Lithium secondary battery and anode therefor
AssigneeNitto Denko Corporation
InventorsYoshihiro Uetani, Yuki Kajisa, Yasushi Tamura
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Abstract
The present invention provides an anode of a lithium secondary battery comprising a current collector layer and an active material layer laminated on the current collector layer, wherein the current collector layer has a laminar structure without an opening, the active material layer has a network structure with an opening, and the shape of the opening in a planar view is a substantially regular polygon of pentagon or above and/or a substantial circle. The anode of the present invention can achieve charge-discharge-cycle property superior to that of the prior art.
Claims5
An anode of a lithium secondary battery comprising a current collector layer and an active material layer laminated on the current collector layer, wherein
- the current collector layer has a laminar structure without an opening,
- the active material layer has a network structure with an opening, and
- the shape of the opening in a planar view is a substantially regular polygon of pentagon or above and/or a substantial circle.
A sheet for an anode of a lithium secondary battery comprising a current collector layer and an active material layer laminated on the current collector layer, wherein
- the current collector layer has a laminar structure without an opening,
- the active material layer has a network structure with an opening, and
- the shape of the opening in a planar view is a substantially regular polygon of pentagon or above and/or a substantial circle.
Dependencies are inferred from the claim text.