Patent ID: 8709624
Filing Date: 2014-04-29
Classification: H01G,H01M,Y02E

Abstract:
1. An energy storage device package comprising: a bottom cover; a top cover connected to the bottom cover to form a hollow chamber to accumulate an electrolyte; a first electrode formed on the top cover and which stretches from the top cover to the hollow chamber to contact the electrolyte, the first electrode comprises an opening and an exhaust channel that extends between the hollow chamber and the opening; a second electrode formed on the top cover and which stretches from the top cover to the hollow chamber to contact the electrolyte; and a safety valve formed in the first electrode, wherein the safety valve comprises: wherein when a gas pressure in the hollow chamber is smaller than or equal to a threshold value, the elastic body is disposed between the cover plate and the exhaust channel to cover the exhaust channel such that the safety valve in the first electrode blocks the exhaust channel; and when the gas pressure increases such that the gas pressure is larger than the threshold value, gas in the hollow chamber pushes to open the safety valve, thereby allowing part of the gas to flow out from the hollow chamber through the exhaust channel and the opening.