IP Library Granted Patent US 10,355,319
Granted Patent B1
US 10,355,319 · App. 15/228,696 · Granted Jul 16, 2019

Methods and systems for improved battery performance

Inventors: James Robert Lim (San Jose, CA); David Wang (Santa Clara, CA); Yuting Yeh (Sunnyvale, CA); John Wang (Sunnyvale, CA)
Assignee: Amazon Technologies, Inc.
H01M10/4257H01M2/0207H01M2/345H01M10/0525H01M10/48H01M2010/4271H01M2010/4278H01M2200/20H01M2220/30
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Quick Facts
Patent No.
US 10,355,319
App. No.
15/228,696
Granted
Jul 16, 2019
Kind
B1
Abstract

Systems, methods, and computer-readable media are disclosed for improved battery performance. The systems, methods, and computer-readable media described herein may improve user experiences and prolong the battery's life. In an example method described herein, a battery may be placed within a clamp or housing that applies configurable pressure to the battery. In turn, the applied pressure may counter the swelling pressure of the battery and improve the battery's power output, reduce the internal resistance or impedance, and improve the life cycle of the battery.

Claims (31)

1. A system comprising:

a battery having an elastic shell; and

a pressure applying device having a first pressure applying portion having a plurality of protruding elements defining one or more areas for placing the battery and a second pressure applying portion, wherein the battery is disposed between the first pressure applying portion and the second pressure applying portion of the pressure applying device, and wherein the first pressure applying portion and the second pressure applying portion of the pressure applying device apply a first pressure onto the battery.

2. The system of claim 1 , wherein the pressure applying device further comprises a control dial that, when interacted with causes, the first pressure applied onto the battery to change from a first pressure to a second pressure.

3. The system of claim 2 , wherein interaction with the element causes the first pressure to be between 1 and 15 psi.

4. The system of claim 1 , wherein the pressure is applied onto the battery in a direction parallel to an axis defined by a shortest edge of the battery.

5. The system of claim 1 , further comprising:

management circuitry that monitors the battery; and

a sensor interposed between the first pressure applying portion of the pressure applying device and the battery, wherein the management circuitry determines a swelling pressure of the battery based on, at least in part, the first pressure and pressure data received from the sensor.

6. The system of claim 5 , wherein the management circuitry disables the battery based, at least in part, on the swelling pressure exceeding a threshold.

7. The system of claim 5 , wherein the battery comprises one or more solid electrolyte elements.

8. The system of claim 1 , wherein the first pressure applying portion is a tray and the second pressure applying portion is a cover, and wherein the cover detachably couples to the tray such that the cover and the tray apply the first pressure onto the battery.

9. The system of claim 8 , wherein the pressure applying device further comprises one or more proximity sensors located adjacent to the protruding elements, and wherein the proximity sensors measure a distance between a closest edge of the battery and to a protruding element from the protruding elements.

10. The system of claim 8 , wherein the pressure applying device includes a rotatable mechanism that moves the cover relative to the tray to adjust the first pressure, wherein adjusting the first pressure applies a second pressure onto the battery.

11. The system of claim 5 , wherein the system:

determines a first swelling pressure at a first time;

applies the first pressure to the battery at the first time;

determines a second swelling pressure at a second time, the second swelling pressure being different than the first swelling pressure, the second time being subsequent to the first time; and

applies the second pressure to the battery at the second time.

12. The system of claim 5 , wherein the management circuitry measures an internal impedance of the battery, and wherein the first pressure is determined based at least in part on, the internal impedance.

13. A method comprising:

receiving a pressure measurement from a sensor interposed between a battery having an elastic shell and a first pressure applying portion of a pressure applying device, the first pressure applying portion having a plurality of elements defining one or more areas for placing the battery, wherein the battery is disposed between the first pressure applying portion and a second pressure applying portion of the pressure applying device;

determining a pressure to apply to the battery based, at least in part, on the pressure measurement; and

providing instructions to the pressure applying device to apply the pressure onto the battery.

14. The method of claim 13 , further comprising causing the pressure applied onto the battery to change from a first pressure to a second pressure.

15. The method of claim 14 , wherein the second pressure is approximately 15 psi.

16. The method of claim 13 , wherein the pressure is applied onto the battery in a direction parallel to an axis defined by a shortest edge of the battery.

17. The method of claim 13 , further comprising determining, by management circuity, a swelling pressure of the battery based, at least in part, on the first pressure and pressure data received from the sensor.

18. The method of claim 17 , further comprising disabling, by the management circuitry, the battery based, at least in part, on the pressure data indicating a pressure value that exceeds a threshold.

19. The method of claim 13 , wherein the battery comprises one or more solid electrolyte elements.

20. The method of claim 13 , wherein the first pressure applying portion is a tray and the second pressure applying portion is a cover, and wherein the cover detachably couples to the tray such that the cover and the tray apply the first pressure onto the battery.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 4, 2016
From: LIM, JAMES ROBERT; WANG, DAVID; YEH, YUTING; WANG, JOHN
To: AMAZON TECHNOLOGIES, INC.
Reel/Frame 039346/0949 →
Cited By (3)
US 12,355,075 US 12,567,601 US 12,646,760