PTC Device and Secondary Battery Having the Same
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United States of America Patent
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Issued Date -
Aug 1, 2013
app pub date -
Jul 1, 2011
filing date -
Jul 2, 2010
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Abandoned
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Abstract
A PTC device as well as an electrical device such as a battery pack or a dry-cell type secondary cell containing a PTC device and a secondary cell is made more compact. The PTC device includes (1) a PTC component including a laminar polymer PTC element having an electrically conductive filler and a polymer material, and a metal electrode disposed on a surface of each side of the polymer PTC element; and (2) a lead 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 electrically conductive material is covered by a protective member including a polypropylene resin, a nylon resin or an epoxy resin.
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