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AssigneeNissan Motor Co., Ltd.
InventorsOsamu Shimamura, Hideaki Horie, Kyoichi Watanabe, Takaaki Abe, Takanori Itou, Hiroshi Sugawara, Yuuji Tanjou
Estimating the term…
A battery includes a plurality of flat type batteries and a connector member that electrically connect the plurality of flat type batteries to one another. Each of the plurality of flat type batteries is provided with an outer sheath having a composite laminate film, an electric power generating component, which includes a positive electrode plate, a separator and a negative electrode plate and is accommodated in the outer sheath by compelling at least a part of a circumference of the outer sheath to be joined by thermally welded portions, a positive-electrode terminal lead conductive with the positive electrode plate and held between the thermally welded portions, and a negative-electrode terminal lead conductive with the negative electrode plate and held between the thermally welded portions. At least one of the positive-electrode terminal lead and the negative-electrode terminal lead has a surface covering layer made of a metal different from that of its terminal mother material.
A battery comprising:
A method of manufacturing a battery, comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Terminals adapted for prismatic, pouch or rectangular cells: plate-shaped terminals
Adapted for the shape of the cells: for pouch or flexible bag cells
Characterised by the disposition of the terminals on the cells: on opposite sides of the cell
Characterised by the disposition of the terminals on the cells: on the same side of the cell
Term end not estimated
The present invention relates to a battery and a related method and, more particularly, to a battery and a related method using a flat type battery with a structure wherein an outer sheath material is formed of a composite laminate film made of polymer-metal to allow circumferences thereof to be joined to one another by thermal welding for thereby accommodating and sealing an electric power generating component composed of a positive electrode plate, a separator and a negative electrode plate
Recently, electric vehicles powered by electric power outputs of drive sources and hybrid cars powered by engines and motors in combination attract public attention, and a development work has taken up an important weight in an industrial field to provide a battery with a high energy density and high power output for these applications.
The batteries for these applications include a structure wherein a wound electric power generating component is accommodated in a cylindrical case and a structure wherein the wound electric power generating component or an electric power generating component composed of a stack of flat-plate shaped electrodes and separators is accommodated in a flat case.
FIG. 1 is a schematic perspective view of a flat type battery of an embodiment according to the present invention;
FIG. 2 is a schematic perspective view of a flat type battery of another example of the embodiment according to the present invention;
FIG. 3 is a schematic perspective view of a flat type battery of another example of the embodiment according to the present invention;
Before entering into concrete descriptions of Examples and Comparative Example, a battery of an embodiment according to the present invention and its related method are described suitably with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, a unit cell 1 for use in the presently filed embodiment includes a flat type battery which is comprised of two sheets of outer sheaths 3 each made of a polymer-metal composite laminate film with an entire circumference being joined to one another to form a thermally welded portion 2 by thermal welding. Here, with the flat type battery 1 shown in FIG. 1, both of a positive-electrode terminal lead 8 and a negative-electrode terminal lead 9 are taken out at the same one end of the thermally welded portion 2. Of course, the present invention is not limited to such a specific structure and, as shown in the flat type battery 1 shown in FIG. 2, the positive-electrode terminal lead 8 and the negative-electrode terminal lead 9 may be taken out at one and the other end of the thermally welded portion 2.
As shown in FIG. 3, further, the unit cell 1 for use in the presently filed embodiment may be comprised of a flat type battery wherein one sheet of an outer sheath 3, made of the polymer-metal composite laminate film, is prepared and folded back to form a bursiform shape whose circumference has opening portions that are joined to form bladder welded portions 2 by thermal welding. Here, both of the positive-electrode terminal lead 8 and the negative-electrode terminal lead 9 are taken out at the same one terminal end of the thermally welded portions 2.