greater than 865 mAh/g, and greater than the theoretical capacity for a CF x cathode.
2. The battery of claim 1 , wherein the cathode comprises 10%-95% CF x , 5%-70% β-Li 3 PS 4 , and 0% to 50% carbon compound, based on the total weight of the cathode.
3. The battery of claim 1 , wherein the cathode further comprises amorphous LiF.
4. The battery of claim 1 , wherein the carbon is carbon black.