Power management during system startup at low temperatures

Patent metadata

Field	Value
Publication number	US-11394227-B2
Application number	US-202016864433-A
Country	US
Kind code	B2
Filing date	May 1, 2020
Priority date	May 1, 2020
Publication date	Jul 19, 2022
Grant date	Jul 19, 2022

Abstract

Apparatuses, systems, devices, and methods for power management during system startup at low temperatures are disclosed. An apparatus includes a battery for an electronic device. The battery includes one or more cells. The apparatus includes a thermal insulation element configured to insulate heat that the battery. The thermal insulation element is coupled to the battery to prevent at least a portion of the heat that the battery generates from being dissipated from the battery during startup of the electronic device.

First claim

What is claimed is:

1. An apparatus, comprising:
a battery for an electronic device, the battery comprising one or more cells; and
a thermal insulation element configured to insulate heat that the battery generates,
wherein the thermal insulation element is coupled to the battery to prevent at least a portion of the heat that the battery generates from being dissipated from the battery during startup of the electronic device, and
wherein the thermal insulation element comprises a material configured to insulate heat that the battery generates up to a predefined temperature and to conduct heat away from the battery in response to the heat that the battery generates exceeding the predefined temperature.

2. The apparatus of claim 1 , wherein the thermal insulation element is coupled to at least one cell of the one or more cells of the battery.

3. The apparatus of claim 1 , wherein the thermal insulation element is coupled to the battery and covers at least one surface of the battery.

4. The apparatus of claim 1 , wherein at least one cell of the one or more cells of the battery comprises a jelly roll, the insulation element wrapped around the jelly roll.

5. The apparatus of claim 1 , wherein the insulation element comprises an insulating sheet, the insulating sheet comprising a nano silica balloon insulator (“NASBIS”) sheet.

6. An apparatus comprising:
a battery for an electronic device, the battery comprising one or more cells;
an electrical heating element coupled to the battery, the electrical heating element activated during startup of the electronic device and configured to operate until a threshold temperature is satisfied, wherein the electrical heating element is embedded within a label adhered to the battery; and
a thermal insulation element configured to insulate heat that the battery generates,
wherein the thermal insulation element is coupled to the battery to prevent at least a portion of the heat that the battery generates from being dissipated from the battery during startup of the electronic device.

7. The apparatus of claim 6 , wherein the thermal insulation element comprises a material configured to insulate heat that the battery generates up to a predefined temperature and to conduct heat away from the battery in response to the heat that the battery generates exceeding the predefined temperature.

8. A system comprising:
a battery for an electronic device, the battery comprising one or more cells;
a thermal insulation element configured to insulate heat that the battery generates;
a temperature module that monitors a temperature associated with the electronic device during startup of the electronic device; and
a power module that, in response to the temperature being less than a threshold temperature, is configured to limit a discharge current of the battery to be less than a predefined discharge current threshold.

9. The system of claim 8 , wherein the predefined threshold is 0.5 C, where C is a rate at which the battery is discharged relative to its maximum capacity.

10. The system of claim 8 , wherein the thermal insulation element comprises a material configured to insulate heat that the battery generates up to a predefined temperature and to conduct heat away from the battery in response to the heat that the battery generates exceeding the predefined temperature.

11. The system of claim 8 , wherein the power module disables a fan within the electronic device during startup of the electronic device, the fan operable to dissipate heat from the electronic device.

12. A system comprising:
a battery for an electronic device, the battery comprising one or more cells;
a thermal insulation element configured to insulate heat that the battery generates;
a temperature module that monitors a temperature associated with the electronic device during startup of the electronic device; and
a power module that, in response to the temperature being less than a threshold temperature, disables a fan within the electronic device during startup of the electronic device, the fan operable to dissipate heat from the electronic device.

13. The system of claim 12 , wherein the thermal insulation element comprises a material configured to insulate heat that the battery generates up to a predefined temperature and to conduct heat away from the battery in response to the heat that the battery generates exceeding the predefined temperature.

14. A system comprising:
a battery for an electronic device, the battery comprising one or more cells;
a supercapacitor;
a thermal insulation element configured to insulate heat that the battery generates;
a temperature module that monitors a temperature associated with the electronic device during startup of the electronic device; and
a power module that, in response to the temperature being less than a threshold temperature, is configured to trigger discharge of the supercapacitor during startup of the electronic device until the temperature reaches a threshold temperature.

15. The system of claim 14 , further comprising a heater embedded in the battery, the power module configured to activate the heater during startup of the electronic device.

16. The system of claim 14 , wherein the thermal insulation element comprises a material configured to insulate heat that the battery generates up to a predefined temperature and to conduct heat away from the battery in response to the heat that the battery generates exceeding the predefined temperature.

17. The system of claim 14 , wherein the power module disables a fan within the electronic device during startup of the electronic device, the fan operable to dissipate heat from the electronic device.

18. A system comprising:
a battery for an electronic device, the battery comprising one or more cells;
a thermal insulation element configured to insulate heat that the battery generates;
a temperature module that monitors a temperature associated with the electronic device during startup of the electronic device; and
a power module that, in response to the temperature being less than a threshold temperature, is configured to dynamically adjust a cut-off voltage threshold for the electronic device during startup of the electronic device, the cut-off voltage threshold set in firmware for the electronic device.

19. The system of claim 18 , wherein the thermal insulation element comprises a material configured to insulate heat that the battery generates up to a predefined temperature and to conduct heat away from the battery in response to the heat that the battery generates exceeding the predefined temperature.

20. The system of claim 18 , wherein the power module is configured to adjust a discharge current of the battery to be less than a predefined threshold.

Assignees

• Lenovo Singapore Pte Ltd

Inventors

• Yebka Bouziane
• Carlson Jeremy R
• Jakes Philip
• Wong Tin-Lup

Classifications

• H02J7/977 Primary

  of the battery · CPC title

• H01M10/63

  Control systems (charging or discharging in response to temperature H01M10/44 {, H01M10/443}; measurement of temperature H01M10/48 {, H01M10/486}) · CPC title

• H01M10/654

  located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes · CPC title

• H01M10/6563

  with forced flow, e.g. by blowers · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title