Electrical apparatus with integral thin film solid state battery and methods of manufacture

This invention describes a battery that is very thin and uses solid materials instead of liquid, allowing it to bend and fit onto devices with unusual, curved shapes. The battery components are built directly onto the device's surface. The claims specifically detail a layered construction starting with a substrate, then an electrically conductive layer, and then either a cathode or an anode layer built on top.

Why it matters: Solid-state battery technology has matured significantly since 2008, with improved materials and manufacturing processes addressing previous limitations. Advances in additive manufacturing and micro-fabrication techniques may now offer more practical methods for forming battery components directly onto complex 3D surfaces.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedThin-film deposition, specialized materials, complex 3D substrate

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