Battery including aluminum components
View Patent ↗A primary lithium battery can include a current collector that includes aluminum, a positive lead that includes aluminum, or both. The aluminum battery components can have high mechanical strength and low electrical resistance.
1. A primary lithium battery comprising:
a housing;
a negative electrode comprising a lithium-containing anode active material;
a positive electrode comprising iron disulfide and a binder;
an aluminum positive electrode current collector;
a separator disposed between the negative electrode and the positive electrode and having a thickness of between 12 microns and 37 microns;
an electrolyte including lithium iodide and lithium hexafluorophosphate dissolved in a solvent including an ether; and
a positive lead including aluminum in mechanical contact with the current collector,
wherein the battery has an impedance that increases by less than 0.20 Ohms after the battery is dropped six times from a height of one meter onto a hard surface.
2. The battery of claim 1 , wherein the positive lead includes a 1000 series aluminum, 2000 series aluminum alloy, a 3000 series aluminum alloy, a 5000 series aluminum alloy, a 6000 series aluminum alloy, or a 7000 series aluminum alloy.
3. The battery of claim 1 , wherein the positive lead includes a 5000 series aluminum alloy.
4. The battery of claim 1 , wherein the positive lead includes an aluminum alloy including 0-0.4% by weight of chromium.
5. The battery of claim 1 , wherein the positive lead includes an aluminum alloy including 0.01-6.8% by weight of copper.
6. The battery of claim 1 , wherein the positive lead includes an aluminum alloy including 0.05-1.3% by weight of iron.
7. The battery of claim 1 , wherein the positive lead includes an aluminum alloy including 0.1-7% by weight of magnesium.
8. The battery of claim 1 , wherein the positive lead includes an aluminum alloy including 0-2% by weight of manganese.
9. The battery of claim 1 , wherein the positive lead includes an aluminum alloy including 0-2% by weight of silicon.
10. The battery of claim 1 , wherein the positive lead includes an aluminum alloy including less than 0.25% by weight of titanium.
11. The battery of claim 1 , wherein the positive lead includes an aluminum alloy including 0-2.3% by weight of nickel.
12. The battery of claim 1 , wherein the positive lead includes an aluminum alloy including 0-8.2% by weight of zinc.
13. The battery of claim 1 , wherein the current collector includes a 1000 series aluminum, a 2000 series aluminum alloy, a 3000 series aluminum alloy, a 5000 series aluminum alloy, a 6000 series aluminum alloy, or a 7000 series aluminum alloy.
14. The battery of claim 13 , wherein the current collector includes a 6000 series aluminum alloy.
15. The battery of claim 13 , wherein the current collector includes an aluminum alloy including 0-0.4% by weight of chromium, 0.01-6.8% by weight of copper, 0.05-1.3% by weight of iron, 0.1-7% by weight of magnesium, 0-2% by weight of manganese, 0-2% by weight of silicon, less than 0.25% by weight of titanium, 0-2.3% by weight of nickel, and 0-8.2% by weight of zinc.
16. The battery of claim 1 , wherein the positive lead includes an extension directed toward the positive electrode.
17. The battery of claim 1 , wherein the positive lead includes four or more extensions directed toward the positive electrode.
18. The battery of claim 1 , wherein the positive lead includes six or more extensions directed toward the positive electrode.
19. The battery of claim 1 , wherein the housing is cylindrical.
20. The battery of claim 1 , wherein the electrolyte includes a third lithium salt.