Non-aqueous electrochemical cells
First Claim
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1. A primary electrochemical cell, comprising:
- a cathode comprising a cathode active material consisting of manganese oxide and/or iron disulfide, the cathode having less than about 2,000 ppm of water;
a cathode current collector comprising aluminum;
an anode comprising lithium; and
an electrolyte comprising lithium trifluoromethanesulfonate LiPF6, and a third lithium salt, the electrolyte not including a perchlorate salt.
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Abstract
Electrochemical cells are disclosed. In some embodiments, an electrochemical cell includes a cathode having less than about 2,000 ppm of water, an anode, and an electrolyte having a first lithium salt and LiPF6.
78 Citations
32 Claims
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1. A primary electrochemical cell, comprising:
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a cathode comprising a cathode active material consisting of manganese oxide and/or iron disulfide, the cathode having less than about 2,000 ppm of water; a cathode current collector comprising aluminum; an anode comprising lithium; and an electrolyte comprising lithium trifluoromethanesulfonate LiPF6, and a third lithium salt, the electrolyte not including a perchlorate salt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method, comprising:
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discharging, only once, a primary electrochemical cell comprising a cathode comprising manganese oxide and/or iron disulfide, the cathode having less than about 2,000 ppm of water, a cathode current collector comprising aluminum, an anode comprising lithium, and an electrolyte comprising lithium trifluoromethanesulfonate LiPF6, and a third lithium salt, the electrolyte not including a perchlorate salt; and disposing the cell without recharging the cell. - View Dependent Claims (17, 18, 19, 20)
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21. A method of making a primary electrochemical cell, comprising
(a) providing a cathode including a current collector comprising aluminum and a cathode active material consisting of manganese dioxide and/or iron disulfide, the cathode having less than 2,000 ppm of water; -
(b) providing an anode comprising lithium; (c) placing the cathode and the anode into a casing; and (d) adding an electrolyte comprising lithium trifluoromethanesulfonate, LiPF6, and a third lithium salt, but not a perchlorate salt to the casing. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification