Medium and high discharge rate combination battery and method
First Claim
Patent Images
1. An electrochemical battery, comprising:
- a) a casing means;
b) a first electrochemical cell housed within the casing means, the first cell comprising;
i) a first anode means comprising alkali metal electrically associated with a first anode current collector;
ii) means for connecting the first anode current collector to an external lead;
iii) a first cathode means of cathode active material electrically associated with a first cathode current collector;
iv) means for connecting the first cathode current collector to an external lead; and
v) an electrolyte operatively associated with the first anode means and the first cathode means; and
c) a second electrochemical cell housed within the casing means, the second cell comprising;
i) a second anode means comprising alkali metal electrically associated with a second anode current collector;
ii) means for connecting the second anode current collector to an external lead;
iii) a second cathode means of cathode active material electrically associated with a second cathode current collector;
iv) means for connecting the second cathode current collector to an external lead; and
v) the electrolyte operatively associated with the second anode means and the second cathode means; and
wherein the first cell is dischargeable independent of the second cell to provide separate and independent sources of electrical energy.
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Abstract
A combination battery comprising a medium rate cell portion intended to be discharged under a substantially constant drain and a high rate cell portion intended to be pulse discharged, is described. Both cell portions are housed in the same casing and activated with the same electrolyte. The respective cells are capable of both independent and simultaneous discharge.
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Citations
49 Claims
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1. An electrochemical battery, comprising:
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a) a casing means; b) a first electrochemical cell housed within the casing means, the first cell comprising; i) a first anode means comprising alkali metal electrically associated with a first anode current collector; ii) means for connecting the first anode current collector to an external lead; iii) a first cathode means of cathode active material electrically associated with a first cathode current collector; iv) means for connecting the first cathode current collector to an external lead; and v) an electrolyte operatively associated with the first anode means and the first cathode means; and c) a second electrochemical cell housed within the casing means, the second cell comprising; i) a second anode means comprising alkali metal electrically associated with a second anode current collector; ii) means for connecting the second anode current collector to an external lead; iii) a second cathode means of cathode active material electrically associated with a second cathode current collector; iv) means for connecting the second cathode current collector to an external lead; and v) the electrolyte operatively associated with the second anode means and the second cathode means; and wherein the first cell is dischargeable independent of the second cell to provide separate and independent sources of electrical energy. - View Dependent Claims (2)
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3. An electrochemical battery, comprising:
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a) a casing means of electrically conductive material; b) a first electrochemical cell housed within the casing means, the first cell comprising; i) a first anode means comprising alkali metal electrically associated with a first anode current collector; ii) a first cathode means of cathode active material electrically associated with a first cathode current collector; and iii) an electrolyte solution operatively associated with the first anode means and the first cathode means; and c) a second electrochemical cell housed within the casing means, the second cell comprising; i) a second anode means comprising alkali metal electrically associated with a second anode current collector; ii) a second cathode means of cathode active material electrically associated with a second cathode current collector; and iii) the electrolyte solution operatively associated with the second anode means and the second cathode means; and wherein the first cell is dischargeable independent of the second cell to provide separate and independent sources of electrical energy. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An electrochemical battery, comprising:
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a) a casing means of electrically conductive material; b) a first electrochemical cell housed within the casing means and dischargeable under a substantially constant discharge application, the first cell comprising; i) a first anode means comprising alkali metal electrically associated with a first anode current collector; a first cathode means of cathode active material selected from the group consisting of a metal, a metal oxide, a mixed metal oxide, a metal sulfide and a carbonaceous compound, and mixtures thereof, electrically associated with a first cathode current collector; and iii) an electrolyte solution operatively associated with the first anode means and the first cathode means; and c) a second electrochemical cell housed within the casing means and dischargeable under a current pulse discharge application, the second cell comprising; i) a second anode means comprising alkali metal electrically associated with a second anode current collector; ii) a second cathode means of cathode active material selected from the group consisting of a metal, a metal oxide and a mixed metal oxide, a metal sulfide and combinations thereof, electrically associated with a second cathode current collector; and iii) the electrolyte solution operatively associated with the second anode means and the second cathode means; wherein the first cell is dischargeable independent of the second cell to provide separate and independent sources of electrical energy. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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36. In combination with an implantable medical device requiring electrical power for a monitoring function and a device operating function, a battery comprising:
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a) a medium rate constant discharge or constant drain cell for providing low level currents for the monitoring function; b) a high rate pulse discharge cell for providing high level current for the operating function; and c) a single casing means containing both cells. - View Dependent Claims (37)
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38. A method of providing an electrochemical battery capable of simultaneous and independent discharge at both a substantially constant discharge rate and under a current pulse discharge application, which comprises:
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a) providing a casing means of electrically conductive material; b) housing a first electrochemical cell within the casing means comprising the steps of; i) providing a first anode means comprising alkali metal and electrically associating the alkali metal with a first anode current collector; ii) providing a first cathode means of cathode active material and electrically associating the first cathode active material with a first cathode current collector; and iii) activating the first electrochemical cell with an electrolyte solution operatively associated with the first anode means and the first cathode means; and c) housing a second electrochemical cell within the casing means comprising the step of; i) providing a second anode means comprising alkali metal and electrically associating the alkali metal with a second anode current collector; ii) providing a second cathode means of cathode active material and electrically associating the second cathode active material with a second cathode current collector; and iii) activating the second electrochemical cell with the electrolyte solution operatively associated with the second anode means and the second cathode. means. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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Specification