PTC Device and Secondary Battery Equipped with Same
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United States of America Patent
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Issued Date -
Aug 8, 2013
app pub date -
May 6, 2011
filing date -
May 6, 2010
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Abandoned
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Abstract
The present invention provides a PTC device which makes more compact a PTC device as well as an electrical device such as a battery pack comprising the PTC device and a secondary battery or a dry-cell type secondary battery. The PTC device includes a PTC component including a laminar polymer PTC element containing an electrically conductive filler, and a polymer material, and a metal electrode disposed on a surface of each side of the polymer PTC element. A lead is positioned at least in part on the metal electrode of the PTC component, and connected to the metal electrode by an electrically conductive material. An exposed part of the conductive material is covered by a protective member containing a material that is able to absorb or envelop an alkali.
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