POSITIVE ELECTRODE CONTAINING METAL CHLORIDE AND ALKALI METAL CHLORIDE AND ALKALI METAL-ION SECONDARY BATTERY HAVING THE SAME
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United States of America Patent
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Mar 17, 2016
app pub date -
Jun 12, 2015
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Sep 16, 2014
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The present invention relates to a positive electrode containing a metal chloride and an alkali metal chloride and an alkali metal-ion secondary battery including the same. The alkali metal-ion secondary battery according to the present invention includes a negative electrode, a positive electrode containing a metal chloride and an alkali metal chloride, and a sulfur dioxide-based inorganic electrolyte solution containing an inorganic electrolyte including sulfur dioxide (SO2) and an alkali metal salt. As the alkali metal-ion secondary battery according to the present invention uses a mixture of the metal chloride and the alkali metal chloride as a positive electrode material, and an alkali-ion electrolyte as a sulfur dioxide-based inorganic electrolyte, compared to the conventional sodium-ion secondary battery, the alkali metal-ion secondary battery can be used at room temperature and pre-charged, and have improved energy density and power density.
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