Battery protector having a positive temperature coefficient element
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United States of America Patent
Stats
-
Jan 23, 2001
Grant Date -
N/A
app pub date -
Jul 30, 1998
filing date -
Jul 31, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A small protector is provided for a high energy density battery such as a lithium ion battery. A flat sheet form of leading portion extending from a positive temperature coefficient element is provided thereon with at least one battery protecting circuit element for detecting at least one abnormality selected from overcharging, over-discharging, overcurrent, and unusual temperature to cut off a current passing therethrough. A fail-safe mechanism is achieved for the actuation of the positive temperature coefficient element and the actuation of the battery protecting circuit element.
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