Lead for use with lithium-ion secondary cell, lead ribbon, lithium-ion secondary cell and method of sealing container of lithium-ion secondary cell
US6277516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1999 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Feb 19, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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 (3) for use with a lithium-ion secondary cell according to the present invention is sandwiched by heat fusion-bonding portions (2) of a container (5) so as to be exposed in the outside of the container (5) when the container (5) is sealed by heat fusion-bonding. The lead (3) is coated with a heat fusion-bonding seal material (1). This heat fusion-bonding seal material (1) has an excellent adhesion to the lead (3) rather than a material of a sealant layer (19). Also, in the lithium-ion secondary cell, an end portion (1a) on the outside portion in the longitudinal direction of the lead (3) in the layer made of the heat fusion-bonding seal material (1) is exposed from the end face of the container (5). Moreover, the lithium-ion secondary cell may have the lead (3) having a mesh structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.