NATRIUM SECONDARY BATTERY

PURPOSE: A sodium secondary battery can be operated at a low temperature of 100-200 °C, has high energy density even at the low temperature, and reduces the danger of battery fracture due to the increase of an internal pressure. CONSTITUTION: A sodium secondary battery includes a positive electrode...

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Bibliographic Details
Main Authors KIM, JEONG SOO, CHAE, JE HYUN, KIM, YOUNG SHOL, KOH, WON SANG
Format Patent
LanguageEnglish
Korean
Published 23.08.2013
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:PURPOSE: A sodium secondary battery can be operated at a low temperature of 100-200 °C, has high energy density even at the low temperature, and reduces the danger of battery fracture due to the increase of an internal pressure. CONSTITUTION: A sodium secondary battery includes a positive electrode which includes a negative electrode nickel including sodium; a positive electrolyte which is in contact with the positive electrode and contains a sodium salt represented by chemical formula 1; and a solid electrolyte which separates the negative electrode from the positive electrolyte and has sodium ion conductivity. In the chemical formula 1, R is hydrogen or a linear or branched C1-7 alkyl group. In the secondary battery, a net reaction according to reaction formula 1 is conducted. The sodium salt includes sodium acetate, sodium formate, or a mixture thereof.
Bibliography:Application Number: KR20120015208