Ampoule-type reserve battery
Provided is an ampoule-type reserve battery including: an ampoule casing having an accommodation part formed therein; an electrolyte accommodated in a lower portion of the accommodation part; a leakage prevention liquid made of oil, which is phase-separated from the electrolyte without being mixed therewith so as to prevent the electrolyte from leaking through an upper portion of the accommodation part, and accommodated in the upper portion of the accommodation part; and a separation membrane mounted in the accommodation part and configured to separate the electrolyte from the leakage prevention liquid.
1. An ampoule-type reserve battery comprising:
an ampoule casing having an accommodation part formed therein;
an electrolyte accommodated in a lower portion of the accommodation part;
a leakage prevention liquid made of oil, which is phase-separated from the electrolyte without being mixed therewith so as to prevent the electrolyte from leaking through an upper portion of the accommodation part, and accommodated in the upper portion of the accommodation part;
a separation membrane mounted in the accommodation part and configured to separate the electrolyte from the leakage prevention liquid;
an electrode including a substrate, a cathode and an anode, which are disposed on an upper end of the substrate;
a percussion pin mounted on the substrate to be exposed at an upper end of the electrode and configured to strike and destroy the ampoule casing accommodating the electrolyte, thereby allowing the electrolyte to be discharged to the substrate when the ampoule casing falls; and
an absorption pail disposed on the upper end of the electrode and configured to absorb the electrolyte so as to transfer the electrolyte to the electrode when the electrolyte is discharged.
2. The ampoule-type reserve battery of claim 1 , wherein the ampoule casing includes:
a first case in which the accommodation part is formed and which has an open upper portion;
a stopper mounted in the open upper portion of the first case so as to prevent the leakage prevention liquid from leaking through the open upper portion of the first case; and
a second case having an upper end to which a fixing part is coupled and a lower portion which is open and in which the first case is inserted to be coupled to the lower portion.
3. The ampoule-type reserve battery of claim 2 , further comprising:
a housing, wherein the fixing part is configured to fix the ampoule casing to an upper side of an interior of the housing so as to allow the ampoule casing to fall in the housing when an impact is applied to the housing,
wherein the electrode is mounted at a lower side of the interior of the housing by being spaced a predetermined interval from the ampoule casing.
4. The ampoule-type reserve battery of claim 3 , wherein a groove is formed at one end of a percussion pin in a length direction so as to allow the electrolyte accommodated in the ampoule casing to flow to the absorption part when the percussion pin strikes and destroys the ampoule casing.