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AssigneeGS Yuasa International Ltd.
InventorsManabu Kanemoto, Tadashi Kakeya, Mitsuhiro Kodama
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A layered electrode group according to the present invention includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the positive active material opposite to each other. The negative electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the negative active material opposite to each other. The positive electrode plate and the negative electrode plate are layered such that at least one active material retaining portion at the positive electrode plate is sandwiched between two active material retaining portions at the negative electrode plate.
A layered electrode group comprising:
An electrode plate formed into a substantial U-shape, in which two active material retaining portions retaining an active material in a current collector are disposed opposite to each other,
An electrode plate comprising:
Dependencies are inferred from the claim text.