Releasable battery package
View Patent ↗A device can include a processor; memory accessible by the processor; a battery bay that includes a first surface; a battery package disposed in the battery bay and operatively coupled to the processor, where the battery package includes a second surface; and materials disposed between the first surface and the second surface, where the materials include an adhesive and a thermoplastic.
1. A device comprising:
a processor;
memory accessible by the processor;
a battery bay that comprises a first surface;
a battery package disposed in the battery bay and operatively coupled to the processor, wherein the battery package comprises a second surface; and
materials disposed between the first surface and the second surface, wherein the materials comprise a first pressure sensitive adhesive, thermoplastic and a second pressure sensitive adhesive, wherein the first pressure sensitive adhesive binds the first surface and the thermoplastic, and wherein the second pressure sensitive adhesive binds the thermoplastic and the second surface.
2. The device of claim 1 wherein the thermoplastic comprises a glass-transition temperature greater than approximately 40 degrees C. and less than approximately 120 degrees C.
3. The device of claim 1 wherein the materials comprise a plasticizer that lowers the glass-transition temperature of the thermoplastic.
4. The device of claim 1 wherein the first pressure sensitive adhesive, the thermoplastic and the second pressure sensitive adhesive form a double sided tape (DST).
5. The device of claim 1 wherein the first pressure sensitive adhesive is a double sided tape (DST).
6. The device of claim 1 wherein the second pressure sensitive adhesive is a double sided tape (DST).
7. The device of claim 1 wherein the thermoplastic is deposited as a continuous layer.
8. The device of claim 1 wherein the thermoplastic is deposited in a pattern that comprises shaped features and wherein, responsive to application of heat energy that increases temperature of the thermoplastic beyond its glass-transition temperature, the shaped features spread and decrease thickness to reduce tensile force required to separate the battery package from the first surface.
9. The device of claim 1 wherein the battery package comprises a perimeter and wherein a material is disposed about the perimeter.
10. The device of claim 9 wherein the material disposed about the perimeter comprises a wax, wherein at least one of the first pressure sensitive adhesive and the second pressure sensitive adhesive comprises a volatile component and wherein the wax hinders transport of the volatile component at the perimeter to reduce loss of the volatile component from the adhesive.
11. The device of claim 1 wherein the battery package comprises at least one lithium-ion cell.
12. The device of claim 1 wherein the battery package comprises a flexible pouch.
13. The device of claim 12 wherein the flexible pouch is a flexible aluminum foil laminate pouch.
14. The device of claim 1 comprising a display operatively coupled to the processor.
15. The device of claim 1 comprising a smart phone.
16. The device of claim 1 comprising a tablet computing device.
17. The device of claim 1 comprising a laptop computing device.
18. The device of claim 1 wherein the battery package comprises a maximum thickness less than approximately 10 mm.
19. The device of claim 1 wherein the battery package comprises a maximum thickness less than approximately 5 mm.