Modular battery configured for wire bonding

{
  "publication_number": "US11923552B2",
  "country": "US",
  "kind": "B2",
  "title": "Modular battery configured for wire bonding",
  "abstract": "Aspects of a modular clip for an electric battery module, a battery module comprising multiple such modular clips, and a battery pack comprising multiple battery modules are provided. The modular clip includes a housing configured to receive a plurality of battery cells. The modular clip may further comprise at least one interconnect plate. The modular clip may further comprise a retainer plate including a plurality of top cell recesses, each of the plurality of top cell recesses may comprise an opening to enable wire bonds between electrical terminals of a battery cell and the at least one interconnect plate. The battery module may comprise a plurality of wire bonds between at least one voltage sensing PCB and the at least one interconnect plate.",
  "claims": [
    "1. A modular clip for a battery module, the modular clip comprising: a housing configured to receive a plurality of battery cells, the housing including: a retainer plate including a plurality of top cell recesses, wherein each of the plurality of top cell recesses comprises: an opening extending through the retainer plate and shaped to open around at least a portion of a first electrical terminal of a battery cell and to open around at least a portion of a second electrical terminal of the battery cell, when the battery cell is received in the housing, wherein the opening includes a top side and a bottom side, wherein the top side and the bottom side have different shapes, wherein at the bottom side of the opening, the retainer plate comprises a cell recess shaped to surround an exterior of the battery cell, when the battery cell is received in the housing; and a first wire bond from the first electrical terminal of a first battery cell to a first interconnect plate and a second wire bond from the second electrical terminal of the first battery cell to a second interconnect plate, wherein the first interconnect plate and the second interconnect plate are positioned at opposite sides of the opening.",
    "2. The modular clip of claim 1, wherein the housing further comprises: a clip shell including: a base portion including a plurality of bottom cell recesses configured to receive bottom portions of the plurality of battery cells when received in the housing; a first wall extending from the base portion; and a second wall extending from the base portion and spaced from the first wall.",
    "3. The modular clip of claim 1, wherein the top side of the opening comprised in the retainer plate includes a first part having a partial circular shape, and a second part having an asymmetric shape.",
    "4. The modular clip of claim 3, wherein the first part has a first radius of curvature, and a segment of the second part has a second radius of curvature that is different than the first radius of curvature, and wherein the bottom side of the opening comprised in the retainer plate includes an indent having a circular shape with a third radius of curvature that is different than the first radius of curvature and the second radius of curvature.",
    "5. The modular clip of claim 4, wherein the third radius of curvature is larger than the first radius of curvature, and wherein the third radius of curvature is smaller than the second radius of curvature.",
    "6. The modular clip of claim 1, wherein the modular clip is configured to receive and position the plurality of battery cells in a linear direction, wherein the modular clip further comprises at least one strip shaped interconnect plate extending in the linear direction.",
    "7. The modular clip of claim 1, wherein the retainer plate further comprises: a plurality of heat stakes.",
    "8. The modular clip of claim 1, wherein the retainer plate further comprises: a plurality of locating buttons configured to align the retainer plate with an interconnect plate.",
    "9. The modular clip of claim 1, wherein the retainer plate further comprises a plurality of holes configured to receive a fastener for connecting the retainer plate to a side interconnect plate disposed at a side of the modular clip.",
    "10. The modular clip of claim 1, wherein the retainer plate further comprises at least one barrier extending from the top side of the retainer plate.",
    "11. The modular clip of claim 10, wherein the at least one barrier is positioned between a terminal of the battery cell and the first interconnect plate, when the battery cell is received in the housing.",
    "12. The modular clip of claim 1, further comprising: the plurality of battery cells positioned in the housing.",
    "13. The modular clip of claim 1, wherein the first wire bond and the second wire bond are both formed at a same side of the modular clip.",
    "14. The modular clip of claim 1, further comprising: a voltage sensing Printed Circuit Board (PCB); and a controller board, wherein at least one of the first interconnect plate or the second interconnect plate connect at least a subset of the plurality of battery cells to the controller board via the voltage sensing PCB.",
    "15. A battery module for a battery pack assembly, the battery module comprising: a base plate; and a plurality of modular clips coupled to the base plate, each of the plurality of modular clips including: a housing configured to receive a plurality of battery cells, the housing including: the plurality of battery cells positioned in the housing; a retainer plate including a plurality of top cell recesses, wherein each of the plurality of top cell recesses comprises: an opening extending through the retainer plate and shaped to open around at least a portion of a first electrical terminal of a battery cell and to open around at least a portion of a second electrical terminal of the battery cell, when the battery cell is received in the housing, wherein the opening includes a top side and a bottom side, wherein the top side and the bottom side have different shapes, wherein at the bottom side of the opening, the retainer plate comprises a cell recess shaped to surround an exterior of the battery cell, when the battery cell is received in the housing; and a first wire bond from the first electrical terminal of a first battery cell to a first interconnect plate and a second wire bond from the second electrical terminal of the first battery cell to a second interconnect plate, wherein the first interconnect plate and the second interconnect plate are positioned at opposite sides of the opening.",
    "16. The battery module of claim 15, wherein the top side of the opening comprised in the retainer plate includes a first part having a partial circular shape, and a second part having an asymmetric shape.",
    "17. The battery module of claim 16, wherein the first part has a first radius of curvature, and a segment of the second part has a second radius of curvature that is different than the first radius of curvature, wherein the bottom side of the opening comprised in the retainer plate includes an indent having a circular shape with a third radius of curvature that is different than the first radius of curvature and the second radius of curvature.",
    "18. The battery module of claim 17, wherein the third radius of curvature is larger than the first radius of curvature, and wherein the third radius of curvature is smaller than the second radius of curvature.",
    "19. The battery module of claim 15, wherein each modular clip is configured to receive and position the plurality of battery cells in a linear direction, wherein each modular clip further comprises at least one strip shaped interconnect plate extending in the linear direction.",
    "20. The battery module of claim 15, wherein the retainer plate further comprises: a plurality of heat stakes.",
    "21. The battery module of claim 15, wherein the retainer plate further comprises: a plurality of locating buttons configured to align the retainer plate with an interconnect plate.",
    "22. The battery module of claim 15, wherein the retainer plate further comprises a plurality of holes configured to receive a fastener for connecting the retainer plate to a side interconnect plate disposed at a side of the battery module.",
    "23. The battery module of claim 15, wherein the retainer plate further comprises at least one barrier extending from the top side of the retainer plate.",
    "24. The battery module of claim 15, wherein the first wire bond and the second wire bond are both formed at a same side of a modular clip comprised in the battery module.",
    "25. A battery pack comprising: a plurality of battery modules, each battery module including: a base plate; and a plurality of modular clips coupled to the base plate, each of the plurality of modular clips including: a housing configured to receive a plurality of battery cells, the housing including: a retainer plate including a plurality of top cell recesses, wherein each of the plurality of top cell recesses comprises: an opening extending through the retainer plate and shaped to open around at least a portion of a first electrical terminal of a battery cell and to open around at least a portion of a second electrical terminal of the battery cell, when the battery cell is received in the housing, wherein the opening includes a top side and a bottom side, wherein the top side and the bottom side have different shapes, wherein at the bottom side of the opening, the retainer plate comprises a cell recess shaped to surround an exterior of the battery cell, when the battery cell is received in the housing; and a first wire bond from the first electrical terminal of a first battery cell to a first interconnect plate and a second wire bond from the second electrical terminal of the first battery cell to a second interconnect plate, wherein the first interconnect plate and the second interconnect plate are positioned at opposite sides of the opening.",
    "26. The battery pack of claim 25, wherein the top side of the opening comprised in the retainer plate includes a first part having a partial circular shape, and a second part having an asymmetric shape.",
    "27. The battery pack of claim 26, wherein the first part has a first radius of curvature, and a segment of the second part has a second radius of curvature that is different than the first radius of curvature, and wherein the bottom side of the opening comprised in the retainer plate includes an indent having a circular shape with a third radius of curvature that is different than the first radius of curvature and the second radius of curvature.",
    "28. The battery pack of claim 27, wherein the third radius of curvature is larger than the first radius of curvature, and wherein the third radius of curvature is smaller than the second radius of curvature.",
    "29. The battery pack of claim 25, further comprising: the plurality of battery cells positioned in the housing.",
    "30. The battery pack of claim 25, wherein the first wire bond and the second wire bond are both formed at a same side of a modular clip comprised in a battery module of the battery pack."
  ],
  "description_excerpt": "Aspects of the present disclosure relate generally to an electric battery module and an electric battery pack with modular design. Specifically, aspects of the present disclosure relate to an electric battery module configured for wire bonding.\n\nElectric batteries may be used in a number of applications. As one example, electric batteries may be used to power electric vehicles in place of a combustion engine in order to reduce fuel consumption and vehicle emissions pollution. Electric vehicles are environmental friendly and do not exhaust any byproducts. Currently, car manufacturers are focusing on the development of battery powered electric vehicles for mass markets. One of the key challenges of electric vehicles is the battery pack design. The auto industry places demands on the power density, energy density and safety of the batteries and push for the development of batteries that combine high performance with low cost. However, the conventional battery pack design is not adapted for mass assembly and production. The manual assembly and production of the battery pack contributes to the high cost of electrical vehicles.\n\nElectric batteries may also be used for energy storage systems, e.g., to store energy for utilities and/or to supply power to a residential or commercial buildings, or a power plant. Thus, electric batteries with high performance and low manufacturing costs are desirable for both mobile applications as well as stationary energy storage applications.",
  "cpc": [
    "H01M 50/20",
    "H01M 10/425",
    "H01M 10/48",
    "H01M 10/482",
    "H01M 2010/4271",
    "H01M 2220/20",
    "H01M 50/244",
    "H01M 50/284",
    "H01M 50/502",
    "H01M 50/519",
    "Y02E 60/10"
  ],
  "ipc": [
    "H01M 10/42",
    "H01M 10/48",
    "H01M 50/20",
    "H01M 50/502",
    "H01M 50/147",
    "H01M 50/148",
    "H01M 50/204"
  ],
  "assignees": [
    "Xos Inc"
  ],
  "inventors": [
    "John Henry HARRIS, III"
  ],
  "filing_date": "2021-10-08",
  "publication_date": "2024-03-05",
  "grant_date": "2024-03-05",
  "priority_date": "2018-02-03",
  "application_number": "US-202117497814-A",
  "family_id": "83007232",
  "cited_by_count": 1,
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}