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 and a first active material;
a negative electrode comprising a current collector and a second active material; and
an auxiliary electrode comprising a current collector and a third active material, the auxiliary electrode adapted for repeated electrical connection to the positive and negative electrodes, but the auxiliary electrode being connected to only one of the positive electrode and the negative electrode at any one point in time and when selectively connected;
wherein the first active material, second active material, and third active material are configured to allow doping and undoping of lithium-ions; and
wherein 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.
1 Assignment
0 Petitions
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.
236 Citations
76 Claims
-
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 and a first active material; a negative electrode comprising a current collector and a second active material; and an auxiliary electrode comprising a current collector and a third active material, the auxiliary electrode adapted for repeated electrical connection to the positive and negative electrodes, but the auxiliary electrode being connected to only one of the positive electrode and the negative electrode at any one point in time and when selectively connected; wherein the first active material, second active material, and third active material are configured to allow doping and undoping of lithium-ions; and wherein 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. - 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, 29, 30, 31)
-
-
32. 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 and a first active material; a negative electrode comprising a current collector and a second active material; and an auxiliary electrode comprising a current collector and a third active material, the auxiliary electrode configured for repeated, selective electrical connections to the negative electrode when the potential of the negative electrode exceeds the potential of the auxiliary electrode by a predetermined value, the third active material providing excess capacity to the negative electrode when the auxiliary electrode is electrically connected to the negative electrode; wherein the first active material, second active material, and third active material are configured to allow doping and undoping of lithium-ions; and wherein 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. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
-
-
53. 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 and a first active material; a negative electrode comprising a current collector and a second active material; and an auxiliary electrode comprising a current collector and a third active material, the auxiliary electrode configured for repeated, selective electrical connections to the positive electrode when the potential of the positive electrode falls below the potential of the auxiliary electrode by a predetermined value, the third active material providing excess capacity to the positive electrode when the auxiliary electrode is electrically connected to the positive electrode; wherein the first active material, second active material, and third active material are configured to allow doping and undoping of lithium-ions; and wherein 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. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76)
-
Specification