Patent ID: 11876233
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A thin film battery (TFB) layer comprising:
a substrate, having a top surface, a bottom surface, a substrate thickness, and one or more substrate edges;
a first electrode connection disposed on the top surface;
a second electrode connection disposed on the top surface, the second electrode connection not electrically connected to the first electrode connection;
a first electrode electrically connected to the first electrode connection, at least part of the first electrode disposed on the first electrode connection;
a second electrode electrically connected to the second electrode connection, at least part of the second electrode disposed on the second electrode connection;
an electrolyte, at least part of the electrolyte disposed between and electrically connected to the first and second electrodes;
a first edge connection disposed on one of the substrate edges, the first edge connection being physically and electrically connected to the first electrode connection;
a second edge connection disposed on one of the substrate edges, the second edge connection being physically and electrically connected to the second electrode connection;
a first stack external connection electrically connecting one or more of the first edge connections, the one or more of the first edge connections being electrically connected at a respective substrate edge on which the first edge connection is disposed, the first stack external connection forming a first battery pole; and
a second stack external connection, electrically connecting one or more of the second edge connections, the one or more of the second edge connections being electrically connected at a respective substrate edge on which the second edge is disposed, the second stack external connection forming a second battery pole,, wherein the first electrode and the second electrode are within the TFB, respectively,, wherein the substrate is between 0.5 microns and 5 microns in thickness, and, wherein the substrate has a root mean squared (RMS) of surface roughness between 1 nanometer (nm) and 250 nanometer (nm) per square millimeter (mm2) of surface area of the substrate.