Battery including aluminum components
First Claim
Patent Images
1. A primary lithium battery comprising:
- a cylindrical housing having a first end and a second end and having a continuous external wall defining an opening at the first end and enclosing the second end;
an anode including a lithium-containing anode active material;
a cathode within the housing comprising a current collector, the current collector having an exposed end shaped into a crown including aluminum;
a separator within the housing between the anode and the cathode;
a positive lead including aluminum within the housing in contact with the crown; and
a positive external contact in contact with the positive lead, closing the opening defined by the external wall at the end of the housing,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.
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Abstract
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.
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Citations
35 Claims
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1. A primary lithium battery comprising:
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a cylindrical housing having a first end and a second end and having a continuous external wall defining an opening at the first end and enclosing the second end; an anode including a lithium-containing anode active material; a cathode within the housing comprising a current collector, the current collector having an exposed end shaped into a crown including aluminum; a separator within the housing between the anode and the cathode; a positive lead including aluminum within the housing in contact with the crown; and a positive external contact in contact with the positive lead, closing the opening defined by the external wall at the end of the housing, 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A primary lithium battery comprising:
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a cylindrical housing having a first end and a second end and having a continuous external wall defining an opening at the first end and enclosing the second end; an anode including a lithium-containing anode active material; a cathode within the housing including a current collector including aluminum, the current collector having an exposed end shaped into a crown; a separator within the housing between the anode and the cathode; a positive lead including aluminum within the housing in contact with the crown; and a positive external contact in contact with the positive lead, closing the opening defined by the external wall at the end of the housing. 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. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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Specification