Thermal battery
A thermal battery of the present invention includes a unit cell including a positive electrode, a negative electrode, and an electrolyte. The electrolyte includes a salt molten at an operating temperature of the thermal battery. The salt includes an inorganic cation and an inorganic anion, and the inorganic anion includes at least an iodine anion.
1 . A thermal battery including a unit cell comprising:
a positive electrode;
a negative electrode; and
an electrolyte disposed between said positive electrode and said negative electrode, said electrolyte comprising a salt molten at an operating temperature of said thermal battery, said salt comprising an inorganic cation and an inorganic anion,
wherein said inorganic anion includes at least an iodine anion.
2 . The thermal battery in accordance with claim 1 , wherein said inorganic cation is at least one selected from the group consisting of a lithium cation, a sodium cation, a potassium cation, a rubidium cation, and a cesium cation.
3 . The thermal battery in accordance with claim 1 , wherein said inorganic anion is said iodine anion, and at least one selected from the group consisting of a fluorine anion, a chlorine anion, a bromine anion, a nitric acid anion, and a carbonic acid anion.
4 . The thermal battery in accordance with claim 1 , wherein said salt comprises at least a first salt including said iodine anion, and a second salt including at least one inorganic anion selected from the group consisting of said iodine anion, a fluorine anion, a chlorine anion, a bromine anion, a nitric acid anion, and a carbonic acid anion.
5 . The thermal battery in accordance with claim 4 , wherein said first salt is at least one selected from the group consisting of LiI, NaI, KI, RbI, and CsI.
6 . The thermal battery in accordance with claim 1 , wherein at least one of said negative electrode and said positive electrode includes a salt including an iodine anion.