Negative electrode of power storage device and power storage device

Abstract

A mixture of amorphous PAHs and at least one of a carrier ion storage metal, a Sn compound, a carrier ion storage alloy, a metal compound, Si, Sb, and SiO 2 is used as the negative electrode active material. The theoretical capacity of amorphous PAHs greatly exceeds that of a graphite-based carbon material. Thus, the use of amorphous PAHs enables the negative electrode active material to have a higher capacity than in the case of using the graphite-based carbon material. Further, addition of at least one of the carrier ion storage metal, the Sn compound, the carrier ion storage alloy, the metal compound, Si, Sb, and SiO 2 to the amorphous PAHs enables the negative electrode active material to have a higher capacity than the case of only using the amorphous PAHs.

What is claimed is: 
     
         1 . A negative electrode of a power storage device, the negative electrode comprising:
 a negative electrode active material containing amorphous PAHs and at least one of a carrier ion storage metal, a Sn compound, a carrier ion storage alloy, a metal compound, Si, Sb, and SiO 2 ; and   a current collector.   
     
     
         2 . The negative electrode of a power storage device, according to  claim 1 , wherein the carrier ion storage metal is any one of Sn, Al, Zn, and Bi. 
     
     
         3 . The negative electrode of a power storage device, according to  claim 1 , wherein the Sn compound is any one of SnO 2 , Sn 2 P 2 O 7 , SnPBO 6 , and SnPO 4 Cl. 
     
     
         4 . The negative electrode of a power storage device according to  claim 1 , wherein the carrier ion storage alloy is any alloy represented by Sn 2 M (M is Fe, Co, Mn, V, or Ti) 
     
     
         5 . The negative electrode of a power storage device, according to  claim 1 , wherein the metal compound is any one of CoO, NiO, MnO 2 , and FePO 4 . 
     
     
         6 . The negative electrode of a power storage device, according to  claim 1 , wherein a carrier ion of the carrier ion storage metal or the carrier ion storage alloy is either of a Li ion and a Na ion. 
     
     
         7 . The negative electrode of a power storage device, according to  claim 1 , wherein the amorphous PAHs have a spherical shape. 
     
     
         8 . The negative electrode of a power storage device, according to  claim 1 , wherein any one of the carrier ion storage metal, the metal compound, Si, Sb and SiO 2  is attached to an outer surface of the amorphous PAHs. 
     
     
         9 . The negative electrode of a power storage device, according to  claim 1 , wherein the amorphous PAHs contain at least one of the carrier ion storage metal, the metal compound, Si, Sb, and SiO 2  at greater than or equal to 1 wt % and less than or equal to 50 wt %. 
     
     
         10 . A power storage device comprising:
 a negative electrode;   a positive electrode; and   an electrolyte solution containing an electrolyte,   wherein the negative electrode comprises a negative electrode active material containing amorphous PAHs and at least one of a carrier ion storage metal, a Sn compound, a carrier ion storage alloy, a metal compound, Si, Sb, and SiO 2 ; and a current collector.   
     
     
         11 . An electric device comprising the power storage device according to  claim 10 . 
     
     
         12 . An electronic device comprising the power storage device according to  claim 10 .