Busbar and busbar manufacturing method
AssigneeKobe Steel, Ltd.
InventorsAkira Sakae, Kotaro Toyotake
Life of this patent
Estimating the term…
Abstract
A bus bar, which is used with batteries wherein the positive terminal and the negative terminal are each formed from a different metal, and which has excellent mechanical strength and can suppress electrical resistance while preventing galvanic corrosion. The bus bar is bonded in one piece by metallically bonding: a cathode connector that is formed from the same metal as the positive terminal of a battery cell, and that can connect to the positive terminal; and an anode connector that is formed from the same metal as the negative terminal of the battery cell, and that can connect to the negative terminal.
Claims10
A busbar for use with a battery including a positive terminal and a negative terminal formed of different metals, the busbar being used to connect the terminals, the busbar comprising:
- a cathode connector made of the same metal as the positive terminal of the battery and connectable to the positive terminal;
- and
- an anode connector made of the same metal as the negative terminal of the battery and connectable to the negative terminal,
- wherein the cathode connector and the anode connector are integrated together by metallic bonding wherein the cathode connector and the anode connector are bonded at the metal structural level by compressive pressure.
A busbar manufacturing method for manufacturing a busbar of a battery including a positive terminal and a negative terminal formed of different metals, the method comprising:
- providing a metal base material for a cathode connector and a metal base material for an anode connector in surface contact with each other, wherein the cathode connector is made of the same metal as the positive terminal of the battery and the anode connector is made of the same metal as the negative terminal of the battery;
- and
- subjecting the metal base material for the cathode connector and the metal base material for the anode connector, while in surface contact with each other, to hydrostatic pressure and compression sufficient to plastically deform the metal base material for the cathode connector and the metal base material for the anode connector and to integrate the metal base material for the cathode connector and the metal base material for the anode connector to each other by metallic bonding.
A busbar for use with a battery including a positive terminal and a negative terminal formed of different metals, the busbar being used to connect the terminals, the busbar comprising:
- a cathode connector made of the same metal as the positive terminal of the battery and connectable to the positive terminal;
- and
- an anode connector made of the same metal as the negative terminal of the battery and connectable to the negative terminal,
- wherein the cathode connector is surrounded by the anode connector or the anode connector is surrounded by the cathode connector in plan view, and wherein the cathode connector and the anode connector are integrally bonded together by metallic bonding wherein the cathode connector and the anode connector are bonded at the metal structural level by compressive pressure.
Dependencies are inferred from the claim text.