Square shaped battery
AssigneesMatsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
InventorsNobuyasu Morishita, Shinichi Yuasa, Akihiro Taniguchi, Munehisa Ikoma
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Abstract
A square shaped battery includes: an electrode plate group including a belt-like positive electrode plate, a belt-like negative electrode plate, and a belt-like separator, the belt-like positive electrode plate, the belt-like negative electrode plate, and the belt-like separator being laminated and rolled up to form the electrode plate group; and a pair of power collectors disposed on sides of the electrode plate group for collecting electric power from the electrode plate group.
Claims8
A square shaped battery, comprising:
- an electrode plate group including a belt-like positive electrode plate, a belt-like negative electrode plate, and a belt-like separator, the belt-like positive electrode plate, the belt-like negative electrode plate, and the belt-like separator being laminated and rolled up to form the electrode plate group;
- and
- a pair of power collectors disposed on sides of the electrode plate group for collecting electric power from the electrode plate group,
- wherein the pair of power collectors are welded sides of the electrode plate group such that the welds are perpendicular to the direction of the electrode plates.
A square shaped battery comprising:
- an electrode plate group including a belt-like positive electrode plate, a belt-like negative electrode plate, and separator, the belt-like positive electrode plate, the belt-like negative electrode plates and the belt-like separator the belt-like positive electrode plate, the belt-like negative electrode plate, and the belt-like separator being laminated and rolled up to form the electrode plate group;
- and
- a pair of power collectors disposed around the sides of the electrode plate group for collecting electric power from the electrode plate group,
- wherein each of the pair of power collectors has a “U”-shape which binds the electrode plate group so as to suppress expansion of the sides of the electrode plate group.
Dependencies are inferred from the claim text.