Medical device having lithium-ion battery
First Claim
1. A medical device comprising:
- a rechargeable lithium-ion battery for providing power to the medical device, the lithium-ion battery comprising;
a positive electrode comprising a current collector, a first active material, and a second active material; and
a negative electrode comprising a current collector and a third active material, the third active material comprising a titanate material;
wherein the first active material, second active material, and third active materials are configured to allow doping and undoping of lithium ions; and
wherein the second active material exhibits charging and discharging capacity below a corrosion potential of the current collector of the negative electrode and above a decomposition potential of the first active material;
wherein the battery has a capacity between approximately 10 mAh and 1000 mAh.
1 Assignment
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Accused Products
Abstract
An exemplary embodiment relates to a medical device that includes a rechargeable lithium-ion battery for providing power to the medical device. The lithium-ion battery includes a positive electrode comprising a current collector, a first active material, and a second active material. The lithium-ion battery also includes a negative electrode comprising a current collector and a third active material, the third active material comprising a titanate material. The first active material, second active material, and third active materials are configured to allow doping and undoping of lithium ions. The second active material exhibits charging and discharging capacity below a corrosion potential of the current collector of the negative electrode and above a decomposition potential of the first active material.
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Citations
62 Claims
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1. A medical device comprising:
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a rechargeable lithium-ion battery for providing power to the medical device, the lithium-ion battery comprising; a positive electrode comprising a current collector, a first active material, and a second active material; and a negative electrode comprising a current collector and a third active material, the third active material comprising a titanate material; wherein the first active material, second active material, and third active materials are configured to allow doping and undoping of lithium ions; and wherein the second active material exhibits charging and discharging capacity below a corrosion potential of the current collector of the negative electrode and above a decomposition potential of the first active material; wherein the battery has a capacity between approximately 10 mAh and 1000 mAh. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical device comprising:
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a rechargeable lithium-ion battery for providing power to the medical device, the lithium-ion battery comprising; a positive electrode comprising a current collector, a first active material, and a second active material; and a negative electrode comprising a current collector and a third active material, the third active material comprising a titanate material; wherein the first active material, second active material, and third active materials are configured to allow doping and undoping of lithium ions; and wherein the second active material exhibits charging and discharging capacity below a corrosion potential of the current collector of the negative electrode and above a decomposition potential of the first active material; wherein the titanate material comprises a lithium titanate material. - View Dependent Claims (12, 13, 14, 15)
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16. A medical device comprising:
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a rechargeable lithium-ion battery for providing power to the medical device, the lithium-ion battery comprising; a positive electrode comprising a current collector, a first active material, and a second active material; and a negative electrode comprising a current collector and a third active material, the third active material comprising a titanate material; wherein the first active material, second active material, and third active materials are configured to allow doping and undoping of lithium ions; and wherein the second active material exhibits charging and discharging capacity below a corrosion potential of the current collector of the negative electrode and above a decomposition potential of the first active material; wherein the first active material comprises at least one of a material of the form LiCoxNi(1−
x−
y)O2, a material in the form LiNixCoyAlzO2, and a material in the form LiCoxMnyNi(1−
x−
y)O2. - View Dependent Claims (17, 18, 19)
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20. A device for providing at least one of a therapeutic treatment and a diagnostic function to a patient comprising:
a rechargeable battery for providing power to the device, the battery comprising; a positive current collector; a negative current collector; an active material layer provided on the positive current collector, the active material layer comprising a first active material for doping and de-doping lithium ions and a second active material for doping and de-doping lithium ions, the second active material exhibiting charge and discharge capacity below a corrosion potential of the negative current collector, the second active material being lithiated such that it includes electrochemically active lithium; and a third active material comprising a lithium titanate material provided on the negative current collector for doping and de-doping lithium ions; wherein the battery has a capacity between approximately 10 mAh and 1000 mAh. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A system for providing at least one of a therapeutic treatment and a diagnostic function to a patient comprising:
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a lithium-ion battery configured to provide power to the system and being capable of being charged and discharged, the lithium-ion battery comprising; a negative electrode having a current collector comprising copper and an active material comprising a titanate material provided thereon; and a positive electrode comprising a current collector comprising aluminum having a primary active material and a secondary active material provided on at least one side thereof, the secondary active material comprising a lithiated form of a material configured to provide charging and discharging capacity for the positive electrode below a corrosion potential of the negative current collector and above a decomposition potential of the primary active material; is whereby the lithium-ion battery may be discharged to near-zero-voltage conditions without degradation to the cyclable capacity of the battery; wherein the lithium-ion battery has a capacity between approximately 10 mAh and 1000 mAh. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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39. A system for providing at least one of a therapeutic treatment and a diagnostic function to a patient comprising:
a lithium-ion battery configured to provide power to the system and being capable of being charged and discharged, the lithium-ion battery comprising; a negative electrode having a current collector comprising copper and an active material comprising a titanate material provided thereon; and a positive electrode comprising a current collector comprising aluminum having a primary active material and a secondary active material provided on at least one side thereof, the secondary active material comprising a lithiated form of a material configured to provide charging and discharging capacity for the positive electrode below a corrosion potential of the negative current collector and above a decomposition potential of the primary active material; wherein the primary active material comprises LiCoO2; and wherein the current collector of the negative electrode comprises titanium; whereby the lithium-ion battery may be discharged to near-zero-voltage conditions without degradation to the cyclable capacity of the battery.
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40. A system for providing at least one of a therapeutic treatment and a diagnostic function to a patient comprising:
a lithium-ion battery configured to provide power to the system and being capable of being charged and discharged, the lithium-ion battery comprising; a negative electrode having a current collector comprising copper and an active material comprising a titanate material provided thereon; and a positive electrode comprising a current collector comprising aluminum having a primary active material and a secondary active material provided on at least one side thereof, the secondary active material comprising a lithiated form of a material configured to provide charging and discharging capacity for the positive electrode below a corrosion potential of the negative current collector and above a decomposition potential of the primary active material; wherein the primary active material comprises LiCoO2; and wherein the secondary active material comprises a lithiated form of V6O13; whereby the lithium-ion battery may be discharged to near-zero-voltage conditions without degradation to the cyclable capacity of the battery.
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41. A system for providing at least one of a therapeutic treatment and a diagnostic function to a patient comprising:
a lithium-ion battery configured to provide power to the system and being capable of being charged and discharged, the lithium-ion battery comprising; a negative electrode having a current collector comprising copper and an active material comprising a titanate material provided thereon; and a positive electrode comprising a current collector comprising aluminum having a primary active material and a secondary active material provided on at least one side thereof, the secondary active material comprising a lithiated form of a material configured to provide charging and discharging capacity for the positive electrode below a corrosion potential of the negative current collector and above a decomposition potential of the primary active material; is wherein the primary active material comprises LiCoO2; and wherein the secondary active material comprises a lithiated form of LiMn2O4; whereby the lithium-ion battery may be discharged to near-zero-voltage conditions without degradation to the cyclable capacity of the battery.
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42. A system for providing at least one of a therapeutic treatment and a diagnostic function to a patient comprising:
a lithium-ion battery configured to provide power to the system and being capable of being charged and discharged, the lithium-ion battery comprising; a negative electrode having a current collector comprising copper and an active material comprising a titanate material provided thereon; and a positive electrode comprising a current collector comprising aluminum having a primary active material and a secondary active material provided on at least one side thereof, the secondary active material comprising a lithiated form of a material configured to provide charging and discharging capacity for the positive electrode below a corrosion potential of the negative current collector and above a decomposition potential of the primary active material; is wherein the primary active material comprises LiCoO2; and wherein the secondary active material comprises a material selected from the group consisting of lithiated forms of V2O5, Li5Ti4O12, LixVO2, V3O8, MoO3, TiS2, WO2, MoO2, RuO2, LiMxMn(2−
x)O4, and combinations thereof;whereby the lithium-ion battery may be discharged to near-zero-voltage conditions without degradation to the cyclable capacity of the battery.
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43. A system for providing at least one of a therapeutic treatment and a diagnostic function to a patient comprising:
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a lithium-ion battery configured to provide power to the system and being capable of being charged and discharged, the lithium-ion battery comprising; a negative electrode having a current collector comprising copper and an active material comprising a titanate material provided thereon; and a positive electrode comprising a current collector comprising aluminum having a primary active material and a secondary active material provided on at least one side thereof, the secondary active material comprising a lithiated form of a material configured to provide charging and discharging capacity for the positive electrode below a corrosion potential of the negative current collector and above a decomposition potential of the primary active material; and a polymeric separator provided intermediate the positive electrode and the negative electrode; whereby the lithium-ion battery may be discharged to near-zero-voltage conditions without degradation to the cyclable capacity of the battery.
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44. A method of treating a medical condition of a patient comprising:
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providing at least a portion of a medical device in contact with the patient; and providing power to the medical device from a battery such that the medical device provides a therapeutic treatment to the patient; wherein the battery comprises; a positive electrode comprising a positive current collector, a first active material, and a second active material; and a negative electrode comprising a negative current collector and a third active material, the third active material comprising a lithium titanate material; wherein the first active material, second active material, and third active materials are configured to allow doping and undoping of lithium ions; and wherein the second active material exhibits charging and discharging capacity below a corrosion potential of the negative current collector and above a decomposition potential of the first active material; wherein the battery has a capacity between approximately 10 mAh and 1000 mAh. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. A method of treating a medical condition of a patient comprising:
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providing at least a portion of a medical device in contact with the patient; and providing power to the medical device from a battery such that the medical device provides a therapeutic treatment to the patient; wherein the battery comprises; a positive electrode comprising a positive current collector, a first active material, and a second active material; and a negative electrode comprising a negative current collector and a third active material, the third active material comprising a lithium titanate material; wherein the first active material, second active material, and third active materials are configured to allow doping and undoping of lithium ions; and wherein the second active material exhibits charging and discharging capacity below a corrosion potential of the negative current collector and above a decomposition potential of the first active material; and wherein the first active material comprises a material selected from the group consisting of a material of the form LiCoxNi(1−
x)O2, a material of the form LiNixCoyAlzO2, and combinations thereof. - View Dependent Claims (60, 61, 62)
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Specification