초록 ▼

A secondary electrochemical cell with sodium-sulfur or other molten reactants is provided with a ionically conductive glass electrolyte. The cell is contained within an electrically conductive housing with a first portion at negative potential and a second portion insulated therefrom at positive ele

A secondary electrochemical cell with sodium-sulfur or other molten reactants is provided with a ionically conductive glass electrolyte. The cell is contained within an electrically conductive housing with a first portion at negative potential and a second portion insulated therefrom at positive electrode potential. The glass electrolyte is formed into a plurality of elongated tubes and placed lengthwise within the housing. The positive electrode material, for instance sulfur, is sealed into the glass electrolyte tubes and is provided with an elongated axial current collector. The glass electrolyte tubes are protected by shield tubes or sheets that also define narrow annuli for wicking of the molten negative electrode material.

대표청구항 ▼

A secondary electrochemical cell with chalcogen containing positive electrode material and alkali metal containing negative electrode material comprising an electrically conductive housing having a first portion thereof at negative electrode polarity, a second portion thereof at positive electrode p

A secondary electrochemical cell with chalcogen containing positive electrode material and alkali metal containing negative electrode material comprising an electrically conductive housing having a first portion thereof at negative electrode polarity, a second portion thereof at positive electrode polarity and an electrically insulative seal between the first and second portions; a plurality of elongated tubes of ionically conductive glass electrolyte affixed lengthwise along substantially parallel axes within the first portion of said housing, the tubes containing the positive electrode material; a pluality of elongated electrical conductors, each axially disposed in one of the plurality of glass electrolyte tubes, said conductors extending lengthwise beyond the glass electrolyte tubes into common electrical contact with the second portion of said housing; a plurality of curved protective shields placed lengthwise in the first portion of said housing at least partially encompassing individual glass electrolyte tubes to form columnar annuli for containing the negative electrode material, said shields placed sufficiently close to the outer surfaces of the glass electrolyte tubes to permit molten negative electrode material to wick therebetween, and each of said shields contacting adjacent shields at lengthwise surface portions to define columnar regions of molten negative electrode material, electrical terminal means coupled to said first and second housing portions for charging and withdrawing the electrical energy of said cell.