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AssigneeNissan Motor Co., Ltd.
InventorsYuuji Tanjou, Kyoichi Watanabe, Osamu Shimamura, Takanori Itou, Hideaki Horie, Hiroshi Sugawara, Takaaki Abe
Estimating the term…
A battery includes connector members and a plurality of unit cells connected in parallel through the connector members. Each of the plurality of unit cells having a gradient in a curve of an open circuit voltage with respect to a depth of discharge such that depths of discharge of the plurality of the unit cells are balanced in level to one another.
A battery comprising:
A battery comprising:
A method of manufacturing a battery, comprising:
Dependencies are inferred from the claim text.
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No related US applications are recorded in the indexed filing history.
Backward citations are indexed for grants only.
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells: for several batteries or cells simultaneously or…
Methods for charging or discharging: for several batteries or cells simultaneously or sequentially
Of manganese: of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
Term end not estimated
The present invention relates to a battery and a related method and, more particularly, to a battery, composed of a plurality of unit cells in combination enabled to exhibit a large power output to be preferably used for a vehicle such as a hybrid automotive vehicle, and its related method.
In recent years, there has been a more and more increasing demand in the social requirement for chargeable and dischargeable secondary batteries for use as power sources to be used in various applications in wide areas covering portable mobile units and vehicles. Considerable development work has been undertaken in the past to commercially provide a nickel cadmium secondary battery, a nickel hydrogen secondary battery, and a lithium secondary battery, such as a lithium ion secondary battery and a lithium polymer secondary battery.
When using the unit cell as a power supply of an equipment that needs a slight amount of electric power, the electric power needed for driving such an equipment can be satisfied with only the unit cell. However, when using the unit cell as a power source of the vehicle, the unit cell has an inability to provide a sufficient electric power and, so, it has been a usual practice to employ a battery using a plurality of unit cells connected in series, in parallel or in combination of these connections.
FIG. 1 is a typical view illustrating a structure of a battery and a structure in which the battery is connected, in an embodiment according to the present invention;
FIG. 2 is a cross sectional view of a unit cell forming the battery shown in FIG. 1, in the embodiment;
FIG. 3 is a typical cross sectional view of a vehicle in which the battery of FIG. 1 is installed, in the embodiment;
Reference is now made to the drawings to describe an embodiment of a battery and a related method according to the present invention hereinafter.
FIG. 1 is a typical view illustrating a battery of the embodiment according to the present invention.
The battery BAT shown in FIG. 1 is comprised of four sets of groups, connected in series, each group including two unit cells 1 connected in parallel via connector members W. These batteries are mutually connected to form a battery module M. In the figure, a typical example is shown which has a structure wherein the batteries are mutually connected in series.