Lithium sulphide battery and method of producing the same
First Claim
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1. A chemical source of electrical energy comprising:
- a positive electrode made of an electrically conductive material, a mixture of lithium sulphide and sulphur, a permeable separator or membrane, a negative electrode comprising a material selected from the group consisting of an electrically conductive material and a material that is able reversibly to intercalate lithium ions, and an aprotic electrolyte comprising at least one lithium salt in at least one solvent disposed between the electrodes.
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Abstract
A chemical source of electrical energy may include a positive electrode (cathode) made of an electrically conductive material, a mixture of lithium sulphide and sulphur, a permeable separator or membrane, and a negative electrode (anode) made of an electrically conductive material or a material that is able reversibly to intercalate lithium ions, wherein an aprotic electrolyte comprising at least one lithium salt in at least one solvent is provided between the electrodes.
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Citations
20 Claims
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1. A chemical source of electrical energy comprising:
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a positive electrode made of an electrically conductive material, a mixture of lithium sulphide and sulphur, a permeable separator or membrane, a negative electrode comprising a material selected from the group consisting of an electrically conductive material and a material that is able reversibly to intercalate lithium ions, and an aprotic electrolyte comprising at least one lithium salt in at least one solvent disposed between the electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of manufacturing a chemical source of electrical energy, the method comprising:
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providing a cathode;
providing a mixture of lithium sulphide and sulphur in an aprotic electrolyte comprising at least one lithium salt in at least one solvent;
applying a coating of the mixture to the cathode;
applying a permeable separator or membrane over the coated cathode;
applying a coating of an aprotic electrolyte comprising at least one lithium salt in at least one solvent over the permeable separator or membrane;
providing an anode on the coating of aprotic electrolyte, the anode being made of an electrically conductive material or a material that is able reversibly to intercalate lithium ions; and
providing terminal connections for the anode and cathode and hermetically sealing the structure obtained. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification