Methods and devices associated with bonding of solid-state lithium batteries

A method comprising:

• providing a lithium-based battery having a first battery surface and a second battery surface opposite the first battery surface, wherein the first battery surface has first and second conductive battery contacts protruding from the first battery surface, wherein the first and second conductive battery contacts are separated by a non-conductive portion of the first battery surface, and wherein the lithium-based battery is a type that undergoes an expansion during charging in which the expansion of the lithium-based battery includes an outward bulging of the non-conductive portion of the first battery surface;
• providing a substrate having a substrate surface and first and second conductive substrate contacts protruding from the substrate surface, wherein the first and second conductive substrate contacts are separated by a non-conductive portion of the substrate surface;
• and
• coupling the lithium-based battery to the substrate, wherein the coupling comprises:
• rigidly coupling the second battery surface to the non-conductive portion of the substrate surface via a layer of a non-conductive adhesive;
• electrically connecting the first conductive battery contact to the first conductive substrate contact via a first portion of a flexible electrically-conductive adhesive, wherein the first portion allows for relative movement between the first conductive battery contact and the first conductive substrate contact caused by the expansion of the lithium-based battery;
• and
• electrically connecting the second conductive battery contact to the second conductive substrate contact via a second portion of a flexible electrically-conductive adhesive, wherein the second portion allows for relative movement between the second conductive battery contact and the second conductive substrate contact caused by the expansion of the lithium-based battery.