Lithium sulphide battery and method of producing the same
AssigneeOxis Energy Limited
InventorsVladimir Kolosnitsyn, Elena Karaseva
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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.
Claims20
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.
A method of manufacturing a chemical source of electrical energy, the method comprising:
- 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.
Dependencies are inferred from the claim text.