Nanoporous separators for batteries and related manufacturing methods
Provided is a lithium battery, wherein the battery comprises an anode, a cathode, wherein the cathode comprises one or more transition metals, an electrolyte, and a porous separator interposed between the cathode and anode, wherein the separator comprises an anionic compound. Also provided are methods of manufacturing such batteries.
1. A battery comprising:
a porous separator;
an electrode layer having a first side and a second side;
said first side of said electrode layer adjacent to a surface of said porous separator;
a current collector layer;
said second side of said electrode layer adjacent to a surface of said current collector layer; and
non-conductive material disposed adjacent said electrode layer and adjacent to said porous separator but not adjacent said current collector layer and wherein said non-conductive material is of a different material than said porous separator and has a resistivity of 1 megaohm per square or higher, and
an electrically conductive tabbing patch disposed adjacent a surface of the non-conductive material.
2. The battery of claim 1 , wherein said non-conductive material provides mechanical strength to said battery.
3. The battery of claim 1 , wherein said non-conductive material provides tensile strength to said battery.
4. The battery of claim 1 , wherein said non-conductive material is disposed along the periphery of said electrode layer.
5. The battery of claim 1 , wherein said non-conductive material has a thickness that does not exceed the thickness of said adjacent electrode layer.
6. The battery of claim 1 , wherein said non-conductive material comprises non-sintered metal or metal oxide particles.
7. The battery of claim 1 , wherein said non-conductive material is formed from a coating comprising non-sintered metal or metal oxide particles.
8. The battery of claim 1 , wherein said electrode layer is a cathode layer.
9. The battery of claim 1 , wherein said electrode layer is an anode layer.
10. A battery comprising:
a porous separator;
an electrode layer having a first side and a second side;
said first side of said electrode layer adjacent to a surface of said porous separator;
a current collector layer;
said second side of said electrode layer adjacent to a surface of said current collector layer; and
at least one reinforcement area disposed along the periphery of said electrode layer but not adjacent to a surface of said current collector layer, wherein said at least one reinforcement area comprises non-conductive material and wherein said non-conductive material is of a different material than said porous separator and has a resistivity of 1 megaohm per square or higher, and
an electrically conductive tabbing patch disposed adjacent a surface of the at least one edge reinforcement area.
11. The battery of claim 10 , wherein said at least one reinforcement area forms an edge of said battery.
12. The battery of claim 10 , wherein said at least one reinforcement area is disposed discontinuously along the periphery of said electrode layer.
13. The battery of claim 10 , wherein said at least one reinforcement area extends from said current collector layer to said porous separator.
14. The battery of claim 10 , wherein said non-conductive material comprises non-sintered metal or metal oxide particles.
15. The battery of claim 10 , wherein said at least one reinforcement area has a thickness that does not exceed the thickness of said adjacent electrode layer.
16. The battery of claim 10 , wherein said at least one reinforcement area is formed from a coating comprising non-sintered metal or metal oxide particles.
17. The battery of claim 10 , wherein said electrode layer is a cathode layer.
18. The battery of claim 10 , wherein said electrode layer is an anode layer.
19. The battery of claim 10 , wherein said at least one reinforcement area provides mechanical strength to said battery.
20. The battery of claim 10 , wherein said at least one reinforcement area provides tensile strength to said battery.