Dynamically changing internal state of a battery

Patent metadata

Field	Value
Publication number	US-10158148-B2
Application number	US-201514624808-A
Country	US
Kind code	B2
Filing date	Feb 18, 2015
Priority date	Feb 18, 2015
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

Techniques for dynamically changing internal state of a battery are described herein. Generally, different battery configurations are described that enable transitions between different battery power states, such as to accommodate different battery charge and/or discharge scenarios.

First claim

What is claimed is:

1. A dynamic battery comprising:
a positive electrode, a negative electrode, and a separator separating the positive electrode from the negative electrode, at least one of the positive electrode or the negative electrode including a primary electrode material and a dynamic electrode material different from the primary electrode material, the dynamic electrode material being activatable to change a power state of the dynamic battery,
the dynamic battery configured to operate in a standard operating mode during which the dynamic battery supplies power to an external circuit and ion exchange for the dynamic battery occurs primarily across the primary electrode material relative to the dynamic electrode material, and configured to operate in an activated operating mode in response to an external stimulus being applied to activate the dynamic electrode material while the dynamic battery supplies power to the external circuit, the activated operating mode causing an increase in discharge capacity of the dynamic battery relative to the standard operating state.

2. A dynamic battery as recited in claim 1 , wherein in the standard operating mode the primary electrode material is active and the dynamic electrode material is inactive, and in the activated operating mode the dynamic electrode material is active.

3. A dynamic battery as recited in claim 1 , wherein in the standard operating mode the dynamic electrode material is inactive such that one or more of ion flow or electrical conductivity across the dynamic electrode material is less than one or more of ion flow or electrical conductivity in the activated operating mode.

4. A dynamic battery as recited in claim 1 , wherein the external stimulus comprises one or more of a catalyst applied to the dynamic electrode material, heating of the dynamic electrode material, mechanical activation, or radio wave activation.

5. A dynamic battery as recited in claim 1 , wherein the dynamic electrode material is activatable in response to a voltage drop in the dynamic battery.

6. A dynamic battery as recited in claim 1 , wherein activation of the dynamic electrode material causes the dynamic electrode material to transition from an inactive state to an active state, and wherein in the active state a discharge capacity of the dynamic battery is greater than in the inactive state.

7. A dynamic battery as recited in claim 1 , wherein the dynamic battery powers one or more components of a computing device, and wherein the dynamic electrode material is activatable in response to a power state event generated by the computing device.

8. A dynamic battery as recited in claim 1 , wherein the dynamic battery powers one or more components of a computing device, and wherein the dynamic electrode material is activatable in response to a power state event generated by the computing device, the power state event comprising one or more of a battery discharge-related event or a battery charge-related event.

9. A dynamic battery as recited in claim 1 , wherein the dynamic battery powers one or more components of a computing device, and wherein the dynamic electrode material is activatable in response to an application-related event generated by the computing device.

10. A dynamic battery comprising:
a positive electrode, a negative electrode, and a separator separating the positive electrode from the negative electrode, at least one of the positive electrode or the negative electrode including a primary electrode material and a dynamic electrode material different from the primary electrode material, the dynamic electrode material configured to change a power state of the dynamic battery by changing, in response to activation of the dynamic electrode material during a battery discharge scenario, one or more of a crystalline structure or an electrical conductivity of the dynamic electrode material.

11. A dynamic battery as recited in claim 10 , wherein the dynamic battery includes a standard operating mode and an activated operating mode, and wherein in the standard operating mode the primary electrode material is active and the dynamic electrode material is inactive, and in the activated operating mode the dynamic electrode material is active.

12. A dynamic battery as recited in claim 10 , wherein the dynamic battery includes a standard operating mode and an activated operating mode, and wherein in the standard operating mode the dynamic electrode material is inactive such that one or more of ion flow or electrical conductivity across the dynamic electrode material is less than one or more of ion flow or electrical conductivity in the activated operating mode.

13. A dynamic battery as recited in claim 10 , wherein the dynamic electrode material is activatable in response to an externally applied stimulus.

14. A dynamic battery as recited in claim 10 , wherein the dynamic electrode material is activatable in response to an externally applied stimulus, the external stimulus including one or more of a catalyst applied to the dynamic electrode material, heating of the dynamic electrode material, mechanical activation, or radio wave activation.

15. A dynamic battery as recited in claim 10 , wherein activation of the dynamic electrode material increases an ion permeability of the dynamic electrode material.

16. A dynamic battery as recited in claim 10 , wherein activation of the dynamic electrode material causes a phase change in the dynamic electrode material.

17. A dynamic battery as recited in claim 10 , wherein the dynamic electrode material comprises a nanoscale material doped with magnetic material.

18. A dynamic battery comprising:
a positive electrode, a negative electrode, and a separator separating the positive electrode from the negative electrode, at least one of the positive electrode or the negative electrode including a primary electrode material and a dynamic electrode material different from the primary electrode material, the dynamic electrode material being activatable to change a power state of the dynamic battery,
the dynamic battery configured to operate in a standard operating state during which the dynamic battery supplies power to an external circuit and ion exchange for the dynamic battery occurs primarily across the primary electrode material relative to the dynamic electrode material, and configured to operate in an activated operating state in response to an external stimulus being applied to activate the dynamic electrode material while the dynamic battery supplies power to the external circuit.

19. A dynamic battery as recited in claim 18 , wherein the activated operating state increases a discharge capacity of the dynamic battery.

20. A dynamic battery as recited in claim 18 , wherein the external stimulus comprises externally applied heating of the dynamic electrode material.

Assignees

• Microsoft Technology Licensing Llc

Inventors

• Hodges Stephen E
• Chandra Ranveer
• Meinershagen Julia L
• Priyantha Nissanka Arachchige Bodhi
• Badam Anirudh
• Moscibroda Thomas
• Ferrese Anthony John

Classifications

• H01M10/425 Primary

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title

• H01M10/4235

  Safety or regulating additives or arrangements in electrodes, separators or electrolyte (H01M10/4242 takes precedence) · CPC title

• H01M10/052

  Li-accumulators · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• H01M4/364 Primary

  as mixtures · CPC title