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AssigneeSharp Kabushiki Kaisha
InventorsShumpei NISHINAKA, Naoto NISHIMURA, Takahiro MATSUYAMA, Isao ASAKO, Motoaki NISHIJIMA, Satoshi ARIMA, Hisayuki UTSUMI
Estimating the term…
In a secondary battery including a large-sized electrode group including stacked positive and negative electrode plates, an electrode plate in which failures such as the separation and cracking of an active material layer and the abrasion and cracking of a current collector are unlikely to occur is provided. An electrode plate 21 includes a coated region CR where active material layers 21a are formed and an uncoated region NC where no active material layer is formed and has a configuration in which a boundary section between the coated region and the uncoated region is provided with a first buffer region C2 having a non-linear irregular shape in plan view.
An electrode plate comprising
A battery comprising
A manufacturing method of an electrode plate, comprising
Dependencies are inferred from the claim text.