| 摘要 |
A power storage device with favorable battery characteristics and a manufacturing method thereof are provided. The power storage device includes at least a positive electrode and a negative electrode provided so as to face the positive electrode with an electrolyte provided therebetween. The positive electrode includes a collector and a film containing an active material over the collector. The film containing the active material contains LieFejPgOh satisfying relations 3.5≰h/g≰4.5, 0.6≰g/f≰1.1, and 0≰e/f≰1.3 and LiaFebPcOd satisfying relations 3.5≰d/c≰4.5, 0.6≰c/b≰1.8, and 0.7≰a/b≰2.8. The film containing the active material contains the LiaFebPcOd satisfying the relations 3.5≰d/c≰4.5, 0.6≰c/b≰1.8, and 0.7≰a/b≰2.8 in a region which is in contact with the electrolyte.
|
