Shielding receptacle for battery cells

• US 9,837,646 B2
• Filed: 01/17/2017
• Issued: 12/05/2017
• Est. Priority Date: 06/11/2014
• Status: Active Grant

• Current Assignee: PNC Bank National Association (The PNC Financial Services Group, Inc.)
• Original Assignee: Enovate Medical, LLC (Enovate Medical Holdings, LLC)
• Inventors: Miller, David R., Kilbourne, Allen, Waid, Gordon, Yang, Kou, Mason, Michael, Moody, Joseph
• Primary Examiner(s): PACHECO, ALEXIS BOATENG
• Application Number:
  US15/407,739
• Publication Number:
  US 20170125758A1
• Time in Patent Office: 322 Days
• Field of Search: 320134, 320108, 320107, 320101, 320112, 320128, 320120, 307 66, 429120, 429163, 429144, 429156, 429 99, 429 82, 429100, 429146, 429145, 429149
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• CPC Class Codes: G01V 3/12 operating with electromagnetic waves operating with millimetre waves G01V8/005
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 10/482 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 50/24 adapted for protecting batteries from their environment, e.g. from corrosion thermal insulation H01M10/658
• CPC Class Codes: H01M 50/342 Non-re-sealable arrangements
• CPC Class Codes: H02J 2310/23 The load being a medical device, a medical implant, or a life supporting device
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 50/50 using additional energy repeaters between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/0049 Detection of fully charged condition
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A thermally shielded receptacle for a rechargeable battery. The thermally shielded receptacle can include a material having a heat deflection rate of greater than 50 degrees Celsius to contain a catastrophic runaway of one or more of a plurality of individual battery cells. The thermally shielded receptacle can include material sized and shaped to receive the plurality of individual battery cells and separate each of the plurality of individual battery cells from adjacent individual battery cells.

Claims

1. A battery pack for a rechargeable battery, comprising:

a battery pack housing with an inner cavity;

a battery cell shielding receptacle located within the inner cavity of the battery pack housing for use with a plurality of battery cells;

the battery cell shielding receptacle having a first shielding receptacle section that includes a first array of cell pockets that open towards a first face of the first shielding receptacle section;

the battery cell shielding receptacle having a second shielding receptacle section that includes a second array of cell pockets that open towards a second face of the second shielding receptacle section;

wherein the first array of cell pockets correspond to the second array of cell pockets to define a plurality of cell pockets configured to receive battery cells when the first face of the first shielding receptacle section is coupled to the second face of the second shielding receptacle section.

2. The battery pack of claim 1, wherein the first array of cell pockets and corresponding second array of cell pockets are coated with a heat resistive material.

3. The battery pack of claim 1 wherein the heat resistive material is acrylonitrile butadiene styrene.

4. The battery pack of claim 1, wherein the battery pack housing or the battery cell shielding receptacle further comprises:

a one-way perforated label or a pressure release valve to release pressure caused by the catastrophic runaway of one or more of the plurality of battery cells, wherein

the one-way perforated label or the pressure release valve is configured to release pressure from the battery cell shielding receptacle or from the inner cavity of the battery pack housing when the pressure exceeds a selected threshold.

5. The battery pack of claim 1, further comprising a temperature sensor configured to:

monitor an internal temperature of the battery pack, an internal temperature of the shielding receptacle, or a temperature of one or more battery cells of the plurality of battery cells; and

provide an indication of an increase in the internal temperature of the battery pack, an internal temperature of the shielding receptacle, or a temperature of one or more battery cells of the plurality of battery cells when the increase exceeds a selected threshold.

6. The battery pack of claim 1, wherein the battery pack housing is comprised of a chemically resistant anti-bacterial material to decrease or eliminate a growth or adhesion of pathogens on the battery pack housing.

7. The battery pack of claim 6, wherein the anti-bacterial material is a polycarbonate plastic with a silver anti-bacterial additive.

8. A battery pack for a rechargeable battery, comprising:

a battery pack housing with an inner cavity;

a battery cell shielding receptacle located within the inner cavity of the battery pack housing that is sized and shaped to receive a plurality of battery cells, the battery cell shielding receptacle consisting essentially of a material having a heat deflection rate of greater than 50 degrees Celsius to absorb heat emitted from one or more of the plurality of battery cells;

wherein the battery pack housing or components in the battery pack housing are hermetically sealed to be liquid proof and dust proof or sealed to be substantially liquid proof and dust proof; and

wherein the hermetically sealed battery pack further comprises a pressure seal configured to release pressure from the battery pack housing when the pressure exceeds a selected threshold.

9. The battery pack of claim 8, wherein the battery pack housing is comprised of an anti-bacterial material to decrease or eliminate a growth or adhesion of pathogens on the battery pack housing.

10. The battery pack of claim 9, wherein the anti-bacterial material is chemically resistant.

11. The battery pack of claim 10, wherein the anti-bacterial material is a polycarbonate plastic with a silver anti-bacterial additive.

12. The battery pack of claim 8, wherein the battery cell shielding receptacle further comprises a plurality of swelling cavities or recesses configured to receive a portion of one or more battery cells of the plurality of battery cells as the one or more battery cells expand or swell.

13. The battery pack of claim 8, wherein the battery cell shielding receptacle further comprises a flexible material configured to expand as one or more battery cells of the plurality of battery cells expands or swells.

14. A battery pack for a rechargeable battery, comprising:

a battery pack housing with an inner cavity;

a battery cell shielding receptacle located within the inner cavity of the battery pack housing including a plurality of cell pockets configured to receive one or more battery cells;

a plurality of insertable shielding barriers configured to be received in one or more of the plurality of cell pockets;

the insertable shielding barriers consisting essentially of a material having a heat deflection rate of greater than 50 degrees Celsius to absorb heat emitted from the one or more battery cells; and

the insertable shielding barriers further comprising a flexible material configured to expand as the one or more battery cells expand or swell.

15. The battery pack of claim 14, wherein the battery cell shielding receptacle further comprise a swelling cavity or recess configured to receive a portion of the one or more battery cells as the one or more battery cells expand or swell.

16. The battery pack of claim 14, further comprising one or more fixed shielding barriers.

17. A thermally shielded receptacle for a rechargeable battery, the thermally shielded receptacle comprising:

a material having a heat deflection rate of greater than 50 degrees Celsius to contain a catastrophic runaway of one or more of a plurality of battery cells;

wherein

the thermally shielded receptacle is sized and shaped to receive the plurality of battery cells and separate one or more of the plurality of battery cells, and

the thermally shielded receptacle includes a cavity or recess configured to receive a portion of one or more battery cells of the plurality of battery cells as the one or more battery cells of the plurality of battery cells expand or swell.

18. The thermally shielded receptacle of claim 17, wherein the thermally shielded receptacle further comprises a flexible material configured to expand as the one or more battery cells of the plurality of battery cells expands or swells.

19. The thermally shielded receptacle of claim 17, wherein the thermally shielded receptacle further comprises:

a one-way perforated label or a pressure release valve to release pressure caused by the catastrophic runaway of the one or more battery cells of the plurality of battery cells, wherein

the one-way perforated label or the pressure release valve is configured to release pressure from the battery cell shielding receptacle or from the inner cavity of the battery pack housing when the pressure exceeds a selected threshold.

20. The thermally shielded receptacle of claim 17, further comprising a temperature sensor configured to:

monitor an internal temperature of the shielding receptacle or temperature of the one or more battery cells of the plurality of battery cells; and

provide an indication of an increase in the internal temperature of the shielding receptacle, or a temperature of the one or more battery cells of the plurality of battery cells when the increase exceeds a selected threshold.