Method of preventing over-discharge of battery
First Claim
1. A method of preventing over-discharge of a lithium-ion battery, comprising:
- providing a positive electrode comprising a current collector and a first active material;
providing a negative electrode comprising a current collector and a second active material; and
providing an auxiliary electrode comprising a current collector and a third active material, wherein the auxiliary electrode is configured for repeated selective electrical connection to the negative electrode when a predetermined condition is met;
the first active material, the second active material, and the third active material being configured to allow doping and undoping of lithium ions, andthe third active material exhibiting 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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Accused Products
Abstract
A medical device includes a rechargeable lithium-ion battery for providing power to the medical device. The lithium-ion battery includes a positive electrode including a current collector and a first active material, a negative electrode including a current collector and a second active material, and an auxiliary electrode including a current collector and a third active material. The auxiliary electrode is configured for selective electrical connection to one of the positive electrode and the negative electrode. The first active material, second active material, and third active material are configured to allow doping and undoping of lithium ions. The third 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
20 Claims
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1. A method of preventing over-discharge of a lithium-ion battery, comprising:
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providing a positive electrode comprising a current collector and a first active material; providing a negative electrode comprising a current collector and a second active material; and providing an auxiliary electrode comprising a current collector and a third active material, wherein the auxiliary electrode is configured for repeated selective electrical connection to the negative electrode when a predetermined condition is met; the first active material, the second active material, and the third active material being configured to allow doping and undoping of lithium ions, and the third active material exhibiting 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of preventing over-discharge of a lithium-ion battery, comprising:
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providing a positive electrode comprising a current collector and a first active material; providing a negative electrode comprising a current collector and a second active material; and providing an auxiliary electrode comprising a current collector and a third active material, wherein the auxiliary electrode is configured for repeated selective electrical connection to the positive electrode when a predetermined condition is met; the first active material, the second active material, and the third active material being configured to allow doping and undoping of lithium ions, and the third active material exhibiting 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. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of preventing over-discharge of a lithium-ion battery, comprising:
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providing a positive electrode comprising a current collector and a first active material; providing a negative electrode comprising a current collector and a second active material; and providing an auxiliary electrode comprising a current collector and a third active material, wherein the auxiliary electrode is configured for repeated selective electrical connection to at least one of the negative electrode and the positive electrode when a predetermined condition is met; the first active material, the second active material, and the third active material being configured to allow doping and undoping of lithium ions, and the third active material exhibiting 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. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification