Anode material for rechargeable li-ion batteries

Abstract

Materials, designs, methods of manufacture, and devices are provided for an anode material for a rechargeable lithium-ion battery. For example, an anode material may include Li3±xV2±yO5±z. 0≤x≤7, 0≤y≤1, and z may be based on the charge resulting from Li3±x and V2±y. Also, a cell can include a lithiated anode material. The lithiated anode material may include Li3±xV2±yO5±z. The lithiated anode material may be casted on a first substrate to form a lithiated anode, having a separator stacked on the lithiated anode. The separator may include electrolytes. A cathode can be stacked on the separator. The cathode being formed by casting a cathode material on a second substrate.

What is claimed is: 
     
         1 . An anode material comprising Li 3±x V 2±y O 5±z , wherein 0≤x≤7, 0≤y≤1, and z is based on the charge resulting from Li 3±x  and V 2±y . 
     
     
         2 . The anode material of  claim 1 , wherein the Li 3±x V 2±y O 5±z  is an omega structure, wherein the omega structure is a disordered rocksalt structure in the Fm 3 m space group. 
     
     
         3 . The anode material of  claim 1 , wherein lithium is reversibly inserted to form at least one of Li 4 V 2±y O 5±z  and Li 5 V 2±y O 5±z . 
     
     
         4 . The anode material of  claim 3 , wherein the Li 4 V 2±y O 5±z  or Li 5 V 2±y O 5±z  is an omega structure, wherein the omega structure is a disordered rocksalt structure in the Fm 3 m space group. 
     
     
         5 . The anode material of  claim 1 , further comprising one or more materials selected from the group of silicon, tin, graphite, or non-graphitized carbon, wherein the one or more materials are blended with the anode material. 
     
     
         6 . The anode material of  claim 1 , wherein the cathode is selected from the group comprising one or more of one or more of LiMn 2 O 4 , LiNi x Co y Mn z O 2  where x+y+z=1, or other cathodes. 
     
     
         7 . The anode material of  claim 1 , further comprising repeating the above steps to form a pouch-type cell. 
     
     
         8 . An anode material comprising a composition defined by Li 3 V x M y O 5±z , wherein M is a dopant, and wherein 0.5<x<2, 0<y<1, and z is based on a charge from Li 3 , V x , and M y . 
     
     
         9 . The anode material of  claim 8 , wherein the Li 3 V x M y O 5±z  is an omega structure, wherein the omega structure is a disordered rocksalt structure in the Fm 3 m space group. 
     
     
         10 . The anode material of  claim 8 , further comprising reversibly inserting lithium to form Li 4 V x M y O 5±z  or Li 5 V x M y O 5±z . 
     
     
         11 . The anode material of  claim 10 , wherein the Li 4 V x M y O 5±z  or Li 5 V x M y O 5±z  is an omega structure, wherein the omega structure is a disordered rocksalt structure in the Fm 3 m space group. 
     
     
         12 . The anode material of  claim 8 , further comprising one or more materials selected from the group of silicon, tin, graphite, or non-graphitized carbon, wherein the one or more materials are blended with the anode material. 
     
     
         13 . The anode material of  claim 8 , wherein the dopant is selected from the group comprising one or more of Mg, Ca, Sc, B, Y, Al, Ti, Zr, Nb, Ta, Cr, Mo, or W. 
     
     
         14 . The anode material of  claim 8 , wherein the Li 3 V x M y O 5±z  is paired with a cathode. 
     
     
         15 . The anode material of  claim 14 , wherein the cathode is selected from the group comprising one or more of LiMn 2 O 4 , LiNi x Co y Mn z O 2  where x+y+z=1, or other cathodes. 
     
     
         16 . The anode material of  claim 8 , further comprising repeating the above steps to form a pouch-type cell. 
     
     
         17 . The anode material of  claim 8 , wherein the cell is rolled to form a cylinder cell. 
     
     
         18 . The anode material of  claim 8 , wherein the anode is paired with conductive additives and binders. 
     
     
         19 . The anode material of  claim 18 , wherein the conductive additives comprises conductive carbon additives. 
     
     
         20 . An anode material comprising a composition defined by Li 3±X V 2±Y M y O 5±Z , wherein M is a dopant, and wherein 0<x<2, 0<y<1, and z is based on a charge from Li 3±X , V 2±Y , and M y . 
     
     
         21 . A cell, comprising
 a lithiated anode material, wherein the lithiated anode material comprises Li 3±x V 2±y O 5±z , wherein 0≤x≤7, 0≤y≤1, and z is based on the charge resulting from Li 3±x  and V 2±y , wherein the lithiated anode material is casted on a first substrate to form a lithiated anode;   a separator stacked on the lithiated anode, wherein the separator includes electrolytes;   a cathode stacked on the separator, wherein the cathode is formed by casting a cathode material on a second substrate; and   a packet foil surrounding the lithiated anode, the separator, and the cathode.   
     
     
         22 . A method of manufacturing a cell, the method comprising:
 forming a lithiated anode material by applying a reducing agent to a powder, wherein the lithiated anode material comprises an omega structure Li 3 V 2 O 5 , wherein the omega structure is a disordered rocksalt structure in the Fm 3 m space group, wherein the reducing agent comprises lithium, and wherein the powder comprises Li 3 V 2 O 5 ;   casting the lithiated anode material on a first substrate to form a lithiated anode;   casting a cathode material on a second substrate to form a cathode;   stacking a separator on the lithiated anode; and   stacking a cathode on the separator.   
     
     
         23 . The method of  claim 22 , wherein the first substrate comprises copper. 
     
     
         24 . The method of  claim 22 , wherein the lithiated anode further comprises one or more materials selected from the group of silicon, tin, graphite, or non-graphitized carbon. 
     
     
         25 . The method of  claim 22 , wherein the cathode is selected from the group comprising one or more of LiMn 2 O 4  and LiNi x Co y Mn z O 2 , where x+y+z=1. 
     
     
         26 . The method of  claim 22 , wherein the second substrate comprises aluminum. 
     
     
         27 . A method of manufacturing a cell, the method comprising:
 casting an anode material on a first substrate to form an anode, wherein the anode material comprises V 2 O 5 ;   casting a cathode material on a second substrate to form a cathode;   stacking a separator on the anode;   stacking the cathode on the separator; and   applying an electrode to the anode to synthesize the anode into a lithiated anode, wherein the electrode comprises lithium, wherein the lithiated anode comprises an omega structure Li 3 V 2 O 5 , and wherein the omega structure is a disordered rocksalt structure in the Fm 3 m space group.   
     
     
         28 . A method of manufacturing a lithiated anode, the method comprising:
 casting an anode material on a first substrate to form an anode, wherein the anode material comprises V 2 O 5 ;   pressing lithium on the anode to form a pressed anode;   casting a cathode material on a second substrate to form a cathode;   stacking a separator on the pressed anode;   stacking the cathode on the separator; and   injecting the separator with electrolytes, thereby synthesizing the pressed anode into a lithiated anode.   
     
     
         29 . A method of manufacturing a cell, the method comprising:
 casting an anode material on a first substrate to form an anode, wherein the anode material comprises V 2 O 5      forming a lithiated anode by applying a reducing agent to an anode, wherein the lithiated anode comprises an omega structure Li 3 V 2 O 5 , wherein the omega structure is a disordered rocksalt structure in the Fm 3 m space group, wherein the reducing agent comprises lithium, and wherein the anode comprises Li 3 V 2 O 5 .   
     
     
         30 . The method of  claim 29 , further comprising:
 casting a cathode material on a second substrate to form a cathode;   stacking a separator on the lithiated anode; and   stacking a cathode on the separator.