Battery and a method of manufacture therefor
AssigneeDowty Electronic Components Limited
InventorsChristine R. Jarvis, Robin J. Neat
Life of this patent
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Abstract
A battery having at least one electrochemical cell, comprises a negative electrode, a positive electrode, and a solid electrolyte between and in contact with the electrodes. There is dispersed in the solid electrolyte (6) a material that is reactive with one of the electrodes. But the electrolyte in contact with that one electrode is free from this material.
Claims11
A method of manufacturing a battery having at least one electrochemical cell comprising a negative electrode, a positive electrode, and a solid electrolyte of polyethylene oxide between said electrodes, the method comprising dispersing a lithium salt in the solid electrolyte, and dispersing propylene carbonate and ethylene carbonate in the electrolyte only at a distance from the negative electrode, said propylene carbonate and ethylene carbonate being contaminated with water, the negative electrode being reactive with said water in the propylene carbonate and ethylene carbonate and being spaced from the propylene carbonate and ethylene carbonate by a portion of said solid electrolyte free from propylene carbonate and ethylene carbonate.
A battery having at least one electrochemical cell comprising a negative electrode, a positive electrode, and a solid electrolyte of polyethylene oxide between said electrodes, a lithium salt dispersed in the solid electrolyte, and propylene carbonate and ethylene carbonate dispersed in the electrolyte only at a distance from the negative electrode, said propylene carbonate and ethylene carbonate being contaminated with water, the negative electrode being reactive with said water in the propylene carbonate and ethylene carbonate and being spaced from the propylene carbonate and ethylene carbonate by a portion of said solid electrolyte free from propylene carbonate and ethylene carbonate.
Dependencies are inferred from the claim text.