WO2013113087A1 - Support d'élément de batterie - Google Patents

Support d'élément de batterie Download PDF

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Publication number
WO2013113087A1
WO2013113087A1 PCT/CA2012/000102 CA2012000102W WO2013113087A1 WO 2013113087 A1 WO2013113087 A1 WO 2013113087A1 CA 2012000102 W CA2012000102 W CA 2012000102W WO 2013113087 A1 WO2013113087 A1 WO 2013113087A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
stack
carrier
recess
protrusion
Prior art date
Application number
PCT/CA2012/000102
Other languages
English (en)
Inventor
Hoang Phu NGUYEN
Johannes Christian KRUGER
Brent Anthony PERRY
Colm Murphy
Original Assignee
Corvus Energy Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Corvus Energy Ltd. filed Critical Corvus Energy Ltd.
Priority to PCT/CA2012/000102 priority Critical patent/WO2013113087A1/fr
Publication of WO2013113087A1 publication Critical patent/WO2013113087A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present disclosure is directed at a battery cell carrier.
  • a cell carrier which includes a rigid backing; and bus bar supports rigidly mounted to the rigid backing, the bus bar supports having sockets positioned to receive fasteners for securing bus bars to the bar supports.
  • the cell carrier may also include a raised edge coupled to the rigid backing, the rigid backing and the raised edge delimiting a compartment for receiving a cell.
  • the raised edge may include the bus bar supports.
  • the raised edge may be coupled continuously along its length to the rigid backing. Alternatively, the raised edge may be coupled intermittently along its length to the rigid backing.
  • the cell carrier may include a vent between the rigid backing and a side of the raised edge that extends parallel to the side of the raised edge.
  • the cell carrier may also include an alignment guide coupled to the rigid backing, the alignment guide including one of a protrusion and recess on a front side of the carrier against which the cell is to be placed and the other of the protrusion and recess on a rear side of the carrier opposed to the front side, the protrusion and recess matably couplable to each other and positioned such that in a stack including multiple cell carriers the protrusion from one of the cell carriers in the stack is fitted within the recess of an adjacent one of the cell carriers in the stack.
  • the protrusion and recess may be shaped such that an interference fit results when the protrusion is inserted into the recess.
  • the alignment guide may be to the rigid backing and include a protrusion and a recess ("front side protrusion and recess”) on a front side of the carrier against which the cell is to be placed and an additional protrusion and an additional recess ("rear side protrusion and recess”) on a rear side of the carrier opposed to the front side, the front side protrusion and recess respectively matably couplable to the rear side recess and protrusion such that in a stack having multiple cell carriers the front and rear side protrusions of one of the cell carriers in the stack are respectively fitted within the rear and front side recesses of an adjacent one of the cell carriers in the stack.
  • the protrusions and recesses may be shaped such that an interference fit results when the front side protrusion is inserted into the rear side recess and when the rear side protrusion is inserted into the front side recess.
  • At least one of the recesses and protrusions may include ridges positioned to enhance the interference fit.
  • the front and rear side protrusions and recesses may be part of the raised edge.
  • the cell carrier may also include a slot positioned to allow the raised edge to flex into the slot when the front side protrusion and recess are respectively matably coupled to the rear side recess and protrusion of the adjacent one of the cell carriers in the stack.
  • the front side protrusion and rear side protrusion may each include a series of spaced protrusions, and the front side recess and the rear side recess may each include a series of spaced recesses.
  • the alignment guide may also include an orientation guide having orientation protrusions and orientation recesses positioned to allow one of the cell carriers in the stack to be fitted to the adjacent one of the cell carriers in the stack in only one orientation.
  • the orientation protrusions may include a pair of front side orientation protrusions located on diagonally opposed comers of the front side and a pair of rear side orientation protrusions located on diagonally opposed corners of the rear side
  • the orientation recesses may include a pair of front side orientation recesses located on diagonally opposed corners of the front side and a pair of rear side orientation recesses located on diagonally opposed corners of the rear side.
  • the cell carrier may also include a dowel hole positioned such that in a stack including multiple cell carriers the dowel holes of the cell carriers in the stack align to form a dowel channel extending through the stack.
  • a stack including battery cells including tabs; and multiple cell carriers attached together.
  • Each of the cell carriers includes a rigid backing to which one of the battery cells is adhered; bus bar supports rigidly mounted to the rigid backing, the bus bar supports having sockets positioned to receive fasteners for securing bus bars to the bar supports; and an alignment guide coupled to the rigid backing, the alignment guide including one of a protrusion and recess on a front side of the carrier against which the cell is to be placed and the other of the protrusion and recess on a rear side of the carrier opposed to the front side, the protrusion and recess matably couplable to each other and positioned such that in a stack including multiple cell carriers the protrusion from one of the cell carriers in the stack forms an interference fit with the recess of an adjacent one of the cell carriers in the stack.
  • the stack may also include one or more heat conductive sheets, each of which contacts one of the cells and has a portion contained within the stack that is coplanar with the rigid backing of the compartment in which the one of the cells is located, and each of which may extend out of the stack.
  • At least one of the cell carriers may also include a vent between the rigid backing and a side of the raised edge that extends parallel to the side of the raised edge, and at least one of the heat conductive sheets may extend out through the vent.
  • At least one of the cells may be contacted on one side by one of the heat conductive sheets and may be contacted on an opposing side by another of the heat conductive sheets.
  • Each of the cell carriers may also include a dowel hole positioned such that the dowel holes align to form a dowel channel extending through the stack when the stack is assembled, and the stack may also include a dowel extending through the dowel channel and a clamp located at the end of the dowel that secures the cell carriers together.
  • a method for assembling a stack which includes assembling multiple cell carrier assemblies, aligning the cell carrier assemblies together; inserting a dowel through a dowel channel of the stack; and securing the stack in place by clamping the stack along the dowel.
  • Each of the cell carrier assemblies includes a battery cell having tabs; and a cell carrier, which includes: (1) a rigid backing to which the cell is adhered; (2) bus bar supports rigidly mounted to the rigid backing, the bus bar supports having sockets positioned to receive fasteners for securing bus bars to the bar supports; and (3) an alignment guide coupled to the rigid backing, the alignment guide having one of a protrusion or recess on a front side of the carrier against which the cell is to be placed and the other of the protrusion or recess on a rear side of the carrier opposed to the front side, the protrusion and recess matably couplable to each other and positioned such that in the stack having multiple cell carriers the protrusion from one of the cell carriers in the stack forms an interference fit with the recess of an adjacent one of the cell carriers in the stack; and (4) a dowel hole positioned such that the dowel holes of the cell carriers in the stack align to form a dowel channel extending through the stack.
  • Assembling each of the cell carrier assemblies may also include laying a heat conductive sheet against the cell, and the heat conductive sheet may extend out of the stack when the stack is assembled.
  • Figures 1(a) and (b) are perspective views of a cell carrier, according to one embodiment.
  • Figure 2 is a front elevation view of the cell carrier of Figure 1(a).
  • Figure 3 is a left side elevation view of the cell carrier of Figure 1(a).
  • Figure 4 is a rear elevation view of the cell carrier of Figure 1 (a).
  • Figure 5 is a top plan view of the cell carrier of Figure 1(a).
  • Figure 6 is a right side elevation view of the cell carrier of Figure 1 (a).
  • Figure 7 is a bottom plan view of the cell carrier of Figure 1 (a).
  • Figure 8 is an exploded view of a cell carrier assembly, which includes the cell carrier of Figure 1(a), according to another embodiment.
  • Figure 9 is an exploded view of a stack having multiple of the cell carrier assemblies of Figure 8, according to another embodiment.
  • Figure 10 is method for assembling the stack of Figure 9, according to another embodiment. DETAILED DESCRIPTION
  • the embodiments described herein are directed at a carrier for a battery cell.
  • the carrier includes a compartment into which the cell can be placed, which protects the cell from impact and vibration that could impair the cell's performance.
  • the carrier is also modular in that it can be matably coupled to other carriers to form a stack of cells.
  • Figures 1 to 7 there is shown a cell carrier 100 according to one embodiment.
  • Figure 1(a) and (b) show perspective views of the cell carrier 100;
  • Figures 2 and 4 respectively show front and rear elevation views of the cell carrier 100;
  • Figures 3 and 6 respectively show left and right side elevation views of the cell carrier 100;
  • Figures 5 and 7 respectively show top and bottom plan views of the cell carrier 100.
  • the cell carrier 100 includes a rigid backing 102.
  • a raised edge 104 Lining the periphery of the rigid backing 102 is a raised edge 104; the portion of the raised edge 104 on the front side of the rigid backing 102 and the rigid backing 102 itself collectively delimit a compartment 106 into which a cell 802 (not shown in Figures 1 through 7, but shown in Figures 8 and 9) is placed during battery pack assembly. As discussed below with respect to Figures 8 to 10, the cell 802 is typically placed in the compartment 106 and then adhered to the front side of the rigid backing 102 so as to limit movement of the cell 802 within the compartment 106 during battery pack usage. [0039]
  • the top side of the raised edge 104 includes a pair of bus bar supports
  • bar supports 108 against which the cell 802's positive and negative electrodes, which take the form of tabs 804a,b (collectively “tabs 804", not shown in Figures 1 through 7, but shown in Figure 8), are pressed and secured during battery pack assembly.
  • the bar supports 108 include sockets HOa-d (collectively, “sockets 110") into which fasteners (not shown) can be inserted to secure bus bars (not shown) and the tabs 804, as discussed in more detail below.
  • the cell 802 's positive electrode is placed on one of the bar supports 108a, while the cell 802's negative electrode is placed on the other of the bar supports 108b.
  • the tops of the bar supports 108 and the interiors of the sockets 1 10 are lined with metal as opposed to being made only of plastic, which is what is used to make the remainder of the carrier 100; the bar supports 108 include metal to prevent plastic creep from altering the shape of the bar supports 108 over the carrier 100's lifetime.
  • the bus bars are laid flat over the bar supports 108 and fasteners (not shown) are inserted through the bus bars, through the cell tabs 804 and into the sockets 110 of the bar supports 108.
  • the tabs 804 are pressed between the bus bars and the bar supports 108.
  • the bus bars are used to conduct current from the cells 802, via the tabs 804, to an electrical load (not shown).
  • bus bars are placed on the bar supports 108 and electrically connect multiple cell carriers 100 together, it is also beneficial to have the bar supports 108 be coplanar.
  • a datum 130 relative to which measurements of the carrier 100 are made during its injection molding is positioned near the bar supports 108.
  • the datum 130 is located equidistant between the bar supports 108, along the top side of the raised edge 104.
  • protrusions 1 12a-f Spaced along the left and right sides of the raised edge 104, and extending away from the carrier 100 normal to the front side of the rigid backing 102, are a number of protrusions 1 12a-f (collectively, “front side protrusions 112") and recesses 1 15a-f (collectively, “front side recesses 1 15").
  • protrusions 1 13a-f Positioned along the left and right edges of the rear side of the rigid backing 102, and extending away from the carrier 100 normal to the rear side of the rigid backing 102, are additional protrusions 1 13a-f (collectively, “rear side protrusions 113") and recesses 1 14a-f (collectively, "rear side recesses 114").
  • the front and rear side protrusions 1 12,114 are identically shaped, and the front and rear side recesses 1 15,1 14 are identically shaped.
  • the recesses 115,1 14 and protrusions 112,1 13 are also shaped so that they are matably couplable with each other; i.e., so that any one of the protrusions 112,1 13 is shaped to snugly fit within, and form an interference fit with, any one of the recesses 115,1 14.
  • the recesses 1 15,114 and protrusions 1 12,1 13 are complementarity positioned to each other in that when two of the carriers 100 are aligned front side-to-rear side and are pushed into each other, each of the rear side recesses 1 14 of the frontmost of the two carriers 100 receives one of the front side protrusions 112 of the other of the carriers 100, and each of the rear side protrusions 1 13 of the frontmost of the two carriers 100 is inserted into one of the front side recesses 115 of the other of the carriers 100. If the two carriers 100 and consequently the protrusions 1 12,113 and recesses 115,114 are not aligned with each other, the two carriers 100 will not fit together snugly.
  • This contact enhances the interference fit between these particular pairs of protrusions 1 12c,l 13f and recesses 1 15f,l 14f, helping to increase the stability of a stack 900 (not shown in Figures 1 to 8, but shown in Figure 9) of the cell carriers 100.
  • the recesses 115f,l 14f flex and elastically deform when the protrusions 112c,l 13f are within them.
  • a pair of slots 118 extending parallel and positioned adjacent to the protrusions 112c,113f, and that pass through the raised edge 104 and rigid backing 102, are present.
  • the slots 1 18 have a length of about 1.5 times the length of the protrusions 1 12c,1 13f, and are positioned so that the midpoints of the two slots 1 18 and the midpoints of the protrusions 1 12c,l 13f are all collinear.
  • the corners on the front and rear sides of the carrier 100 also include diagonally opposed orientation protrusions and orientation recesses: front side orientation protrusions 122a,b; rear side orientation protrusions 126a,b; front side orientation recesses 124a,b; and rear side orientation recesses 128a,b (collectively, the front and rear side orientation protrusions are "orientation protrusions 122,126" and the front and rear side orientation recesses are "orientation recesses 124,128").
  • the front side orientation protrusions 122a,b are positioned at the bottom left and top right corners of the carrier 100 along the raised edge 104, while the front side orientation recesses 124a,b are positioned at the bottom right and top left corners of the carrier 100 along the raised edge 104.
  • the rear side orientation protrusions 126a,b are similarly located at the bottom left and top right corners of the carrier 100, while the rear side orientation recesses 128a,b are located at the bottom right and top left corners of the carrier 100.
  • the orientation protrusions 122b, 126b and recesses 124b, 128b that are positioned in the top corners of the carrier 100 are shaped to be matably couplable with each other, while the orientation protrusions 122a, 126a and recesses 124a, 128a that are positioned in the bottom corners of the carrier 100 are shaped to be matably couplable with each other.
  • the orientation protrusions 122b, 126b and recesses 124b, 128b that are positioned in the top corners of the carrier 100 are larger than, and are consequently not matably couplable with, those in the bottom corners of the carrier 100.
  • orientation protrusions 122,126 and orientation recesses 124,128 are diagonally opposed to each other ensures that someone assembling the stack 900 of multiple cell carriers 100 is only able to attach the rear side of one of the cell carriers 100 to the front side of an adjacent one of the cell carriers 100.
  • the fact that the orientation protrusions 122b, 126b and the recesses 124b, 128b in the top corners of the carrier 100 are larger than those in the bottom corners also prevents someone from attaching one carrier 100 upside down relative to another carrier 100.
  • the orientation protrusions 122,126 and recesses 124,128 serve both to facilitate proper orientation of the cell carriers 100 relative to each other, and in aligning the cell carriers 100 with each other.
  • the orientation protrusions 122,126 and recesses 124,128 accordingly collectively function as an orientation guide that facilitates straightforward assembly of the stack 900, and as part of the alignment guide discussed above.
  • the cell carrier 100 also includes four dowel holes 120a-d (collectively,
  • dowel holes 120 are on opposing sides of the raised edge 104 between the orientation protrusions 122b, 126b and recesses 124b, 128b in the top corners of the carrier 100 and the protrusions 112d, 113a and recesses 1 15a, 114a that demarcate the top of the alignment guide.
  • the remaining dowel holes 120b,c are on opposing sides of the raised edge 104 between the orientation protrusions 122a,126a and recesses 124a,128a in the bottom corners of the carrier 100 and the protrusions 1 12c,1 13f and recesses 115f,114f that demarcate the bottom of the alignment guide.
  • the dowel holes 120a-d also align to form four dowel channels 902 (not shown in Figures 1 through 8, but shown in Figure 9) through which the dowels may be inserted, as discussed in more detail below.
  • a pair of hooks 132 that are located adjacent to each of the bar supports 108, between the bar supports 108 and the top corners of the carrier 100.
  • the hooks 132 allow the carrier 100 to be picked up by a lifting device instead of manually. This is beneficial, for example, when lifting the stack 900, as the relatively high number of carriers 100 included in the stack 900 may make the stack 900 too heavy to manually lift.
  • the stack 900 may be lifted into and out of a container in which the stack 900 may be positioned without disturbing the sides of the container.
  • the cell carrier assembly 800 includes the cell carrier 100 depicted in Figures 1 through 7; the cell 802 itself (which may be a 75Ah Lithium Ion cell provided by Dow KokamTM of Midland, Michigan, or any other suitable cell such as a large format prismatic cell or a layered cell); and a heat conductive sheet 806 used to control temperature of the cell carrier assembly 800 during use by conducting heat away from the cell carrier assembly 800 to a heat sink (not shown).
  • the heat conductive sheet 806 may, for example, be a graphite sheet such as the eGraf SpreaderShieldTM sheet provided by GrafTech International of Lakewood, Ohio.
  • an adhesive such as 3M's 5572 adhesive, or any other suitable adhesive, is applied to the front side of the cell carrier 100, which is the surface within the compartment 106 against which the cell 802 is placed during use.
  • the cell 802 is then placed within the compartment 106 and laid on the adhesive so that it is secured within the compartment 106.
  • double-sided tape may be first applied to hold the cell 802 in place while the adhesive cures.
  • the compartment 106 has dimensions that are approximately 5% deeper than the thickness of the cell 802. The length and width of the compartment 106 correspond to the recommended dimensions supplied by the cell 802 manufacturer.
  • the heat conductive sheet 806 is laid on to the exposed surface of the cell 802 and adhered to the cell 802 with a contact adhesive, and the bottom end of the sheet 806 is folded over the bottom of the cell 802 and cell carrier 100 so that it is on the outside of the cell carrier 100. This allows the sheet 806 to cool the cell carrier assembly 800 during use by conducting heat out of the assembly 800. Neither the alignment guide nor the orientation guide utilize an interference fit along the bottom of the cell carrier 100, which allows the sheet 806 to exit out through the bottom of the carrier 100.
  • FIG. 9 there are shown an exploded view of the stack 900, which is assembled from multiple cell carrier assemblies 800, and a method 1000 for assembling the stack 900, according to additional embodiments.
  • the method 1000 begins at block 1002, and proceeds to block 1004 in which multiple cell carrier assemblies 800 are assembled.
  • the cell carrier assemblies 800 may be assembled in accordance with the discussion for Figure 8, above.
  • the method 1000 proceeds to block 1006 where the cell carrier assemblies 800 are aligned to form the basis for the stack 900, as shown in Figure 9.
  • aligning the cell carrier assemblies 800 involves placing the rear side of one of the cell carrier assemblies 800 adjacent the front side of another of the cell carrier assemblies 800 such that the all of the protrusions and recesses on the rear side of the frontmost cell carrier assembly 800 are aligned with their counterparts on the front side of the other cell carrier assembly 800, and then pushing the two cell carrier assemblies 800 together so that the aligned recesses and protrusions become matably coupled with each other.
  • the bus bars are fastened to the bar supports 108, as mentioned above; the fasteners used to secure the bus bars to the bar supports 108 are also inserted through holes in the tabs 802 so that the bus bars press and secure the tabs 802 against the bar supports 108 when the stack 900 is assembled.
  • a suitable type of fastener that can be used is, for example, an M4 bolt; however, any other suitable fastener may be used.
  • the sockets 110 are designed to have ridges that are suitable for injection molding and that prevent the fasteners from being pulled out of the sockets 1 10 during typical use of the cell carrier assembly 800.
  • a spacer plate 909 is aligned with and placed on the frontmost of the cell carrier assemblies 800.
  • the spacer 909 includes an opening sized to receive a portion of the cell 802 that is in the compartment 106 of the frontmost of the carrier assemblies 800, in order to accommodate expansion of this cell 802 should it experience thermal expansion.
  • a portion of the raised edge 104a that extends past the rear side of the carrier 100 by around 1 mm creates a cavity on the rear side of each of the carrier assemblies 800 that accommodates the thermal expansion of the other cells 802 used in the stack 900.
  • End plates 908 are placed on the ends of the stack 900 to shield the cell carrier assemblies 800 from the environment.
  • a label 912 identifying the particular stack 900 is placed on one of the end plates 908.
  • the heat conductive sheet 806 from each of the cell carrier assemblies 800 extends out the bottom of the stack 900, facilitating heat dissipation in any suitable way, such as conduction away from the stack 900. Alignment also results in formation of the four dowel channels 902, and at block 1008 one of the dowels 904 is inserted through each of the dowel channels 902 and through dowel holes (unlabeled) in the end plates 908.
  • Washers 910 are subsequently slipped on to the exposed ends of the dowels 904, and at block 1010 each of the dowels 904 is clamped using clamps (not shown) that are threaded on to the ends of each of the dowels 904.
  • the washers 910 are Belleville washers, which allow for expansion and contraction of the stack 900, and the clamps used are circlips.
  • the dowels 904 may be threaded and NylocTM nuts may be used as clamps and screwed on to the end of the dowels 904. In alternative embodiments, other suitable clamps may be used.
  • the stack 900 is assembled and the method 1000 ends at block 1012.
  • the stack 900 may optionally be laid on to a base plate 906.
  • Using the cell carrier 100 in the stack 900 means that assembling the stack
  • the stack 900 can be done without concern of exposure to noxious fumes, and without requiring a room as free from dust and dirt as is typically used when epoxy is used to secure the cells 802. Assembly can be done relatively quickly because there is no need to wait for any materials to cure, and as discussed above the cells 802 are beneficially held stably and securely in place. Additionally, when any of the cell carrier assemblies 800 is to be repaired, the stack 900 can be partially disassembled by performing the method 1000 in reverse in order to access and then remove from the stack 900 the desired cell carrier assemblies 800. The stack 900 can then be reassembled with the removed cell carrier assemblies 800 absent, or the removed cell carrier assemblies 800 can be replaced so as to maintain the stack 900' s output. The cell carrier 100 accordingly facilitates construction of a modular stack.
  • the cell carrier 100 may be made from any suitable material.
  • the cell carrier 100 may be made primarily of plastic.
  • Valox 357 resin from GETM Plastics is one exemplary plastic that may be used as it has a suitably high heat deflection temperature (HDT), and is accordingly able to withstand the heat emitted by the cells 802 during operation.
  • HDT heat deflection temperature
  • each of the dowels 904 may have a series of spaced notches extending along its length, with each of the notches shaped to receive one of the cell carriers 100 such that the carrier 100 is prevented from moving along the dowel 904. In this way, even without the raised edge 104, the cell carrier assemblies 800 may be spaced so that the cells 802 have sufficient space to thermally expand.
  • the alignment guide of the cell carrier 100 may include spacing rods that extend perpendicularly from the rigid backing 102, and whose ends are configured to matably couple with the spacing rods of an adjacent one of the carriers 100.
  • the cell carrier assembly 800 may utilize two or more of the heat conductive sheets 806.
  • the cell 802 may be sandwiched between two of the heat conductive sheets 806, with both of the sheets 806 exiting the compartment 106 through the bottom of the cell carrier 100.
  • one or more of the sheets 806 may exit the compartment 106 through one or more the top, left, and right sides of the cell carrier 100 in addition or alternatively to the bottom of the carrier 100.
  • the carrier 100 may include vents positioned between the rigid backing 102 and the raised edge 104 on the left and right sides of the carrier 100 through which the sheets 806 may exit.
  • vents may be manufactured by intermittently connecting the raised edge 104 to the rigid backing 102, for example only connecting the raised edge 104 to the corners of the rigid backing 102, as opposed to having the raised edge 104 be continuously coupled to the rigid backing 102 as is shown in the depicted embodiments.
  • the alignment and orientation guides may also be different in alternative embodiments.
  • the protrusions and recesses may appear on only one of the left and right sides of the rigid backing 102 instead of on both the left and right sides.
  • the protrusions and recesses may appear along the bottom side of the rigid backing 102.
  • the protrusions and recesses also may not alternate in series along the raised edge 104; for example, the front side of the raised edge may have all protrusions, while the rear side may have all recesses.
  • the compartment 106 has a rigid cover placed on top of the raised edge 104 to shield what is the exposed side of the cell 802 in the depicted embodiments above.
  • the alignment guide may be centrally located on the rigid backing 102 and cover.
  • the rigid backing 102 extends beyond the raised edge 104.
  • the embodiments above also have the compartment 106 and the raised edge 104 on the front side of the carrier 100, with the rear side of the carrier 100 being relatively flat.
  • the carrier 100 may be made thicker such that both the front and rear sides of the carrier include compartments, which allows one carrier 100 to hold two of the cells 802.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention concerne un support d'élément de batterie, un empilement qui comprend plusieurs supports d'élément de batterie et un procédé d'assemblage de l'empilement. Le support d'élément de batterie possède un support rigide et des supports de barres omnibus montés rigides sur le support rigide. Les supports de barres omnibus présentent des douilles placées pour recevoir des fixations, afin de fixer les barres omnibus sur les supports de barres omnibus. Un élément de batterie qui possède des électrodes sous la forme de rabats pliables peut être fixé au support d'élément de batterie, par exemple en faisant adhérer le corps d'élément sur le support rigide. Les rabats d'élément de batterie sont fixés entre les barres omnibus et les supports de barres omnibus lorsque les barres omnibus sont fixées sur les supports de barres omnibus et les supports montés rigides aident à éviter un mouvement relatif entre le corps d'élément et les rabats. Ceci aide à éviter que les rabats d'élément de batterie ne se déchirent ou ne s'arrachent lorsque l'élément de batterie est soumis à des vibrations pendant l'utilisation.
PCT/CA2012/000102 2012-02-01 2012-02-01 Support d'élément de batterie WO2013113087A1 (fr)

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CN107112461A (zh) * 2015-12-04 2017-08-29 株式会社Lg 化学 包括具有夹持部的盒的电池模块
US10665848B2 (en) 2015-01-05 2020-05-26 Cps Technology Holdings Llc Battery module bus bar carrier having guide extensions system and method

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US20040021442A1 (en) * 2002-07-30 2004-02-05 Nissan Motor Co., Ltd. Battery module
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US20080090137A1 (en) * 2006-10-13 2008-04-17 Derrick Scott Buck Battery pack with integral cooling and bussing devices
US20090325059A1 (en) * 2008-06-30 2009-12-31 Lg Chem, Ltd. Battery Module Having Battery Cell Assemblies With Alignment-Coupling Features
US20100247998A1 (en) * 2009-01-12 2010-09-30 A123 Systems, Inc. Busbar supports and methods of their use for battery systems
US20120021271A1 (en) * 2010-07-26 2012-01-26 Tom Tople Battery cell system with interconnected frames

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US20080090137A1 (en) * 2006-10-13 2008-04-17 Derrick Scott Buck Battery pack with integral cooling and bussing devices
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US20100247998A1 (en) * 2009-01-12 2010-09-30 A123 Systems, Inc. Busbar supports and methods of their use for battery systems
US20120021271A1 (en) * 2010-07-26 2012-01-26 Tom Tople Battery cell system with interconnected frames

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10665848B2 (en) 2015-01-05 2020-05-26 Cps Technology Holdings Llc Battery module bus bar carrier having guide extensions system and method
US11152672B2 (en) 2015-01-05 2021-10-19 Cps Technology Holdings Llc Battery module bus bar carrier having guide extensions system and method
CN107112461A (zh) * 2015-12-04 2017-08-29 株式会社Lg 化学 包括具有夹持部的盒的电池模块

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