Electrode for secondary battery
AssigneeVehicle Energy Japan Inc.
InventorMotonari Kifune
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Abstract
The present disclosure provides an electrode for a secondary battery capable of measuring the width of a first mixture layer and the width of a second mixture layer when the first mixture layer and the second mixture layer are stacked and formed on the surface of a metal foil. A positive electrode body (electrode for a secondary battery) includes a strip-like positive electrode foil and a positive electrode mixture layer provided on the positive electrode foil. The positive electrode mixture layer includes a first positive electrode mixture layer provided on the positive electrode foil and a second positive electrode mixture layer provided on the first positive electrode mixture layer. The first positive electrode mixture layer has a width greater than a width of the second positive electrode mixture layer.
Claims3
An electrode for a secondary battery comprising:
- a strip-like metal foil;
- and
- a mixture layer provided on the strip-like metal foil,
- wherein:
- the mixture layer includes a first mixture layer provided on the strip-like metal foil and a second mixture layer provided on the first mixture layer,
- the first mixture layer has a width greater than a width of the second mixture layer,
- the first mixture layer and the second mixture layer contain carbon particles,
- a content of the carbon particles of the first mixture layer is higher than a content of the carbon particles of the second mixture layer, and
- the first mixture layer has a smaller L* value in a L*a*b* color system by 4 or larger as compared to the second mixture layer.
Dependencies are inferred from the claim text.