SAFETY DEVICE OF LITHIUM-ION BATTERY
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United States of America Patent
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Issued Date -
Apr 16, 2015
app pub date -
Oct 16, 2013
filing date -
Oct 16, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
This invention belongs to the lithium-ion battery field, and in particular, to a safety device of a lithium-ion battery. The safety device of a lithium-ion battery comprises a top cover plate, a first electrode post, a second electrode post, an explosion-proof valve, and a conductive plate, wherein the first electrode post, the second electrode post, and the explosion-proof valve are respectively positioned on the top cover plate; the first electrode post is electrically connected to the top cover plate; the second electrode post is assembled in an insulated way to the top cover plate; and the second electrode post is electrically connected to the conductive plate; where an air-pressured flip plate is further positioned on the top cover plate, and a cut is positioned on the air-pressured flip plate. The device may be used to avoid a safety problem caused by overcharging when an accident occurs on a cell, and release energy of the faulty cell through an outer short-circuit, thereby avoiding a more serious safety accident and ensuring safety performance of the battery.
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