Negative electrode for lithium ion secondary battery and lithium ion secondary battery including the same
A negative electrode for a lithium ion secondary battery of the present invention includes a sheet-like current collector and an active material layer carried on the current collector. The current collector includes a substrate and a surface portion that undergoes plastic deformation more easily tha...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A negative electrode for a lithium ion secondary battery of the present invention includes a sheet-like current collector and an active material layer carried on the current collector. The current collector includes a substrate and a surface portion that undergoes plastic deformation more easily than the substrate. The surface portion has protrusions and recesses. The active material layer includes a plurality of columnar particles containing silicon. The columnar particles are carried on the surface portion. |
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