The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2001
Filed:
Feb. 19, 1999
Sony Corporation, Tokyo, JP;
Abstract
A lithium-ion secondary cell is provided to remarkably improve a mechanical peel strength of heat fusion-bonding portions of a container as well as to improve a moisture permeability resistance, a sealing performance, a barrier property, a safety or the like of the container. A lead (,) for use with a lithium-ion secondary cell according to the present invention is sandwiched by heat fusion-bonding portions (,) of a container (,) so as to be exposed in the outside of the container (,) when the container (,) is sealed by heat fusion-bonding. The lead (,) is coated with a heat fusion-bonding seal material (,). This heat fusion-bonding seal material (,) has an excellent adhesion to the lead (,) rather than a material of a sealant layer (,). Also, in the lithium-ion secondary cell, an end portion (,) on the outside portion in the longitudinal direction of the lead (,) in the layer made of the heat fusion-bonding seal material (,) is exposed from the end face of the container (,). Moreover, the lithium-ion secondary cell may have the lead (,) having a mesh structure.